-#include <liba.h>
+#include <stdc.h>
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xft/Xft.h>
+#include <stdlib.h>
+#include <string.h>
-char* Usage = "edit [FLAGS...] [FILES...]";
+Atom XA_REGISTRAR, XA_OPEN, XA_DONE;
-Option_T Options[] = {
- { .s = 'h', .l = "help", .a = 0, .d = "print this help message" },
- { .s = 'v', .l = "verbose", .a = 0, .d = "enable verbose mode" },
- { .s = 'f', .l = "flag", .a = 1, .d = "flag with an arg" },
- { .s = 'F', .l = "noflag", .a = 0, .d = "flag without an arg" },
- { .s = 'a', .l = "noflag", .a = 0, .d = "flag without an arg" },
- { .s = 'b', .l = "noflag", .a = 0, .d = "flag without an arg" },
- { .s = 'c', .l = "noflag", .a = 0, .d = "flag without an arg" },
- {0}
-};
+typedef struct XConf {
+ int state, fd, screen, width, height, mods;
+ Window root;
+ Display* display;
+ Visual* visual;
+ Colormap colormap;
+ unsigned depth;
+ Window self;
+} XConf;
+
+char* EditCmd[] = { "editor", "-l", 0, 0, 0 };
+
+char* abspath(char* path)
+{
+ char* ap = realpath(path, NULL);
+ if (!ap)
+ {
+ ap = strdup(path);
+ }
+ return ap;
+}
+
+int spawn(char* cmd)
+{
+ int pid = fork();
+ if (pid == 0)
+ {
+ exit(execvp(cmd, (char*[]){cmd, 0}));
+ }
+ return pid;
+}
+
+int x11_init(XConf* x)
+{
+ int ret = -1;
+ /* open the X display and get basic attributes */
+ if ( (x->display = XOpenDisplay(0)) )
+ {
+ x->root = DefaultRootWindow(x->display);
+ XWindowAttributes wa;
+ XGetWindowAttributes(x->display, x->root, &wa);
+ x->visual = wa.visual;
+ x->colormap = wa.colormap;
+ x->screen = DefaultScreen(x->display);
+ x->depth = DefaultDepth(x->display, x->screen);
+ ret = 0;
+ }
+ return ret;
+}
+
+void x11_mkwin(XConf* x, int width, int height, int evmask)
+{
+ /* create the main window */
+ x->width = width, x->height = height;
+ XSetWindowAttributes attr;
+ attr.event_mask = evmask
+ | EnterWindowMask
+ | ExposureMask
+ | VisibilityChangeMask
+ | StructureNotifyMask
+ ;
+ x->self = XCreateWindow(
+ x->display, x->root, 0, 0, x->width, x->height, 0, x->depth, InputOutput, x->visual,
+ CWEventMask,
+ &attr);
+
+ /* register interest in the delete window message */
+ Atom wmDeleteMessage = XInternAtom(x->display, "WM_DELETE_WINDOW", False);
+ XSetWMProtocols(x->display, x->self, &wmDeleteMessage, 1);
+}
+
+Window start_registrar(XConf* x)
+{
+ /* launch registrar if it isn't yet running */
+ if (None == XGetSelectionOwner(x->display, XA_REGISTRAR))
+ {
+ if (spawn("registrar") > 0)
+ {
+ sleep(1);
+ }
+ }
+ return XGetSelectionOwner(x->display, XA_REGISTRAR);
+}
+
+void prop_set(XConf* x, Window win, char* prop, char* value)
+{
+ Atom xa_prop = XInternAtom(x->display, prop, False);
+ XChangeProperty(
+ x->display, win, xa_prop, XA_STRING, 8, PropModeReplace,
+ (const unsigned char *)value, strlen(value)+1);
+}
+
+void edit_file(XConf* x, Window registrar, char* path, char* addr, int force)
+{
+ char host[8192];
+ path = abspath(path);
+ prop_set(x, x->self, "FILE", path);
+ prop_set(x, x->self, "ADDR", addr);
+ if (!gethostname(host, sizeof(host)))
+ {
+ prop_set(x, x->self, "HOST", host);
+ }
+ XChangeProperty(
+ x->display, registrar, XA_OPEN, XA_WINDOW, 32, PropModeAppend,
+ (const unsigned char *)&(x->self), 1);
+ EditCmd[2] = addr, EditCmd[3] = path;
+ if (force)
+ {
+ if (!fork())
+ exit(execvp(EditCmd[0], EditCmd));
+ }
+ else
+ {
+ /* wait for the "done" message */
+ for (XEvent e;;)
+ {
+ XNextEvent(x->display, &e);
+ if (e.type == ClientMessage)
+ {
+ if (e.xclient.message_type == XA_DONE)
+ {
+ break;
+ }
+ else if (e.xclient.message_type == XA_OPEN)
+ {
+ if (!fork())
+ {
+ exit(execvp(EditCmd[0], EditCmd));
+ }
+ break;
+ }
+ }
+ }
+ }
+ free(path);
+}
int main(int argc, char** argv)
{
- (void)argc;
- (void)argv;
- return 0;
-}
\ No newline at end of file
+ int ret = 0;
+ int force = 0;
+ if (argc == 0)
+ {
+ spawn("tide");
+ }
+ else
+ {
+ XConf x = {0};
+ x11_init(&x);
+ x11_mkwin(&x, 1, 1, 0);
+ XA_REGISTRAR = XInternAtom(x.display, "TIDE_REGISTRAR", PropertyChangeMask);
+ XA_OPEN = XInternAtom(x.display, "OPEN", 0);
+ XA_DONE = XInternAtom(x.display, "DONE", 0);
+ Window registrar = start_registrar(&x);
+ if (registrar != None)
+ {
+ /* Loop over files and send an OPEN message for each one. */
+ for (int i = 0; i < argc; i++)
+ {
+ char* addr = strrchr(argv[i], ':');
+ if (addr)
+ {
+ *addr = '\0', addr++;
+ }
+ edit_file(&x, registrar, argv[i], (addr ? addr : "0"), force);
+ }
+ XSync(x.display, False);
+ }
+ else
+ {
+ fprintf(stderr, "Failed to contact registrar.\n");
+ ret = 1;
+ }
+ }
+ return ret;
+}
--- /dev/null
+#define _XOPEN_SOURCE 700
+#include <stdlib.h>
+#include <string.h>
+
+char* abspath(char* path)
+{
+ char* ap = realpath(path, NULL);
+ if (!ap)
+ {
+ ap = strdup(path);
+ }
+ return ap;
+}
--- /dev/null
+#include <stdc.h>
+#include "dbc.h"
+#include "utf.h"
+#include <ctype.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#include "tide.h"
+#include "config.h"
+
+#ifndef NDEBUG
+static bool buf_valid(Buf* buf)
+{
+ return (
+ (buf->contents.bufsize > 0)
+ && (buf->contents.bufstart != NULL)
+ && (buf->contents.bufend != NULL)
+ && (buf->contents.gapstart != NULL)
+ && (buf->contents.gapend != NULL)
+ && (buf->contents.bufstart < buf->contents.bufend)
+ && (buf->contents.gapstart <= buf->contents.gapend)
+ && (buf->contents.gapstart >= buf->contents.bufstart)
+ && (buf->contents.gapend >= buf->contents.bufstart)
+ && (buf->contents.gapstart <= buf->contents.bufend)
+ && (buf->contents.gapend <= buf->contents.bufend)
+ );
+}
+#endif
+
+static void getcol(Buf* buf)
+{
+ require(buf != NULL);
+ Sel sel = buf->selection;
+ size_t pos = sel.end, curr = buf_bol(buf, pos);
+ for (sel.col = 0; curr < pos; curr = buf_byrune(buf, curr, 1))
+ {
+ sel.col += runewidth(sel.col, buf_getrat(buf, curr));
+ }
+ buf->selection = sel;
+}
+
+static void setcol(Buf* buf)
+{
+ require(buf != NULL);
+ Sel sel = buf->selection;
+ size_t bol = buf_bol(buf, sel.end);
+ size_t curr = bol, len = 0, i = 0;
+
+ /* determine the length of the line in columns */
+ for (; !buf_iseol(buf, curr); curr++)
+ {
+ len += runewidth(len, buf_getrat(buf, curr));
+ }
+
+ /* iterate over the runes until we reach the target column */
+ for (sel.end = bol, i = 0; i < sel.col && i < len;)
+ {
+ int width = runewidth(i, buf_getrat(buf, sel.end));
+ sel.end = buf_byrune(buf, sel.end, 1);
+ if (sel.col >= i && sel.col < (i + width))
+ {
+ break;
+ }
+ i += width;
+ }
+ buf->selection = sel;
+}
+
+static Sel selswap(Sel sel)
+{
+ size_t off = sel.beg;
+ sel.beg = sel.end;
+ sel.end = off;
+ return sel;
+}
+
+static Sel selget(Buf* buf)
+{
+ Sel sel = buf->selection;
+ return (sel.end < sel.beg ? selswap(sel) : sel);
+}
+
+static void selset(Buf* buf, Sel sel)
+{
+ buf->selection = sel;
+ getcol(buf);
+}
+
+static void putb(Buf* buf, char b, Sel* p_sel)
+{
+ range_add(&(buf->point), p_sel->end);
+ gapbuf_putb(&buf->contents, b, p_sel);
+}
+
+static void putch(Buf* buf, char b, Sel* p_sel)
+{
+ if (b != '\r')
+ {
+ if (b == '\n' && DosLineFeed)
+ {
+ putb(buf, '\r', p_sel);
+ putb(buf, '\n', p_sel);
+ }
+ else
+ {
+ putb(buf, b, p_sel);
+ }
+ buf->status = MODIFIED;
+ }
+}
+
+void buf_init(Buf* buf)
+{
+ require(buf != NULL);
+
+ /* reset the state to defaults */
+ gapbuf_init(&buf->contents);
+ buf->status = NORMAL;
+ buf->log.undo = NULL;
+ buf->log.redo = NULL;
+ buf->log.transid = -1;
+ buf->selection = (Sel){0,0,0};
+
+ ensure(buf_valid(buf));
+}
+
+void buf_setpath(Buf* buf, char* path)
+{
+ require(buf != NULL);
+ if (path)
+ {
+ free(buf->path);
+ buf->path = strdup(path);
+ ensure(buf->path != NULL);
+ }
+}
+
+void buf_load(Buf* buf, char* path)
+{
+ require(buf != NULL);
+ if (path)
+ {
+ buf->path = strdup(path);
+ gapbuf_load(&buf->contents, buf->path);
+
+ /* reset buffer state */
+ buf->status = NORMAL;
+ buf_logclear(buf);
+
+ /* use the EOL style of the first line to determine EOL style */
+ DosLineFeed = (gapbuf_getb(&buf->contents, buf_eol(buf, 0)) == '\r');
+ }
+ ensure(buf_valid(buf));
+}
+
+void buf_reload(Buf* buf)
+{
+ require(buf != NULL);
+ char* path = buf->path;
+ buf->path = NULL;
+ buf_init(buf);
+ buf_load(buf, path);
+}
+
+static void trim_whitespace(Buf* buf)
+{
+ require(buf != NULL);
+ require(buf_end(buf) > 0);
+
+ Sel sel = buf->selection;
+ bool swapped = (sel.beg > sel.end);
+ if (swapped)
+ {
+ sel = selswap(sel);
+ }
+
+ unsigned prev = 1;
+ buf->selection.beg = buf->selection.end = 0;
+ buf_logstart(buf);
+ while (prev != buf->selection.end)
+ {
+ int r = gapbuf_getb(&buf->contents, buf->selection.end);
+ /* If we reached a newline, then delete whatever we have selected */
+ if (r == '\r' || r == '\n')
+ {
+ buf->selection.beg = buf_byrune(buf, buf->selection.beg, +1);
+ Sel del = buf->selection;
+ sel.beg -= (del.beg < sel.beg ? (min(del.end, sel.beg) - del.beg) : 0);
+ sel.end -= (del.beg < sel.end ? (min(del.end, sel.end) - del.beg) : 0);
+ buf_del(buf);
+ }
+
+ /* if current char is not whitespace, then shrink the selection */
+ if (r != ' ' && r != '\t')
+ {
+ buf->selection.beg = buf->selection.end;
+ }
+
+ /* move to the next character */
+ prev = buf->selection.end;
+ buf->selection.end = buf_byrune(buf, buf->selection.end, +1);
+ }
+ buf_logstop(buf);
+ if (swapped)
+ {
+ sel = selswap(sel);
+ }
+ selset(buf, sel);
+}
+
+int buf_save(Buf* buf, char* path)
+{
+ require(buf != NULL);
+ buf_setpath(buf, path);
+ if (buf_end(buf) > 0)
+ {
+ if (TrimOnSave && (buf_end(buf) > 0))
+ {
+ trim_whitespace(buf);
+ }
+
+ long nwrite = gapbuf_save(&buf->contents, buf->path);
+ buf->status = (nwrite >= 0 ? NORMAL : ERRORED);
+
+ if (buf->status == NORMAL)
+ {
+ buf->log.save = buf->log.undo;
+ }
+ }
+ ensure(buf_valid(buf));
+ return buf->status;
+}
+
+/* Undo/Redo Operations
+ ******************************************************************************/
+void buf_logstart(Buf* buf)
+{
+ editlog_seqstart(&(buf->log));
+}
+
+void buf_logstop(Buf* buf)
+{
+ editlog_seqstop(&(buf->log));
+}
+
+void buf_logclear(Buf* buf)
+{
+ editlog_clear(&(buf->log));
+}
+
+void buf_lastins(Buf* buf)
+{
+ editlog_lastins(&(buf->log), &(buf->selection));
+}
+
+void buf_undo(Buf* buf)
+{
+ editlog_undo(buf);
+}
+
+void buf_redo(Buf* buf)
+{
+ editlog_redo(buf);
+}
+
+/* Basic Operations and Accessors
+ ******************************************************************************/
+size_t buf_end(Buf* buf)
+{
+ return gapbuf_end(&buf->contents);
+}
+
+int buf_getrat(Buf* buf, size_t off)
+{
+ require(buf != NULL);
+ size_t rlen = 0;
+ Rune rune = 0;
+ if (gapbuf_getb(&buf->contents, off) == '\r' && gapbuf_getb(&buf->contents, off+1) == '\n')
+ {
+ rune = '\n';
+ }
+ else
+ {
+ while ( !utf8decode(&rune, &rlen, gapbuf_getb(&buf->contents, off++)) )
+ {
+ }
+ }
+ return rune;
+}
+
+void buf_putc(Buf* buf, int c)
+{
+ require(buf != NULL);
+ char utf8buf[UTF_MAX+1] = {0};
+ (void)utf8encode(utf8buf, c);
+ buf_puts(buf, utf8buf);
+ ensure(buf_valid(buf));
+}
+
+void buf_puts(Buf* buf, char* s)
+{
+ require(buf != NULL);
+ buf_del(buf);
+ size_t beg = buf_selbeg(buf);
+ if (s && *s)
+ {
+ for (; *s; s++)
+ {
+ putch(buf, *s, &(buf->selection));
+ if (buf->oninsert)
+ {
+ buf->oninsert(*s);
+ }
+ }
+ editlog_add(buf, beg, buf_selend(buf), NULL);
+ }
+ ensure(buf_valid(buf));
+}
+
+int buf_getc(Buf* buf)
+{
+ require(buf != NULL);
+ return buf_getrat(buf, buf->selection.end);
+}
+
+char* buf_gets(Buf* buf)
+{
+ require(buf != NULL);
+ Sel sel = selget(buf);
+ size_t nbytes = sel.end - sel.beg;
+ char* str = malloc(nbytes+1);
+ for (size_t i = 0; i < nbytes; i++)
+ {
+ str[i] = gapbuf_getb(&buf->contents, sel.beg + i);
+ }
+ str[nbytes] = '\0';
+ return str;
+}
+
+char* buf_getsat(Buf* buf, size_t beg, size_t end)
+{
+ require(buf != NULL);
+ Sel sel = selget(buf);
+ buf->selection = (Sel){ .beg = beg, .end = end };
+ char* str = buf_gets(buf);
+ buf->selection = sel;
+ return str;
+}
+
+void buf_del(Buf* buf)
+{
+ require(buf != NULL);
+ Sel sel = selget(buf);
+ size_t nbytes = sel.end - sel.beg;
+ if (nbytes > 0)
+ {
+ /* perform the delete */
+ buf->status = MODIFIED;
+ char* str = buf_gets(buf);
+ range_del(&(buf->point), sel.beg, sel.end);
+ gapbuf_del(&buf->contents, sel.beg, nbytes);
+ sel.end = sel.beg;
+ buf->selection = sel;
+ editlog_add(buf, sel.beg, sel.end, str);
+ }
+ ensure(buf_valid(buf));
+}
+
+/* Positional and Movement Operations
+ ******************************************************************************/
+static Rune nextrune(Buf* buf, size_t off, int move, bool (*testfn)(Rune))
+{
+ bool ret = false;
+ size_t end = buf_end(buf);
+ if (move < 0 && off > 0)
+ {
+ ret = testfn(buf_getrat(buf, off-1));
+ }
+ else if (move > 0 && off < end)
+ {
+ ret = testfn(buf_getrat(buf, off+1));
+ }
+ return ret;
+}
+
+static void selline(Buf* buf)
+{
+ Sel sel = selget(buf);
+ sel.beg = buf_bol(buf, sel.end);
+ sel.end = buf_eol(buf, sel.end);
+ sel.end = buf_byrune(buf, sel.end, RIGHT);
+ selset(buf, sel);
+}
+
+static void selblock(Buf* buf, Rune first, Rune last)
+{
+ Sel sel = selget(buf);
+ int balance = 0, dir = 0;
+ size_t beg, end = sel.end;
+
+ /* figure out which end of the block we're starting at */
+ if (buf_getrat(buf, end) == first)
+ {
+ dir = +1, balance++, beg = end++;
+ }
+ else if (buf_getrat(buf, end) == last)
+ {
+ dir = -1, balance--, beg = end--;
+ }
+ else
+ {
+ /* do nothing */
+ }
+
+ if (dir != 0)
+ {
+ /* scan for a blanced set of braces */
+ while (true)
+ {
+ if (buf_getrat(buf, end) == first)
+ {
+ balance++;
+ }
+ else if (buf_getrat(buf, end) == last)
+ {
+ balance--;
+ }
+
+ if (balance == 0 || end >= buf_end(buf) || end == 0)
+ {
+ break;
+ }
+ else
+ {
+ end += dir;
+ }
+ }
+
+ /* update the selection if we found a block */
+ if (balance == 0)
+ {
+ if (end > beg)
+ {
+ beg++;
+ }
+ else
+ {
+ end++;
+ }
+ buf->selection.beg = beg;
+ buf->selection.end = end;
+ }
+ }
+}
+
+static int bytes_match(Buf* buf, size_t mbeg, size_t mend, char* str)
+{
+ int ret = 0;
+ for (; *str && mbeg < mend; str++, mbeg++)
+ {
+ int cmp = *str - gapbuf_getb(&buf->contents, mbeg);
+ if (cmp != 0)
+ {
+ ret = cmp;
+ break;
+ }
+ }
+ return ret;
+}
+
+bool buf_isbol(Buf* buf, size_t off)
+{
+ require(buf != NULL);
+ size_t bol = buf_bol(buf, off);
+ return (bol == off);
+}
+
+bool buf_iseol(Buf* buf, size_t off)
+{
+ require(buf != NULL);
+ Rune r = buf_getrat(buf, off);
+ return (r == '\r' || r == '\n');
+}
+
+size_t buf_bol(Buf* buf, size_t off)
+{
+ require(buf != NULL);
+ for (; !buf_iseol(buf, off-1); off--)
+ {
+ }
+ return off;
+}
+
+size_t buf_eol(Buf* buf, size_t off)
+{
+ require(buf != NULL);
+ for (; !buf_iseol(buf, off); off++)
+ {
+ }
+ return off;
+}
+
+void buf_selword(Buf* buf, bool (*isword)(Rune))
+{
+ require(buf != NULL);
+ Sel sel = selget(buf);
+ for (; isword(buf_getrat(buf, sel.beg-1)); sel.beg--)
+ {
+ }
+ for (; isword(buf_getrat(buf, sel.end)); sel.end++)
+ {
+ }
+ buf->selection = sel;
+}
+
+void buf_selall(Buf* buf)
+{
+ require(buf != NULL);
+ buf->selection = (Sel){ .beg = 0, .end = buf_end(buf) };
+}
+
+static bool selquote(Buf* buf, Rune c)
+{
+ bool selected = false;
+ Rune curr = buf_getc(buf);
+ size_t nextoff = buf_byrune(buf, buf->selection.end, RIGHT);
+ Rune prev = buf_getrat(buf, buf_byrune(buf, buf->selection.end, LEFT));
+ Rune next = buf_getrat(buf, buf_byrune(buf, buf->selection.end, RIGHT));
+ if (prev == c || curr == c)
+ {
+ size_t bend = buf_end(buf);
+ buf->selection.beg = buf->selection.end = (prev == c ? buf->selection.end : nextoff);
+ size_t selend = buf->selection.end;
+ for (; selend < bend && buf_getrat(buf, selend) != c; selend = buf_byrune(buf, selend, RIGHT))
+ {
+ }
+ if (buf_getrat(buf, selend) == c)
+ {
+ buf->selection.end = selend;
+ }
+ selected = true;
+ }
+ else if (next == c)
+ {
+ buf->selection.beg = buf->selection.end;
+ buf->selection.end = nextoff;
+ size_t selbeg = buf->selection.beg;
+ for (; selbeg > 0 && buf_getrat(buf, selbeg) != c; selbeg = buf_byrune(buf, selbeg, LEFT))
+ {
+ }
+ if (buf_getrat(buf, selbeg) == c)
+ {
+ buf->selection.beg = buf_byrune(buf, selbeg, RIGHT);
+ }
+ selected = true;
+ }
+ return selected;
+}
+
+void buf_selctx(Buf* buf, bool (*isword)(Rune))
+{
+ require(buf != NULL);
+ size_t bol = buf_bol(buf, buf->selection.end);
+ Rune curr = buf_getc(buf);
+ if (curr == '(' || curr == ')')
+ {
+ selblock(buf, '(', ')');
+ }
+ else if (curr == '[' || curr == ']')
+ {
+ selblock(buf, '[', ']');
+ }
+ else if (curr == '{' || curr == '}')
+ {
+ selblock(buf, '{', '}');
+ }
+ else if (curr == '<' || curr == '>')
+ {
+ selblock(buf, '<', '>');
+ }
+ else if (buf->selection.end == bol || curr == '\n')
+ {
+ selline(buf);
+ }
+ else if (selquote(buf, '"') || selquote(buf, '`') || selquote(buf, '\''))
+ {
+ ; /* condition performs selection */
+ }
+ else if (isword(curr))
+ {
+ buf_selword(buf, isword);
+ }
+ else
+ {
+ buf_selword(buf, risbigword);
+ }
+ getcol(buf);
+}
+
+size_t buf_byrune(Buf* buf, size_t pos, int count)
+{
+ require(buf != NULL);
+ int move = (count < 0 ? -1 : 1);
+ count *= move; // remove the sign if there is one
+ for (; count > 0; count--)
+ {
+ if (pos > 0 && move < 0)
+ {
+ if (gapbuf_getb(&buf->contents, pos-2) == '\r' && gapbuf_getb(&buf->contents, pos-1) == '\n')
+ {
+ pos -= 2;
+ }
+ else
+ {
+ pos += move;
+ }
+ }
+ else if (pos < buf_end(buf) && move > 0)
+ {
+ if (gapbuf_getb(&buf->contents, pos) == '\r' && gapbuf_getb(&buf->contents, pos+1) == '\n')
+ {
+ pos += 2;
+ }
+ else
+ {
+ pos += move;
+ }
+ }
+ }
+ return pos;
+}
+
+static size_t byword(Buf* buf, size_t off, int count)
+{
+ require(buf != NULL);
+ int move = (count < 0 ? -1 : 1);
+ count *= move; // remove the sign if there is one
+
+ for (; count > 0; count--)
+ {
+ while (nextrune(buf, off, move, risblank))
+ {
+ off = buf_byrune(buf, off, move);
+ }
+
+ if (nextrune(buf, off, move, risword))
+ {
+ while (nextrune(buf, off, move, risword))
+ {
+ off = buf_byrune(buf, off, move);
+ }
+
+ if (move > 0)
+ {
+ off = buf_byrune(buf, off, move);
+ }
+ }
+ else
+ {
+ off = buf_byrune(buf, off, move);
+ }
+ }
+ return off;
+}
+
+static size_t byline(Buf* buf, size_t pos, int count)
+{
+ require(buf != NULL);
+ int move = (count < 0 ? -1 : 1);
+ count *= move; // remove the sign if there is one
+ for (; count > 0; count--)
+ {
+ if (move < 0)
+ {
+ if (pos > buf_eol(buf, 0))
+ {
+ pos = buf_byrune(buf, buf_bol(buf, pos), LEFT);
+ }
+ }
+ else
+ {
+ size_t next = buf_byrune(buf, buf_eol(buf, pos), RIGHT);
+ if (next <= buf_end(buf))
+ {
+ pos = next;
+ }
+ }
+ }
+ return pos;
+}
+
+bool buf_findstr(Buf* buf, int dir, char* str)
+{
+ require(buf != NULL);
+ bool found = false;
+ size_t len = strlen(str);
+ size_t start = buf->selection.beg;
+ size_t mbeg = (start + dir);
+ size_t mend = (mbeg + len);
+ size_t nleft = buf_end(buf);
+ for (; (mbeg != start) && nleft; nleft--)
+ {
+ if ((gapbuf_getb(&buf->contents, mbeg) == str[0]) &&
+ (gapbuf_getb(&buf->contents, mend-1) == str[len-1]) &&
+ (0 == bytes_match(buf, mbeg, mend, str)))
+ {
+ buf->selection.beg = mbeg, buf->selection.end = mend;
+ found = true;
+ break;
+ }
+ mbeg += dir, mend += dir;
+ if (mend > buf_end(buf))
+ {
+ mbeg = (dir < 0 ? buf_end(buf)-len : 0), mend = mbeg + len;
+ }
+ }
+ return found;
+}
+
+void buf_setln(Buf* buf, size_t line)
+{
+ require(buf != NULL);
+ size_t curr = 0, end = buf_end(buf);
+ while (line > 1 && curr < end)
+ {
+ size_t next = byline(buf, curr, DOWN);
+ if (curr == next)
+ {
+ break;
+ }
+ line--, curr = next;
+ }
+ buf->selection.beg = curr;
+ buf->selection.end = curr;
+}
+
+void buf_getln(Buf* buf, size_t* begln, size_t* endln)
+{
+ require(buf != NULL);
+ size_t line = 1, curr = 0, end = buf_end(buf);
+ size_t sbeg = buf_selbeg(buf), send = buf_selend(buf);
+ while (curr < end)
+ {
+ size_t next = byline(buf, curr, DOWN);
+
+ if (curr <= sbeg && sbeg < next)
+ {
+ *begln = line, *endln = line;
+ }
+
+ if (curr <= send && send < next)
+ {
+ *endln = line;
+ break;
+ }
+
+ if (curr == next)
+ {
+ break;
+ }
+ line++;
+ curr = next;
+ }
+}
+
+size_t buf_selbeg(Buf* buf)
+{
+ require(buf != NULL);
+ return selget(buf).beg;
+}
+
+size_t buf_selend(Buf* buf)
+{
+ require(buf != NULL);
+ return selget(buf).end;
+}
+
+size_t buf_selsz(Buf* buf)
+{
+ require(buf != NULL);
+ return (selget(buf).end - selget(buf).beg);
+}
+
+void buf_selln(Buf* buf)
+{
+ require(buf != NULL);
+ /* Expand the selection to completely select the lines covered */
+ Sel sel = selget(buf);
+ sel.beg = buf_bol(buf, sel.beg);
+ if (!buf_iseol(buf, sel.end-1) || sel.end == sel.beg)
+ {
+ sel.end = buf_eol(buf, sel.end);
+ sel.end = buf_byrune(buf, sel.end, RIGHT);
+ }
+ selset(buf, sel);
+}
+
+void buf_selclr(Buf* buf, int dir)
+{
+ require(buf != NULL);
+ Sel sel = selget(buf);
+ if (dir > 0)
+ {
+ sel.beg = sel.end;
+ }
+ else
+ {
+ sel.end = sel.beg;
+ }
+ selset(buf, sel);
+}
+
+bool buf_insel(Buf* buf, size_t off)
+{
+ require(buf != NULL);
+ return (off >= buf_selbeg(buf) && off < buf_selend(buf));
+}
+
+bool buf_inpoint(Buf* buf, size_t off)
+{
+ require(buf != NULL);
+ bool empty_point = (buf->point.beg == buf->point.end) && (off == buf->point.beg);
+ bool in_range = (off >= buf->point.beg && off < buf->point.end);
+ return (buf->oninsert && (empty_point || in_range));
+}
+
+char* buf_fetch(Buf* buf, bool (*isword)(Rune), size_t off)
+{
+ require(buf != NULL);
+ require(isword != NULL);
+ char* str = NULL;
+ Sel prev = buf->selection;
+ if (!buf_insel(buf, off))
+ {
+ buf->selection = (Sel){ .beg = off, .end = off };
+ buf_selword(buf, isword);
+ }
+ str = buf_gets(buf);
+ buf->selection = prev;
+ return str;
+}
+
+size_t buf_moveby(Buf* buf, int bything, size_t pos, int count)
+{
+ size_t newpos = pos;
+ switch (bything)
+ {
+ case BY_WORD:
+ newpos = byword(buf, pos, count);
+ break;
+ case BY_LINE:
+ newpos = byline(buf, pos, count);
+ break;
+ case BY_RUNE:
+ default:
+ newpos = buf_byrune(buf, pos, count);
+ break;
+ }
+ return newpos;
+}
+
+void buf_selmove(Buf* buf, bool extsel, int move, int bything)
+{
+ if (buf_selsz(buf) && !extsel)
+ {
+ buf_selclr(buf, move);
+ if (bything == BY_LINE)
+ {
+ /* we perform one less move if we are going down but selection
+ ends on the beginning of the next line */
+ if (move > 0 && buf_isbol(buf, buf_selend(buf)))
+ {
+ move--;
+ }
+ buf->selection.end = buf_moveby(buf, bything, buf->selection.end, move);
+ }
+ }
+ else
+ {
+ buf->selection.end = buf_moveby(buf, bything, buf->selection.end, move);
+ }
+
+ if (bything == BY_LINE)
+ {
+ setcol(buf); // set cursor to correct column
+ }
+ else
+ {
+ getcol(buf); // update column tracking with cursor position
+ }
+
+ /* collapse the selection if necessary, without updating column */
+ if (!extsel)
+ {
+ Sel sel = selget(buf);
+ if (move > 0)
+ {
+ sel.beg = sel.end;
+ }
+ else
+ {
+ sel.end = sel.beg;
+ }
+ buf->selection = sel;
+ }
+}
+
+void buf_selmoveto(Buf* buf, bool extsel, size_t off)
+{
+ buf->selection.end = (off > buf_end(buf) ? buf_end(buf) : off);
+ if (!extsel)
+ {
+ buf->selection.beg = buf->selection.end;
+ }
+ getcol(buf);
+}
--- /dev/null
+/** @file */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-variable"
+
+enum { Off = 0, On = 1 };
+
+enum { /* Color Names */
+ Red, Purple, Orange,
+ EditBg, EditFg, EditSel,
+ TagsBg, TagsFg, TagsSel,
+ ScrollBg, ScrollFg,
+ VerBdr, HorBdr, Point,
+ ClrCount
+};
+
+#define CMD_TIDE "!tide"
+#define CMD_PICKFILE "!pickfile ."
+#define CMD_COMPLETE "picktag print tags"
+#define CMD_FCOMPLETE "fcomplete"
+#define CMD_GOTO_TAG "!picktag fetch tags"
+
+/* Command used to open file in editor at a given line */
+static char* EditCmd[] = { "tide", "-l", 0, 0, 0 };
+
+/* The shell: Filled in with $SHELL. Used to execute commands */
+static char* ShellCmd[] = { 0, "-c", 0, 0 };
+
+/* Sed command used to execute commands marked with ':' sigil */
+static char* SedCmd[] = { "sed", "-Ee", 0, 0 };
+
+/* Command used to fetch some text based on a set of rules */
+static char* FetchCmd[] = { "fetch", 0, 0 };
+
+/* Default tag region text in editor windows */
+static char* TagString = "Del Put Get | Font Tabs Eol | x+ w+ !st !term | Find ";
+
+/* List of font patterns available to the editor */
+static char* Fonts[2] = {
+ "Verdana:size=12",
+ "Liberation Mono:size=12"
+};
+
+#ifdef INCLUDE_DEFS
+/* Integer config options */
+int WinWidth = 640; /* default window width */
+int WinHeight = 480; /* default window height */
+int ScrollWidth = 8; /* width in pixels of the scrollbar */
+int Timeout = 100; /* number of milliseconds to wait before poll() times out */
+int TabWidth = 4; /* number of spaces tab characters will be expanded to */
+int ScrollBy = 1; /* number of lines to scroll by on mouse wheel events */
+int ClickTime = 500; /* number of milliseconds after a click wehre multi-clicks will be recognized */
+int CopyIndent = On; /* whether indentation should be copied from previous line or not */
+int TrimOnSave = On; /* whether trailing whitespace should be removed on save or not */
+int ExpandTabs = On; /* whether tab characters should be expanded to spaces or not */
+int DosLineFeed = Off; /* use \r\n line endings by default */
+int Margin = 50;
+#else
+extern int WinWidth, WinHeight, ScrollWidth, Timeout, TabWidth, ScrollBy,
+ ClickTime, CopyIndent, TrimOnSave, ExpandTabs, DosLineFeed, Margin;
+#endif
+
+static int Palette[ClrCount] = {
+#if 0 /* Original Acme Colors */
+ [EditBg] = 0xFFFFEA, /* Edit region background */
+ [EditFg] = 0x000000, /* Edit region text */
+ [EditSel] = 0xEEEE9E, /* Edit region selection */
+ [TagsBg] = 0xEAFFFF, /* Tags region background */
+ [TagsFg] = 0x000000, /* Tags region text */
+ [TagsSel] = 0x9EEEEE, /* Tags region selection */
+ [ScrollBg] = 0x99994C, /* Scroll region background */
+ [ScrollFg] = 0xFFFFEA, /* Scroll region foreground */
+ [VerBdr] = 0x99994C, /* Vertical border */
+ [HorBdr] = 0x000000, /* Horizontal border */
+ [Point] = 0xEFEFDA, /* Point background */
+ [Purple] = 0x6666CC, /* Purple */
+ [Red] = 0xCC0000, /* Red */
+ [Orange] = 0xFF7700, /* Orange */
+#else
+ [EditBg] = 0xF5F5F0, /* Edit region background */
+ [EditFg] = 0x222222, /* Edit region text */
+ [EditSel] = 0xAACCEE, /* Edit region selection */
+
+ [TagsBg] = 0xF5F5F0, /* Tags region background */
+ [TagsFg] = 0x222222, /* Tags region text */
+ [TagsSel] = 0xAACCEE, /* Tags region selection */
+
+ [ScrollBg] = 0x959590, /* Scroll region background */
+ [ScrollFg] = 0xF5F5F0, /* Scroll region foreground */
+
+ [VerBdr] = 0x959590, /* Vertical border */
+ [HorBdr] = 0x222222, /* Horizontal border */
+
+ [Point] = 0xD5D5D0, /* Point background */
+ [Purple] = 0x6666CC, /* Purple */
+ [Red] = 0xCC0000, /* Red */
+ [Orange] = 0xFF7700, /* Orange */
+#endif
+};
+
+#pragma GCC diagnostic pop
--- /dev/null
+#include <stdc.h>
+#include "dbc.h"
+#include <stdio.h>
+#include <signal.h>
+#include "io.h"
+
+#ifndef NDEBUG
+
+static char ErrMsg[8192];
+static char* DumpPath = NULL;
+static void (*DumpFn)(FILE*) = NULL;
+
+static void dump_and_abort(char* msg)
+{
+ telem_send("%s", msg);
+ FILE* f = (DumpPath ? fopen(DumpPath, "w") : stderr);
+ fprintf(f, "%s\n\n", msg);
+ if (DumpFn)
+ {
+ DumpFn(f);
+ }
+ fprintf(f, "\n%s\n", msg);
+ fclose(f);
+ _Exit(1);
+}
+
+static void handle_signal(int sig)
+{
+ if (SIGABRT == sig)
+ {
+ dump_and_abort("SIGABRT - Process abort signal");
+ }
+ else if (SIGBUS == sig)
+ {
+ dump_and_abort("SIGBUS - Access to an undefined portion of a memory object");
+ }
+ else if (SIGFPE == sig)
+ {
+ dump_and_abort("SIGFPE - Erroneous arithmetic operation");
+ }
+ else if (SIGILL == sig)
+ {
+ dump_and_abort("SIGILL - Illegal instruction");
+ }
+ else if (SIGSEGV == sig)
+ {
+ dump_and_abort("SIGSEGV - Invalid memory reference");
+ }
+ else if (SIGALRM == sig)
+ {
+ dump_and_abort("SIGALRM - Watchdog timer expired");
+ }
+}
+
+void dbc_init(char* path, void (*dumpfn)(FILE*))
+{
+ DumpPath = path;
+ DumpFn = dumpfn;
+ signal(SIGABRT, handle_signal);
+ signal(SIGBUS, handle_signal);
+ signal(SIGFPE, handle_signal);
+ signal(SIGILL, handle_signal);
+ signal(SIGSEGV, handle_signal);
+}
+
+void dbc_require(bool success, char* text, char* file, int line)
+{
+ if (!success)
+ {
+ snprintf(ErrMsg, sizeof(ErrMsg), "%s:%d: pre-condition failed (%s)", file, line, text);
+ dump_and_abort(ErrMsg);
+ }
+}
+
+void dbc_ensure(bool success, char* text, char* file, int line)
+{
+ if (!success)
+ {
+ snprintf(ErrMsg, sizeof(ErrMsg), "%s:%d: post-condition failed (%s)", file, line, text);
+ dump_and_abort(ErrMsg);
+ }
+}
+
+#endif
--- /dev/null
+/** @file */
+#define require(cond) \
+ dbc_require(cond, #cond, __FILE__, __LINE__)
+
+#define ensure(cond) \
+ dbc_ensure(cond, #cond, __FILE__, __LINE__)
+
+#ifndef NDEBUG
+ void dbc_init(char* path, void (*dumpfn)(FILE*));
+ void dbc_require(bool success, char* text, char* file, int line);
+ void dbc_ensure(bool success, char* text, char* file, int line);
+#else
+ #define dbc_init(a,b) ((void)0)
+ #define dbc_require(a,b,c,d) ((void)0)
+ #define dbc_ensure(a,b,c,d) ((void)0)
+#endif
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+
+#include "tide.h"
+#include "config.h"
+
+void draw_rect(XConf* x, int color, int posx, int posy, int width, int height)
+{
+ x11_draw_rect(x, Palette[color], posx, posy, width, height);
+}
+
+void draw_statbox(XConf* x, int status)
+{
+ draw_rect(x, VerBdr, ScrollWidth, 0, 1, x->height/4);
+ switch (status) {
+ case NORMAL: draw_rect(x, TagsBg, 0, 0, ScrollWidth, x->height/4); break;
+ case MODIFIED: draw_rect(x, Purple, 0, 0, ScrollWidth, x->height/4); break;
+ case OUTDATED: draw_rect(x, Orange, 0, 0, ScrollWidth, x->height/4); break;
+ case ERRORED: draw_rect(x, Red, 0, 0, ScrollWidth, x->height/4); break;
+ }
+}
+
+int draw_hrule(XConf* x, drawcsr* csr)
+{
+ draw_rect(x, HorBdr, 0, csr->y + 1, x->width, 1);
+ csr->y += 2;
+ return (csr->y - 2);
+}
+
+void draw_view(XConf* x, View* view, XftFont* font, size_t nrows, drawcsr* csr, int bg, int fg, int sel, bool csrsync)
+{
+ int nspecs = 0;
+ XftGlyphSpec* specs = NULL;
+ size_t fheight = font->height;
+ bool csr_drawn = false;
+ /* draw the view to the window */
+ view_resize(view, (csr->w - csr->x - 2) - (2* Margin), nrows);
+ view_update(view);
+ draw_rect(x, bg, csr->x, csr->y, csr->w, ((nrows + 1) * fheight) + 9);
+ for (size_t i = 0; i < nrows; i++)
+ {
+ Row* row = view_getrow(view, i + view->index);
+ size_t posx = (csr->x + 2 + Margin), y = (csr->y + 2 + (i * fheight));
+ if (row->off == buf_end(&(view->buffer)))
+ {
+ if (buf_end(&(view->buffer)) == buf_selend(&(view->buffer)))
+ {
+ draw_csr(x, view, fg, fheight, posx, y, csr_drawn);
+ }
+ break;
+ }
+ else
+ {
+ for (size_t i = 0; i < row->len; i++)
+ {
+ int rune = row->cols[i].rune;
+ if (rune == '\r' || rune == '\n' || rune == '\t')
+ rune = ' ';
+ if (buf_inpoint(&(view->buffer), row->cols[i].off))
+ draw_rect(x, Point, posx, y, row->cols[i].width, fheight);
+ if (buf_insel(&(view->buffer), row->cols[i].off))
+ draw_rect(x, sel, posx, y, row->cols[i].width, fheight);
+ if (row->cols[i].off == view->buffer.selection.end)
+ csr_drawn = draw_csr(x, view, fg, fheight, posx, y, csr_drawn);
+ if (csrsync && row->cols[i].off == view->buffer.selection.beg)
+ {
+ //XWarpPointer(x->display, None, x->self, 0, 0, x->width, x->height, posx + row->cols[i].width/2, y + fheight*3/4);
+ csrsync = false;
+ }
+ specs = realloc(specs, sizeof(XftGlyphSpec) * ++nspecs);
+ specs[nspecs-1].glyph = XftCharIndex(x->display, font, rune);
+ specs[nspecs-1].x = posx;
+ specs[nspecs-1].y = y + font->ascent;
+ posx += row->cols[i].width;
+ }
+ }
+ }
+ x11_draw_glyphs(x, Palette[fg], font, specs, nspecs);
+ csr->y += (nrows * fheight) + 3;
+ free(specs);
+}
+
+bool draw_csr(XConf* x, View* view, int fg, size_t fheight, int posx, int posy, bool csrdrawn)
+{
+ if (!csrdrawn && !view_selsize(view))
+ {
+ draw_rect(x, fg, posx-1, posy, 3, 3);
+ draw_rect(x, fg, posx, posy, 1, fheight);
+ draw_rect(x, fg, posx-1, posy+fheight-3, 3, 3);
+ csrdrawn = true;
+ }
+ return csrdrawn;
+}
+
+void draw_scroll(XConf* x, drawcsr* csr, View* view, int divider)
+{
+ size_t bend = buf_end(&(view->buffer));
+ if (bend == 0) bend = 1;
+ if (!view->rows || !view->nrows) return;
+ size_t vbeg = view->rows[0]->off;
+ size_t vend = view->rows[view->nrows-1]->off + view->rows[view->nrows-1]->len;
+ double scroll_vis = (double)(vend - vbeg) / (double)bend;
+ double scroll_off = ((double)vbeg / (double)bend);
+ size_t thumbreg = (csr->h - divider) + 4;
+ size_t thumboff = (size_t)((thumbreg * scroll_off) + divider);
+ size_t thumbsz = (size_t)(thumbreg * scroll_vis);
+ if (thumbsz < 5) thumbsz = 5;
+ draw_rect(x, VerBdr, ScrollWidth, divider + 2, 1, thumbreg);
+ draw_rect(x, ScrollBg, 0, divider + 2, ScrollWidth, thumbreg);
+ draw_rect(x, ScrollFg, 0, thumboff + 2, ScrollWidth, thumbsz);
+}
--- /dev/null
+#include <stdc.h>
+#include "dbc.h"
+#include "utf.h"
+
+#include "tide.h"
+#include "config.h"
+
+static Log* mklog(Buf* buf, size_t beg, size_t end, char* data, Log* next)
+{
+ Log* log = calloc(1, sizeof(Log));
+ log->transid = (buf->log.transid < 0 ? 0 : buf->log.transid);
+ log->beg = beg;
+ log->end = end;
+ log->data = data;
+ log->next = next;
+ return log;
+}
+
+static void log_swap(Buf* buf, Log** src, Log** dest)
+{
+ Log* item = *src;
+ if (item)
+ {
+ *src = item->next;
+ buf->selection.beg = item->beg;
+ buf->selection.end = item->end;
+ if (item->data)
+ {
+ /* reinsert deleted bytes */
+ for (char* s = item->data; s && *s; s++, item->end++)
+ {
+ range_add(&(buf->point), buf->selection.end);
+ gapbuf_putb(&buf->contents, *s, &(buf->selection));
+ buf->status = MODIFIED;
+ }
+ free(item->data);
+ item->data = NULL;
+ buf->selection.beg = item->beg;
+ buf->selection.end = item->end;
+ }
+ else
+ {
+ /* delete the added bytes */
+ Sel sel = buf->selection;
+ item->data = buf_gets(buf);
+ range_del(&(buf->point), item->beg, item->end);
+ gapbuf_del(&buf->contents, sel.beg, (item->end - item->beg));
+ sel.end = sel.beg;
+ buf->selection = sel;
+ item->beg = sel.beg;
+ item->end = sel.end;
+ }
+
+ /* push item onto destination stack */
+ item->next = *dest;
+ *dest = item;
+ /* undo recursively if this is part of a transaction */
+ if (*src && item->transid && item->transid == (*src)->transid)
+ {
+ log_swap(buf, src, dest);
+ }
+
+ if (buf->log.save == buf->log.undo)
+ {
+ buf->status = NORMAL;
+ }
+ }
+}
+
+static void log_clear(Log** list)
+{
+ while (*list)
+ {
+ Log* deadite = *list;
+ *list = (*list)->next;
+ if (deadite->data)
+ {
+ free(deadite->data);
+ }
+ free(deadite);
+ }
+}
+
+void editlog_seqstart(EditLog* log)
+{
+ require(log != NULL);
+ log->transid = abs(log->transid);
+}
+
+void editlog_seqstop(EditLog* log)
+{
+ require(log != NULL);
+ if (log->transid > 0)
+ {
+ log->transid = -(log->transid + 1);
+ }
+}
+
+void editlog_clear(EditLog* log)
+{
+ require(log != NULL);
+ log_clear(&(log->redo));
+ log_clear(&(log->undo));
+}
+
+void editlog_lastins(EditLog* elog, Sel* p_sel)
+{
+ require(elog != NULL);
+ Log* log = elog->undo;
+ if (log)
+ {
+ Sel sel = { .beg = log->beg, .end = log->end };
+ size_t delsize = 0;
+ int transid = log->transid;
+
+ /* try and expand the selected region to encompass related inserts */
+ for (; log && (log->transid == transid); log = log->next)
+ {
+ if (!log->data)
+ {
+ size_t ibeg = log->beg, iend = log->end - delsize;
+ if (iend < ibeg || ibeg > sel.beg || iend < sel.beg)
+ {
+ break;
+ }
+ if (ibeg < sel.beg && iend > sel.end)
+ {
+ break;
+ }
+ sel.beg = ibeg, delsize = 0;
+ }
+ else
+ {
+ /* bail if the delete doesnt overlap */
+ if (log->beg != sel.beg)
+ {
+ break;
+ }
+ delsize = strlen(log->data);
+ }
+ }
+ *p_sel = sel;
+ }
+}
+
+void editlog_undo(Buf* buf)
+{
+ require(buf != NULL);
+ log_swap(buf, &(buf->log.undo), &(buf->log.redo));
+}
+
+void editlog_redo(Buf* buf)
+{
+ require(buf != NULL);
+ log_swap(buf, &(buf->log.redo), &(buf->log.undo));
+}
+
+void editlog_add(Buf* buf, size_t beg, size_t end, char* data)
+{
+ Log* prev = buf->log.undo;
+ log_clear(&(buf->log.redo));
+
+ /* check if this is new transaction or the first entry */
+ if (!prev || (buf->log.transid > 0 && buf->log.transid != prev->transid))
+ {
+ buf->log.undo = mklog(buf, beg, end, data, prev);
+ }
+ /* check if this is a sequential insert, just expand the previous one */
+ else if (!data && !prev->data && prev->end == beg)
+ {
+ prev->end = end;
+ }
+ /* check if this is a sequential delete, append to deleted text */
+ else if (prev->data && data && prev->beg == beg)
+ {
+ char* newdata = strmcat(prev->data, data, 0);
+ free(data);
+ free(prev->data);
+ prev->data = newdata;
+ }
+ /* check if this is a delete before the previous operation, prepend to deleted text */
+ else if (prev->data && data && prev->beg == beg+1)
+ {
+ char* newdata = strmcat(data, prev->data, 0);
+ free(data);
+ free(prev->data);
+ prev->data = newdata;
+ prev->end = --prev->beg;
+ }
+ /* otherwise, make a fresh delete operation */
+ else
+ {
+ buf->log.undo = mklog(buf, beg, end, data, prev);
+ }
+}
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+#include "dbc.h"
+
+#include "tide.h"
+#include "config.h"
+
+static Tag* Builtins = NULL;
+
+void exec_init(Tag* p_tags)
+{
+ Builtins = p_tags;
+ /* setup the shell */
+ if (!ShellCmd[0]) ShellCmd[0] = getenv("SHELL");
+ if (!ShellCmd[0]) ShellCmd[0] = "/bin/sh";
+ require(ShellCmd[0]);
+}
+
+static Tag* tag_lookup(char* cmd)
+{
+ size_t len = 0;
+ Tag* tags = Builtins;
+
+ for (char* tag = cmd; *tag && !isspace(*tag); tag++, len++)
+ {
+ /* do nothing */
+ }
+
+ while (tags->tag)
+ {
+ if (!strncmp(tags->tag, cmd, len))
+ break;
+ tags++;
+ }
+ return (tags->tag ? tags : NULL);
+}
+
+static void shell_exec(char* cmd)
+{
+ /* parse the command sigils */
+ char op = '\0', **execcmd = NULL;
+ if (rissigil(*cmd)) op = *(cmd++);
+ execcmd = (op == ':' ? SedCmd : ShellCmd);
+ execcmd[2] = cmd;
+
+ /* get the selection that the command will operate on */
+ if (op && op != '<' && op != '!' && op != '&' && !view_selsize(win_view(EDIT)))
+ {
+ view_selectall(win_view(EDIT));
+ }
+ char* input = view_getstr(win_view(EDIT));
+ size_t len = (input ? strlen(input) : 0);
+ View *tags = win_view(TAGS), *edit = win_view(EDIT), *curr = win_view(FOCUSED);
+
+ /* execute the job */
+ if (op == '!' || op == '&')
+ {
+ free(input);
+ if (op == '&')
+ {
+ xpty_run(win_view(EDIT), execcmd);
+ }
+ else
+ {
+ job_start(execcmd, NULL, 0, NULL);
+ }
+ }
+ else if (op == '>')
+ {
+ job_start(execcmd, input, len, tags);
+ }
+ else if (op == '|' || op == ':')
+ {
+ job_start(execcmd, input, len, edit);
+ }
+ else
+ {
+ job_start(execcmd, input, len, (op != '<' ? curr : edit));
+ }
+}
+
+void exec_cmd(char* str)
+{
+ if (str && *str)
+ {
+ bool shellcmd = (str[0] == ':' && str[1] == ';');
+ if (xpty_active() && (!rissigil(*str) || shellcmd))
+ {
+ xpty_send(str);
+ }
+ else
+ {
+ shell_exec(str);
+ }
+ }
+}
+
+void exec_cmdwarg(char* cmd, char* arg)
+{
+ /* skip leading space */
+ for (; *cmd && isspace(*cmd); cmd++);
+ if (!*cmd) return;
+ /* see if it matches a builtin tag */
+ Tag* tag = tag_lookup(cmd);
+ if (tag)
+ {
+ for (; *cmd && !isspace(*cmd); cmd++); /* strip off tag name */
+ for (; *cmd && isspace(*cmd); cmd++); /* strip off leading space */
+ arg = (*cmd ? strdup(cmd) : arg);
+ tag->action(!arg || !*arg ? NULL : arg);
+ }
+ else if (arg)
+ {
+ cmd = (arg ? strmcat(cmd, " '", arg, "'", 0) : strmcat(cmd));
+ exec_cmd(cmd);
+ free(cmd);
+ }
+ else
+ {
+ exec_cmd(cmd);
+ }
+}
+
+void exec_rawwarg(char* cmd, char* arg)
+{
+ cmd = (arg ? strmcat(cmd, " '", arg, "'", 0) : strmcat(cmd));
+ shell_exec(cmd);
+ free(cmd);
+}
--- /dev/null
+#include <stdc.h>
+#include "dbc.h"
+#include "utf.h"
+#include "io.h"
+#include <ctype.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <vec.h>
+
+#include "tide.h"
+#include "config.h"
+
+size_t gapbuf_end(GapBuf* buf)
+{
+ require(buf != NULL);
+ size_t bufsz = buf->bufend - buf->bufstart;
+ size_t gapsz = buf->gapend - buf->gapstart;
+ return (bufsz - gapsz);
+}
+
+static size_t pagealign(size_t sz)
+{
+ size_t pgsize = sysconf(_SC_PAGE_SIZE);
+ size_t alignmask = (pgsize - 1);
+ if (sz & alignmask)
+ {
+ sz += pgsize - (sz & alignmask);
+ }
+ return sz;
+}
+
+static void resize(GapBuf* buf, size_t sz)
+{
+ /* allocate the new buffer and gap */
+ GapBuf copy = *buf;
+ copy.bufsize = sz;
+ copy.bufstart = (char*)malloc(copy.bufsize);
+ copy.bufend = copy.bufstart + copy.bufsize;
+ copy.gapstart = copy.bufstart;
+ copy.gapend = copy.bufend;
+
+ /* copy the data from the old buffer to the new one */
+ for (char* curr = buf->bufstart; curr < buf->gapstart; curr++)
+ {
+ *(copy.gapstart++) = *(curr);
+ }
+ for (char* curr = buf->gapend; curr < buf->bufend; curr++)
+ {
+ *(copy.gapstart++) = *(curr);
+ }
+
+ /* free the buffer and commit the changes */
+ free(buf->bufstart);
+ memcpy(buf, ©, sizeof(GapBuf));
+}
+
+static void syncgap(GapBuf* buf, size_t off)
+{
+ assert(off <= gapbuf_end(buf));
+ /* If the buffer is full, resize it before syncing */
+ if (0 == (buf->gapend - buf->gapstart))
+ {
+ resize(buf, buf->bufsize << 1);
+ }
+
+ /* Move the gap to the desired offset */
+ char* newpos = (buf->bufstart + off);
+ if (newpos < buf->gapstart)
+ {
+ while (newpos < buf->gapstart)
+ {
+ *(--buf->gapend) = *(--buf->gapstart);
+ }
+ }
+ else
+ {
+ while (newpos > buf->gapstart)
+ {
+ *(buf->gapstart++) = *(buf->gapend++);
+ }
+ }
+}
+
+static int cmpnames(const void* a, const void* b)
+{
+ char *sa = *((char**)a), *sb = *((char**)b);
+ return strcmp(sa, sb);
+}
+
+static void loaddir(GapBuf* buf, char* path, int fd)
+{
+ Sel sel = { 0 };
+ vec_t entries;
+ vec_init(&entries, sizeof(char*));
+ DIR* dir = fdopendir(fd);
+ struct dirent* entry = NULL;
+ struct stat attrs = {0};
+ while ( (entry = readdir(dir)) )
+ {
+ char* epath = strmcat(path, "/", entry->d_name, 0);
+ memset(&attrs, 0, sizeof(attrs));
+ stat(epath, &attrs);
+ char* ename = strmcat(entry->d_name, (S_ISDIR(attrs.st_mode) ? "/" : 0), 0);
+ vec_push_back(&entries, &ename);
+ free(epath);
+ }
+ vec_sort(&entries, cmpnames);
+ for (size_t i = 0; i < vec_size(&entries); i++)
+ {
+ char* name = *((char**)vec_at(&entries, i));
+ for (int i = 0; name[i]; i++)
+ {
+ gapbuf_putb(buf, name[i], &sel);
+ }
+ gapbuf_putb(buf, '\n', &sel);
+ free(name);
+ }
+ free(entries.elem_buffer);
+ int res = chdir(path);
+ (void)res;
+}
+
+void gapbuf_init(GapBuf* buf)
+{
+ require(buf != NULL);
+ buf->bufsize = 8192;
+ buf->bufstart = malloc(buf->bufsize);
+ buf->bufend = buf->bufstart + buf->bufsize;
+ buf->gapstart = buf->bufstart;
+ buf->gapend = buf->bufend;
+}
+
+long gapbuf_save(GapBuf* buf, char* path)
+{
+ require(buf != NULL);
+ long fd;
+ long nwrite = 0;
+ if (path && (fd = open(path, O_WRONLY|O_CREAT|O_TRUNC, 0644)) >= 0)
+ {
+ nwrite = writefd(fd, buf->bufstart, (buf->gapstart - buf->bufstart));
+ if (nwrite >= 0)
+ {
+ nwrite = writefd(fd, buf->gapend, (buf->bufend - buf->gapend));
+ }
+ close(fd);
+ }
+ else
+ {
+ nwrite = -1;
+ }
+ return nwrite;
+}
+
+void gapbuf_load(GapBuf* buf, char* path)
+{
+ require(buf != NULL);
+ require(path != NULL);
+ /* load the contents from the file */
+ int fd;
+ struct stat sb = {0};
+ if (((fd = open(path, O_RDONLY, 0)) >= 0) && (fstat(fd, &sb) >= 0) && (sb.st_size > 0))
+ {
+ /* allocate the buffer in advance */
+ free(buf->bufstart);
+ buf->bufsize = pagealign(sb.st_size);
+ buf->bufstart = malloc(buf->bufsize);
+ buf->bufend = buf->bufstart + buf->bufsize;
+ buf->gapstart = buf->bufstart;
+ buf->gapend = buf->bufend;
+
+ if (S_ISDIR(sb.st_mode))
+ {
+ loaddir(buf, path, fd);
+ }
+ else
+ {
+ buf->gapstart += sb.st_size;
+ (void)readfd(fd, buf->bufstart, sb.st_size);
+ }
+ }
+ if (fd > 0)
+ {
+ close(fd);
+ }
+}
+
+char gapbuf_getb(GapBuf* buf, size_t off)
+{
+ require(buf != NULL);
+ int c = '\n'; // TODO: get rid of this hack
+ if (off < gapbuf_end(buf))
+ {
+ size_t bsz = (buf->gapstart - buf->bufstart);
+ if (off < bsz)
+ {
+ c = *(buf->bufstart + off);
+ }
+ else
+ {
+ c = *(buf->gapend + (off - bsz));
+ }
+ }
+ return c;
+}
+
+void gapbuf_putb(GapBuf* buf, char b, Sel* p_sel)
+{
+ require(buf != NULL);
+ require(p_sel != NULL);
+ syncgap(buf, p_sel->end);
+ *(buf->gapstart++) = b;
+ p_sel->end = p_sel->end + 1u;
+ p_sel->beg = p_sel->end;
+}
+
+void gapbuf_del(GapBuf* buf, size_t off, size_t len)
+{
+ require(buf != NULL);
+ syncgap(buf, off);
+ buf->gapend += len;
+}
--- /dev/null
+/**
+ @file
+ Helper functions for reading and writing file descriptors as well as outputting telemetry data.
+*/
+void telem_send(char* fmt, ...);
+long writefd(int fd, char* data, long towrite);
+long readfd(int fd, char* data, long toread);
+char* readfile(char* path);
+char* abspath(char* path);
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+#include "io.h"
+#include <unistd.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <poll.h>
+#include <fcntl.h>
+
+#include "tide.h"
+
+struct PipeData {
+ char* data;
+ ssize_t ndata;
+ size_t nwrite;
+ View* dest;
+};
+
+#define MAX_JOBS 256
+static struct pollfd JobFds[MAX_JOBS];
+static Job* JobList = NULL;
+
+static void pipe_read(Job* job)
+{
+ struct PipeData* pipedata = job->data;
+ char buffer[32769];
+ errno = 0;
+ long nread = read(job->fd, buffer, sizeof(buffer)-1);
+ telem_send("PIPE_READ(fd : %d, ret: %ld)\n", job->fd, nread);
+ if (nread <= 0)
+ {
+ job->readfn = NULL;
+ buf_logstop(&pipedata->dest->buffer);
+ if (view_selsize(pipedata->dest))
+ view_delete(pipedata->dest, RIGHT, false);
+ else
+ view_selprev(pipedata->dest);
+ }
+ else if (nread > 0)
+ {
+ buffer[nread] = '\0';
+ buf_logstart(&pipedata->dest->buffer);
+ view_putraw(pipedata->dest, buffer);
+ }
+}
+
+static void pipe_write(Job* job)
+{
+ struct PipeData* pipedata = job->data;
+ char* chunk = pipedata->data + pipedata->nwrite;
+ errno = 0;
+ long nwrite = write(job->fd, chunk, pipedata->ndata);
+ if (nwrite >= 0)
+ {
+ pipedata->ndata -= nwrite;
+ pipedata->nwrite += nwrite;
+ }
+ if ((nwrite < 0 && errno != EWOULDBLOCK) || pipedata->ndata <= 0)
+ {
+ free(pipedata->data);
+ pipedata->data = NULL;
+ job->writefn = NULL;
+ shutdown(job->fd, SHUT_WR);
+ }
+}
+
+static Job* job_remove(Job* list, Job* job)
+{
+ Job* ret = NULL;
+ if (list == job)
+ {
+ ret = job->next;
+ }
+ else
+ {
+ list->next = job_remove(list->next, job);
+ ret = list;
+ }
+ return ret;
+}
+
+static void job_finish(Job* job)
+{
+ JobList = job_remove(JobList, job);
+ close(job->fd);
+ free(job->data);
+ free(job);
+}
+
+static void job_process(int fd, int events)
+{
+ Job* job = JobList; // Get job by fd
+ while (job && job->fd != fd)
+ job = job->next;
+ if (!job || !events) return;
+ telem_send("JOB(fd: %d, events: 0x%x)\n", fd, events);
+ if (job->readfn && (events & (POLLIN|POLLHUP)))
+ {
+ telem_send("JOB_READ(fd: %d)\n", job->fd);
+ job->readfn(job);
+ }
+ if (job->writefn && (events & POLLOUT))
+ {
+ telem_send("JOB_WRITE(fd: %d)\n", job->fd);
+ job->writefn(job);
+ }
+ if ((events & POLLERR) || (!job->readfn && !job->writefn))
+ {
+ telem_send("JOB_FINISH(fd: %d)\n", job->fd);
+ job_finish(job);
+ }
+}
+
+static int job_exec(char** cmd, int* p_pid)
+{
+ int pid, fds[2] = {-1,-1};
+ /* create the sockets */
+ if (!socketpair(AF_UNIX, SOCK_STREAM, 0, fds))
+ {
+ /* create the process */
+ if ((pid = fork()) < 0)
+ {
+ close(fds[0]), close(fds[1]), fds[0] = -1;
+ }
+ else if (0 == pid)
+ {
+ /* redirect child process's io to the pipes */
+ if ((dup2(fds[1], 0) < 0) || (dup2(fds[1], 1) < 0) || (dup2(fds[1], 2) < 0))
+ {
+ perror("failed to pipe");
+ exit(1);
+ }
+ /* execute the process */
+ close(fds[0]);
+ exit(execvp(cmd[0], cmd));
+ }
+ else
+ {
+ close(fds[1]);
+ fcntl(fds[0], F_SETFL, fcntl(fds[0], F_GETFL, 0) | O_NONBLOCK);
+ }
+ if (p_pid) *p_pid = pid;
+ }
+ return fds[0];
+}
+
+Job* job_list(void)
+{
+ return JobList;
+}
+
+void job_kill(Job* job)
+{
+ job->readfn = NULL;
+ job->writefn = NULL;
+}
+
+bool job_poll(int ms)
+{
+ int njobs = 0;
+ /* Add jobs from the job list */
+ for (Job *job = JobList; job && njobs < MAX_JOBS; job = job->next)
+ {
+ JobFds[njobs].fd = job->fd;
+ JobFds[njobs].events = 0;
+ JobFds[njobs].revents = 0;
+ if (job->readfn) JobFds[njobs].events |= POLLIN;
+ if (job->writefn) JobFds[njobs].events |= POLLOUT;
+ if (JobFds[njobs].events) njobs++;
+ }
+
+ /* Poll until a job is ready, call the functions based on events */
+ long ret = poll(JobFds, njobs, ms);
+ if (ret != 0)
+ {
+ telem_send("POLL(njobs: %d, ms: %d, ret: %d)\n", njobs, ms, ret);
+ }
+
+ /* process all jobs with events reported */
+ for (int i = 0; i < njobs; i++)
+ {
+ job_process(JobFds[i].fd, JobFds[i].revents);
+ }
+
+ /* reap zombie processes */
+ for (int status; waitpid(-1, &status, WNOHANG) > 0;);
+ return (ret > 0);
+}
+
+void job_spawn(int fd, jobfn_t readfn, jobfn_t writefn, void* data)
+{
+ Job *job = calloc(1, sizeof(Job));
+ job->fd = fd;
+ job->readfn = readfn;
+ job->writefn = writefn;
+ job->data = data;
+ job->next = JobList;
+ JobList = job;
+}
+
+void job_start(char** cmd, char* data, size_t ndata, View* dest)
+{
+ int fd = job_exec(cmd, 0);
+ if (fd >= 0 && (data || dest))
+ {
+ struct PipeData* pipedata = NULL;
+ if (data)
+ {
+ pipedata = calloc(1, sizeof(struct PipeData));
+ pipedata->data = data;
+ pipedata->ndata = ndata;
+ pipedata->dest = dest;
+ }
+ job_spawn(fd, (data ? pipe_read : NULL), (dest ? pipe_write : NULL), pipedata);
+ }
+ else
+ {
+ close(fd);
+ }
+}
+
+int job_run(char** cmd)
+{
+ int pid = -1, status = 0;
+ job_exec(cmd, &pid);
+ do
+ {
+ waitpid(pid, &status, WUNTRACED|WCONTINUED);
+ } while (!WIFEXITED(status) && !WIFSIGNALED(status));
+ return WEXITSTATUS(status);
+}
+
+void job_readfd(int fd, View* view)
+{
+ struct PipeData* pipedata = calloc(1, sizeof(struct PipeData));
+ pipedata->dest = view;
+ job_spawn(fd, pipe_read, NULL, pipedata);
+}
--- /dev/null
+#include <stdc.h>
+#include "dbc.h"
+#include "utf.h"
+#include "io.h"
+#include <locale.h>
+#include <sys/wait.h>
+
+#include "tide.h"
+
+#define INCLUDE_DEFS
+#include "config.h"
+
+/* predeclare some things */
+void cut(char* arg);
+void paste(char* arg);
+
+char* ARGV0;
+Tag* Builtins;
+static KeyBinding* Bindings;
+static WinRegion Focused = EDIT;
+static View Regions[NREGIONS];
+static int Divider;
+static int FontSel;
+static bool SyncMouse = false;
+static int SearchDir = DOWN;
+static char* SearchTerm = NULL;
+
+static int PRESSED(int mods, int btn)
+{
+ return ((mods & (1 << (btn + 7))) == (1 << (btn + 7)));
+}
+
+/* Crash Dump Handling
+ ******************************************************************************/
+#ifndef NDEBUG
+static void dumpdata(FILE* f)
+{
+ fprintf(f, "Focused:\t%d\n", Focused);
+ fprintf(f, "Divider:\t%d\n", Divider);
+ fprintf(f, "FontSel:\t%d\n", FontSel);
+ fprintf(f, "SyncMouse:\t%d\n", SyncMouse);
+ fprintf(f, "SearchDir:\t%d\n", SearchDir);
+ fprintf(f, "SearchTerm:\t'%s'\n", SearchTerm);
+ for (int i = 0; i < NREGIONS; i++)
+ {
+ fprintf(f, "Region[%d]:\n", i);
+ fprintf(f, "\t.sync_flags:\t%d\n", Regions[i].sync_flags);
+ fprintf(f, "\t.index:\t\t%zu\n", Regions[i].index);
+ fprintf(f, "\t.width:\t\t%zu\n", Regions[i].width);
+ fprintf(f, "\t.nvisible:\t%zu\n", Regions[i].nvisible);
+ fprintf(f, "\t.nrows:\t\t%zu\n", Regions[i].nrows);
+ fprintf(f, "\t.rows:\t\t%p\n", (void*)Regions[i].rows);
+ fprintf(f, "\t.buffer:\n");
+ fprintf(f, "\t\t.status:\t%d\n", Regions[i].buffer.status);
+ fprintf(f, "\t\t.bufsize:\t%zu\n", Regions[i].buffer.contents.bufsize);
+ fprintf(f, "\t\t.bufstart:\t%p\n", (void*)Regions[i].buffer.contents.bufstart);
+ fprintf(f, "\t\t.bufend:\t%p\n", (void*)Regions[i].buffer.contents.bufend);
+ fprintf(f, "\t\t.gapstart:\t%p\n", (void*)Regions[i].buffer.contents.gapstart);
+ fprintf(f, "\t\t.gapend:\t%p\n", (void*)Regions[i].buffer.contents.gapend);
+ fprintf(f, "\t\t.undo:\t\t%p\n", (void*)Regions[i].buffer.log.undo);
+ fprintf(f, "\t\t.redo:\t\t%p\n", (void*)Regions[i].buffer.log.redo);
+ fprintf(f, "\t\t.save:\t\t%p\n", (void*)Regions[i].buffer.log.save);
+ fprintf(f, "\t\t.transid:\t%d\n", Regions[i].buffer.log.transid);
+ fprintf(f, "\t\t.selbeg:\t%zu\n", Regions[i].buffer.selection.beg);
+ fprintf(f, "\t\t.selend:\t%zu\n", Regions[i].buffer.selection.end);
+ fprintf(f, "\t\t.selcol:\t%zu\n", Regions[i].buffer.selection.col);
+ }
+}
+#endif
+
+/* X11 Window Code
+ ******************************************************************************/
+static void font_load(char* name)
+{
+ XftFont* font = x11_font_load(&X, name);
+ X.font = (font ? font : X.font); // Update if we found a new font
+}
+
+static void get_position(WinRegion id, int x, int y, size_t* row, size_t* col)
+{
+ int starty = (id == EDIT ? Divider+3 : 0);
+ int startx = ScrollWidth + 3 + Margin;
+ int maxy = (id == EDIT
+ ? (Divider + (int)(win_view(EDIT)->nrows * X.font->height))
+ : Divider - 4
+ );
+ x = (x < 0 ? 0 : (x > X.width ? X.width : x));
+ y = (y < starty ? starty : (y > maxy ? maxy : y));
+ *row = (y - starty) / X.font->height;
+ *col = (startx <= x ? x - startx : 0);
+}
+
+static void tide_send(char* type)
+{
+ XEvent ev;
+ memset(&ev, 0, sizeof (ev));
+ Atom xa_registrar = XInternAtom(X.display, "TIDE_REGISTRAR", 0);
+ Window regwin = XGetSelectionOwner(X.display, xa_registrar);
+ if (None != regwin)
+ {
+ ev.xclient.type = ClientMessage;
+ ev.xclient.window = X.self;
+ ev.xclient.message_type = xa_registrar;
+ ev.xclient.format = 32;
+ ev.xclient.data.l[0] = XInternAtom(X.display, type, 0);
+ XSendEvent(X.display, regwin, False, NoEventMask, &ev);
+ XFlush(X.display);
+ }
+}
+
+size_t glyph_width(View* view, int c)
+{
+ size_t ret;
+ FcChar32 rune = (FcChar32)c;
+ XGlyphInfo extents;
+ XftFont* font = (&Regions[TAGS] == view ? X.tagfont : X.font);
+ XftTextExtents32(X.display, font, &rune, 1, &extents);
+ if (c == '\t')
+ {
+ ret = (TabWidth * extents.xOff);
+ }
+ else
+ {
+ ret = extents.xOff;
+ }
+ return ret;
+}
+
+static void xkeypress(XConf* x, XEvent* e)
+{
+ Focused = (e->xkey.y <= Divider ? TAGS : EDIT);
+ uint32_t key = x11_process_key(x, e, Bindings);
+ telem_send("KEY(reg: %d, key: 0x%x)\n", Focused, key);
+ if (key != RUNE_ERR)
+ {
+ view_insert(win_view(FOCUSED), key);
+ }
+}
+
+static void xmousebtn(XConf* x, XEvent* e)
+{
+ (void)x;
+ size_t row, col;
+ Focused = (e->xbutton.y <= Divider ? TAGS : EDIT);
+ get_position(Focused, e->xbutton.x, e->xbutton.y, &row, &col);
+ int action = process_mouse(e->xbutton.button, (e->type == ButtonPress));
+ telem_send("BTNPRESS(reg: %d, btn: %d, press: %d, act: %d)\n",
+ Focused, e->xbutton.button, (e->type == ButtonPress), action);
+ switch (action)
+ {
+ case MouseActNone:
+ break;
+ case MouseActSel:
+ view_setcursor(win_view(Focused), row, col, win_keymodsset(ModShift));
+ break;
+ case MouseActSelCtx:
+ view_select(win_view(Focused), row, col);
+ break;
+ case MouseActSelWord:
+ view_selword(win_view(Focused), row, col);
+ break;
+ case MouseActCut:
+ cut(NULL);
+ break;
+ case MouseActPaste:
+ paste(NULL);
+ break;
+ case MouseActExec:
+ {
+ char* str = view_fetch(win_view(Focused), row, col, riscmd);
+ exec_cmdwarg(str, NULL);
+ free(str);
+ break;
+ }
+ case MouseActExecArg:
+ {
+ /* if we didnt get an arg, find one in the selection */
+ char* arg = NULL;
+ if (!arg || !*arg) arg = view_getstr(win_view(EDIT));
+ if (!arg || !*arg) arg = view_getstr(win_view(TAGS));
+ char* str = view_fetch(win_view(Focused), row, col, riscmd);
+ if (str) exec_cmdwarg(str, arg);
+ free(str);
+ free(arg);
+ break;
+ }
+ case MouseActFetch:
+ {
+ FetchCmd[1] = view_fetch(win_view(Focused), row, col, risfile);
+ if (job_run(FetchCmd) != 0)
+ {
+ SearchDir *= (win_keymodsset(ModShift) ? -1 : +1);
+ free(SearchTerm);
+ SearchTerm = view_fetch(win_view(Focused), row, col, risfile);
+ view_findstr(win_view(EDIT), SearchDir, SearchTerm);
+ SyncMouse = true;
+ }
+ free(FetchCmd[1]);
+ break;
+ }
+ case MouseActScrollUp:
+ view_scroll(win_view(Focused), -ScrollBy);
+ break;
+ case MouseActScrollDn:
+ view_scroll(win_view(Focused), +ScrollBy);
+ break;
+ }
+}
+
+static void xbtnmotion(XConf* x, XEvent* e)
+{
+ XMotionEvent *ev = &e->xmotion;
+ while (XCheckTypedWindowEvent(x->display, ev->window, ev->type, e));
+ size_t row, col;
+ int xpos = ev->x, ypos = ev->y;
+ get_position(Focused, xpos, ypos, &row, &col);
+ telem_send("BTNMOVE(reg: %d, btn: 0x%x, x: %d, y: %d, r: %d, c: %d)\n",
+ Focused, ev->state, xpos, ypos, row, col);
+ if (PRESSED(ev->state, MouseLeft))
+ view_setcursor(win_view(Focused), row, col, true);
+}
+
+static void xclientmsg(XConf* x, XEvent* e)
+{
+ if ((Atom)(e->xclient.data.l[0]) == XInternAtom(x->display, "WM_DELETE_WINDOW", False))
+ {
+ win_quit();
+ }
+ else if (e->xclient.message_type == XInternAtom(x->display, "GOTO", False))
+ {
+ x11_seturgent(x, 1);
+ win_setln(e->xclient.data.l[0]);
+ }
+}
+
+void xresize(XConf* x, XEvent* e)
+{
+ if (e->xconfigure.width != x->width || e->xconfigure.height != x->height)
+ {
+ view_sync(win_view(EDIT));
+ }
+ x11_resize(x, e);
+}
+
+static void xredraw(XConf* x)
+{
+ /* force update the title */
+ win_title(NULL);
+
+ /* determine draw height such that we can draw both regions */
+ int height = x->tagfont->height * 2 + 7;
+ if (height < x->height) height = x->height;
+
+ /* determine the size of the regions */
+ size_t maxtagrows = ((height/4) / x->tagfont->height);
+ size_t tagrows = view_limitrows(win_view(TAGS), maxtagrows);
+ size_t tagregsz = (tagrows * x->tagfont->height) + 7;
+ size_t editrows = (height - tagregsz) / x->font->height ;
+ telem_send("REDRAW(tagrows: %d, editrows: %d)\n", tagrows, editrows);
+
+ /* draw the regions to the window */
+ int olddiv = Divider;
+ drawcsr csr = { .w = x->width, .h = x->height };
+ csr.x += ScrollWidth + 1;
+ draw_statbox(x, win_view(EDIT)->buffer.status);
+ draw_view(x, &Regions[TAGS], x->tagfont, tagrows, &csr, TagsBg, TagsFg, TagsSel, false);
+ Divider = draw_hrule(x, &csr);
+ draw_view(x, &Regions[EDIT], x->font, editrows, &csr, EditBg, EditFg, EditSel, SyncMouse);
+ draw_scroll(x, &csr, win_view(EDIT), Divider);
+ XCopyArea(x->display, x->pixmap, x->self, x->gc, 0, 0, x->width, x->height, 0, 0);
+ SyncMouse = false;
+ if (Divider < olddiv && Focused == TAGS)
+ {
+ int ptrx = 0, ptry = 0;
+ x11_getptr(x, &ptrx, &ptry);
+ XWarpPointer(X.display, X.self, X.self, 0, 0, X.width, X.height, ptrx, Divider-2);
+ }
+ XFlush(x->display);
+}
+
+static void xupdate(Job* job)
+{
+ /* redraw if we have changes or if we have input from a job */
+ x11_process_events(&X);
+ if (!job && X.state == RUNNING)
+ {
+ xredraw(&X);
+ }
+}
+
+void win_init(void)
+{
+ signal(SIGPIPE, SIG_IGN); // Ignore the SIGPIPE signal
+ setlocale(LC_CTYPE, "");
+ XSetLocaleModifiers("");
+
+ /* open the X display and get basic attributes */
+ x11_init(&X);
+ font_load(Fonts[FontSel = 0]);
+ X.tagfont = X.font;
+ if (!X.font)
+ {
+ perror("unable to load base font");
+ exit(EXIT_FAILURE);
+ }
+ x11_mkwin(&X, 640, 480, 0
+ | KeyPressMask
+ | ButtonPressMask
+ | ButtonReleaseMask
+ | ButtonMotionMask
+ | PropertyChangeMask
+ );
+ x11_init_gc(&X);
+ x11_sel_init(&X);
+ /* register event handlers */
+ X.eventfns[KeyPress] = xkeypress;
+ X.eventfns[ButtonPress] = xmousebtn;
+ X.eventfns[ButtonRelease] = xmousebtn;
+ X.eventfns[MotionNotify] = xbtnmotion;
+ X.eventfns[ClientMessage] = xclientmsg;
+ X.eventfns[ConfigureNotify] = xresize;
+}
+
+void win_title(char* path)
+{
+ static char prevtitle[4096] = {0};
+ char title[4096] = {0};
+ if (!path) path = win_view(EDIT)->buffer.path;
+ if (!path) path = "*scratch*";
+ snprintf(title, sizeof(title)-1, "[%c%c] %s",
+ (DosLineFeed ? 'C' : 'N'),
+ (ExpandTabs ? 'S' : 'T'),
+ path);
+ if (strcmp(prevtitle, title))
+ XStoreName(X.display, X.self, title);
+ memcpy(prevtitle, title, sizeof(title));
+}
+
+void win_font(char* font)
+{
+ font_load(font ? font : Fonts[++FontSel % nelem(Fonts)]);
+}
+
+void win_prop_set(char* xname, char* ename, char* value)
+{
+ if (!value) return;
+ Atom propname = XInternAtom(X.display, xname, 0);
+ XChangeProperty(X.display, X.self, propname, XA_STRING, 8, PropModeReplace,
+ (const unsigned char *)value, strlen(value));
+ if (ename) setenv(ename, value, 1);
+}
+
+void win_loop(void)
+{
+ tide_send("ADD");
+ job_spawn(ConnectionNumber(X.display), xupdate, 0, 0);
+ XSync(X.display, False);
+ int maxcount = 1000 / Timeout;
+ int count = 0;
+ while (X.state != QUITTING)
+ {
+ bool ready = job_poll(Timeout);
+ count += (ready ? -count : 1);
+ if (count < maxcount)
+ {
+ xupdate(NULL);
+ }
+ }
+}
+
+void win_quit(void)
+{
+ static uint64_t before = 0;
+ if ((win_buf(EDIT)->status != MODIFIED) || (X.now - before) <= (uint64_t)ClickTime)
+ {
+ tide_send("DEL");
+ XWithdrawWindow(X.display, X.self, X.screen);
+ X.state = QUITTING;
+ if (x11_sel_ready(&X))
+ {
+ X.state = SERVE_SEL;
+ x11_sel_serve(&X);
+ }
+ }
+ before = X.now;
+}
+
+void win_togglefocus(void)
+{
+ int ypos = (Focused == EDIT ? Divider/2 : (X.height - ((X.height-Divider) / 2)));
+ XWarpPointer(X.display, X.self, X.self, 0, 0, X.width, X.height, X.width/2, ypos);
+}
+
+View* win_view(WinRegion id)
+{
+ return &(Regions[id == FOCUSED ? Focused : id]);
+}
+
+Buf* win_buf(WinRegion id)
+{
+ return &(Regions[id == FOCUSED ? Focused : id].buffer);
+}
+
+bool win_keymodsset(int mask)
+{
+ return ((X.mods & mask) == mask);
+}
+
+void win_setln(int line_num)
+{
+ view_setln(win_view(EDIT), line_num);
+ SyncMouse = true;
+}
+
+/* Keyboard and Tag Handlers
+ ******************************************************************************/
+static void change_focus(char* arg)
+{
+ (void)arg;
+ win_togglefocus();
+}
+
+static void quit(char* arg)
+{
+ (void)arg;
+ win_quit();
+}
+
+static void put(char* arg)
+{
+ Buf* buf = win_buf(EDIT);
+ if (buf_save(buf, arg) == NORMAL)
+ {
+ /* convert saved path to absolute path */
+ char* path = abspath(buf->path);
+ buf_setpath(buf, path);
+ free(path);
+ }
+ char* path = (buf->path ? buf->path : "*scratch*");
+ win_title(path);
+ win_prop_set("FILE", "file", path);
+}
+
+static void get(char* arg)
+{
+ if (arg)
+ view_init(win_view(EDIT), arg);
+ else
+ view_reload(win_view(EDIT));
+}
+
+static void tag_undo(char* arg)
+{
+ (void)arg;
+ view_undo(win_view(EDIT));
+}
+
+static void tag_redo(char* arg)
+{
+ (void)arg;
+ view_redo(win_view(EDIT));
+}
+
+static void search(char* arg)
+{
+ (void)arg;
+ char* str;
+ SearchDir *= (win_keymodsset(ModShift) ? UP : DOWN);
+ if (win_keymodsset(ModAlt) && SearchTerm)
+ str = strdup(SearchTerm);
+ else
+ str = view_getctx(win_view(FOCUSED));
+ SyncMouse = view_findstr(win_view(EDIT), SearchDir, str);
+ free(SearchTerm);
+ SearchTerm = str;
+}
+
+static void execute(char* arg)
+{
+ (void)arg;
+ char* str = view_getcmd(win_view(FOCUSED));
+ exec_cmdwarg(str, NULL);
+ free(str);
+}
+
+static void find(char* arg)
+{
+ SearchDir *= (win_keymodsset(ModShift) ? UP : DOWN);
+ view_findstr(win_view(EDIT), SearchDir, arg);
+}
+
+static void open_file(char* arg)
+{
+ (void)arg;
+ exec_cmd(CMD_PICKFILE);
+}
+
+static void pick_symbol(char* symbol)
+{
+ exec_rawwarg(CMD_GOTO_TAG, symbol);
+}
+
+static void pick_ctag(char* arg)
+{
+ (void)arg;
+ pick_symbol(NULL);
+}
+
+static void complete(char* arg)
+{
+ (void)arg;
+ View* view = win_view(FOCUSED);
+ view_selectobj(view, risword);
+ exec_rawwarg(CMD_COMPLETE, view_getstr(view));
+}
+
+static void fcomplete(char* arg)
+{
+ (void)arg;
+ View* view = win_view(FOCUSED);
+ view_selectobj(view, risfile);
+ exec_rawwarg(CMD_FCOMPLETE, view_getstr(view));
+}
+
+static void jump_to(char* arg)
+{
+ if (arg)
+ {
+ size_t line = strtoul(arg, NULL, 0);
+ if (line)
+ win_setln(line);
+ else
+ pick_symbol(arg);
+ }
+}
+
+static void goto_ctag(char* arg)
+{
+ (void)arg;
+ char* str = view_getctx(win_view(FOCUSED));
+ jump_to(str);
+ free(str);
+}
+
+static void tabs(char* arg)
+{
+ (void)arg;
+ ExpandTabs = !ExpandTabs;
+}
+
+static void indent(char* arg)
+{
+ (void)arg;
+ CopyIndent = !CopyIndent;
+}
+
+static void eol_mode(char* arg)
+{
+ (void)arg;
+ DosLineFeed = !DosLineFeed;
+ View* view = win_view(EDIT);
+ view_selectall(view);
+ char* txt = view_getstr(view);
+ view_putstr(view, txt);
+ free(txt);
+}
+
+static void new_win(char* arg)
+{
+ (void)arg;
+ exec_cmd(CMD_TIDE);
+}
+
+static void lnexec(char* cmd)
+{
+ select_line(NULL);
+ exec_cmdwarg(cmd, NULL);
+}
+
+static void tag_kill(char* cmd)
+{
+ (void)cmd;
+ Job* job = job_list();
+ if (job && job->fd != ConnectionNumber(X.display))
+ job_kill(job);
+}
+
+static void tag_line(char* cmd)
+{
+ (void)cmd;
+ char buf[256] = {0};
+ size_t lnbeg = 1, lnend = 1;
+ buf_getln(win_buf(EDIT), &lnbeg, &lnend);
+ if (lnbeg == lnend)
+ snprintf(buf, sizeof(buf)-1, "%lu", lnbeg);
+ else
+ snprintf(buf, sizeof(buf)-1, "%lu:%lu", lnbeg, lnend);
+ view_paste(win_view(TAGS), buf);
+}
+
+static void do_scroll(char* arg)
+{
+ (void)arg;
+ xpty_togglescroll();
+}
+
+/* Main Routine
+ ******************************************************************************/
+Tag* Builtins = (Tag[]){
+ { .tag = "Cut", .action = cut },
+ { .tag = "Copy", .action = copy },
+ { .tag = "Del", .action = quit },
+ { .tag = "Eol", .action = eol_mode },
+ { .tag = "Find", .action = find },
+ { .tag = "GoTo", .action = jump_to },
+ { .tag = "Get", .action = get },
+ { .tag = "Indent", .action = indent },
+ { .tag = "New", .action = new_win },
+ { .tag = "Paste", .action = paste },
+ { .tag = "Put", .action = put },
+ { .tag = "Redo", .action = tag_redo },
+ { .tag = "Tabs", .action = tabs },
+ { .tag = "Undo", .action = tag_undo },
+ { .tag = "Font", .action = win_font },
+ { .tag = "Kill", .action = tag_kill },
+ { .tag = "Line", .action = tag_line },
+ { .tag = "Scroll", .action = do_scroll },
+ { .tag = NULL, .action = NULL }
+};
+
+static KeyBinding* Bindings = (KeyBinding[]){
+ /* Cursor Movements */
+ { .mods = ModAny, .key = KEY_HOME, .fn = cursor_home },
+ { .mods = ModAny, .key = KEY_END, .fn = cursor_end },
+ { .mods = ModAny, .key = KEY_UP, .fn = cursor_up },
+ { .mods = ModAny, .key = KEY_DOWN, .fn = cursor_dn },
+ { .mods = ModAny, .key = KEY_LEFT, .fn = cursor_left },
+ { .mods = ModAny, .key = KEY_RIGHT, .fn = cursor_right },
+
+ /* Standard Unix Shortcuts */
+ { .mods = ModCtrl, .key = 'u', .fn = del_to_bol },
+ { .mods = ModCtrl, .key = 'k', .fn = del_to_eol },
+ { .mods = ModCtrl, .key = 'w', .fn = del_to_bow },
+ { .mods = ModCtrl, .key = 'a', .fn = cursor_bol },
+ { .mods = ModCtrl, .key = 'e', .fn = cursor_eol },
+
+ /* Standard Text Editing Shortcuts */
+ { .mods = ModCtrl, .key = 's', .fn = put },
+ { .mods = ModCtrl, .key = 'z', .fn = undo },
+ { .mods = ModCtrl, .key = 'y', .fn = redo },
+ { .mods = ModCtrl, .key = 'x', .fn = cut },
+ { .mods = ModCtrl, .key = 'c', .fn = copy },
+ { .mods = ModCtrl, .key = 'v', .fn = paste },
+ { .mods = ModCtrl, .key = 'j', .fn = join_lines },
+ { .mods = ModCtrl, .key = 'l', .fn = select_line },
+
+ /* Common Special Keys */
+ { .mods = ModNone, .key = KEY_PGUP, .fn = page_up },
+ { .mods = ModNone, .key = KEY_PGDN, .fn = page_dn },
+ { .mods = ModAny, .key = KEY_DELETE, .fn = delete },
+ { .mods = ModAny, .key = KEY_BACKSPACE, .fn = backspace },
+
+ /* External command shortcuts */
+ { .mods = ModCtrl, .key = '[', .fn = lnexec, .arg = "|i-" },
+ { .mods = ModCtrl, .key = ']', .fn = lnexec, .arg = "|i+" },
+ { .mods = ModCtrl, .key = '/', .fn = lnexec, .arg = "|c+" },
+ { .mods = ModCtrl|ModShift, .key = '?', .fn = lnexec, .arg = "|c-" },
+
+ /* Implementation Specific */
+ { .mods = ModNone, .key = KEY_ESCAPE, .fn = select_prev },
+ { .mods = ModCtrl, .key = 't', .fn = change_focus },
+ { .mods = ModCtrl, .key = 'q', .fn = quit },
+ { .mods = ModCtrl, .key = 'h', .fn = highlight },
+ { .mods = ModOneOrMore, .key = 'f', .fn = search },
+ { .mods = ModCtrl, .key = 'd', .fn = execute },
+ { .mods = ModOneOrMore, .key = 'o', .fn = open_file },
+ { .mods = ModCtrl, .key = 'p', .fn = pick_ctag },
+ { .mods = ModOneOrMore, .key = 'g', .fn = goto_ctag },
+ { .mods = ModCtrl, .key = 'n', .fn = new_win },
+ { .mods = ModOneOrMore, .key = '\n', .fn = newline },
+ { .mods = ModCtrl, .key = ' ', .fn = complete },
+ { .mods = ModCtrl|ModShift, .key = ' ', .fn = fcomplete },
+
+ /* xpty commands */
+ { .mods = ModCtrl|ModShift, .key = 'c', .fn = xpty_rawsend, .arg = "\x03" },
+ { .mods = ModCtrl|ModShift, .key = 'd', .fn = xpty_rawsend, .arg = "\x04" },
+ { .mods = ModCtrl|ModShift, .key = 'z', .fn = xpty_rawsend, .arg = "\x1A" },
+
+ { 0, 0, 0, 0 }
+};
+
+#ifndef TEST
+static void usage(void)
+{
+ printf(
+ "Usage: %s [FLAGS] [FILE]\n"
+ "\n -I 0,1 Enable/disable automatic indenting"
+ "\n -W 0,1 Enable/disable trimming whitespace on save"
+ "\n -E 0,1 Enable/disable expanding tabs to spaces"
+ "\n -N 0,1 Enable/disable dos line ending style"
+ "\n -T str String to use for the tags region"
+ "\n -C str Set the shell to use for command execution\n"
+ "\n -c cmd Runs command interactively in the window\n",
+ ARGV0);
+ exit(1);
+}
+
+static void edit_file(char* file, int line_num)
+{
+ file = abspath(file);
+ if (!strcmp("-", file))
+ {
+ job_readfd(STDIN_FILENO, win_view(EDIT));
+ }
+ else
+ {
+ view_init(win_view(EDIT), file);
+ win_setln(line_num);
+ win_title(file);
+ win_prop_set("FILE", "file", file);
+ }
+ free(file);
+}
+
+int main(int argc, char** argv)
+{
+ char* termcmd = NULL;
+ long int line_num = 0;
+ #define BOOLARG() (EOPTARG(usage()), optarg_[0] == '0' ? 0 : 1)
+ #define STRARG() (EOPTARG(usage()))
+ #define NUMARG() (strtoul(EOPTARG(usage()),0,0))
+ OPTBEGIN
+ {
+ case 'I': CopyIndent = BOOLARG(); break;
+ case 'W': TrimOnSave = BOOLARG(); break;
+ case 'E': ExpandTabs = BOOLARG(); break;
+ case 'N': DosLineFeed = BOOLARG(); break;
+ case 'T': TagString = STRARG(); break;
+ case 'S': ShellCmd[0] = STRARG(); break;
+ case 'c': termcmd = STRARG(); break;
+ case 'l': line_num = NUMARG(); break;
+ default: usage(); break;
+ }
+ OPTEND;
+
+ /* Initialize the window and views */
+ exec_init(Builtins);
+ win_init();
+ view_init(&Regions[TAGS], NULL);
+ view_init(&Regions[EDIT], NULL);
+ view_putstr(win_view(TAGS), TagString);
+ view_resize(win_view(TAGS), 640, 1);
+ buf_logclear(win_buf(TAGS));
+ win_prop_set("TIDE", "", "tide");
+ dbc_init(NULL, dumpdata);
+
+ /* if we still have args left we're going to open it in this instance */
+ if (*argv)
+ {
+ edit_file(*argv, line_num);
+ }
+
+ /* set host name property */
+ char buf[8192];
+ if (!gethostname(buf, sizeof(buf)))
+ win_prop_set("HOST", "host", buf);
+
+ /* exit */
+ if (termcmd)
+ {
+ termcmd = strmcat("&", termcmd, 0);
+ exec_cmd(termcmd);
+ free(termcmd);
+ }
+
+ /* now create the window and start the event loop */
+#ifndef TEST
+ x11_show(&X);
+#endif
+ xupdate(NULL);
+ win_loop();
+ return 0;
+}
+#endif
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+#include "dbc.h"
+
+#include "tide.h"
+#include "config.h"
+
+static inline int PRESSED(int mods, int btn)
+{
+ return ((mods & (1 << (btn + 7))) == (1 << (btn + 7)));
+}
+
+static int ExecRequest = 0;
+
+static int mouse_left(bool pressed)
+{
+ static int count = 0;
+ static Time before = 0;
+ int ret = MouseActNone;
+ if (pressed)
+ {
+ count = ((X.now - before) <= (uint64_t)ClickTime ? count+1 : 1);
+ before = X.now;
+ if (PRESSED(X.mods, MouseRight))
+ {
+ ret = MouseActNone;
+ }
+ else if (PRESSED(X.mods, MouseMiddle))
+ {
+ ExecRequest = 0;
+ ret = MouseActExecArg;
+ }
+ else if (count == 1)
+ {
+ ret = MouseActSel;
+ }
+ else if (count == 2)
+ {
+ ret = MouseActSelCtx;
+ }
+ else if (count == 3)
+ {
+ ret = MouseActSelWord;
+ }
+ else
+ {
+ ret = MouseActNone;
+ }
+ }
+ return ret;
+}
+
+static int mouse_middle(bool pressed)
+{
+ int ret;
+ if (pressed)
+ {
+ ExecRequest = 1;
+ ret = MouseActNone;
+ }
+ else if (PRESSED(X.mods, MouseLeft))
+ {
+ ret = MouseActCut;
+ }
+ else if (ExecRequest)
+ {
+ ret = MouseActExec;
+ }
+ else
+ {
+ ret = MouseActNone;
+ }
+ return ret;
+}
+
+static int mouse_right(bool pressed)
+{
+ int ret;
+ if (pressed)
+ {
+ ret = MouseActNone;
+ }
+ else if (PRESSED(X.mods, MouseLeft))
+ {
+ ret = MouseActPaste;
+ }
+ else
+ {
+ ret = MouseActFetch;
+ }
+ return ret;
+}
+
+int process_mouse(int btn, bool pressed)
+{
+ int ret = MouseActNone;
+ switch(btn)
+ {
+ case MouseLeft: ret = mouse_left(pressed); break;
+ case MouseMiddle: ret = mouse_middle(pressed); break;
+ case MouseRight: ret = mouse_right(pressed); break;
+ case MouseWheelUp: ret = (pressed ? MouseActScrollUp : MouseActNone); break;
+ case MouseWheelDn: ret = (pressed ? MouseActScrollDn : MouseActNone); break;
+ }
+ return ret;
+}
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+
+#include "tide.h"
+
+void range_add(Sel* p_range, size_t off)
+{
+ if (off < p_range->beg)
+ {
+ p_range->beg++;
+ }
+ if (off <= p_range->end)
+ {
+ p_range->end++;
+ }
+}
+
+void range_del(Sel* p_range, size_t beg, size_t end)
+{
+ /* adjust the point according to the characters deleted */
+ size_t nbytes = end - beg;
+ size_t bpoint = 0;
+ if (beg <= p_range->beg)
+ {
+ bpoint = min(nbytes, p_range->beg - beg);
+ }
+ size_t inpoint = 0;
+ if (end >= p_range->beg)
+ {
+ inpoint = min(end, p_range->end) - max(beg, p_range->beg);
+ }
+ p_range->beg -= bpoint;
+ p_range->end -= (bpoint + inpoint);
+}
--- /dev/null
+#include <stdc.h>
+#include "io.h"
+
+long readfd(int fd, char* data, long toread)
+{
+ long nread = 0;
+ while (toread && ((nread = read(fd, data, toread)) >= 0))
+ {
+ data += nread;
+ toread -= nread;
+ }
+ return nread;
+}
--- /dev/null
+#include <stdc.h>
+#include "io.h"
+#include <fcntl.h>
+#include <sys/stat.h>
+
+char* readfile(char* path)
+{
+ int fd;
+ char* data = NULL;
+ struct stat sb = {0};
+ if (((fd = open(path, O_RDONLY, 0)) >= 0) && (fstat(fd, &sb) >= 0) && (sb.st_size > 0))
+ {
+ data = malloc(sb.st_size+1);
+ (void)readfd(fd, data, sb.st_size);
+ data[sb.st_size] = '\0';
+ }
+ if (fd > 0)
+ {
+ close(fd);
+ }
+ return data;
+}
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+
+#include "tide.h"
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+
+void select_line(char* arg)
+{
+ buf_selln(win_buf(FOCUSED));
+}
+
+void join_lines(char* arg)
+{
+ View* view = win_view(FOCUSED);
+ buf_logstart(win_buf(FOCUSED));
+ view_eol(view, false);
+ view_delete(view, RIGHT, false);
+ Rune r = view_getrune(view);
+ for (; r == '\t' || r == ' '; r = view_getrune(view))
+ {
+ view_byrune(view, RIGHT, true);
+ }
+ if (r != '\n')
+ {
+ buf_putc(win_buf(FOCUSED), ' ');
+ }
+ buf_logstop(win_buf(FOCUSED));
+}
+
+void delete(char* arg)
+{
+ bool byword = win_keymodsset(ModCtrl);
+ view_delete(win_view(FOCUSED), RIGHT, byword);
+}
+
+static void onpaste(char* text)
+{
+ view_paste(win_view(FOCUSED), text);
+}
+
+void cut(char* arg)
+{
+ View* view = win_view(FOCUSED);
+ /* select the current line if no selection */
+ if (!view_selsize(view))
+ {
+ select_line(arg);
+ }
+ /* now perform the cut */
+ char* str = view_getstr(view);
+ x11_sel_set(&X, CLIPBOARD, str);
+ if (str && *str)
+ {
+ delete(arg);
+ }
+}
+
+void paste(char* arg)
+{
+ int pasted = x11_sel_get(&X, CLIPBOARD, onpaste);
+ assert(pasted);
+ (void)pasted;
+}
+
+void copy(char* arg)
+{
+ /* select the current line if no selection */
+ if (!view_selsize(win_view(FOCUSED)))
+ {
+ select_line(arg);
+ }
+ char* str = view_getstr(win_view(FOCUSED));
+ x11_sel_set(&X, CLIPBOARD, str);
+}
+
+static void del_to(void (*tofn)(View*, bool))
+{
+ tofn(win_view(FOCUSED), true);
+ if (view_selsize(win_view(FOCUSED)) > 0)
+ {
+ delete(NULL);
+ }
+}
+
+void del_to_bol(char* arg)
+{
+ del_to(view_bol);
+}
+
+void del_to_eol(char* arg)
+{
+ del_to(view_eol);
+}
+
+void del_to_bow(char* arg)
+{
+ view_byword(win_view(FOCUSED), LEFT, true);
+ if (view_selsize(win_view(FOCUSED)) > 0)
+ {
+ delete(arg);
+ }
+}
+
+void backspace(char* arg)
+{
+ view_delete(win_view(FOCUSED), LEFT, win_keymodsset(ModCtrl));
+}
+
+void cursor_bol(char* arg)
+{
+ view_bol(win_view(FOCUSED), false);
+}
+
+void cursor_eol(char* arg)
+{
+ view_eol(win_view(FOCUSED), false);
+}
+
+void cursor_mvlr(int dir)
+{
+ bool extsel = win_keymodsset(ModShift);
+ if (win_keymodsset(ModCtrl))
+ {
+ view_byword(win_view(FOCUSED), dir, extsel);
+ }
+ else
+ {
+ view_byrune(win_view(FOCUSED), dir, extsel);
+ }
+}
+
+void cursor_mvupdn(int dir)
+{
+ bool extsel = win_keymodsset(ModShift);
+ view_byline(win_view(FOCUSED), dir, extsel);
+}
+
+static void cursor_home_end(
+ void (*docfn)(View*, bool),
+ void (*linefn)(View*, bool)
+)
+{
+ bool extsel = win_keymodsset(ModShift);
+ if (win_keymodsset(ModCtrl))
+ {
+ docfn(win_view(FOCUSED), extsel);
+ }
+ else
+ {
+ linefn(win_view(FOCUSED), extsel);
+ }
+}
+
+void cursor_home(char* arg)
+{
+ cursor_home_end(view_bof, view_bol);
+}
+
+void cursor_end(char* arg)
+{
+ cursor_home_end(view_eof, view_eol);
+}
+
+void cursor_up(char* arg)
+{
+ cursor_mvupdn(UP);
+}
+
+void cursor_dn(char* arg)
+{
+ cursor_mvupdn(DOWN);
+}
+
+void cursor_left(char* arg)
+{
+ cursor_mvlr(LEFT);
+}
+
+void cursor_right(char* arg)
+{
+ cursor_mvlr(RIGHT);
+}
+
+void page_up(char* arg)
+{
+ view_scrollpage(win_view(FOCUSED), UP);
+}
+
+void page_dn(char* arg)
+{
+ view_scrollpage(win_view(FOCUSED), DOWN);
+}
+
+void select_prev(char* arg)
+{
+ view_selprev(win_view(FOCUSED));
+}
+
+void undo(char* arg)
+{
+ view_undo(win_view(FOCUSED));
+}
+
+void redo(char* arg)
+{
+ view_redo(win_view(FOCUSED));
+}
+
+void newline(char* arg)
+{
+ (void)arg;
+ View* view = win_view(FOCUSED);
+ if (win_keymodsset(ModShift))
+ {
+ view_byline(view, UP, false);
+ view_bol(view, false);
+ }
+ view_eol(view, false);
+ view_insert(view, '\n');
+}
+
+void highlight(char* arg)
+{
+ view_selctx(win_view(FOCUSED));
+}
+
+#pragma GCC diagnostic pop
--- /dev/null
+/**
+ @file
+ @brief Collection of useful C types and functions.
+ @author Michael D. Lowis
+ @license BSD 2-clause License
+*/
+#define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 700
+#define AUTOLIB(n) \
+ int __autolib_##n __attribute__ ((weak));
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+
+static char* strmcat(char* first, ...) {
+ va_list args;
+ /* calculate the length of the final string */
+ size_t len = strlen(first);
+ va_start(args, first);
+ for (char* s = NULL; (s = va_arg(args, char*));)
+ len += strlen(s);
+ va_end(args);
+ /* allocate the final string and copy the args into it */
+ char *str = malloc(len+1), *curr = str;
+ while (first && *first) *(curr++) = *(first++);
+ va_start(args, first);
+ for (char* s = NULL; (s = va_arg(args, char*));)
+ while (s && *s) *(curr++) = *(s++);
+ va_end(args);
+ /* null terminate and return */
+ *curr = '\0';
+ return str;
+}
+
+/* Option Parsing
+ *
+ * This following macros implement a simple POSIX-style option parsing strategy.
+ * They are heavily influenced and inspired by the arg.h file from suckless.org
+ * (http://git.suckless.org/libsl/tree/arg.h). That file is in turn inspired by
+ * the corresponding macros defined in plan9.
+ *
+ * The interface assumes that the main function will have the following
+ * prototype:
+ *
+ * int main(int argc, char** argv);
+ *
+ * An example usage of the interface would look something like the follwoing:
+ *
+ * char* ARGV0;
+ * int main(int argc, char** argv) {
+ * OPTBEGIN {
+ * case 'a': printf("Simple option\n"); break;
+ * case 'b': printf("Option with arg: %s\n", OPTARG()); break;
+ * default: printf("Unknown option!\n");
+ * } OPTEND;
+ * return 0;
+ * }
+ */
+
+/* This variable contains the value of argv[0] so that it can be referenced
+ * again once the option parsing is done. This variable must be defined by the
+ * program.
+ *
+ * NOTE: Ensure that you define this variable with external linkage (i.e. not
+ * static) */
+extern char* ARGV0;
+
+/* This is a helper function used by the following macros to parse the next
+ * option from the command line. */
+static inline char* _getopt_(int* p_argc, char*** p_argv) {
+ if (!(*p_argv)[0][1] && !(*p_argv)[1]) {
+ return (char*)0;
+ } else if ((*p_argv)[0][1]) {
+ return &(*p_argv)[0][1];
+ } else {
+ *p_argv = *p_argv + 1;
+ *p_argc = *p_argc - 1;
+ return (*p_argv)[0];
+ }
+}
+
+/* This macro is almost identical to the ARGBEGIN macro from suckless.org. If
+ * it ain't broke, don't fix it. */
+#define OPTBEGIN \
+ for ( \
+ ARGV0 = *argv, argc--, argv++; \
+ argv[0] && argv[0][1] && argv[0][0] == '-'; \
+ argc--, argv++ \
+ ) { \
+ int brk_; char argc_ , **argv_, *optarg_; \
+ if (argv[0][1] == '-' && !argv[0][2]) { \
+ (void)optarg_; argv++, argc--; break; \
+ } \
+ for (brk_=0, argv[0]++, argv_=argv; argv[0][0] && !brk_; argv[0]++) { \
+ if (argv_ != argv) break; \
+ argc_ = argv[0][0]; \
+ switch (argc_)
+
+/* Terminate the option parsing. */
+#define OPTEND }}
+
+/* Get the current option character */
+#define OPTC() (argc_)
+
+/* Get an argument from the command line and return it as a string. If no
+ * argument is available, this macro returns NULL */
+#define OPTARG() \
+ (optarg_ = _getopt_(&argc,&argv), brk_ = (optarg_!=0), optarg_)
+
+/* Get an argument from the command line and return it as a string. If no
+ * argument is available, this macro executes the provided code. If that code
+ * returns, then abort is called. */
+#define EOPTARG(code) \
+ (optarg_ = _getopt_(&argc,&argv), \
+ (!optarg_ ? ((code), abort(), (char*)0) : (brk_ = 1, optarg_)))
+
+/* Helper macro to recognize number options */
+#define OPTNUM \
+ case '0': \
+ case '1': \
+ case '2': \
+ case '3': \
+ case '4': \
+ case '5': \
+ case '6': \
+ case '7': \
+ case '8': \
+ case '9'
+
+/* Helper macro to recognize "long" options ala GNU style. */
+#define OPTLONG \
+ case '-'
+
+/* Miscellaneous
+ *****************************************************************************/
+#ifndef nelem
+ #define nelem(x) \
+ (sizeof(x)/sizeof((x)[0]))
+#endif
+
+#ifndef container_of
+ #define container_of(obj, type, member) \
+ ((type*)((uintptr_t)obj - offsetof(type, member)))
+#endif
+
+#ifndef min
+ #define min(x,y) \
+ ((x) < (y) ? (x) : (y))
+#endif
+
+#ifndef max
+ #define max(x,y) \
+ ((x) > (y) ? (x) : (y))
+#endif
+
+#pragma GCC diagnostic pop
--- /dev/null
+#include <stdc.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <pwd.h>
+#include "io.h"
+
+static int TelemFd = -1;
+static char TelemBuf[16384];
+
+static int open_telem(char* path)
+{
+ static unsigned long prev = 0;
+ unsigned long curr = time(NULL);
+ if ((TelemFd < 0) && ((curr - prev) >= 1))
+ {
+ struct stat st = {0};
+ if ((stat(path, &st) >= 0) && S_ISFIFO(st.st_mode))
+ {
+ TelemFd = open(path, O_WRONLY|O_NONBLOCK, 0);
+ prev = curr;
+ }
+ }
+ return TelemFd;
+}
+
+static void close_telem(void)
+{
+ close(TelemFd);
+ TelemFd = -1;
+}
+
+static char* advance(char* buf, size_t* p_len, long nwrite)
+{
+ if (nwrite >= 0)
+ {
+ *p_len -= nwrite;
+ buf = (buf + nwrite);
+ }
+ return buf;
+}
+
+static char* add_timestamp(char* buf, size_t* p_len)
+{
+ time_t rawtime;
+ time(&rawtime);
+ struct tm* timeinfo = localtime(&rawtime);
+ long nwrite = strftime(buf, *p_len, "[%F %T] ", timeinfo);
+ return advance(buf, p_len, nwrite);
+}
+
+static char* add_pid(char* buf, size_t* p_len)
+{
+ long nwrite = snprintf(buf, *p_len, "%s(%d) ", ARGV0, getpid());
+ return advance(buf, p_len, nwrite);
+}
+
+static char* add_message(char* buf, size_t* p_len, char* fmt, va_list args)
+{
+ long nwrite = vsnprintf(buf, *p_len, fmt, args);
+ return advance(buf, p_len, nwrite);
+}
+
+static char* get_fifo_path(void)
+{
+ static char path[1024] = {0};
+ if (!path[0])
+ {
+ snprintf(path, sizeof(path)-1,"%s/tide-telem", getpwuid(getuid())->pw_dir);
+ }
+ return path;
+}
+
+void telem_send(char* fmt, ...)
+{
+ char* str = TelemBuf;
+ size_t nleft = sizeof(TelemBuf);
+ int fd = open_telem(get_fifo_path());
+ if (fd >= 0)
+ {
+ void (*sigfn)(int) = signal(SIGPIPE, SIG_IGN);
+ va_list args;
+ va_start(args, fmt);
+ str = add_timestamp(str, &nleft);
+ str = add_pid(str, &nleft);
+ str = add_message(str, &nleft, fmt, args);
+ va_end(args);
+ if (writefd(fd, TelemBuf, str - TelemBuf) < 0)
+ {
+ close_telem();
+ }
+ signal(SIGPIPE, sigfn);
+ }
+}
--- /dev/null
+= tide(1)
+:doctype: manpage
+
+
+== NAME
+
+tide - a text editor inspired by acme(1) from Plan 9 and Inferno
+
+== SYNOPSIS
+
+*tide* [FILE...]
+
+== DESCRIPTION
+
+*tide* is a text editor inspired by the Acme editor from the Plan 9 and Inferno
+operating systems. Unlike Acme, *tide* is a single window, single file editor.
+Instead of baking a window manager into the editor, this job is relegated to an
+X11 window manager. It is recommended that *tide* be used with a tiling window
+manager such as dwm(1) or spectrwm(1). These window managers will make dealing
+with multiple windows much easier and more efficient.
+
+=== Windows
+
+*tide* windows are divided into three basic regions: an expanding tags region, a
+main content region and an adjacent scroll region. The tags region acts as
+scratch buffer for commands that can be executed to affect the file or the state
+of the editor. As the content of this region grows it will expand up to a
+quarter of the size of the window, shrinking the main content region in kind.
+The main content region displays a view of the file currently being edited. To
+the left of the content region is a narrow vertical region matching the height
+of the content region. This region gives the user visibility into how much of
+the document is currently visible as well as their position in the document.
+
+=== Typing and Editing
+
+Typed characters in *tide* are delivered to the currently active region. The
+active region is the one currently under the mouse cursor. That is to say, the
+focus follows the mouse much as it does in acme(1) but there is a keyboard
+shortcut that allows users to toggle focus between the content region and the
+tag region by warping the mouse cursor from one region to the next.
+
+The mechanics of editing text in the tag and content region is identical with
+the exception of searching and saving. Edited content in the tag region is not
+saved to disk while the content region is. This region is considered a scratch
+buffer for commands, notes, and other bits of text that are placed there
+temporarily. The content region displays the current view of the file being
+edited and can be flushed to disk when requested.
+
+Searching with a term selected in the tags region will search for the term in
+the content region rather than the tags region. In this way a user can edit the
+search term incrementally and perform repeated searches through the content
+region. Searching for a term in the content region will search for the term in
+the content region however.
+
+=== Text Selection
+
+*tide* uses a series of rules to determine how much text to select when the user
+executes a context sensitive selection, a search, or a context sensitive
+execution. The following rules are applied in order until a match is found.
+
+1. *Cursor over '(' or ')':*
+ Highlight text between the parentheses including nested parentheses.
+
+2. *Cursor over '[' or ']':*
+ Highlight text between the brackets including nested brackets.
+
+3. *Cursor over '{' or '}':*
+ Highlight text between the braces including nested braces.
+
+4. *Cursor at beginning or end of line:*
+ Highlight the entire line (including the newline)
+
+5. *Cursor over alphanumeric character or underscore:*
+ Highlight the word under the cursor consisting of only alphanumeric and
+ underscore characters.
+
+If none of the above rules match, *tide* will simply highlight the block of
+non-whitespace characters under the cursor.
+
+=== Mouse Handling
+
+*Left Button*::
+ The left mouse button is used for selecting text or moving the cursor. A
+ single-click will move the mose to the clicked location. A double-click will
+ will select the object under the clicked location based on context as
+ described in <<Text Selection>>. A triple-click will select the largest
+ contiguous chunk of non-whitespace characters at the clicked location.
+
+*Middle Button*::
+ The middle mouse button is used for executing text at the clicked location.
+ The command to be executed is determined by the context rules defined in the
+ <<Text Selection>> section. The cursor position is not changed on a
+ middle click.
+
+*Right Button*::
+ The right button is used to search for the next occurrence of the clicked
+ text. The search term is determined by the context rules defined in the
+ <<Text Selection>> section. The search direction follows the direction of
+ the previous search operation. The *Shift* key can be held in combination
+ with a click of the right mosue button in order to reverse the search
+ direction.
+
+=== Command Execution
+
+*tide* allows for the execution of any arbitrary text as a command. The input
+and output to/from each command executed can be controlled by prepending one of
+a set of sigils defined below. These sigils instruct *tide* from where the
+command will receive its input and where it will place its output (both standard
+and errors).
+
+*! - Run command detached from editor*::
+ The command will be executed in the background and all of its input and
+ output file descriptors will be closed.
+
+*< - Input from command*:
+ The command will be executed in the background and its standard output will
+ be placed in the content region. Its error output will be placed in the tags
+ region.
+
+*> - Output to command*::
+ The command will be executed in the background. The currently selected text
+ will be written to the command's standard input. The command's standard
+ output and standard error content will be written to the tags region.
+
+*| - Pipe through command*::
+ The command will be executed in the background. The currently selected text
+ will be written to the command's standard input. The command's standard
+ output will replace the currently selected text. Any error output will be
+ placed in the tags region.
+
+*: - Pipe through sed(1)*::
+ Identical to '|' except that the command is always sed(1). This is a
+ convenience shortcut to allow quick and easy access to sed for editing
+ blocks of text.
+
+*Commands with no sigil*::
+ Commands with none of the aforementioned sigils will be executed in the
+ background and have their standard output placed in the content region and
+ their error output placed in the tags region.
+
+=== Keyboard Shortcuts
+
+*Unix Standard Shortcuts:*
+
+*Ctrl+u*::
+ Delete from the cursor position to the beginning of the line.
+
+*Ctrl+k*::
+ Delete from the cursor position to the end of the line.
+
+*Ctrl+w*::
+ Delete the word to the left.
+
+*Ctrl+a*::
+ Move cursor to the beginning of the line.
+
+*Ctrl+e*::
+ Move cursor to the end of the line.
+
+*Cursor Movement and Selection:*
+
+The key combinations below are responsible for moving the cursor around the
+document by character, by word, or by line. The *Shift* modifier key can be
+applied to any of them to also extend the current selection to the new cursor
+position.
+
+*Escape*::
+ Highlight the last contiguous block of inserted text or clear the current
+ selection (deselect the currently selected text).
+
+*Left*::
+ Move the cursor one character to the left.
+
+*Right*::
+ Move the cursor one character to the right.
+
+*Up*::
+ Move the cursor to the previous line.
+
+*Down*::
+ Move the cursor to the next line.
+
+*Ctrl+Up*::
+ Move the current line or selection up a line.
+
+*Ctrl+Down*::
+ Move the current line or selection down a line.
+
+*Ctrl+Left*::
+ Move the cursor to the beginning of the word to the left.
+
+*Ctrl+Right*::
+ Move the cursor to the end of the word to the right.
+
+*Modern Text Editing Shortcuts:*
+
+*Ctrl+s*::
+ Save the contents of the content region to disk.
+
+*Ctrl+z*::
+ Undo the last change performed on the active region.
+
+*Ctrl+y*::
+ Redo the previously undone change on the active region.
+
+*Ctrl+x*::
+ Cut the selected text to the X11 CLIPBOARD selection. If no text is selected
+ then the current line is cut.
+
+*Ctrl+c*::
+ Copy the selected text to the X11 CLIPBOARD selection. If no text is
+ selected then the current line is copied.
+
+*Ctrl+v*::
+ Paste the contents of the X11 CLIPBOARD selection to the active region.
+
+*Ctrl+j*::
+ Join the current line and the next line.
+
+*Ctrl+l*::
+ Select the current line.
+
+*Ctrl+Shift+a*::
+ Select all text in the buffer.
+
+*Delete*::
+ Delete the character to the right.
+
+*Ctrl+Delete*::
+ Delete the word to the right.
+
+*Backspace*::
+ Delete the character to the left.
+
+*Ctrl+Backspace*::
+ Delete the word to the left.
+
+*Ctrl+Enter*::
+ Create a new line after the current line and place the cursor there.
+
+*Ctrl+Shift+Enter*::
+ Create a new line before the current line and place the cursor there.
+
+*PageUp*::
+ Scroll the active region up by one screenful of text. The cursor is not
+ affected by this operation.
+
+*PageDn*::
+ Scroll the active region down by one screenful of text. The cursor is not
+ affected by this operation.
+
+*Search Shortcuts:*
+
+The shortcuts below allow the user to search for selected text or by context.
+The direction of the search defaults to the forward direction with regard to the
+position in the file. Each search follows the direction of the previous search
+unless the *Shift* modifier is applied. The *Shift* modifier causes the current
+search operation to be applied in the opposite direction of the previous.
+
+*Ctrl+f*::
+ Search for the next occurrence of the selected text in the content region.
+ If no text is currently selected, the text under the cursor is selected
+ based on context as described in <<Text Selection>>.
+
+*Ctrl+Alt+f*::
+ Search for the next occurence previous search term in the content region.
+
+*Implementation-specific Shortcuts*
+
+*Ctrl+[*::
+ Decrease the indent level of the selected text.
+
+*Ctrl+]*::
+ Increase the indent level of the selected text.
+
+*Ctrl+h*::
+ Highlight the item under cursor following the rules in <<Text Selection>>
+
+*Ctrl+t*::
+ Toggle focus between the tags region and the content region.
+
+*Ctrl+q*::
+ Quit the editor. If the file is modified a warning will be printed in the
+ tags region and the editor will not quit. Executing the shortcut twice
+ within 250ms will ignore the warning and quit the editor without saving.
+
+*Ctrl+d*::
+ Execute the selected text as described in <<Command Execution>>. If no text is
+ selected, the text under cursor is selecte dbased on context as described in
+ <<Text Selection>>.
+
+*Ctrl+o*::
+ Launch pickfile(1) to choose a file from a recursive list of files in the
+ current directory and sub directories. This file will be opened in a new
+ instance of *tide*.
+
+*Ctrl+p*::
+ Launch picktag(1) to select a tag from a ctags(1) generated index file.
+ *tide* will jump to the selected ctag definition in the current window if
+ the file is currently being edited. Otherwise, a new instance of *tide* will
+ be launched with the target file and the cursor set to the line containing
+ the definition.
+
+*Ctrl+g*::
+ Lookup the selected symbol or symbol under the cursor in a ctags(1)
+ generated index file. Jump to the location of the definition if it exist in
+ the current file. Otherwise, a new instance of *tide* will be launched with
+ the target file and the cursor set to the line containing the definition.
+
+*Ctrl+n*::
+ Open a new instance of *tide* with no filename.
+
+=== Builtin Tags
+
+*Cut*::
+ Cut the selection to the X11 CLIPBOARD selection.
+
+*Copy*::
+ Copy the selection to the X11 CLIPBOARD selection.
+
+*Eol*::
+ Toggle the line-ending style for the buffers contents between LF and CRLF
+
+*Find [term]*::
+ Find the next occurrence of the selected text.
+
+*GoTo [arg]*::
+ Jump to a specific line number or symbol.
+
+*Indent*::
+ Toggle the autoindent feature on or off.
+
+*Overwrite*::
+ Save the file to disk even if the file has been modified externally.
+
+*Paste*::
+ Paste the contents of the X11 CLIPBOARD selection into the buffer.
+
+*Quit*::
+ Quit the editor.
+
+*Redo*::
+ Redo the last undone change.
+
+*Reload*::
+ Reload the buffer contents from the on-disk file.
+
+*Save*::
+ Save the contents of the buffer to disk.
+
+*SaveAs [path]*::
+ Save the contents of the buffer to disk. If a path argument is provided, the
+ buffer will be saved to the new path.
+
+*Tabs*::
+ Toggle the expand tabs featuer on or off.
+
+*Undo*::
+ Undo the previous edit.
+
+== OPTIONS
+
+*-I _OPT_*::
+ Turn on/off auto indenting of new lines.
+
+*-W _OPT_*::
+ Turn on/off trimming of trailing whitespace on save.
+
+*-E _OPT_*::
+ Turn on/off expanding tabs to spaces.
+
+*-N _OPT_*::
+ Turn on/off DOS line ending styles (<CR><LF>)
+
+*-T _STRING_*::
+ Sets the text of the tags region.
+
+*-S _SHELL_*::
+ Sets the shell to be used for all external command invocation. The shell
+ must use the -c flag to receive commands to execute
+
+*-c _CMD_*::
+ Executes the given command in a new tide window.
+
+*-l _LINENUM_*::
+ Jumps the view to LINENUM in the document.
+
+== ENVIRONMENT
+
+*SHELL*::
+ The contents of this variable are used as the shell in which all non-builtin
+ commands are executed. If this variable is not defined, sh(1) is used as a
+ fallback shell.
+
+== SEE ALSO
+
+acme(1), edit(1), pick(1), pickfile(1), picktag(1)
--- /dev/null
+#include "x11.h"
+
+/* undo/redo list item */
+typedef struct Log {
+ struct Log* next; /* pointer to next operation in the stack */
+ size_t beg; /* beginning of affected region */
+ size_t end; /* end of affected region*/
+ char* data; /* pointer to deleted character data */
+ int transid; /* id of transaction this item is a part of */
+} Log;
+
+/* cursor/selection representation */
+typedef struct {
+ size_t beg;
+ size_t end;
+ size_t col;
+} Sel;
+
+typedef struct {
+ size_t bufsize; /* size of the buffer in runes */
+ char* bufstart; /* start of the data buffer */
+ char* bufend; /* end of the data buffer */
+ char* gapstart; /* start of the gap */
+ char* gapend; /* end of the gap */
+} GapBuf;
+
+typedef struct {
+ int transid; /* id number of the current transaction */
+ Log* undo; /* undo list */
+ Log* redo; /* redo list */
+ Log* save; /* pointer to last save position */
+} EditLog;
+
+/* gap buffer main data structure */
+typedef struct {
+ enum {
+ NORMAL = 0, MODIFIED, OUTDATED, ERRORED
+ } status;
+ char* path; /* the path to the open file */
+ GapBuf contents; /* underlying sequence data structure */
+ EditLog log; /* underlying log of edit operations */
+ Sel selection; /* the currently selected text */
+ Sel point; /* tracks external command I/O */
+ void (*oninsert)(int byte);
+} Buf;
+
+enum {
+ BY_RUNE = 0,
+ BY_WORD,
+ BY_LINE
+};
+
+void range_add(Sel* p_range, size_t off);
+void range_del(Sel* p_range, size_t beg, size_t end);
+
+void gapbuf_init(GapBuf* buf);
+size_t gapbuf_end(GapBuf* buf);
+long gapbuf_save(GapBuf* buf, char* path);
+void gapbuf_load(GapBuf* buf, char* path);
+char gapbuf_getb(GapBuf* buf, size_t off);
+void gapbuf_putb(GapBuf* buf, char b, Sel* p_sel);
+void gapbuf_del(GapBuf* buf, size_t off, size_t len);
+
+void editlog_seqstart(EditLog* log);
+void editlog_seqstop(EditLog* log);
+void editlog_clear(EditLog* log);
+void editlog_lastins(EditLog* log, Sel* p_sel);
+void editlog_undo(Buf* log);
+void editlog_redo(Buf* log);
+void editlog_add(Buf* buf, size_t beg, size_t end, char* data);
+
+void buf_init(Buf* buf);
+void buf_setpath(Buf* buf, char* path);
+void buf_load(Buf* buf, char* path);
+void buf_reload(Buf* buf);
+int buf_save(Buf* buf, char* path);
+size_t buf_end(Buf* buf);
+
+int buf_getrat(Buf* buf, size_t off);
+void buf_putc(Buf* buf, int c);
+void buf_puts(Buf* buf, char* s);
+int buf_getc(Buf* buf);
+char* buf_gets(Buf* buf);
+char* buf_getsat(Buf* buf, size_t beg, size_t end);
+void buf_del(Buf* buf);
+
+void buf_logstart(Buf* buf);
+void buf_logstop(Buf* buf);
+void buf_logclear(Buf* buf);
+void buf_lastins(Buf* buf);
+void buf_undo(Buf* buf);
+void buf_redo(Buf* buf);
+
+bool buf_isbol(Buf* buf, size_t pos);
+bool buf_iseol(Buf* buf, size_t pos);
+size_t buf_bol(Buf* buf, size_t pos);
+size_t buf_eol(Buf* buf, size_t pos);
+
+bool buf_findstr(Buf* buf, int dir, char* str);
+char* buf_fetch(Buf* buf, bool (*isword)(Rune), size_t off);
+
+void buf_setln(Buf* buf, size_t line);
+void buf_getln(Buf* buf, size_t* begln, size_t* endln);
+
+size_t buf_selbeg(Buf* buf);
+size_t buf_selend(Buf* buf);
+size_t buf_selsz(Buf* buf);
+void buf_selln(Buf* buf);
+void buf_selclr(Buf* buf, int dir);
+bool buf_insel(Buf* buf, size_t off);
+bool buf_inpoint(Buf* buf, size_t off);
+void buf_selword(Buf* buf, bool (*isword)(Rune));
+void buf_selall(Buf* buf);
+void buf_selctx(Buf* buf, bool (*isword)(Rune));
+
+size_t buf_byrune(Buf* buf, size_t pos, int count);
+size_t buf_moveby(Buf* buf, int bything, size_t pos, int count);
+void buf_selmove(Buf* buf, bool extsel, int move, int bything);
+void buf_selmoveto(Buf* buf, bool extsel, size_t off);
+
+/* Screen management functions
+ *****************************************************************************/
+typedef struct {
+ size_t off; /* offset of the rune in the buffer */
+ size_t width; /* width of the glyph on screen */
+ Rune rune; /* rune value for the cell */
+} UGlyph;
+
+typedef struct {
+ size_t off; /* offset of the first rune in the row */
+ size_t len; /* number of runes displayed in the row */
+ UGlyph cols[]; /* row data */
+} Row;
+
+typedef struct {
+ enum {
+ CURSOR = (1 << 0),
+ CENTER = (1 << 1),
+ } sync_flags; /* flags controlling how the view is synced to cursor */
+ Buf buffer; /* the buffer used to populate the view */
+ size_t index; /* */
+ size_t width; /* width of the view in pixels */
+ size_t nvisible; /* number of visible lines */
+ size_t nrows; /* number of rows and columns in the view */
+ Row** rows; /* array of row data structures */
+} View;
+
+enum {
+ LEFT = -1,
+ RIGHT = +1,
+ UP = -1,
+ DOWN = +1
+};
+
+void view_init(View* view, char* file);
+void view_sync(View* view);
+void view_reload(View* view);
+size_t view_limitrows(View* view, size_t maxrows);
+void view_resize(View* view, size_t width, size_t nrows);
+void view_update(View* view);
+Row* view_getrow(View* view, size_t row);
+void view_byrune(View* view, int move, bool extsel);
+void view_byword(View* view, int move, bool extsel);
+void view_byline(View* view, int move, bool extsel);
+char* view_fetch(View* view, size_t row, size_t col, bool (*isword)(Rune));
+bool view_findstr(View* view, int dir, char* str);
+void view_insert(View* view, Rune rune);
+void view_delete(View* view, int dir, bool byword);
+void view_bol(View* view, bool extsel);
+void view_eol(View* view, bool extsel);
+void view_bof(View* view, bool extsel);
+void view_eof(View* view, bool extsel);
+void view_undo(View* view);
+void view_redo(View* view);
+void view_paste(View* view, char* str);
+void view_putstr(View* view, char* str);
+void view_putraw(View* view, char* str);
+char* view_getstr(View* view);
+char* view_getcmd(View* view);
+char* view_getword(View* view);
+char* view_getctx(View* view);
+void view_selctx(View* view);
+void view_scroll(View* view, int move);
+void view_scrollpage(View* view, int move);
+void view_setln(View* view, size_t line);
+size_t view_selsize(View* view);
+void view_selprev(View* view);
+void view_setcursor(View* view, size_t row, size_t col, bool extsel);
+void view_selextend(View* view, size_t row, size_t col);
+void view_selword(View* view, size_t row, size_t col);
+void view_select(View* view, size_t row, size_t col);
+void view_jumpto(View* view, bool extsel, size_t off);
+void view_scrollto(View* view, size_t csr);
+Rune view_getrune(View* view);
+void view_selectall(View* view);
+void view_selectobj(View* view, bool (*istype)(Rune));
+
+/* Command Executions
+ *****************************************************************************/
+/* src/tide/job.c */
+
+typedef struct Job Job;
+
+typedef void (*jobfn_t)(Job* job);
+
+struct Job {
+ Job *next;
+ int pid, fd;
+ void *data;
+ void (*writefn)(Job *job);
+ void (*readfn)(Job *job);
+};
+
+Job* job_list(void);
+void job_kill(Job* job);
+bool job_poll(int ms);
+void job_spawn(int fd, jobfn_t readfn, jobfn_t writefn, void* data);
+void job_start(char** cmd, char* data, size_t ndata, View* dest);
+int job_run(char** cmd);
+void job_readfd(int fd, View* view);
+
+/* Common Shortcuts
+ *****************************************************************************/
+/* src/tide/shortcuts.c */
+
+void select_line(char* arg);
+void join_lines(char* arg);
+void delete(char* arg);
+void cut(char* arg);
+void paste(char* arg);
+void copy(char* arg);
+void del_to_bol(char* arg);
+void del_to_eol(char* arg);
+void del_to_bow(char* arg);
+void backspace(char* arg);
+void cursor_bol(char* arg);
+void cursor_eol(char* arg);
+void cursor_mvlr(int dir);
+void cursor_mvupdn(int dir);
+void cursor_home(char* arg);
+void cursor_end(char* arg);
+void cursor_up(char* arg);
+void cursor_dn(char* arg);
+void cursor_left(char* arg);
+void cursor_right(char* arg);
+void page_up(char* arg);
+void page_dn(char* arg);
+void select_prev(char* arg);
+void undo(char* arg);
+void redo(char* arg);
+void newline(char* arg);
+void highlight(char* arg);
+
+enum {
+ MouseActNone,
+ MouseActSel,
+ MouseActSelCtx,
+ MouseActSelWord,
+ MouseActCut,
+ MouseActPaste,
+ MouseActExec,
+ MouseActExecArg,
+ MouseActFetch,
+ MouseActScrollUp,
+ MouseActScrollDn,
+};
+
+int process_mouse(int btn, bool pressed);
+
+/* Command and Tag Exectuion
+ *****************************************************************************/
+/* src/tide/exec.c */
+
+typedef struct {
+ char* tag;
+ void (*action)(char*);
+} Tag;
+
+void exec_init(Tag* p_tags);
+void exec_cmd(char* cmd);
+void exec_cmdwarg(char* cmd, char* arg);
+void exec_rawwarg(char* cmd, char* arg);
+
+/* UI Window Control
+ *****************************************************************************/
+/* src/tide/main.c */
+
+typedef struct XFont XFont;
+
+typedef struct {
+ uint32_t attr; /* attributes applied to this cell */
+ uint32_t rune; /* rune value for the cell */
+} XGlyph;
+
+typedef struct {
+ void* font;
+ uint32_t glyph;
+ short x;
+ short y;
+} XGlyphSpec;
+
+enum {
+ MouseLeft = 1,
+ MouseMiddle = 2,
+ MouseRight = 3,
+ MouseWheelUp = 4,
+ MouseWheelDn = 5
+};
+
+typedef enum {
+ TAGS = 0,
+ EDIT = 1,
+ NREGIONS = 2,
+ FOCUSED = 2
+} WinRegion;
+
+void win_init(void);
+void win_title(char* path);
+void win_font(char* font);
+void win_prop_set(char* xname, char* ename, char* value);
+void win_loop(void);
+void win_quit(void);
+void win_togglefocus(void);
+View* win_view(WinRegion id);
+Buf* win_buf(WinRegion id);
+bool win_keymodsset(int mask);
+void win_setln(int line_num);
+
+typedef struct {
+ int x, y;
+ int h, w;
+} drawcsr;
+
+/* UI Drawing Routines
+ *****************************************************************************/
+void draw_rect(XConf* x, int color, int posx, int posy, int width, int height);
+void draw_statbox(XConf* x, int status);
+int draw_hrule(XConf* x, drawcsr* csr);
+void draw_view(XConf* x, View* view, XftFont* font, size_t nrows, drawcsr* csr, int bg, int fg, int sel, bool csrsync);
+bool draw_csr(XConf* x, View* view, int fg, size_t fheight, int posx, int posy, bool csrdrawn);
+void draw_scroll(XConf* x, drawcsr* csr, View* view, int divider);
+
+/* Pseudo Terminal Routines
+ *****************************************************************************/
+bool xpty_active(void);
+void xpty_togglescroll(void);
+int xpty_run(View* view, char** cmd);
+void xpty_send(char* cmd);
+void xpty_rawsend(char* cmd);
--- /dev/null
+/** @file */
+enum {
+ UTF_MAX = 6u, /* maximum number of bytes that make up a rune */
+ RUNE_SELF = 0x80, /* byte values larger than this are *not* ascii */
+ RUNE_ERR = 0xFFFD, /* rune value representing an error */
+ RUNE_MAX = 0x10FFFF, /* Maximum decodable rune value */
+ RUNE_EOF = -1, /* rune value representing end of file */
+};
+
+/* Represents a unicode code point */
+typedef int32_t Rune;
+
+size_t utf8encode(char str[UTF_MAX], Rune rune);
+bool utf8decode(Rune* rune, size_t* length, int byte);
+int runewidth(unsigned col, Rune r);
+bool risword(Rune r);
+bool rissigil(Rune r);
+bool risfile(Rune r);
+bool riscmd(Rune r);
+bool risblank(Rune r);
+bool risbigword(Rune r);
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+#include <wchar.h>
+#include <ctype.h>
+
+#include "config.h"
+
+static const uint8_t UTF8_SeqBits[] = { 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE };
+static const uint8_t UTF8_SeqMask[] = { 0x00, 0xFF, 0x1F, 0x0F, 0x07, 0x03, 0x01, 0x00 };
+static const uint8_t UTF8_SeqLens[] = { 0x01, 0x00, 0x02, 0x03, 0x04, 0x05, 0x06, 0x00 };
+
+static bool runevalid(Rune val)
+{
+ return (val <= RUNE_MAX)
+ && ((val & 0xFFFE) != 0xFFFE)
+ && ((val < 0xD800) || (val > 0xDFFF))
+ && ((val < 0xFDD0) || (val > 0xFDEF));
+}
+
+static size_t runelen(Rune rune)
+{
+ size_t ret;
+ if(!runevalid(rune))
+ {
+ ret = 0;
+ }
+ else if(rune <= 0x7F)
+ {
+ ret = 1;
+ }
+ else if(rune <= 0x07FF)
+ {
+ ret = 2;
+ }
+ else if(rune <= 0xFFFF)
+ {
+ ret = 3;
+ }
+ else
+ {
+ ret = 4;
+ }
+ return ret;
+}
+
+static uint8_t utfseq(uint8_t byte)
+{
+ uint8_t ret = 0;
+ for (int i = 1; i < 8; i++)
+ {
+ if ((byte & UTF8_SeqBits[i]) == UTF8_SeqBits[i-1])
+ {
+ ret = UTF8_SeqLens[i-1];
+ break;
+ }
+ }
+ return ret;
+}
+
+size_t utf8encode(char str[UTF_MAX], Rune rune)
+{
+ size_t len = runelen(rune);
+ str[0] = (len == 1 ? 0x00 : UTF8_SeqBits[len])
+ | (UTF8_SeqMask[len] & (rune >> (6 * (len-1))));
+ for (size_t i = 1; i < len; i++)
+ str[i] = 0x80u | (0x3Fu & (rune >> (6 * (len-i-1))));
+ return len;
+}
+
+bool utf8decode(Rune* rune, size_t* length, int byte)
+{
+ /* Handle the start of a new rune */
+ if (*length == 0) {
+ /* If we were fed in an EOF as a start byte, handle it here */
+ if (byte == EOF) {
+ *rune = RUNE_EOF;
+ } else {
+ /* Otherwise, decode the first byte of the rune */
+ *length = utfseq(byte);
+ *rune = (*length == 0) ? RUNE_ERR : (byte & UTF8_SeqMask[*length]);
+ (*length)--;
+ }
+ /* Handle continuation bytes */
+ } else if ((byte & 0xC0) == 0x80) {
+ /* add bits from continuation byte to rune value
+ * cannot overflow: 6 byte sequences contain 31 bits */
+ *rune = (*rune << 6) | (byte & 0x3F); /* 10xxxxxx */
+ (*length)--;
+ /* Sanity check the final rune value before finishing */
+ if ((*length == 0) && !runevalid(*rune))
+ *rune = RUNE_ERR;
+ /* Didn't get the continuation byte we expected */
+ } else {
+ *rune = RUNE_ERR;
+ }
+ /* Tell the caller whether we finished or not */
+ return ((*length == 0) || (*rune == RUNE_ERR));
+}
+
+int runewidth(unsigned col, Rune r)
+{
+ int width;
+ if (r == '\t')
+ {
+ width = (TabWidth - (col % TabWidth));
+ }
+ else
+ {
+ width = wcwidth(r);
+ if (width < 0) width = 1;
+ }
+ return width;
+}
+
+bool risword(Rune r)
+{
+ return (r < 127 && (isalnum(r) || r == '_' || r == '+' || r == '-'));
+}
+
+bool rissigil(Rune r)
+{
+ return (r == ':' || r == '!' || r == '&' || r == '|' || r == '>' || r == '<');
+}
+
+bool risfile(Rune r)
+{
+ return (risword(r) || r == '/' || r == '.' || r == ':' || r == '-' || r == '~');
+}
+
+bool riscmd(Rune r)
+{
+ return (risword(r) || rissigil(r));
+}
+
+bool risblank(Rune r)
+{
+ return (r == ' ' || r == '\t' || r == '\n' || r == '\r');
+}
+
+bool risbigword(Rune r)
+{
+ return !risblank(r);
+}
+
--- /dev/null
+/**
+ @file
+ @brief Generic vector implementation.
+ @author Michael D. Lowis
+ @license BSD 2-clause License
+*/
+#ifndef VEC_H
+#define VEC_H
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+
+typedef struct {
+ size_t elem_count;
+ size_t elem_size;
+ size_t elem_capacity;
+ uint8_t* elem_buffer;
+} vec_t;
+
+typedef int (*vec_cmpfn_t)(const void*,const void*);
+
+#ifndef DEFAULT_VEC_CAPACITY
+#define DEFAULT_VEC_CAPACITY (size_t)8
+#endif
+
+static void vec_init(vec_t* vec, size_t elem_size) {
+ vec->elem_size = elem_size;
+ vec->elem_count = 0;
+ vec->elem_capacity = DEFAULT_VEC_CAPACITY;
+ vec->elem_buffer = malloc(elem_size * vec->elem_capacity);
+}
+
+static size_t vec_size(vec_t* vec) {
+ return vec->elem_count;
+}
+
+static bool vec_empty(vec_t* vec) {
+ return (vec->elem_count == 0);
+}
+
+static size_t vec_capacity(vec_t* vec) {
+ return vec->elem_capacity;
+}
+
+static size_t vec_next_capacity(size_t req_size) {
+ size_t next_power = req_size;
+ size_t num_bits = sizeof(size_t) * 8;
+ size_t bit_n;
+
+ /* Find the next highest power of 2 */
+ next_power--;
+ for (bit_n = 1; bit_n < num_bits; bit_n = bit_n << 1)
+ next_power = next_power | (next_power >> bit_n);
+ next_power++;
+
+ return next_power;
+}
+
+static void vec_reserve(vec_t* vec, size_t size) {
+ vec->elem_buffer = realloc(vec->elem_buffer, size * vec->elem_size);
+ vec->elem_capacity = size;
+}
+
+static void vec_resize(vec_t* vec, size_t count, void* fillval) {
+ if (count > vec->elem_count) {
+ vec_reserve(vec, vec_next_capacity(count+1));
+ for (; vec->elem_count < count; vec->elem_count++)
+ memcpy(&(vec->elem_buffer[vec->elem_count * vec->elem_size]), fillval, vec->elem_size);
+ } else if (count < vec->elem_count) {
+ vec->elem_count = count;
+ }
+}
+
+static void vec_shrink_to_fit(vec_t* vec) {
+ vec->elem_buffer = realloc(vec->elem_buffer, vec->elem_count * vec->elem_size);
+ vec->elem_capacity = vec->elem_count;
+}
+
+static void* vec_at(vec_t* vec, size_t index) {
+ return &(vec->elem_buffer[index * vec->elem_size]);
+}
+
+static void vec_set(vec_t* vec, size_t index, void* data) {
+ memcpy(&(vec->elem_buffer[index * vec->elem_size]), data, vec->elem_size);
+}
+
+static bool vec_insert(vec_t* vec, size_t index, size_t num_elements, ...) {
+ (void)vec;
+ (void)index;
+ (void)num_elements;
+ return false;
+}
+
+static bool vec_erase(vec_t* vec, size_t start_idx, size_t end_idx) {
+ (void)vec;
+ (void)start_idx;
+ (void)end_idx;
+ return false;
+}
+
+static void vec_push_back(vec_t* vec, void* data) {
+ vec_resize(vec, vec->elem_count+1, data);
+}
+
+static void vec_pop_back(vec_t* vec, void* outdata) {
+ vec->elem_count--;
+ memcpy(outdata, &(vec->elem_buffer[vec->elem_count * vec->elem_size]), vec->elem_size);
+}
+
+static void vec_clear(vec_t* vec) {
+ vec->elem_count = 0;
+}
+
+static void vec_sort(vec_t* vec, int (*cmpfn)(const void*,const void*)) {
+ qsort(vec->elem_buffer, vec->elem_count, vec->elem_size, cmpfn);
+}
+
+#pragma GCC diagnostic pop
+
+#endif /* VEC_H */
--- /dev/null
+#include <stdc.h>
+#include "dbc.h"
+#include "utf.h"
+#include <ctype.h>
+
+#include "tide.h"
+#include "config.h"
+
+#ifndef NDEBUG
+static bool view_valid(View* view)
+{
+ return (
+ (view->sync_flags <= 3u)
+ && (!view->nrows || view->index < view->nrows)
+// && (view->width > 0)
+// && (view->nvisible > 0)
+// && (view->nrows > 0)
+// && (view->rows != NULL)
+ );
+}
+#endif
+
+/* Provided by x11.c */
+extern size_t glyph_width(View* view, int c);
+
+#define BUF (&(view->buffer))
+#define CSRPOS (view->buffer.selection.end)
+
+static void move_selection(View* view, bool extsel, int move, int bything)
+{
+ view->sync_flags |= CURSOR;
+ buf_selmove(BUF, extsel, move, bything);
+}
+
+static void move_to(View* view, bool extsel, size_t off)
+{
+ view->sync_flags |= CURSOR;
+ buf_selmoveto(BUF, extsel, off);
+}
+
+static bool selection_visible(View* view)
+{
+ bool visible = true;
+ if (view->rows && view->nrows)
+ {
+ size_t csr = CSRPOS;
+ size_t beg = view->rows[0]->off;
+ size_t end = view->rows[view->nrows-1]->off
+ + view->rows[view->nrows-1]->len;
+ visible = (beg <= csr && csr <= end);
+ }
+ return visible;
+}
+
+static Sel* getsel(View* view)
+{
+ return &(view->buffer.selection);
+}
+
+static void clear_rows(View* view, size_t startidx)
+{
+ if (view->rows)
+ {
+ /* Free and clear invalid rows now */
+ for (size_t i = startidx; i < view->nrows; i++)
+ {
+ free(view->rows[i]);
+ view->rows[i] = NULL;
+ }
+ /* grow row array if needed */
+ if (startidx > view->nrows)
+ {
+ view->rows = realloc(view->rows, startidx);
+ }
+ /* zero out newly created slots */
+ for (size_t i = view->nrows; i < startidx; i++)
+ {
+ view->rows[i] = NULL;
+ }
+ view->nrows = startidx;
+ }
+}
+
+void view_init(View* view, char* file)
+{
+ require(view != NULL);
+ clear_rows(view, 0);
+ view->sync_flags |= (CURSOR|CENTER);
+ view->index = 0;
+ view->width = 0;
+ view->nvisible = 0;
+ /* load the file and jump to the address returned from the load function */
+ buf_init(BUF);
+ if (file)
+ {
+ buf_load(BUF, file);
+ }
+ ensure(view_valid(view));
+}
+
+void view_reload(View* view)
+{
+ require(view != NULL);
+ if (view->buffer.path)
+ {
+ buf_reload(BUF);
+ view->sync_flags |= (CURSOR|CENTER);
+ }
+ ensure(view_valid(view));
+}
+
+void view_sync(View* view)
+{
+ require(view != NULL);
+ view->sync_flags |= (CURSOR|CENTER);
+ ensure(view_valid(view));
+}
+
+static size_t rune_width(View* view, int c, size_t xpos, size_t width)
+{
+ size_t sz;
+ if (c == '\r')
+ {
+ sz = 0;
+ }
+ else if (c == '\n')
+ {
+ sz = (width-xpos);
+ }
+ else if (c == '\t')
+ {
+ sz = (glyph_width(view, c) - (xpos % glyph_width(view, c)));
+ }
+ else
+ {
+ sz = glyph_width(view, c);
+ }
+ return sz;
+}
+
+size_t view_limitrows(View* view, size_t maxrows)
+{
+ require(view != NULL);
+ size_t nrows = 1, off = 0, xpos = 0;
+ while (nrows < maxrows && off < buf_end(&(view->buffer)))
+ {
+ Rune rune = buf_getrat(&(view->buffer), off);
+ xpos += rune_width(view, rune, xpos, view->width);
+ /* if the line is full, reset the line and increase row count */
+ if (xpos > view->width)
+ {
+ xpos = 0, nrows++;
+ }
+ else
+ {
+ if (rune == '\n')
+ {
+ xpos = 0;
+ nrows++;
+ }
+ off = buf_byrune(&(view->buffer), off, RIGHT);
+ }
+ }
+ ensure(nrows >= 1);
+ return nrows;
+}
+
+static size_t add_row(View* view, size_t off)
+{
+ /* allocate a new row */
+ view->nrows++;
+ view->rows = realloc(view->rows, sizeof(Row*) * view->nrows);
+ view->rows[view->nrows-1] = calloc(1, sizeof(Row));
+ view->rows[view->nrows-1]->off = off;
+
+ /* populate the row with characters */
+ for (size_t xpos = 0; xpos < view->width;)
+ {
+ int rune = buf_getrat(&(view->buffer), off);
+ size_t rwidth = rune_width(view, rune, xpos, view->width);
+ xpos += rwidth;
+ if (xpos <= view->width)
+ {
+ size_t len = view->rows[view->nrows-1]->len + 1;
+ view->rows[view->nrows-1] = realloc(
+ view->rows[view->nrows-1], sizeof(Row) + (len * sizeof(UGlyph)));
+ view->rows[view->nrows-1]->len = len;
+ view->rows[view->nrows-1]->cols[len-1].rune = rune;
+ view->rows[view->nrows-1]->cols[len-1].width = rwidth;
+ view->rows[view->nrows-1]->cols[len-1].off = off;
+ off = buf_byrune(&(view->buffer), off, RIGHT);
+ }
+ }
+ return off;
+}
+
+static void resize(View* view, size_t width, size_t nrows, size_t off)
+{
+ bool first_line_done = false;
+ clear_rows(view, 0);
+ view->width = width;
+ view->nvisible = nrows;
+ view->index = 0;
+ size_t beg = off, bend = buf_end(&(view->buffer));
+ off = buf_bol(&(view->buffer), off);
+ if (off > bend)
+ {
+ off = bend;
+ }
+
+ for (size_t i = 0; nrows > 0; i++)
+ {
+ off = add_row(view, off);
+ Row* row = view->rows[view->nrows-1];
+ first_line_done = (first_line_done || (row->cols[row->len-1].rune == '\n'));
+ if (first_line_done)
+ {
+ nrows--;
+ }
+ if (beg < bend && beg >= row->off && beg <= row->cols[row->len-1].off)
+ {
+ view->index = i;
+ }
+ }
+}
+
+void view_resize(View* view, size_t width, size_t nrows)
+{
+ require(view != NULL);
+ require(width > 0);
+ require(nrows > 0);
+ if (view->width == width && view->nvisible == nrows)
+ {
+ return;
+ }
+ size_t off = (view->nrows && view->index < view->nrows ? view->rows[view->index]->off : 0);
+ resize(view, width, nrows, off);
+ ensure(view_valid(view));
+}
+
+void view_update(View* view)
+{
+ require(view != NULL);
+ /* refill the view contents to make sure updates are visible */
+ size_t off = view->rows[view->index]->off;
+ clear_rows(view, view->index);
+ for (size_t i = 0; i < view->nvisible; i++)
+ {
+ off = add_row(view, off);
+ }
+ /* sync up the view with the cursor */
+ if (view->sync_flags)
+ {
+ if (view->sync_flags & CENTER)
+ {
+ resize(view, view->width, view->nrows, CSRPOS);
+ view_scroll(view, UP * (view->nvisible/2));
+ }
+ else
+ {
+ Row* lastrow = view->rows[view->nrows-1];
+ size_t last_off = lastrow->cols[lastrow->len-1].off;
+ view_scrollto(view, CSRPOS);
+ if (last_off < CSRPOS)
+ {
+ view_scroll(view, UP * (view->nvisible-1));
+ }
+ }
+ view->sync_flags = 0;
+ }
+ ensure(view_valid(view));
+}
+
+Row* view_getrow(View* view, size_t row)
+{
+ return (row < view->nrows ? view->rows[row] : NULL);
+}
+
+void view_byrune(View* view, int move, bool extsel)
+{
+ require(view != NULL);
+ move_selection(view, extsel, move, BY_RUNE);
+ ensure(view_valid(view));
+}
+
+void view_byword(View* view, int move, bool extsel)
+{
+ require(view != NULL);
+ move_selection(view, extsel, move, BY_WORD);
+ ensure(view_valid(view));
+}
+
+void view_byline(View* view, int move, bool extsel)
+{
+ require(view != NULL);
+ move_selection(view, extsel, move, BY_LINE);
+ ensure(view_valid(view));
+}
+
+static size_t getoffset(View* view, size_t row, size_t col)
+{
+ size_t ret = 0, i = 0, y = 0, idx = view->index + row;
+ if (idx < view->nrows)
+ {
+ Row* selrow = view->rows[idx];
+ for (; i < selrow->len; i++)
+ {
+ y += selrow->cols[i].width;
+ if (col < y)
+ {
+ break;
+ }
+ }
+ ret = selrow->cols[i].off;
+ }
+ return ret;
+}
+
+void view_setcursor(View* view, size_t row, size_t col, bool extsel)
+{
+ buf_selmoveto(BUF, extsel, getoffset(view, row, col));
+ ensure(view_valid(view));
+}
+
+void view_selword(View* view, size_t row, size_t col)
+{
+ if (row != SIZE_MAX && col != SIZE_MAX)
+ {
+ view_setcursor(view, row, col, false);
+ }
+ buf_selword(BUF, risbigword);
+ ensure(view_valid(view));
+}
+
+void view_selprev(View* view)
+{
+ if (!view_selsize(view))
+ {
+ buf_lastins(BUF);
+ }
+ else
+ {
+ buf_selclr(BUF, RIGHT);
+ }
+ ensure(view_valid(view));
+}
+
+void view_select(View* view, size_t row, size_t col)
+{
+ view_setcursor(view, row, col, false);
+ buf_selctx(BUF, risword);
+ ensure(view_valid(view));
+}
+
+size_t view_selsize(View* view)
+{
+ return buf_selsz(BUF);
+}
+
+char* view_fetch(View* view, size_t row, size_t col, bool (*isword)(Rune))
+{
+ char* str = NULL;
+ size_t off = getoffset(view, row, col);
+ if (off != SIZE_MAX)
+ {
+ str = buf_fetch(BUF, isword, off);
+ }
+ ensure(view_valid(view));
+ return str;
+}
+
+bool view_findstr(View* view, int dir, char* str)
+{
+ bool found = buf_findstr(BUF, dir, str);
+ view->sync_flags |= (CURSOR|CENTER);
+ ensure(view_valid(view));
+ return found;
+}
+
+void view_insert(View* view, Rune rune)
+{
+ /* ignore non-printable control characters */
+ if (!isspace(rune) && (rune >= 0 && rune < 0x20))
+ {
+ return;
+ }
+ if (ExpandTabs && rune == '\t')
+ {
+ size_t off = buf_selbeg(BUF);
+ size_t n = (TabWidth - ((off - buf_bol(BUF, off)) % TabWidth));
+ for (; n > 0; n--) buf_putc(BUF, ' ');
+ }
+ else if (CopyIndent && rune == '\n')
+ {
+ size_t off = buf_selbeg(BUF);
+ size_t beg = buf_bol(BUF, off), end = beg;
+ for (; end < buf_end(BUF) && end < off && (' ' == buf_getrat(BUF, end) || '\t' == buf_getrat(BUF, end)); end++)
+ {
+ }
+ char* str = buf_getsat(BUF, beg, end);
+ buf_putc(BUF, '\n');
+ buf_puts(BUF, str);
+ free(str);
+ }
+ else
+ {
+ buf_putc(BUF, rune);
+ }
+ move_to(view, false, CSRPOS);
+ ensure(view_valid(view));
+}
+
+void view_delete(View* view, int dir, bool byword)
+{
+ if (!view_selsize(view))
+ {
+ (byword ? view_byword : view_byrune)(view, dir, true);
+ }
+ buf_del(BUF);
+ move_to(view, false, CSRPOS);
+ ensure(view_valid(view));
+}
+
+void view_jumpto(View* view, bool extsel, size_t off)
+{
+ move_to(view, extsel, off);
+ ensure(view_valid(view));
+}
+
+void view_bol(View* view, bool extsel)
+{
+ /* determine whether we are jumping to start of content or line */
+ Buf* buf = BUF;
+ unsigned bol = buf_bol(buf, CSRPOS);
+ unsigned boi = bol;
+ for (; ' ' == buf_getrat(buf, boi) || '\t' == buf_getrat(buf, boi); boi++);
+ unsigned pos = CSRPOS;
+ pos = (pos == bol || pos > boi ? boi : bol);
+ move_to(view, extsel, pos);
+ ensure(view_valid(view));
+}
+
+void view_eol(View* view, bool extsel)
+{
+ move_to(view, extsel, buf_eol(BUF, CSRPOS));
+ getsel(view)->col = -1; // Peg cursor to line end
+ ensure(view_valid(view));
+}
+
+void view_bof(View* view, bool extsel)
+{
+ view_jumpto(view, extsel, 0);
+ ensure(view_valid(view));
+}
+
+void view_eof(View* view, bool extsel)
+{
+ view_jumpto(view, extsel, buf_end(BUF));
+ ensure(view_valid(view));
+}
+
+void view_setln(View* view, size_t line)
+{
+ view->sync_flags |= CENTER;
+ if (line)
+ {
+ buf_setln(BUF, line);
+ buf_selln(BUF);
+ }
+ ensure(view_valid(view));
+}
+
+static void cursor_sync(View* view)
+{
+ view->sync_flags |= CURSOR;
+ if (!selection_visible(view))
+ {
+ view->sync_flags |= CENTER;
+ }
+}
+
+void view_undo(View* view)
+{
+ buf_undo(BUF);
+ cursor_sync(view);
+ ensure(view_valid(view));
+}
+
+void view_redo(View* view)
+{
+ buf_redo(BUF);
+ cursor_sync(view);
+ ensure(view_valid(view));
+}
+
+void view_paste(View* view, char* str)
+{
+ buf_logstart(BUF);
+ view_putstr(view, str);
+ buf_logstop(BUF);
+ view_selprev(view);
+ ensure(view_valid(view));
+}
+
+void view_putstr(View* view, char* str)
+{
+ buf_puts(BUF, str);
+ ensure(view_valid(view));
+}
+
+void view_putraw(View* view, char* str)
+{
+ void (*fn)(int) = BUF->oninsert;
+ BUF->oninsert = NULL;
+ buf_puts(BUF, str);
+ BUF->oninsert = fn;
+ ensure(view_valid(view));
+}
+
+char* view_getstr(View* view)
+{
+ return buf_gets(BUF);
+}
+
+char* view_getcmd(View* view)
+{
+ if (!view_selsize(view))
+ {
+ buf_selctx(BUF, riscmd);
+ }
+ ensure(view_valid(view));
+ return view_getstr(view);
+}
+
+void view_selctx(View* view)
+{
+ if (!view_selsize(view))
+ {
+ buf_selctx(BUF, risword);
+ }
+ ensure(view_valid(view));
+}
+
+char* view_getctx(View* view)
+{
+ view_selctx(view);
+ ensure(view_valid(view));
+ return view_getstr(view);
+}
+
+static void scroll_up(View* view)
+{
+ if (view->index > 0)
+ {
+ view->index--;
+ }
+ else if (view->rows[0]->off > 0)
+ {
+ resize(view, view->width, view->nvisible, buf_byrune(BUF, view->rows[0]->off, LEFT));
+ }
+}
+
+static void scroll_dn(View* view)
+{
+ if (view->nrows <= 1)
+ {
+ return;
+ }
+ size_t nleft = (view->nrows - view->index);
+ if (nleft <= view->nvisible)
+ {
+ size_t off = view->rows[view->index+1]->off;
+ resize(view, view->width, view->nvisible, off);
+ }
+ else
+ {
+ view->index++;
+ }
+}
+
+void view_scroll(View* view, int move)
+{
+ int dir = (move < 0 ? -1 : 1);
+ move *= dir;
+ for (int i = 0; i < move; i++)
+ {
+ if (dir < 0)
+ {
+ scroll_up(view);
+ }
+ else
+ {
+ scroll_dn(view);
+ }
+ }
+ ensure(view_valid(view));
+}
+
+void view_scrollpage(View* view, int move)
+{
+ move = (move < 0 ? -1 : 1) * view->nrows;
+ view_scroll(view, move);
+ ensure(view_valid(view));
+}
+
+Rune view_getrune(View* view)
+{
+ return buf_getc(BUF);
+}
+
+void view_scrollto(View* view, size_t csr)
+{
+ Row* lastrow = view->rows[view->nrows-1];
+ size_t first = view->rows[view->index]->off;
+ size_t last = lastrow->cols[lastrow->len-1].off;
+ if (csr < first || csr > last)
+ {
+ resize(view, view->width, view->nrows, csr);
+ }
+ ensure(view_valid(view));
+}
+
+void view_selectall(View* view)
+{
+ buf_selall(BUF);
+ view->sync_flags |= CURSOR;
+ ensure(view_valid(view));
+}
+
+void view_selectobj(View* view, bool (*istype)(Rune))
+{
+ buf_selword(BUF, istype);
+ view->sync_flags |= CURSOR;
+ ensure(view_valid(view));
+}
--- /dev/null
+#include <stdc.h>
+#include "io.h"
+
+long writefd(int fd, char* data, long towrite)
+{
+ long nwrite = 0;
+ while (towrite && ((nwrite = write(fd, data, towrite)) > 0))
+ {
+ data += nwrite;
+ towrite -= nwrite;
+ }
+ return nwrite;
+}
--- /dev/null
+#include <stdc.h>
+#include "x11.h"
+#include "utf.h"
+#include "io.h"
+#include <locale.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "config.h"
+
+struct XConf X;
+static Bool Has_Error = False;
+static XErrorEvent Error = {0};
+
+static int onerror(Display* disp, XErrorEvent* ev)
+{
+ (void)disp;
+ Has_Error = True, Error = *ev;
+ return 0;
+}
+
+int x11_init(XConf* x)
+{
+ int ret = -1;
+ signal(SIGPIPE, SIG_IGN); // Ignore the SIGPIPE signal
+ setlocale(LC_CTYPE, "");
+ XSetLocaleModifiers("");
+ /* open the X display and get basic attributes */
+ if ( (x->display = XOpenDisplay(0)) )
+ {
+ x->root = DefaultRootWindow(x->display);
+ XWindowAttributes wa;
+ XGetWindowAttributes(x->display, x->root, &wa);
+ x->visual = wa.visual;
+ x->colormap = wa.colormap;
+ x->screen = DefaultScreen(x->display);
+ x->depth = DefaultDepth(x->display, x->screen);
+ x->state = RUNNING;
+ XSetErrorHandler(onerror);
+ ret = 0;
+ }
+ return ret;
+}
+
+void x11_error_clear(void)
+{
+ Has_Error = False;
+ memset(&Error, 0, sizeof(Error));
+}
+
+XErrorEvent* x11_error_get(void)
+{
+ return (Has_Error ? &Error : NULL);
+}
+
+void x11_mkwin(XConf* x, int width, int height, int evmask)
+{
+ /* create the main window */
+ x->width = width, x->height = height;
+ XSetWindowAttributes attr;
+ attr.background_pixel = Palette[EditBg];
+ attr.bit_gravity = NorthWestGravity;
+ attr.backing_store = WhenMapped;
+ attr.event_mask = evmask
+ | EnterWindowMask
+ | ExposureMask
+ | VisibilityChangeMask
+ | StructureNotifyMask
+ ;
+ x->self = XCreateWindow(
+ x->display, x->root, 0, 0, x->width, x->height, 0, x->depth, InputOutput, x->visual,
+ CWBackPixel | CWBitGravity | CWBackingStore | CWEventMask,
+ &attr);
+
+ /* register interest in the delete window message */
+ Atom wmDeleteMessage = XInternAtom(x->display, "WM_DELETE_WINDOW", False);
+ XSetWMProtocols(x->display, x->self, &wmDeleteMessage, 1);
+}
+
+void x11_mkdialog(XConf* x, int width, int height, int evmask)
+{
+ x11_mkwin(x, width, height, evmask);
+ Atom WindowType = XInternAtom(x->display, "_NET_WM_WINDOW_TYPE", False);
+ Atom DialogType = XInternAtom(x->display, "_NET_WM_WINDOW_TYPE_DIALOG", False);
+ XChangeProperty(x->display, x->self, WindowType, XA_ATOM, 32, PropModeReplace, (unsigned char*)&DialogType, 1);
+}
+
+static void update_state(XConf* x, XEvent* e)
+{
+ if ((e->type == KeyPress) || (e->type == ButtonPress) ||
+ (e->type == ButtonRelease) || (e->type == MotionNotify))
+ {
+ x->now = e->xkey.time;
+ x->mods = e->xkey.state;
+ }
+}
+
+void x11_process_events(XConf* x)
+{
+ int nevents;
+ /* reap zombie background processes */
+ for (int status; waitpid(-1, &status, WNOHANG) > 0;);
+ /* process the entire event queue */
+ while (XEventsQueued(x->display, QueuedAfterReading))
+ {
+ telem_send("EV_READ_QUEUE(pending: %d)\n", XPending(x->display));
+ XGetMotionEvents(x->display, x->self, CurrentTime, CurrentTime, &nevents);
+
+ for (XEvent e; XPending(x->display);)
+ {
+ XNextEvent(x->display, &e);
+ update_state(x, &e);
+ if (!XFilterEvent(&e, None) && x->eventfns[e.type])
+ {
+ telem_send("EV_HANDLE(type: %d)\n", e.type);
+ (x->eventfns[e.type])(x, &e);
+ }
+ else
+ {
+ telem_send("EV_IGNORE(type: %d)\n", e.type);
+ }
+
+ /* log error here */
+ XErrorEvent* err = x11_error_get();
+ if (err)
+ {
+ char msg[8192];
+ XGetErrorText(x->display, err->error_code, msg, sizeof(msg));
+ telem_send("XERROR(%s)\n", msg);
+ x11_error_clear();
+ }
+ }
+ }
+}
+
+void x11_event_loop(XConf* x, void (*redraw)(XConf* x))
+{
+ if (redraw) redraw(x);
+ for (XEvent e; x->state != QUITTING;)
+ {
+ XNextEvent(x->display, &e);
+ if (x->eventfns[e.type])
+ {
+ x->eventfns[e.type](x, &e);
+ }
+ for (int status; waitpid(-1, &status, WNOHANG) > 0;);
+ if (redraw)
+ {
+ redraw(x);
+ }
+ }
+}
+
+int x11_getptr(XConf* x, int* ptrx, int* ptry)
+{
+ Window root = 0, child = 0;
+ int winx = 0, winy = 0, mask = 0;
+ return XQueryPointer(x->display, x->self, &root, &child, ptrx, ptry, &winx, &winy, (unsigned int*)&mask);
+}
+
+static uint32_t special_keys(uint32_t key)
+{
+ static uint32_t keymap[256] = {
+ /* Function keys */
+ [0xBE] = KEY_F1, [0xBF] = KEY_F2, [0xC0] = KEY_F3, [0xC1] = KEY_F4,
+ [0xC2] = KEY_F5, [0xC3] = KEY_F6, [0xC4] = KEY_F7, [0xC5] = KEY_F8,
+ [0xC6] = KEY_F9, [0xC7] = KEY_F10, [0xC8] = KEY_F11, [0xC9] = KEY_F12,
+ /* Navigation keys */
+ [0x50] = KEY_HOME, [0x51] = KEY_LEFT, [0x52] = KEY_UP,
+ [0x53] = KEY_RIGHT, [0x54] = KEY_DOWN, [0x55] = KEY_PGUP,
+ [0x56] = KEY_PGDN, [0x57] = KEY_END,
+ /* Control keys */
+ [0x08] = '\b', [0x09] = '\t', [0x0d] = '\n', [0x0a] = '\n',
+ /* Miscellaneous */
+ [0x63] = KEY_INSERT, [0x1B] = KEY_ESCAPE, [0xFF] = KEY_DELETE,
+ };
+ /* lookup the key by keysym */
+ key = ((key & 0xFF00) == 0xFF00 ? keymap[key & 0xFF] : key);
+ return (!key ? RUNE_ERR : key);
+}
+
+uint32_t x11_getkey(XConf* x, XEvent* e)
+{
+ uint32_t ret;
+ char buf[8];
+ KeySym key;
+ Status status;
+
+ /* Read the key string */
+ if (x->xic)
+ {
+ Xutf8LookupString(x->xic, &(e->xkey), buf, sizeof(buf), &key, &status);
+ }
+ else
+ {
+ XLookupString(&(e->xkey), buf, sizeof(buf), &key, 0);
+ }
+
+ /* if it's ascii, just return it */
+ if (key >= 0x20 && key <= 0x7F)
+ {
+ ret = (uint32_t)key;
+ }
+ else
+ {
+ ret = special_keys(key);
+ }
+ return ret;
+}
+
+uint32_t x11_process_key(XConf* x, XEvent* e, KeyBinding* keys)
+{
+ uint32_t key = x11_getkey(x, e);
+ if (key != RUNE_ERR)
+ {
+ int mods = e->xkey.state & (ModCtrl|ModShift|ModAlt);
+ int32_t mkey = tolower(key);
+ for (KeyBinding* bind = keys; bind && bind->key; bind++)
+ {
+ bool match = (mkey == (int32_t)bind->key);
+ bool exact = (bind->mods == mods);
+ bool any = (bind->mods == ModAny);
+ bool oneplus = ((bind->mods == ModOneOrMore) && (mods & ModOneOrMore));
+ if (match && (exact || oneplus || any))
+ {
+ bind->fn(bind->arg);
+ key = RUNE_ERR;
+ break;
+ }
+ }
+ }
+ /* fallback to just inserting the rune if it doesn't fall in the private use area.
+ * the private use area is used to encode special keys */
+ return (key < 0xE000 || key > 0xF8FF ? key : RUNE_ERR);
+}
+
+int x11_seturgent(XConf* x, int urgent)
+{
+ int status = 0;
+ XWMHints hints = {0}, *prevhints = XGetWMHints(x->display, x->self);
+ if (prevhints)
+ {
+ hints = *prevhints;
+ XFree(prevhints);
+ }
+ if (urgent)
+ {
+ hints.flags |= XUrgencyHint;
+ }
+ else
+ {
+ hints.flags &= ~XUrgencyHint;
+ }
+ status = XSetWMHints(x->display, x->self, &hints);
+ telem_send("URGENT(%d %d)\n", urgent, status);
+ return status;
+}
--- /dev/null
+/** @file */
+AUTOLIB(X11)
+AUTOLIB(Xinerama)
+AUTOLIB(Xft)
+AUTOLIB(fontconfig)
+
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xft/Xft.h>
+
+enum {
+ RUNNING,
+ SERVE_SEL,
+ QUITTING
+};
+
+typedef struct XConf {
+ Bool error;
+ int state, fd, screen, width, height, mods;
+ Window root;
+ Display* display;
+ Visual* visual;
+ Colormap colormap;
+ unsigned depth;
+ Window self;
+ XftDraw* xft;
+ XftFont *tagfont, *font;
+ Pixmap pixmap;
+ XIC xic;
+ XIM xim;
+ GC gc;
+ void (*eventfns[LASTEvent])(struct XConf*, XEvent*);
+ Time now;
+} XConf;
+
+/* Selection identifiers */
+enum {
+ PRIMARY = 0,
+ CLIPBOARD = 1
+};
+
+/* key definitions */
+enum Keys {
+ /* Define some runes in the private use area of unicode to represent
+ * special keys */
+ KEY_F1 = (0xE000+0),
+ KEY_F2 = (0xE000+1),
+ KEY_F3 = (0xE000+2),
+ KEY_F4 = (0xE000+3),
+ KEY_F5 = (0xE000+4),
+ KEY_F6 = (0xE000+5),
+ KEY_F7 = (0xE000+6),
+ KEY_F8 = (0xE000+7),
+ KEY_F9 = (0xE000+8),
+ KEY_F10 = (0xE000+9),
+ KEY_F11 = (0xE000+10),
+ KEY_F12 = (0xE000+11),
+ KEY_INSERT = (0xE000+12),
+ KEY_DELETE = (0xE000+13),
+ KEY_HOME = (0xE000+14),
+ KEY_END = (0xE000+15),
+ KEY_PGUP = (0xE000+16),
+ KEY_PGDN = (0xE000+17),
+ KEY_UP = (0xE000+18),
+ KEY_DOWN = (0xE000+19),
+ KEY_RIGHT = (0xE000+20),
+ KEY_LEFT = (0xE000+21),
+
+ /* ASCII Control Characters */
+ KEY_CTRL_TILDE = 0x00,
+ KEY_CTRL_2 = 0x00,
+ KEY_CTRL_A = 0x01,
+ KEY_CTRL_B = 0x02,
+ KEY_CTRL_C = 0x03,
+ KEY_CTRL_D = 0x04,
+ KEY_CTRL_E = 0x05,
+ KEY_CTRL_F = 0x06,
+ KEY_CTRL_G = 0x07,
+ KEY_BACKSPACE = 0x08,
+ KEY_CTRL_H = 0x08,
+ KEY_TAB = 0x09,
+ KEY_CTRL_I = 0x09,
+ KEY_CTRL_J = 0x0A,
+ KEY_CTRL_K = 0x0B,
+ KEY_CTRL_L = 0x0C,
+ KEY_ENTER = 0x0D,
+ KEY_CTRL_M = 0x0D,
+ KEY_CTRL_N = 0x0E,
+ KEY_CTRL_O = 0x0F,
+ KEY_CTRL_P = 0x10,
+ KEY_CTRL_Q = 0x11,
+ KEY_CTRL_R = 0x12,
+ KEY_CTRL_S = 0x13,
+ KEY_CTRL_T = 0x14,
+ KEY_CTRL_U = 0x15,
+ KEY_CTRL_V = 0x16,
+ KEY_CTRL_W = 0x17,
+ KEY_CTRL_X = 0x18,
+ KEY_CTRL_Y = 0x19,
+ KEY_CTRL_Z = 0x1A,
+ KEY_ESCAPE = 0x1B,
+ KEY_CTRL_LSQ_BRACKET = 0x1B,
+ KEY_CTRL_3 = 0x1B,
+ KEY_CTRL_4 = 0x1C,
+ KEY_CTRL_BACKSLASH = 0x1C,
+ KEY_CTRL_5 = 0x1D,
+ KEY_CTRL_RSQ_BRACKET = 0x1D,
+ KEY_CTRL_6 = 0x1E,
+ KEY_CTRL_7 = 0x1F,
+ KEY_CTRL_SLASH = 0x1F,
+ KEY_CTRL_UNDERSCORE = 0x1F,
+};
+
+/* Key modifier masks */
+enum {
+ ModNone = 0,
+ ModShift = (1 << 0),
+ ModCapsLock = (1 << 1),
+ ModCtrl = (1 << 2),
+ ModAlt = (1 << 3),
+ ModNumLock = (1 << 4),
+ ModScrollLock = (1 << 5),
+ ModWindows = (1 << 6),
+ ModOneOrMore = (ModCtrl|ModAlt),
+ ModAny = -1
+};
+
+typedef struct {
+ int mods;
+ uint32_t key;
+ void (*fn)(char*);
+ char* arg;
+} KeyBinding;
+
+extern struct XConf X;
+
+int x11_init(XConf* x);
+void x11_error_clear(void);
+XErrorEvent* x11_error_get(void);
+void x11_resize(XConf* x, XEvent* e);
+
+void x11_mkwin(XConf* x, int width, int height, int evmask);
+void x11_mkdialog(XConf* x, int width, int height, int evmask);
+void x11_process_events(XConf* x);
+void x11_event_loop(XConf* x, void (*redraw)(XConf* x));
+int x11_getptr(XConf* x, int* ptrx, int* ptry);
+uint32_t x11_getkey(XConf* x, XEvent* e);
+uint32_t x11_process_key(XConf* x, XEvent* e, KeyBinding* keys);
+int x11_seturgent(XConf* x, int urgent);
+
+void x11_centerwin(XConf* x);
+void x11_init_gc(XConf* x);
+void x11_show(XConf* x);
+XftFont* x11_font_load(XConf* x, char* name);
+void xftcolor(XConf* x, XftColor* xc, unsigned int c);
+void x11_draw_rect(XConf* x, int color, int px, int py, int width, int height);
+void x11_draw_glyphs(XConf* x, int color, XftFont* font, XftGlyphSpec* specs, long nspecs);
+void x11_flip(XConf* x);
+void x11_draw_string(XConf* x, XftFont* font, int posx, int posy, int color, char* str);
+
+void x11_sel_init(XConf* x);
+int x11_sel_get(XConf* x, int selid, void(*cbfn)(char*));
+int x11_sel_set(XConf* x, int selid, char* str);
+void x11_sel_quit(XConf* x, XEvent* e);
+int x11_sel_ready(XConf* x);
+void x11_sel_serve(XConf* x);
--- /dev/null
+#include <stdc.h>
+#include "x11.h"
+#include "io.h"
+#include <X11/extensions/Xinerama.h>
+
+void x11_resize(XConf* x, XEvent* e)
+{
+ telem_send("XRESIZE(w: %d, h: %d)\n", e->xconfigure.width, e->xconfigure.height);
+ if (e->xconfigure.width != x->width || e->xconfigure.height != x->height)
+ {
+ x->width = e->xconfigure.width;
+ x->height = e->xconfigure.height;
+ XFreePixmap(x->display, x->pixmap);
+ x->pixmap = XCreatePixmap(x->display, x->self, x->width, x->height, x->depth);
+ XftDrawChange(x->xft, x->pixmap);
+ }
+}
+
+void x11_mapnotify(XConf* x, XEvent* e)
+{
+ (void)x;
+ telem_send("XMAPNOTIFY(0x%x)\n", e->xmap.window);
+}
+
+void x11_enternotify(XConf* x, XEvent* e)
+{
+ telem_send("XENTERNOTIFY(0x%x)\n", e->xmap.window);
+ x11_seturgent(x, 0);
+}
+
+void x11_init_gc(XConf* x)
+{
+ /* set input methods */
+ if ((x->xim = XOpenIM(x->display, 0, 0, 0)))
+ x->xic = XCreateIC(x->xim, XNInputStyle, XIMPreeditNothing|XIMStatusNothing, XNClientWindow, x->self, XNFocusWindow, x->self, NULL);
+ /* initialize pixmap and drawing context */
+ x->pixmap = XCreatePixmap(x->display, x->self, x->width, x->height, x->depth);
+ x->xft = XftDrawCreate(x->display, x->pixmap, x->visual, x->colormap);
+ /* initialize the graphics context */
+ XGCValues gcv;
+ gcv.foreground = WhitePixel(x->display, x->screen);
+ gcv.graphics_exposures = False;
+ x->gc = XCreateGC(x->display, x->self, GCGraphicsExposures, &gcv);
+ x->eventfns[ConfigureNotify] = x11_resize;
+ x->eventfns[MapNotify] = x11_mapnotify;
+ x->eventfns[EnterNotify] = x11_enternotify;
+}
+
+void x11_centerwin(XConf* x)
+{
+ int ptrx = 0, ptry = 0;
+ (void)x11_getptr(x, &ptrx, &ptry);
+ int nscreens = 0;
+ XineramaScreenInfo* p_screens = XineramaQueryScreens(x->display, &nscreens);
+ for (int i = 0; i < nscreens; i++)
+ {
+ int minx = p_screens[i].x_org,
+ maxx = p_screens[i].x_org + p_screens[i].width,
+ miny = p_screens[i].y_org,
+ maxy = p_screens[i].y_org + p_screens[i].height;
+ if (minx <= ptrx && ptrx <= maxx && miny <= ptry && ptry <= maxy)
+ {
+ XMoveWindow(x->display, x->self,
+ minx + p_screens[i].width/2 - x->width/2,
+ miny + p_screens[i].height/2 - x->height/2);
+ break;
+ }
+ }
+ if (p_screens)
+ {
+ XFree(p_screens);
+ }
+}
+
+void x11_show(XConf* x)
+{
+ /* simulate an initial resize and map the window */
+ XConfigureEvent ce;
+ ce.type = ConfigureNotify;
+ ce.width = x->width;
+ ce.height = x->height;
+ XSendEvent(x->display, x->self, False, StructureNotifyMask, (XEvent *)&ce);
+ XMapWindow(x->display, x->self);
+ XSync(x->display, False);
+
+ /* Waiting for window mapping */
+ XEvent ev;
+ do
+ {
+ XNextEvent(x->display, &ev);
+ if (XFilterEvent(&ev, None))
+ {
+ continue;
+ }
+ if (ev.type == ConfigureNotify)
+ {
+ x11_resize(x, &ev);
+ }
+ }
+ while (ev.type != MapNotify);
+// XWarpPointer(x->display, None, x->self, 0, 0, x->width, x->height, x->width/2, x->height/2);
+}
+
+XftFont* x11_font_load(XConf* x, char* name)
+{
+ XftFont* font = NULL;
+ if (FcInit())
+ {
+ FcPattern* pattern = FcNameParse((FcChar8 *)name);
+ if (pattern)
+ {
+ /* load the base font */
+ FcResult result;
+ FcPattern* match = XftFontMatch(x->display, x->screen, pattern, &result);
+ if (match)
+ {
+ font = XftFontOpenPattern(x->display, match);
+ }
+ FcPatternDestroy(pattern);
+ FcPatternDestroy(match);
+ }
+ }
+// printf("font: '%s'\n", name);
+ return font;
+}
+
+void xftcolor(XConf* x, XftColor* xc, unsigned int c)
+{
+ #define COLOR(c) ((c) | ((c) >> 8))
+ xc->color.alpha = 0xFFFF;
+ xc->color.red = COLOR((c & 0x00FF0000) >> 8);
+ xc->color.green = COLOR((c & 0x0000FF00));
+ xc->color.blue = COLOR((c & 0x000000FF) << 8);
+ XftColorAllocValue(x->display, x->visual, x->colormap, &(xc->color), xc);
+}
+
+void x11_draw_rect(XConf* x, int color, int px, int py, int width, int height)
+{
+ XftColor clr;
+ xftcolor(x, &clr, color);
+ XftDrawRect(x->xft, &clr, px, py, width, height);
+ XftColorFree(x->display, x->visual, x->colormap, &clr);
+}
+
+void x11_draw_glyphs(XConf* x, int color, XftFont* font, XftGlyphSpec* specs, long nspecs)
+{
+ XftColor clr;
+ xftcolor(x, &clr, color);
+ XftDrawGlyphSpec(x->xft, &clr, font, specs, nspecs);
+ XftColorFree(x->display, x->visual, x->colormap, &clr);
+}
+
+void x11_flip(XConf* x)
+{
+ XCopyArea(x->display, x->pixmap, x->self, x->gc, 0, 0, x->width, x->height, 0, 0);
+ XFlush(x->display);
+}
+
+void x11_draw_string(XConf* x, XftFont* font, int posx, int posy, int color, char* str)
+{
+ XftColor clr;
+ xftcolor(x, &clr, color);
+ XftDrawStringUtf8(x->xft, &clr, font, posx, posy, (const FcChar8*)str, strlen(str));
+ XftColorFree(x->display, x->visual, x->colormap, &clr);
+}
--- /dev/null
+#include <stdc.h>
+#include "x11.h"
+
+struct XSel {
+ char* name;
+ Atom atom;
+ char* text;
+ void (*callback)(char*);
+};
+
+static Atom SelTarget;
+static struct XSel Selections[] = {
+ { .name = "PRIMARY" },
+ { .name = "CLIPBOARD" },
+};
+
+static struct XSel* selfetch(Atom atom)
+{
+ struct XSel* ret = NULL;
+ for (unsigned int i = 0; i < (sizeof(Selections) / sizeof(Selections[0])); i++)
+ {
+ if (atom == Selections[i].atom)
+ {
+ ret = &Selections[i];
+ break;
+ }
+ }
+ return ret;
+}
+
+static void xselclear(XConf* x, XEvent* e)
+{
+ (void)x;
+ struct XSel* sel = selfetch(e->xselectionclear.selection);
+ if (!sel) return;
+ free(sel->text);
+ sel->text = NULL;
+}
+
+static void xselnotify(XConf* x, XEvent* e)
+{
+ /* bail if the selection cannot be converted */
+ if (e->xselection.property == None)
+ return;
+ struct XSel* sel = selfetch( e->xselection.selection );
+ Atom rtype;
+ unsigned long format = 0, nitems = 0, nleft = 0;
+ unsigned char* propdata = NULL;
+ XGetWindowProperty(x->display, x->self, sel->atom, 0, -1, False, AnyPropertyType, &rtype,
+ (int*)&format, &nitems, &nleft, &propdata);
+ if (e->xselection.target == SelTarget)
+ {
+ void(*cbfn)(char*) = sel->callback;
+ sel->callback = NULL;
+ cbfn((char*)propdata);
+ }
+ /* cleanup */
+ if (propdata) XFree(propdata);
+}
+
+static void xselrequest(XConf* x, XEvent* e)
+{
+ XEvent s;
+ struct XSel* sel = selfetch( e->xselectionrequest.selection );
+ s.xselection.type = SelectionNotify;
+ s.xselection.property = e->xselectionrequest.property;
+ s.xselection.requestor = e->xselectionrequest.requestor;
+ s.xselection.selection = e->xselectionrequest.selection;
+ s.xselection.target = e->xselectionrequest.target;
+ s.xselection.time = e->xselectionrequest.time;
+ Atom target = e->xselectionrequest.target;
+ Atom xatargets = XInternAtom(x->display, "TARGETS", 0);
+ Atom xastring = XInternAtom(x->display, "STRING", 0);
+ if (target == xatargets)
+ {
+ /* respond with the supported type */
+ XChangeProperty(
+ x->display,
+ s.xselection.requestor,
+ s.xselection.property,
+ XA_ATOM, 32, PropModeReplace,
+ (unsigned char*)&SelTarget, 1);
+ }
+ else if (target == SelTarget || target == xastring)
+ {
+ XChangeProperty(
+ x->display,
+ s.xselection.requestor,
+ s.xselection.property,
+ SelTarget, 8, PropModeReplace,
+ (unsigned char*)sel->text, strlen(sel->text));
+ }
+ XSendEvent(x->display, s.xselection.requestor, True, 0, &s);
+}
+
+void x11_sel_init(XConf* x)
+{
+ /* initialize selection atoms */
+ for (unsigned int i = 0; i < (sizeof(Selections) / sizeof(Selections[0])); i++)
+ {
+ Selections[i].atom = XInternAtom(x->display, Selections[i].name, 0);
+ }
+ SelTarget = XInternAtom(x->display, "UTF8_STRING", 0);
+ if (SelTarget == None)
+ {
+ SelTarget = XInternAtom(x->display, "STRING", 0);
+ }
+ /* setup event handlers */
+ x->eventfns[SelectionClear] = xselclear;
+ x->eventfns[SelectionNotify] = xselnotify;
+ x->eventfns[SelectionRequest] = xselrequest;
+}
+
+int x11_sel_get(XConf* x, int selid, void(*cbfn)(char*))
+{
+ int ret = 0;
+ struct XSel* sel = &(Selections[selid]);
+ if (!sel->callback)
+ {
+ Window owner = XGetSelectionOwner(x->display, sel->atom);
+ if (owner == x->self)
+ {
+ cbfn(sel->text);
+ }
+ else if (owner != None)
+ {
+ sel->callback = cbfn;
+ XConvertSelection(x->display, sel->atom, SelTarget, sel->atom, x->self, CurrentTime);
+ }
+ ret = 1;
+ }
+ return ret;
+}
+
+int x11_sel_set(XConf* x, int selid, char* str)
+{
+ int ret;
+ struct XSel* sel = &(Selections[selid]);
+ if (!sel || !str || !*str)
+ {
+ free(str);
+ ret = 0;
+ }
+ else
+ {
+ sel->text = str;
+ XSetSelectionOwner(x->display, sel->atom, x->self, CurrentTime);
+ ret = 1;
+ }
+ return ret;
+}
+
+void x11_sel_quit(XConf* x, XEvent* e)
+{
+ xselclear(x, e);
+ if (!Selections[PRIMARY].text && !Selections[CLIPBOARD].text)
+ {
+ x->state = QUITTING;
+ }
+}
+
+int x11_sel_ready(XConf* x)
+{
+ (void)x;
+ return (Selections[PRIMARY].text || Selections[CLIPBOARD].text);
+}
+
+void x11_sel_serve(XConf* x)
+{
+ X.eventfns[SelectionClear] = x11_sel_quit;
+ X.self = XCreateSimpleWindow(X.display, X.root, 0, 0, 1, 1, 0, 0, 0);
+ if (Selections[PRIMARY].text)
+ {
+ XSetSelectionOwner(x->display, Selections[PRIMARY].atom, x->self, CurrentTime);
+
+ }
+ if (Selections[CLIPBOARD].text)
+ {
+ XSetSelectionOwner(x->display, Selections[CLIPBOARD].atom, x->self, CurrentTime);
+ }
+ if (fork()) exit(0); /* fork into background */
+}
+
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+#include "io.h"
+#include <sys/socket.h>
+#ifdef __linux__
+ #include <pty.h>
+#else
+ #include <util.h>
+#endif
+#include "tide.h"
+
+#define BUFFERSZ 16384
+
+static View* EditView = NULL;
+static int Pty_Fd = -1;
+static bool DoScroll = 0;
+static char* PromptStr = NULL;
+static char ReadBuf[BUFFERSZ+1] = {0};
+static char ArgsBuf[BUFFERSZ+1] = {0};
+static char InputBuf[BUFFERSZ+1] = {0};
+static ssize_t ArgsPos = 0;
+static ssize_t InputPos = 0;
+static ssize_t IgnoreCount = 0;
+static enum {
+ READ_ECHO = 0,
+ READ_CHAR,
+ READ_ESC,
+ READ_OSC,
+ READ_OSI,
+} State = READ_CHAR;
+
+static void read_echo(char c)
+{
+ (void)c;
+ IgnoreCount--;
+ if (IgnoreCount <= 0)
+ {
+ State = READ_CHAR;
+ }
+}
+
+static void read_char(char c)
+{
+ if (c == '\033')
+ {
+ State = READ_ESC;
+ }
+ else
+ {
+ InputBuf[InputPos++] = c;
+ InputBuf[InputPos] = '\0';
+ }
+}
+
+static void read_esc(char c)
+{
+ ArgsBuf[(ArgsPos = 0)] = '\0';
+ if (c == '[')
+ {
+ State = READ_OSI;
+ }
+ else if (c == ']')
+ {
+ State = READ_OSC;
+ }
+ else
+ {
+ State = READ_CHAR;
+ }
+}
+
+static void read_osc(char c)
+{
+ if (c == '\a')
+ {
+ State = READ_CHAR;
+ if (ArgsBuf[0] == '7' && ArgsBuf[1] == ';')
+ {
+ chdir(&ArgsBuf[2]);
+ }
+ else if (ArgsBuf[0] == '0' && ArgsBuf[1] == ';')
+ {
+ free(PromptStr);
+ PromptStr = strdup(&ArgsBuf[2]);
+ }
+ }
+ else
+ {
+ ArgsBuf[ArgsPos++] = c;
+ ArgsBuf[ArgsPos] = '\0';
+ }
+}
+
+static void read_osi(char c)
+{
+ if (isalpha(c))
+ {
+ State = READ_CHAR;
+ }
+}
+
+static void (*Handlers[])(char c) = {
+ [READ_ECHO] = read_echo,
+ [READ_CHAR] = read_char,
+ [READ_ESC] = read_esc,
+ [READ_OSC] = read_osc,
+ [READ_OSI] = read_osi,
+};
+
+static void putb(int byte)
+{
+ struct termios tio = {0};
+ tcgetattr(Pty_Fd, &tio);
+
+ if ((tio.c_lflag & ICANON) == ICANON)
+ {
+ char b = byte;
+ write(Pty_Fd, &b, 1);
+ if (byte == '\n')
+ {
+ *((char*)(EditView->buffer.contents.gapstart-1)) = ' ';
+ EditView->buffer.point.beg = EditView->buffer.point.end;
+ }
+ else if ((tio.c_lflag & ECHO) != ECHO)
+ {
+ *((char*)(EditView->buffer.contents.gapstart-1)) = '*';
+ }
+ else
+ {
+ read(Pty_Fd, &b, 1);
+ }
+ }
+ else if (byte == '\n' && (EditView->buffer.selection.end == EditView->buffer.point.end))
+ {
+ /* get the input string and update the point */
+ char* str = buf_getsat(&(EditView->buffer), EditView->buffer.point.beg, EditView->buffer.point.end);
+ size_t slen = strlen(str);
+ EditView->buffer.point.beg = EditView->buffer.point.end;
+
+ /* write the data and read back to discard the echoed chars */
+// printf("write: '%s'\n", str);
+ writefd(Pty_Fd, str, slen);
+ State = READ_ECHO;
+ IgnoreCount = slen+1;
+ InputBuf[(InputPos = 0)] = '\0';
+
+ free(str);
+ }
+}
+
+static void writedata(char* buf, long n)
+{
+ InputBuf[0] = '\0';
+ InputPos = 0;
+// printf("read: '%s'\n", ReadBuf);
+ for (long i = 0; i < n; i++)
+ {
+ Handlers[State](buf[i]);
+ }
+ view_putraw(EditView, InputBuf);
+ if (DoScroll)
+ {
+ EditView->sync_flags |= CURSOR;
+ }
+}
+
+static void xpty_read(Job* job)
+{
+ long nread = read(job->fd, ReadBuf, sizeof(ReadBuf)-1);
+ if (nread <= 0)
+ {
+ job->readfn = NULL;
+ Pty_Fd = -1;
+ EditView->buffer.oninsert = NULL;
+ EditView = NULL;
+ }
+ else if (nread > 0)
+ {
+ ReadBuf[nread] = '\0';
+
+ /* swap the point and selection to perform the insert */
+ size_t start = EditView->buffer.point.beg;
+ Sel sel = {
+ .col = EditView->buffer.selection.col,
+ .beg = buf_selbeg(&(EditView->buffer)),
+ .end = buf_selend(&(EditView->buffer))
+ };
+ EditView->buffer.selection.beg = EditView->buffer.point.beg;
+ EditView->buffer.selection.end = EditView->buffer.point.beg;
+ EditView->buffer.point = sel;
+
+ /* insert the text */
+ writedata(ReadBuf, nread);
+
+ /* adjust the original selection and swap it back */
+ nread = (EditView->buffer.point.end - start);
+ if (start <= sel.beg)
+ {
+ sel.beg += nread;
+ }
+ if (start <= sel.end)
+ {
+ sel.end += nread;
+ }
+ Sel point = EditView->buffer.selection;
+ EditView->buffer.selection = sel;
+ EditView->buffer.point = point;
+ }
+}
+
+bool xpty_active(void)
+{
+ return (Pty_Fd >= 0);
+}
+
+void xpty_togglescroll(void)
+{
+ DoScroll = !DoScroll;
+}
+
+int xpty_run(View* view, char** cmd)
+{
+ (void)view;
+ int fd = -1;
+ if (Pty_Fd < 0)
+ {
+ pid_t pid = forkpty(&fd, NULL, NULL, NULL);
+ if (pid == 0)
+ {
+ exit(execvp(cmd[0], cmd));
+ }
+ else if (pid < 0 )
+ {
+ fd = -1;
+ }
+ else
+ {
+ Pty_Fd = fd;
+ EditView = view;
+ if (view_selsize(view))
+ {
+ view_delete(view, LEFT, false);
+ }
+ view->buffer.oninsert = putb;
+ view->buffer.point.beg = view->buffer.selection.end;
+ view->buffer.point.end = view->buffer.selection.end;
+ job_spawn(Pty_Fd, xpty_read, NULL, NULL);
+ }
+ }
+ return fd;
+}
+
+void xpty_send(char* cmd)
+{
+ if (EditView)
+ {
+ EditView->buffer.selection.beg = EditView->buffer.point.end;
+ EditView->buffer.selection.end = EditView->buffer.point.end;
+ if (PromptStr)
+ {
+ size_t plen = strlen(PromptStr);
+ if (!strncmp(PromptStr, cmd, plen))
+ {
+ cmd += strlen(PromptStr);
+ }
+ }
+ view_putstr(EditView, cmd);
+ if (*cmd && cmd[strlen(cmd)-1] != '\n')
+ {
+ view_insert(EditView, '\n');
+ }
+ }
+}
+
+void xpty_rawsend(char* str)
+{
+ (void)write(Pty_Fd, str, strlen(str));
+}
+++ /dev/null
-int main(int argc, char** argv)
-{
- (void)argc;
- (void)argv;
- return 0;
-}
\ No newline at end of file
--- /dev/null
+/** @file */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-variable"
+
+enum { Off = 0, On = 1 };
+
+enum { /* Color Names */
+ Red, Purple, Orange,
+ EditBg, EditFg, EditSel,
+ TagsBg, TagsFg, TagsSel,
+ ScrollBg, ScrollFg,
+ VerBdr, HorBdr, Point,
+ ClrCount
+};
+
+#define CMD_TIDE "!tide"
+#define CMD_PICKFILE "!pickfile ."
+#define CMD_COMPLETE "picktag print tags"
+#define CMD_FCOMPLETE "fcomplete"
+#define CMD_GOTO_TAG "!picktag fetch tags"
+
+/* Command used to open file in editor at a given line */
+static char* EditCmd[] = { "tide", "-l", 0, 0, 0 };
+
+/* The shell: Filled in with $SHELL. Used to execute commands */
+static char* ShellCmd[] = { 0, "-c", 0, 0 };
+
+/* Sed command used to execute commands marked with ':' sigil */
+static char* SedCmd[] = { "sed", "-Ee", 0, 0 };
+
+/* Command used to fetch some text based on a set of rules */
+static char* FetchCmd[] = { "fetch", 0, 0 };
+
+/* Default tag region text in editor windows */
+static char* TagString = "Del Put Get | Font Tabs Eol | x+ w+ !st !term | Find ";
+
+/* List of font patterns available to the editor */
+static char* Fonts[2] = {
+ "Verdana:size=12",
+ "Liberation Mono:size=12"
+};
+
+#ifdef INCLUDE_DEFS
+/* Integer config options */
+int WinWidth = 640; /* default window width */
+int WinHeight = 480; /* default window height */
+int ScrollWidth = 8; /* width in pixels of the scrollbar */
+int Timeout = 100; /* number of milliseconds to wait before poll() times out */
+int TabWidth = 4; /* number of spaces tab characters will be expanded to */
+int ScrollBy = 1; /* number of lines to scroll by on mouse wheel events */
+int ClickTime = 500; /* number of milliseconds after a click wehre multi-clicks will be recognized */
+int CopyIndent = On; /* whether indentation should be copied from previous line or not */
+int TrimOnSave = On; /* whether trailing whitespace should be removed on save or not */
+int ExpandTabs = On; /* whether tab characters should be expanded to spaces or not */
+int DosLineFeed = Off; /* use \r\n line endings by default */
+int Margin = 50;
+#else
+extern int WinWidth, WinHeight, ScrollWidth, Timeout, TabWidth, ScrollBy,
+ ClickTime, CopyIndent, TrimOnSave, ExpandTabs, DosLineFeed, Margin;
+#endif
+
+static int Palette[ClrCount] = {
+#if 0 /* Original Acme Colors */
+ [EditBg] = 0xFFFFEA, /* Edit region background */
+ [EditFg] = 0x000000, /* Edit region text */
+ [EditSel] = 0xEEEE9E, /* Edit region selection */
+ [TagsBg] = 0xEAFFFF, /* Tags region background */
+ [TagsFg] = 0x000000, /* Tags region text */
+ [TagsSel] = 0x9EEEEE, /* Tags region selection */
+ [ScrollBg] = 0x99994C, /* Scroll region background */
+ [ScrollFg] = 0xFFFFEA, /* Scroll region foreground */
+ [VerBdr] = 0x99994C, /* Vertical border */
+ [HorBdr] = 0x000000, /* Horizontal border */
+ [Point] = 0xEFEFDA, /* Point background */
+ [Purple] = 0x6666CC, /* Purple */
+ [Red] = 0xCC0000, /* Red */
+ [Orange] = 0xFF7700, /* Orange */
+#else
+ [EditBg] = 0xF5F5F0, /* Edit region background */
+ [EditFg] = 0x222222, /* Edit region text */
+ [EditSel] = 0xAACCEE, /* Edit region selection */
+
+ [TagsBg] = 0xF5F5F0, /* Tags region background */
+ [TagsFg] = 0x222222, /* Tags region text */
+ [TagsSel] = 0xAACCEE, /* Tags region selection */
+
+ [ScrollBg] = 0x959590, /* Scroll region background */
+ [ScrollFg] = 0xF5F5F0, /* Scroll region foreground */
+
+ [VerBdr] = 0x959590, /* Vertical border */
+ [HorBdr] = 0x222222, /* Horizontal border */
+
+ [Point] = 0xD5D5D0, /* Point background */
+ [Purple] = 0x6666CC, /* Purple */
+ [Red] = 0xCC0000, /* Red */
+ [Orange] = 0xFF7700, /* Orange */
+#endif
+};
+
+#pragma GCC diagnostic pop
--- /dev/null
+/**
+ @file
+ Helper functions for reading and writing file descriptors as well as outputting telemetry data.
+*/
+void telem_send(char* fmt, ...);
+long writefd(int fd, char* data, long towrite);
+long readfd(int fd, char* data, long toread);
+char* readfile(char* path);
+char* abspath(char* path);
--- /dev/null
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xft/Xft.h>
+#include <stdc.h>
+#include <vec.h>
+#include "x11.h"
+
+#define INCLUDE_DEFS
+#include "config.h"
+
+static void xkeypress(XConf* x, XEvent* e);
+static void xbtnpress(XConf* x, XEvent* e);
+static void redraw(XConf* x);
+static void xinit(XConf* x);
+
+typedef struct {
+ float score;
+ char* string;
+ size_t length;
+ size_t match_start;
+ size_t match_end;
+} Choice;
+
+char Query[8192] = {0};
+size_t QueryIdx = 0;
+vec_t Choices = {0};
+size_t ChoiceIdx = 0;
+size_t Offset = 0;
+
+static int peekc(FILE* in)
+{
+ int c = fgetc(in);
+ ungetc(c, in);
+ return c;
+}
+
+static char* rdline(FILE* fin, size_t* len)
+{
+ if (feof(fin) || ferror(fin))
+ return NULL;
+ size_t size = 256;
+ size_t index = 0;
+ char* str = (char*)calloc(size,1);
+ while (!feof(stdin))
+ {
+ if (index+2 >= size)
+ {
+ size = size << 1;
+ str = realloc(str, size);
+ }
+ char ch = fgetc(fin);
+ if (ch == '\r') continue;
+ if (ch == EOF || ch == '\n') break;
+ str[index++] = ch;
+ str[index] = '\0';
+ }
+ if (len) *len = index;
+ return str;
+}
+
+static int by_score(const void* a, const void* b)
+{
+ Choice* ca = ((Choice*)a);
+ Choice* cb = ((Choice*)b);
+ if (ca->score < cb->score)
+ return 1;
+ else if (ca->score > cb->score)
+ return -1;
+ else
+ return strcmp(ca->string, cb->string);
+}
+
+static void load_choices(XConf* x)
+{
+ size_t choice_len;
+ char* choice_text;
+ bool shown = false;
+ Choice choice = {0};
+ vec_init(&Choices, sizeof(Choice));
+ while ((choice_text = rdline(stdin, &choice_len)) != NULL)
+ {
+ if (choice_len > 0)
+ {
+ choice.string = choice_text;
+ choice.length = strlen(choice_text);
+ choice.score = 1.0;
+ if (!shown && peekc(stdin) != EOF)
+ {
+ x11_show(x);
+ redraw(x);
+ shown = true;
+ }
+ vec_push_back(&Choices, &choice);
+ }
+ else
+ {
+ free(choice_text);
+ }
+ }
+}
+
+static char* find_char(char* str, int ch)
+{
+ for (; *str; str++)
+ if (tolower(*str) == tolower(ch))
+ return str;
+ return NULL;
+}
+
+static inline bool find_match(char *string, char* query, size_t offset, char **start, char **end)
+{
+ char *s, *e;
+ /* find first match char or bail */
+ s = e = find_char(&string[offset], *query);
+ if (s == NULL) return false;
+
+ /* find the end of the match */
+ for (query++; *query; query++)
+ if ((e = find_char(e+1, *query)) == NULL)
+ return false;
+
+ /* if we made it this far, we found a match */
+ *start = s, *end = e;
+ return true;
+}
+
+static bool match(char *string, size_t offset, size_t *start, size_t *end)
+{
+ char *s1 = 0, *e1 = 0, *s2, *e2;
+ /* first check if we match at all */
+ if (!find_match(string, Query, offset, &s1, &e1))
+ return false;
+ s2 = s1, e2 = e1; // Init s2 and e2 before use below
+
+ /* next find the longest match. If multiple, take the left most one */
+ while (find_match(string, Query, ++offset, &s1, &e1) && ((e1-s1) <= (e2-s2)))
+ s1 = s2, e1 = e2;
+
+ /* return the best match */
+ *start = s1 - string;
+ *end = e1 - string;
+ return true;
+}
+
+static void score(void)
+{
+ unsigned int nchoices = vec_size(&Choices);
+ for (unsigned int i = 0; i < nchoices; i++) {
+ Choice* choice = (Choice*)vec_at(&Choices, i);
+ float qlen = (float)QueryIdx;
+ if (match(choice->string, 0, &choice->match_start, &choice->match_end))
+ {
+ float clen = (float)(choice->match_end - choice->match_start) + 1;
+ choice->score = qlen / clen / (float)(choice->length);
+ }
+ else
+ {
+ choice->match_start = 0;
+ choice->match_end = 0;
+ choice->score = 0.0f;
+ }
+ }
+ vec_sort(&Choices, by_score);
+}
+
+int main(int argc, char** argv)
+{
+ XConf x = {0};
+ if (argc >= 2) {
+ size_t sz = min(strlen(argv[1]), sizeof(Query)-1);
+ strncpy(Query, argv[1], sz);
+ QueryIdx = sz;
+ }
+ xinit(&x);
+ load_choices(&x);
+ score();
+ if (vec_size(&Choices) > 1)
+ x11_event_loop(&x, redraw);
+ Choice* choice = (Choice*)vec_at(&Choices, ChoiceIdx);
+ if (vec_size(&Choices) && ChoiceIdx != SIZE_MAX)
+ printf("%s\n", choice->string);
+ return 0;
+}
+
+static void xkeypress(XConf* x, XEvent* e)
+{
+ char buf[8];
+ KeySym key;
+ Status status;
+ if (x->xic)
+ Xutf8LookupString(x->xic, &(e->xkey), buf, sizeof(buf), &key, &status);
+ else
+ XLookupString(&(e->xkey), buf, sizeof(buf), &key, 0);
+ if (key == XK_Return)
+ {
+ x->state = QUITTING;
+ }
+ else if (key == XK_Escape)
+ {
+ x->state = QUITTING;
+ ChoiceIdx = SIZE_MAX;
+ }
+ else if (key == XK_Up)
+ {
+ if (ChoiceIdx > 0)
+ ChoiceIdx--;
+ if (ChoiceIdx < Offset)
+ Offset--;
+ }
+ else if (key == XK_Down)
+ {
+ size_t nlines = ((x->height - x->font->height - 4) / x->font->height) - 1;
+ size_t maxidx = Offset + nlines;
+ if (ChoiceIdx+1 < vec_size(&Choices))
+ ChoiceIdx++;
+ if (ChoiceIdx > maxidx)
+ Offset++;
+ }
+ else if (key == XK_BackSpace)
+ {
+ if (QueryIdx > 0)
+ Query[--QueryIdx] = '\0';
+ score();
+ }
+ else if (key >= 0x20 && key <= 0x7F)
+ {
+ if (QueryIdx < sizeof(Query)-1)
+ Query[QueryIdx++] = key;
+ Offset = ChoiceIdx = 0;
+ score();
+ }
+}
+
+static void xbtnpress(XConf* x, XEvent* e)
+{
+ (void)x;
+ if (e->xbutton.button == Button1)
+ {
+ int starty = x->font->height + 4;
+ e->xbutton.y = (e->xbutton.y < starty ? starty : e->xbutton.y - starty);
+ ChoiceIdx = Offset + (e->xbutton.y / x->font->height);
+ if (ChoiceIdx >= vec_size(&Choices))
+ ChoiceIdx = vec_size(&Choices)-1;
+ }
+ else if (e->xbutton.button == Button2)
+ {
+ x->state = QUITTING;
+ }
+ else if (e->xbutton.button == Button3)
+ {
+ x->state = QUITTING;
+ ChoiceIdx = SIZE_MAX;
+ }
+ else if (e->xbutton.button == Button4)
+ {
+ if (Offset > 0) Offset--;
+ }
+ else if (e->xbutton.button == Button5)
+ {
+ if (Offset < vec_size(&Choices)) Offset++;
+ }
+}
+
+static void redraw(XConf* x)
+{
+ /* draw the background colors and border */
+ size_t fheight = x->font->height;
+ size_t nlines = ((x->height - x->font->height - 4) / x->font->height) - 1;
+ size_t scroll_height = x->height - fheight - 4;
+ size_t start = (size_t)((float)Offset / (float)vec_size(&Choices) * scroll_height);
+ size_t size = (size_t)((float)nlines / (float)vec_size(&Choices) * scroll_height);
+
+ x11_draw_rect(x, Palette[EditBg], 0, 0, x->width, x->height);
+ x11_draw_rect(x, Palette[TagsBg], 0, 0, x->width, fheight + 4);
+ x11_draw_rect(x, Palette[HorBdr], 0, fheight + 4, x->width, 1);
+ x11_draw_rect(x, Palette[ScrollBg], 0, fheight + 5, ScrollWidth+1, scroll_height);
+ x11_draw_rect(x, Palette[ScrollFg], 0, fheight + 5 + start, ScrollWidth, (size ? size : 5));
+
+ /* get size of the query when printed */
+ XGlyphInfo glyphinfo;
+ XftTextExtentsUtf8(x->display, x->font, (const FcChar8*)Query, strlen(Query), &glyphinfo);
+ int offset = 0;
+ if (glyphinfo.width >= (x->width - 4))
+ offset = ((x->width - 4) - glyphinfo.width);
+
+ /* draw the query and the cursor to the query region */
+ int posx = 2 + glyphinfo.width + offset;
+ x11_draw_rect(x, Palette[TagsFg], posx-1, 2, 3, 3);
+ x11_draw_rect(x, Palette[TagsFg], posx, 2, 1, fheight);
+ x11_draw_rect(x, Palette[TagsFg], posx-1, 2+fheight-3, 3, 3);
+ x11_draw_string(x, x->font, offset + 2, fheight, Palette[TagsFg], Query);
+
+ /* draw the scored and sorted results */
+ if (vec_size(&Choices))
+ {
+ for (int i = Offset, y = 2 * fheight + 4; ((size_t)i < vec_size(&Choices)) && ((size_t)i <= Offset+nlines); i++, y += fheight)
+ {
+ if ((size_t)i == ChoiceIdx)
+ x11_draw_rect(x, Palette[EditSel], ScrollWidth+3, y - x->font->ascent, x->width, fheight);
+ x11_draw_string(x, x->font, ScrollWidth+3, y, Palette[TagsFg], ((Choice*)vec_at(&Choices, i))->string);
+ }
+ }
+ else
+ {
+ x11_draw_string(x, x->font, ScrollWidth+3, 2 * fheight + 4, Palette[TagsFg], "Loading...");
+ }
+ x11_flip(x);
+}
+
+static void xinit(XConf* x)
+{
+ x11_init(x);
+ x11_mkdialog(x, 640, 480, 0
+ | StructureNotifyMask
+ | KeyPressMask
+ | ButtonPressMask
+ | ExposureMask
+ );
+ x11_init_gc(x);
+ x11_centerwin(x);
+ if (!(x->font = x11_font_load(x, Fonts[0])))
+ {
+ perror("unable to load base font");
+ exit(EXIT_FAILURE);
+ }
+ x->eventfns[KeyPress] = xkeypress;
+ x->eventfns[ButtonPress] = xbtnpress;
+}
--- /dev/null
+#include <stdc.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <pwd.h>
+#include "io.h"
+
+static int TelemFd = -1;
+static char TelemBuf[16384];
+
+static int open_telem(char* path)
+{
+ static unsigned long prev = 0;
+ unsigned long curr = time(NULL);
+ if ((TelemFd < 0) && ((curr - prev) >= 1))
+ {
+ struct stat st = {0};
+ if ((stat(path, &st) >= 0) && S_ISFIFO(st.st_mode))
+ {
+ TelemFd = open(path, O_WRONLY|O_NONBLOCK, 0);
+ prev = curr;
+ }
+ }
+ return TelemFd;
+}
+
+static void close_telem(void)
+{
+ close(TelemFd);
+ TelemFd = -1;
+}
+
+static char* advance(char* buf, size_t* p_len, long nwrite)
+{
+ if (nwrite >= 0)
+ {
+ *p_len -= nwrite;
+ buf = (buf + nwrite);
+ }
+ return buf;
+}
+
+static char* add_timestamp(char* buf, size_t* p_len)
+{
+ time_t rawtime;
+ time(&rawtime);
+ struct tm* timeinfo = localtime(&rawtime);
+ long nwrite = strftime(buf, *p_len, "[%F %T] ", timeinfo);
+ return advance(buf, p_len, nwrite);
+}
+
+static char* add_pid(char* buf, size_t* p_len)
+{
+ long nwrite = snprintf(buf, *p_len, "%s(%d) ", ARGV0, getpid());
+ return advance(buf, p_len, nwrite);
+}
+
+static char* add_message(char* buf, size_t* p_len, char* fmt, va_list args)
+{
+ long nwrite = vsnprintf(buf, *p_len, fmt, args);
+ return advance(buf, p_len, nwrite);
+}
+
+static char* get_fifo_path(void)
+{
+ static char path[1024] = {0};
+ if (!path[0])
+ {
+ snprintf(path, sizeof(path)-1,"%s/tide-telem", getpwuid(getuid())->pw_dir);
+ }
+ return path;
+}
+
+void telem_send(char* fmt, ...)
+{
+ char* str = TelemBuf;
+ size_t nleft = sizeof(TelemBuf);
+ int fd = open_telem(get_fifo_path());
+ if (fd >= 0)
+ {
+ void (*sigfn)(int) = signal(SIGPIPE, SIG_IGN);
+ va_list args;
+ va_start(args, fmt);
+ str = add_timestamp(str, &nleft);
+ str = add_pid(str, &nleft);
+ str = add_message(str, &nleft, fmt, args);
+ va_end(args);
+ if (writefd(fd, TelemBuf, str - TelemBuf) < 0)
+ {
+ close_telem();
+ }
+ signal(SIGPIPE, sigfn);
+ }
+}
--- /dev/null
+/** @file */
+enum {
+ UTF_MAX = 6u, /* maximum number of bytes that make up a rune */
+ RUNE_SELF = 0x80, /* byte values larger than this are *not* ascii */
+ RUNE_ERR = 0xFFFD, /* rune value representing an error */
+ RUNE_MAX = 0x10FFFF, /* Maximum decodable rune value */
+ RUNE_EOF = -1, /* rune value representing end of file */
+};
+
+/* Represents a unicode code point */
+typedef int32_t Rune;
+
+size_t utf8encode(char str[UTF_MAX], Rune rune);
+bool utf8decode(Rune* rune, size_t* length, int byte);
+int runewidth(unsigned col, Rune r);
+bool risword(Rune r);
+bool rissigil(Rune r);
+bool risfile(Rune r);
+bool riscmd(Rune r);
+bool risblank(Rune r);
+bool risbigword(Rune r);
--- /dev/null
+#include <stdc.h>
+#include "utf.h"
+#include <wchar.h>
+#include <ctype.h>
+
+#include "config.h"
+
+static const uint8_t UTF8_SeqBits[] = { 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE };
+static const uint8_t UTF8_SeqMask[] = { 0x00, 0xFF, 0x1F, 0x0F, 0x07, 0x03, 0x01, 0x00 };
+static const uint8_t UTF8_SeqLens[] = { 0x01, 0x00, 0x02, 0x03, 0x04, 0x05, 0x06, 0x00 };
+
+static bool runevalid(Rune val)
+{
+ return (val <= RUNE_MAX)
+ && ((val & 0xFFFE) != 0xFFFE)
+ && ((val < 0xD800) || (val > 0xDFFF))
+ && ((val < 0xFDD0) || (val > 0xFDEF));
+}
+
+static size_t runelen(Rune rune)
+{
+ size_t ret;
+ if(!runevalid(rune))
+ {
+ ret = 0;
+ }
+ else if(rune <= 0x7F)
+ {
+ ret = 1;
+ }
+ else if(rune <= 0x07FF)
+ {
+ ret = 2;
+ }
+ else if(rune <= 0xFFFF)
+ {
+ ret = 3;
+ }
+ else
+ {
+ ret = 4;
+ }
+ return ret;
+}
+
+static uint8_t utfseq(uint8_t byte)
+{
+ uint8_t ret = 0;
+ for (int i = 1; i < 8; i++)
+ {
+ if ((byte & UTF8_SeqBits[i]) == UTF8_SeqBits[i-1])
+ {
+ ret = UTF8_SeqLens[i-1];
+ break;
+ }
+ }
+ return ret;
+}
+
+size_t utf8encode(char str[UTF_MAX], Rune rune)
+{
+ size_t len = runelen(rune);
+ str[0] = (len == 1 ? 0x00 : UTF8_SeqBits[len])
+ | (UTF8_SeqMask[len] & (rune >> (6 * (len-1))));
+ for (size_t i = 1; i < len; i++)
+ str[i] = 0x80u | (0x3Fu & (rune >> (6 * (len-i-1))));
+ return len;
+}
+
+bool utf8decode(Rune* rune, size_t* length, int byte)
+{
+ /* Handle the start of a new rune */
+ if (*length == 0) {
+ /* If we were fed in an EOF as a start byte, handle it here */
+ if (byte == EOF) {
+ *rune = RUNE_EOF;
+ } else {
+ /* Otherwise, decode the first byte of the rune */
+ *length = utfseq(byte);
+ *rune = (*length == 0) ? RUNE_ERR : (byte & UTF8_SeqMask[*length]);
+ (*length)--;
+ }
+ /* Handle continuation bytes */
+ } else if ((byte & 0xC0) == 0x80) {
+ /* add bits from continuation byte to rune value
+ * cannot overflow: 6 byte sequences contain 31 bits */
+ *rune = (*rune << 6) | (byte & 0x3F); /* 10xxxxxx */
+ (*length)--;
+ /* Sanity check the final rune value before finishing */
+ if ((*length == 0) && !runevalid(*rune))
+ *rune = RUNE_ERR;
+ /* Didn't get the continuation byte we expected */
+ } else {
+ *rune = RUNE_ERR;
+ }
+ /* Tell the caller whether we finished or not */
+ return ((*length == 0) || (*rune == RUNE_ERR));
+}
+
+int runewidth(unsigned col, Rune r)
+{
+ int width;
+ if (r == '\t')
+ {
+ width = (TabWidth - (col % TabWidth));
+ }
+ else
+ {
+ width = wcwidth(r);
+ if (width < 0) width = 1;
+ }
+ return width;
+}
+
+bool risword(Rune r)
+{
+ return (r < 127 && (isalnum(r) || r == '_' || r == '+' || r == '-'));
+}
+
+bool rissigil(Rune r)
+{
+ return (r == ':' || r == '!' || r == '&' || r == '|' || r == '>' || r == '<');
+}
+
+bool risfile(Rune r)
+{
+ return (risword(r) || r == '/' || r == '.' || r == ':' || r == '-' || r == '~');
+}
+
+bool riscmd(Rune r)
+{
+ return (risword(r) || rissigil(r));
+}
+
+bool risblank(Rune r)
+{
+ return (r == ' ' || r == '\t' || r == '\n' || r == '\r');
+}
+
+bool risbigword(Rune r)
+{
+ return !risblank(r);
+}
+
--- /dev/null
+#include <stdc.h>
+#include "io.h"
+
+long writefd(int fd, char* data, long towrite)
+{
+ long nwrite = 0;
+ while (towrite && ((nwrite = write(fd, data, towrite)) > 0))
+ {
+ data += nwrite;
+ towrite -= nwrite;
+ }
+ return nwrite;
+}
--- /dev/null
+#include <stdc.h>
+#include "x11.h"
+#include "utf.h"
+#include "io.h"
+#include <locale.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "config.h"
+
+struct XConf X;
+static Bool Has_Error = False;
+static XErrorEvent Error = {0};
+
+static int onerror(Display* disp, XErrorEvent* ev)
+{
+ (void)disp;
+ Has_Error = True, Error = *ev;
+ return 0;
+}
+
+int x11_init(XConf* x)
+{
+ int ret = -1;
+ signal(SIGPIPE, SIG_IGN); // Ignore the SIGPIPE signal
+ setlocale(LC_CTYPE, "");
+ XSetLocaleModifiers("");
+ /* open the X display and get basic attributes */
+ if ( (x->display = XOpenDisplay(0)) )
+ {
+ x->root = DefaultRootWindow(x->display);
+ XWindowAttributes wa;
+ XGetWindowAttributes(x->display, x->root, &wa);
+ x->visual = wa.visual;
+ x->colormap = wa.colormap;
+ x->screen = DefaultScreen(x->display);
+ x->depth = DefaultDepth(x->display, x->screen);
+ x->state = RUNNING;
+ XSetErrorHandler(onerror);
+ ret = 0;
+ }
+ return ret;
+}
+
+void x11_error_clear(void)
+{
+ Has_Error = False;
+ memset(&Error, 0, sizeof(Error));
+}
+
+XErrorEvent* x11_error_get(void)
+{
+ return (Has_Error ? &Error : NULL);
+}
+
+void x11_mkwin(XConf* x, int width, int height, int evmask)
+{
+ /* create the main window */
+ x->width = width, x->height = height;
+ XSetWindowAttributes attr;
+ attr.background_pixel = Palette[EditBg];
+ attr.bit_gravity = NorthWestGravity;
+ attr.backing_store = WhenMapped;
+ attr.event_mask = evmask
+ | EnterWindowMask
+ | ExposureMask
+ | VisibilityChangeMask
+ | StructureNotifyMask
+ ;
+ x->self = XCreateWindow(
+ x->display, x->root, 0, 0, x->width, x->height, 0, x->depth, InputOutput, x->visual,
+ CWBackPixel | CWBitGravity | CWBackingStore | CWEventMask,
+ &attr);
+
+ /* register interest in the delete window message */
+ Atom wmDeleteMessage = XInternAtom(x->display, "WM_DELETE_WINDOW", False);
+ XSetWMProtocols(x->display, x->self, &wmDeleteMessage, 1);
+}
+
+void x11_mkdialog(XConf* x, int width, int height, int evmask)
+{
+ x11_mkwin(x, width, height, evmask);
+ Atom WindowType = XInternAtom(x->display, "_NET_WM_WINDOW_TYPE", False);
+ Atom DialogType = XInternAtom(x->display, "_NET_WM_WINDOW_TYPE_DIALOG", False);
+ XChangeProperty(x->display, x->self, WindowType, XA_ATOM, 32, PropModeReplace, (unsigned char*)&DialogType, 1);
+}
+
+static void update_state(XConf* x, XEvent* e)
+{
+ if ((e->type == KeyPress) || (e->type == ButtonPress) ||
+ (e->type == ButtonRelease) || (e->type == MotionNotify))
+ {
+ x->now = e->xkey.time;
+ x->mods = e->xkey.state;
+ }
+}
+
+void x11_process_events(XConf* x)
+{
+ int nevents;
+ /* reap zombie background processes */
+ for (int status; waitpid(-1, &status, WNOHANG) > 0;);
+ /* process the entire event queue */
+ while (XEventsQueued(x->display, QueuedAfterReading))
+ {
+ telem_send("EV_READ_QUEUE(pending: %d)\n", XPending(x->display));
+ XGetMotionEvents(x->display, x->self, CurrentTime, CurrentTime, &nevents);
+
+ for (XEvent e; XPending(x->display);)
+ {
+ XNextEvent(x->display, &e);
+ update_state(x, &e);
+ if (!XFilterEvent(&e, None) && x->eventfns[e.type])
+ {
+ telem_send("EV_HANDLE(type: %d)\n", e.type);
+ (x->eventfns[e.type])(x, &e);
+ }
+ else
+ {
+ telem_send("EV_IGNORE(type: %d)\n", e.type);
+ }
+
+ /* log error here */
+ XErrorEvent* err = x11_error_get();
+ if (err)
+ {
+ char msg[8192];
+ XGetErrorText(x->display, err->error_code, msg, sizeof(msg));
+ telem_send("XERROR(%s)\n", msg);
+ x11_error_clear();
+ }
+ }
+ }
+}
+
+void x11_event_loop(XConf* x, void (*redraw)(XConf* x))
+{
+ if (redraw) redraw(x);
+ for (XEvent e; x->state != QUITTING;)
+ {
+ XNextEvent(x->display, &e);
+ if (x->eventfns[e.type])
+ {
+ x->eventfns[e.type](x, &e);
+ }
+ for (int status; waitpid(-1, &status, WNOHANG) > 0;);
+ if (redraw)
+ {
+ redraw(x);
+ }
+ }
+}
+
+int x11_getptr(XConf* x, int* ptrx, int* ptry)
+{
+ Window root = 0, child = 0;
+ int winx = 0, winy = 0, mask = 0;
+ return XQueryPointer(x->display, x->self, &root, &child, ptrx, ptry, &winx, &winy, (unsigned int*)&mask);
+}
+
+static uint32_t special_keys(uint32_t key)
+{
+ static uint32_t keymap[256] = {
+ /* Function keys */
+ [0xBE] = KEY_F1, [0xBF] = KEY_F2, [0xC0] = KEY_F3, [0xC1] = KEY_F4,
+ [0xC2] = KEY_F5, [0xC3] = KEY_F6, [0xC4] = KEY_F7, [0xC5] = KEY_F8,
+ [0xC6] = KEY_F9, [0xC7] = KEY_F10, [0xC8] = KEY_F11, [0xC9] = KEY_F12,
+ /* Navigation keys */
+ [0x50] = KEY_HOME, [0x51] = KEY_LEFT, [0x52] = KEY_UP,
+ [0x53] = KEY_RIGHT, [0x54] = KEY_DOWN, [0x55] = KEY_PGUP,
+ [0x56] = KEY_PGDN, [0x57] = KEY_END,
+ /* Control keys */
+ [0x08] = '\b', [0x09] = '\t', [0x0d] = '\n', [0x0a] = '\n',
+ /* Miscellaneous */
+ [0x63] = KEY_INSERT, [0x1B] = KEY_ESCAPE, [0xFF] = KEY_DELETE,
+ };
+ /* lookup the key by keysym */
+ key = ((key & 0xFF00) == 0xFF00 ? keymap[key & 0xFF] : key);
+ return (!key ? RUNE_ERR : key);
+}
+
+uint32_t x11_getkey(XConf* x, XEvent* e)
+{
+ uint32_t ret;
+ char buf[8];
+ KeySym key;
+ Status status;
+
+ /* Read the key string */
+ if (x->xic)
+ {
+ Xutf8LookupString(x->xic, &(e->xkey), buf, sizeof(buf), &key, &status);
+ }
+ else
+ {
+ XLookupString(&(e->xkey), buf, sizeof(buf), &key, 0);
+ }
+
+ /* if it's ascii, just return it */
+ if (key >= 0x20 && key <= 0x7F)
+ {
+ ret = (uint32_t)key;
+ }
+ else
+ {
+ ret = special_keys(key);
+ }
+ return ret;
+}
+
+uint32_t x11_process_key(XConf* x, XEvent* e, KeyBinding* keys)
+{
+ uint32_t key = x11_getkey(x, e);
+ if (key != RUNE_ERR)
+ {
+ int mods = e->xkey.state & (ModCtrl|ModShift|ModAlt);
+ int32_t mkey = tolower(key);
+ for (KeyBinding* bind = keys; bind && bind->key; bind++)
+ {
+ bool match = (mkey == (int32_t)bind->key);
+ bool exact = (bind->mods == mods);
+ bool any = (bind->mods == ModAny);
+ bool oneplus = ((bind->mods == ModOneOrMore) && (mods & ModOneOrMore));
+ if (match && (exact || oneplus || any))
+ {
+ bind->fn(bind->arg);
+ key = RUNE_ERR;
+ break;
+ }
+ }
+ }
+ /* fallback to just inserting the rune if it doesn't fall in the private use area.
+ * the private use area is used to encode special keys */
+ return (key < 0xE000 || key > 0xF8FF ? key : RUNE_ERR);
+}
+
+int x11_seturgent(XConf* x, int urgent)
+{
+ int status = 0;
+ XWMHints hints = {0}, *prevhints = XGetWMHints(x->display, x->self);
+ if (prevhints)
+ {
+ hints = *prevhints;
+ XFree(prevhints);
+ }
+ if (urgent)
+ {
+ hints.flags |= XUrgencyHint;
+ }
+ else
+ {
+ hints.flags &= ~XUrgencyHint;
+ }
+ status = XSetWMHints(x->display, x->self, &hints);
+ telem_send("URGENT(%d %d)\n", urgent, status);
+ return status;
+}
--- /dev/null
+/** @file */
+AUTOLIB(X11)
+AUTOLIB(Xinerama)
+AUTOLIB(Xft)
+AUTOLIB(fontconfig)
+
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xft/Xft.h>
+
+enum {
+ RUNNING,
+ SERVE_SEL,
+ QUITTING
+};
+
+typedef struct XConf {
+ Bool error;
+ int state, fd, screen, width, height, mods;
+ Window root;
+ Display* display;
+ Visual* visual;
+ Colormap colormap;
+ unsigned depth;
+ Window self;
+ XftDraw* xft;
+ XftFont *tagfont, *font;
+ Pixmap pixmap;
+ XIC xic;
+ XIM xim;
+ GC gc;
+ void (*eventfns[LASTEvent])(struct XConf*, XEvent*);
+ Time now;
+} XConf;
+
+/* Selection identifiers */
+enum {
+ PRIMARY = 0,
+ CLIPBOARD = 1
+};
+
+/* key definitions */
+enum Keys {
+ /* Define some runes in the private use area of unicode to represent
+ * special keys */
+ KEY_F1 = (0xE000+0),
+ KEY_F2 = (0xE000+1),
+ KEY_F3 = (0xE000+2),
+ KEY_F4 = (0xE000+3),
+ KEY_F5 = (0xE000+4),
+ KEY_F6 = (0xE000+5),
+ KEY_F7 = (0xE000+6),
+ KEY_F8 = (0xE000+7),
+ KEY_F9 = (0xE000+8),
+ KEY_F10 = (0xE000+9),
+ KEY_F11 = (0xE000+10),
+ KEY_F12 = (0xE000+11),
+ KEY_INSERT = (0xE000+12),
+ KEY_DELETE = (0xE000+13),
+ KEY_HOME = (0xE000+14),
+ KEY_END = (0xE000+15),
+ KEY_PGUP = (0xE000+16),
+ KEY_PGDN = (0xE000+17),
+ KEY_UP = (0xE000+18),
+ KEY_DOWN = (0xE000+19),
+ KEY_RIGHT = (0xE000+20),
+ KEY_LEFT = (0xE000+21),
+
+ /* ASCII Control Characters */
+ KEY_CTRL_TILDE = 0x00,
+ KEY_CTRL_2 = 0x00,
+ KEY_CTRL_A = 0x01,
+ KEY_CTRL_B = 0x02,
+ KEY_CTRL_C = 0x03,
+ KEY_CTRL_D = 0x04,
+ KEY_CTRL_E = 0x05,
+ KEY_CTRL_F = 0x06,
+ KEY_CTRL_G = 0x07,
+ KEY_BACKSPACE = 0x08,
+ KEY_CTRL_H = 0x08,
+ KEY_TAB = 0x09,
+ KEY_CTRL_I = 0x09,
+ KEY_CTRL_J = 0x0A,
+ KEY_CTRL_K = 0x0B,
+ KEY_CTRL_L = 0x0C,
+ KEY_ENTER = 0x0D,
+ KEY_CTRL_M = 0x0D,
+ KEY_CTRL_N = 0x0E,
+ KEY_CTRL_O = 0x0F,
+ KEY_CTRL_P = 0x10,
+ KEY_CTRL_Q = 0x11,
+ KEY_CTRL_R = 0x12,
+ KEY_CTRL_S = 0x13,
+ KEY_CTRL_T = 0x14,
+ KEY_CTRL_U = 0x15,
+ KEY_CTRL_V = 0x16,
+ KEY_CTRL_W = 0x17,
+ KEY_CTRL_X = 0x18,
+ KEY_CTRL_Y = 0x19,
+ KEY_CTRL_Z = 0x1A,
+ KEY_ESCAPE = 0x1B,
+ KEY_CTRL_LSQ_BRACKET = 0x1B,
+ KEY_CTRL_3 = 0x1B,
+ KEY_CTRL_4 = 0x1C,
+ KEY_CTRL_BACKSLASH = 0x1C,
+ KEY_CTRL_5 = 0x1D,
+ KEY_CTRL_RSQ_BRACKET = 0x1D,
+ KEY_CTRL_6 = 0x1E,
+ KEY_CTRL_7 = 0x1F,
+ KEY_CTRL_SLASH = 0x1F,
+ KEY_CTRL_UNDERSCORE = 0x1F,
+};
+
+/* Key modifier masks */
+enum {
+ ModNone = 0,
+ ModShift = (1 << 0),
+ ModCapsLock = (1 << 1),
+ ModCtrl = (1 << 2),
+ ModAlt = (1 << 3),
+ ModNumLock = (1 << 4),
+ ModScrollLock = (1 << 5),
+ ModWindows = (1 << 6),
+ ModOneOrMore = (ModCtrl|ModAlt),
+ ModAny = -1
+};
+
+typedef struct {
+ int mods;
+ uint32_t key;
+ void (*fn)(char*);
+ char* arg;
+} KeyBinding;
+
+extern struct XConf X;
+
+int x11_init(XConf* x);
+void x11_error_clear(void);
+XErrorEvent* x11_error_get(void);
+void x11_resize(XConf* x, XEvent* e);
+
+void x11_mkwin(XConf* x, int width, int height, int evmask);
+void x11_mkdialog(XConf* x, int width, int height, int evmask);
+void x11_process_events(XConf* x);
+void x11_event_loop(XConf* x, void (*redraw)(XConf* x));
+int x11_getptr(XConf* x, int* ptrx, int* ptry);
+uint32_t x11_getkey(XConf* x, XEvent* e);
+uint32_t x11_process_key(XConf* x, XEvent* e, KeyBinding* keys);
+int x11_seturgent(XConf* x, int urgent);
+
+void x11_centerwin(XConf* x);
+void x11_init_gc(XConf* x);
+void x11_show(XConf* x);
+XftFont* x11_font_load(XConf* x, char* name);
+void xftcolor(XConf* x, XftColor* xc, unsigned int c);
+void x11_draw_rect(XConf* x, int color, int px, int py, int width, int height);
+void x11_draw_glyphs(XConf* x, int color, XftFont* font, XftGlyphSpec* specs, long nspecs);
+void x11_flip(XConf* x);
+void x11_draw_string(XConf* x, XftFont* font, int posx, int posy, int color, char* str);
+
+void x11_sel_init(XConf* x);
+int x11_sel_get(XConf* x, int selid, void(*cbfn)(char*));
+int x11_sel_set(XConf* x, int selid, char* str);
+void x11_sel_quit(XConf* x, XEvent* e);
+int x11_sel_ready(XConf* x);
+void x11_sel_serve(XConf* x);
--- /dev/null
+#include <stdc.h>
+#include "x11.h"
+#include "io.h"
+#include <X11/extensions/Xinerama.h>
+
+void x11_resize(XConf* x, XEvent* e)
+{
+ telem_send("XRESIZE(w: %d, h: %d)\n", e->xconfigure.width, e->xconfigure.height);
+ if (e->xconfigure.width != x->width || e->xconfigure.height != x->height)
+ {
+ x->width = e->xconfigure.width;
+ x->height = e->xconfigure.height;
+ XFreePixmap(x->display, x->pixmap);
+ x->pixmap = XCreatePixmap(x->display, x->self, x->width, x->height, x->depth);
+ XftDrawChange(x->xft, x->pixmap);
+ }
+}
+
+void x11_mapnotify(XConf* x, XEvent* e)
+{
+ (void)x;
+ telem_send("XMAPNOTIFY(0x%x)\n", e->xmap.window);
+}
+
+void x11_enternotify(XConf* x, XEvent* e)
+{
+ telem_send("XENTERNOTIFY(0x%x)\n", e->xmap.window);
+ x11_seturgent(x, 0);
+}
+
+void x11_init_gc(XConf* x)
+{
+ /* set input methods */
+ if ((x->xim = XOpenIM(x->display, 0, 0, 0)))
+ x->xic = XCreateIC(x->xim, XNInputStyle, XIMPreeditNothing|XIMStatusNothing, XNClientWindow, x->self, XNFocusWindow, x->self, NULL);
+ /* initialize pixmap and drawing context */
+ x->pixmap = XCreatePixmap(x->display, x->self, x->width, x->height, x->depth);
+ x->xft = XftDrawCreate(x->display, x->pixmap, x->visual, x->colormap);
+ /* initialize the graphics context */
+ XGCValues gcv;
+ gcv.foreground = WhitePixel(x->display, x->screen);
+ gcv.graphics_exposures = False;
+ x->gc = XCreateGC(x->display, x->self, GCGraphicsExposures, &gcv);
+ x->eventfns[ConfigureNotify] = x11_resize;
+ x->eventfns[MapNotify] = x11_mapnotify;
+ x->eventfns[EnterNotify] = x11_enternotify;
+}
+
+void x11_centerwin(XConf* x)
+{
+ int ptrx = 0, ptry = 0;
+ (void)x11_getptr(x, &ptrx, &ptry);
+ int nscreens = 0;
+ XineramaScreenInfo* p_screens = XineramaQueryScreens(x->display, &nscreens);
+ for (int i = 0; i < nscreens; i++)
+ {
+ int minx = p_screens[i].x_org,
+ maxx = p_screens[i].x_org + p_screens[i].width,
+ miny = p_screens[i].y_org,
+ maxy = p_screens[i].y_org + p_screens[i].height;
+ if (minx <= ptrx && ptrx <= maxx && miny <= ptry && ptry <= maxy)
+ {
+ XMoveWindow(x->display, x->self,
+ minx + p_screens[i].width/2 - x->width/2,
+ miny + p_screens[i].height/2 - x->height/2);
+ break;
+ }
+ }
+ if (p_screens)
+ {
+ XFree(p_screens);
+ }
+}
+
+void x11_show(XConf* x)
+{
+ /* simulate an initial resize and map the window */
+ XConfigureEvent ce;
+ ce.type = ConfigureNotify;
+ ce.width = x->width;
+ ce.height = x->height;
+ XSendEvent(x->display, x->self, False, StructureNotifyMask, (XEvent *)&ce);
+ XMapWindow(x->display, x->self);
+ XSync(x->display, False);
+
+ /* Waiting for window mapping */
+ XEvent ev;
+ do
+ {
+ XNextEvent(x->display, &ev);
+ if (XFilterEvent(&ev, None))
+ {
+ continue;
+ }
+ if (ev.type == ConfigureNotify)
+ {
+ x11_resize(x, &ev);
+ }
+ }
+ while (ev.type != MapNotify);
+// XWarpPointer(x->display, None, x->self, 0, 0, x->width, x->height, x->width/2, x->height/2);
+}
+
+XftFont* x11_font_load(XConf* x, char* name)
+{
+ XftFont* font = NULL;
+ if (FcInit())
+ {
+ FcPattern* pattern = FcNameParse((FcChar8 *)name);
+ if (pattern)
+ {
+ /* load the base font */
+ FcResult result;
+ FcPattern* match = XftFontMatch(x->display, x->screen, pattern, &result);
+ if (match)
+ {
+ font = XftFontOpenPattern(x->display, match);
+ }
+ FcPatternDestroy(pattern);
+ FcPatternDestroy(match);
+ }
+ }
+// printf("font: '%s'\n", name);
+ return font;
+}
+
+void xftcolor(XConf* x, XftColor* xc, unsigned int c)
+{
+ #define COLOR(c) ((c) | ((c) >> 8))
+ xc->color.alpha = 0xFFFF;
+ xc->color.red = COLOR((c & 0x00FF0000) >> 8);
+ xc->color.green = COLOR((c & 0x0000FF00));
+ xc->color.blue = COLOR((c & 0x000000FF) << 8);
+ XftColorAllocValue(x->display, x->visual, x->colormap, &(xc->color), xc);
+}
+
+void x11_draw_rect(XConf* x, int color, int px, int py, int width, int height)
+{
+ XftColor clr;
+ xftcolor(x, &clr, color);
+ XftDrawRect(x->xft, &clr, px, py, width, height);
+ XftColorFree(x->display, x->visual, x->colormap, &clr);
+}
+
+void x11_draw_glyphs(XConf* x, int color, XftFont* font, XftGlyphSpec* specs, long nspecs)
+{
+ XftColor clr;
+ xftcolor(x, &clr, color);
+ XftDrawGlyphSpec(x->xft, &clr, font, specs, nspecs);
+ XftColorFree(x->display, x->visual, x->colormap, &clr);
+}
+
+void x11_flip(XConf* x)
+{
+ XCopyArea(x->display, x->pixmap, x->self, x->gc, 0, 0, x->width, x->height, 0, 0);
+ XFlush(x->display);
+}
+
+void x11_draw_string(XConf* x, XftFont* font, int posx, int posy, int color, char* str)
+{
+ XftColor clr;
+ xftcolor(x, &clr, color);
+ XftDrawStringUtf8(x->xft, &clr, font, posx, posy, (const FcChar8*)str, strlen(str));
+ XftColorFree(x->display, x->visual, x->colormap, &clr);
+}
--- /dev/null
+#include <stdc.h>
+#include "x11.h"
+
+struct XSel {
+ char* name;
+ Atom atom;
+ char* text;
+ void (*callback)(char*);
+};
+
+static Atom SelTarget;
+static struct XSel Selections[] = {
+ { .name = "PRIMARY" },
+ { .name = "CLIPBOARD" },
+};
+
+static struct XSel* selfetch(Atom atom)
+{
+ struct XSel* ret = NULL;
+ for (unsigned int i = 0; i < (sizeof(Selections) / sizeof(Selections[0])); i++)
+ {
+ if (atom == Selections[i].atom)
+ {
+ ret = &Selections[i];
+ break;
+ }
+ }
+ return ret;
+}
+
+static void xselclear(XConf* x, XEvent* e)
+{
+ (void)x;
+ struct XSel* sel = selfetch(e->xselectionclear.selection);
+ if (!sel) return;
+ free(sel->text);
+ sel->text = NULL;
+}
+
+static void xselnotify(XConf* x, XEvent* e)
+{
+ /* bail if the selection cannot be converted */
+ if (e->xselection.property == None)
+ return;
+ struct XSel* sel = selfetch( e->xselection.selection );
+ Atom rtype;
+ unsigned long format = 0, nitems = 0, nleft = 0;
+ unsigned char* propdata = NULL;
+ XGetWindowProperty(x->display, x->self, sel->atom, 0, -1, False, AnyPropertyType, &rtype,
+ (int*)&format, &nitems, &nleft, &propdata);
+ if (e->xselection.target == SelTarget)
+ {
+ void(*cbfn)(char*) = sel->callback;
+ sel->callback = NULL;
+ cbfn((char*)propdata);
+ }
+ /* cleanup */
+ if (propdata) XFree(propdata);
+}
+
+static void xselrequest(XConf* x, XEvent* e)
+{
+ XEvent s;
+ struct XSel* sel = selfetch( e->xselectionrequest.selection );
+ s.xselection.type = SelectionNotify;
+ s.xselection.property = e->xselectionrequest.property;
+ s.xselection.requestor = e->xselectionrequest.requestor;
+ s.xselection.selection = e->xselectionrequest.selection;
+ s.xselection.target = e->xselectionrequest.target;
+ s.xselection.time = e->xselectionrequest.time;
+ Atom target = e->xselectionrequest.target;
+ Atom xatargets = XInternAtom(x->display, "TARGETS", 0);
+ Atom xastring = XInternAtom(x->display, "STRING", 0);
+ if (target == xatargets)
+ {
+ /* respond with the supported type */
+ XChangeProperty(
+ x->display,
+ s.xselection.requestor,
+ s.xselection.property,
+ XA_ATOM, 32, PropModeReplace,
+ (unsigned char*)&SelTarget, 1);
+ }
+ else if (target == SelTarget || target == xastring)
+ {
+ XChangeProperty(
+ x->display,
+ s.xselection.requestor,
+ s.xselection.property,
+ SelTarget, 8, PropModeReplace,
+ (unsigned char*)sel->text, strlen(sel->text));
+ }
+ XSendEvent(x->display, s.xselection.requestor, True, 0, &s);
+}
+
+void x11_sel_init(XConf* x)
+{
+ /* initialize selection atoms */
+ for (unsigned int i = 0; i < (sizeof(Selections) / sizeof(Selections[0])); i++)
+ {
+ Selections[i].atom = XInternAtom(x->display, Selections[i].name, 0);
+ }
+ SelTarget = XInternAtom(x->display, "UTF8_STRING", 0);
+ if (SelTarget == None)
+ {
+ SelTarget = XInternAtom(x->display, "STRING", 0);
+ }
+ /* setup event handlers */
+ x->eventfns[SelectionClear] = xselclear;
+ x->eventfns[SelectionNotify] = xselnotify;
+ x->eventfns[SelectionRequest] = xselrequest;
+}
+
+int x11_sel_get(XConf* x, int selid, void(*cbfn)(char*))
+{
+ int ret = 0;
+ struct XSel* sel = &(Selections[selid]);
+ if (!sel->callback)
+ {
+ Window owner = XGetSelectionOwner(x->display, sel->atom);
+ if (owner == x->self)
+ {
+ cbfn(sel->text);
+ }
+ else if (owner != None)
+ {
+ sel->callback = cbfn;
+ XConvertSelection(x->display, sel->atom, SelTarget, sel->atom, x->self, CurrentTime);
+ }
+ ret = 1;
+ }
+ return ret;
+}
+
+int x11_sel_set(XConf* x, int selid, char* str)
+{
+ int ret;
+ struct XSel* sel = &(Selections[selid]);
+ if (!sel || !str || !*str)
+ {
+ free(str);
+ ret = 0;
+ }
+ else
+ {
+ sel->text = str;
+ XSetSelectionOwner(x->display, sel->atom, x->self, CurrentTime);
+ ret = 1;
+ }
+ return ret;
+}
+
+void x11_sel_quit(XConf* x, XEvent* e)
+{
+ xselclear(x, e);
+ if (!Selections[PRIMARY].text && !Selections[CLIPBOARD].text)
+ {
+ x->state = QUITTING;
+ }
+}
+
+int x11_sel_ready(XConf* x)
+{
+ (void)x;
+ return (Selections[PRIMARY].text || Selections[CLIPBOARD].text);
+}
+
+void x11_sel_serve(XConf* x)
+{
+ X.eventfns[SelectionClear] = x11_sel_quit;
+ X.self = XCreateSimpleWindow(X.display, X.root, 0, 0, 1, 1, 0, 0, 0);
+ if (Selections[PRIMARY].text)
+ {
+ XSetSelectionOwner(x->display, Selections[PRIMARY].atom, x->self, CurrentTime);
+
+ }
+ if (Selections[CLIPBOARD].text)
+ {
+ XSetSelectionOwner(x->display, Selections[CLIPBOARD].atom, x->self, CurrentTime);
+ }
+ if (fork()) exit(0); /* fork into background */
+}
+
-$(BINDIR)/screenlock: LIBS += -lui -lX11 -lXft -lfontconfig
+$(BINDIR)/edit: LIBS += -lX11
+$(BINDIR)/editor: LIBS += -lX11 -lXft -lfontconfig -lXinerama
+$(BINDIR)/pick: LIBS += -lX11 -lXft -lfontconfig -lXinerama
+$(BINDIR)/screenlock: LIBS += -lui -lX11 -lXft -lfontconfig -lcrypt -lXrandr
+$(BINDIR)/terminal: LIBS += -lui -lX11 -lXft -lfontconfig
$(BINDIR)/winmgr: LIBS += -lX11 -lXft -lfontconfig -lXinerama
+++ /dev/null
-#include <liba.h>
-#include <libui.h>
-
-int main(int argc, char** argv)
-{
- (void)argc;
- (void)argv;
-
- UIWin* win = win_create("Lock Screen");
- win_show(win);
- sleep(5);
- win_delete(win);
-
- return 0;
-}
\ No newline at end of file
--- /dev/null
+MIT/X Consortium License
+
+© 2015-2016 Markus Teich <markus.teich@stusta.mhn.de>
+© 2014 Dimitris Papastamos <sin@2f30.org>
+© 2006-2014 Anselm R Garbe <anselm@garbe.us>
+© 2014-2016 Laslo Hunhold <dev@frign.de>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
--- /dev/null
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][0] == '-'\
+ && argv[0][1];\
+ argc--, argv++) {\
+ char argc_;\
+ char **argv_;\
+ int brk_;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (brk_ = 0, argv[0]++, argv_ = argv;\
+ argv[0][0] && !brk_;\
+ argv[0]++) {\
+ if (argv_ != argv)\
+ break;\
+ argc_ = argv[0][0];\
+ switch (argc_)
+
+/* Handles obsolete -NUM syntax */
+#define ARGNUM case '0':\
+ case '1':\
+ case '2':\
+ case '3':\
+ case '4':\
+ case '5':\
+ case '6':\
+ case '7':\
+ case '8':\
+ case '9'
+
+#define ARGEND }\
+ }
+
+#define ARGC() argc_
+
+#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
+
+#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ ((x), abort(), (char *)0) :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ (char *)0 :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#define LNGARG() &argv[0][0]
+
+#endif
--- /dev/null
+/* user and group to drop privileges to */
+static const char *user = "nobody";
+static const char *group = "nogroup";
+
+static const char *colorname[NUMCOLS] = {
+ "black", /* after initialization */
+ "#005577", /* during input */
+ "black", /* wrong password */
+};
+
+/* treat a cleared input like a wrong password */
+static const int failonclear = 1;
--- /dev/null
+/* $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */
+/*
+ * Public domain.
+ * Written by Matthew Dempsky.
+ */
+
+#include <string.h>
+
+__attribute__((weak)) void
+__explicit_bzero_hook(void *buf, size_t len)
+{
+ (void)buf, (void)len;
+}
+
+void
+explicit_bzero(void *buf, size_t len)
+{
+ memset(buf, 0, len);
+ __explicit_bzero_hook(buf, len);
+}
--- /dev/null
+#define _DEFAULT_SOURCE
+#define HAVE_SHADOW_H 1
+
+#include <unistd.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <pwd.h>
+#if HAVE_SHADOW_H
+#include <shadow.h>
+#endif
+#include <grp.h>
+
+#include <X11/extensions/Xrandr.h>
+#include <X11/keysym.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+enum {
+ INIT,
+ INPUT,
+ FAILED,
+ NUMCOLS
+};
+
+#include "config.h"
+
+typedef struct {
+ int screen;
+ Window root, win;
+ Pixmap pmap;
+ unsigned long colors[NUMCOLS];
+} Lock;
+
+static Lock **locks;
+static int nscreens;
+static Bool rr;
+static int rrevbase;
+static int rrerrbase;
+
+static void
+die(const char *errstr, ...)
+{
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(1);
+}
+
+#ifdef __linux__
+#include <fcntl.h>
+#include <linux/oom.h>
+
+static void
+dontkillme(void)
+{
+ FILE *f;
+ const char oomfile[] = "/proc/self/oom_score_adj";
+
+ if (!(f = fopen(oomfile, "w"))) {
+ if (errno == ENOENT)
+ return;
+ die("slock: fopen %s: %s\n", oomfile, strerror(errno));
+ }
+ fprintf(f, "%d", OOM_SCORE_ADJ_MIN);
+ if (fclose(f)) {
+ if (errno == EACCES)
+ die("slock: unable to disable OOM killer. "
+ "suid or sgid set?\n");
+ else
+ die("slock: fclose %s: %s\n", oomfile,
+ strerror(errno));
+ }
+}
+#endif
+
+static const char *
+getpw(void)
+{
+ const char *rval;
+ struct passwd *pw;
+
+ /* Check if the current user has a password entry */
+ errno = 0;
+ if (!(pw = getpwuid(getuid()))) {
+ if (errno)
+ die("slock: getpwuid: %s\n", strerror(errno));
+ else
+ die("slock: cannot retrieve password entry\n");
+ }
+ rval = pw->pw_passwd;
+
+#if HAVE_SHADOW_H
+ if (rval[0] == 'x' && rval[1] == '\0') {
+ struct spwd *sp;
+ if (!(sp = getspnam(getenv("USER"))))
+ die("slock: getspnam: cannot retrieve shadow entry (make sure to suid or sgid slock)\n");
+ rval = sp->sp_pwdp;
+ }
+#else
+ if (rval[0] == '*' && rval[1] == '\0') {
+#ifdef __OpenBSD__
+ if (!(pw = getpwnam_shadow(getenv("USER"))))
+ die("slock: getpwnam_shadow: cannot retrieve shadow entry (make sure to suid or sgid slock)\n");
+ rval = pw->pw_passwd;
+#else
+ die("slock: getpwuid: cannot retrieve shadow entry (make sure to suid or sgid slock)\n");
+#endif /* __OpenBSD__ */
+ }
+#endif /* HAVE_SHADOW_H */
+
+ return rval;
+}
+
+static void
+readpw(Display *dpy, const char *pws)
+{
+ char buf[32], passwd[256], *encrypted;
+ int num, screen, running, failure;
+ unsigned int len, color;
+ KeySym ksym;
+ XEvent ev;
+ static int oldc = INIT;
+
+ len = 0;
+ running = 1;
+ failure = 0;
+
+ /* As "slock" stands for "Simple X display locker", the DPMS settings
+ * had been removed and you can set it with "xset" or some other
+ * utility. This way the user can easily set a customized DPMS
+ * timeout. */
+ while (running && !XNextEvent(dpy, &ev)) {
+ if (ev.type == KeyPress) {
+ explicit_bzero(&buf, sizeof(buf));
+ num = XLookupString(&ev.xkey, buf, sizeof(buf), &ksym, 0);
+ if (IsKeypadKey(ksym)) {
+ if (ksym == XK_KP_Enter)
+ ksym = XK_Return;
+ else if (ksym >= XK_KP_0 && ksym <= XK_KP_9)
+ ksym = (ksym - XK_KP_0) + XK_0;
+ }
+ if (IsFunctionKey(ksym) ||
+ IsKeypadKey(ksym) ||
+ IsMiscFunctionKey(ksym) ||
+ IsPFKey(ksym) ||
+ IsPrivateKeypadKey(ksym))
+ continue;
+ switch (ksym) {
+ case XK_Return:
+ passwd[len] = 0;
+ errno = 0;
+ if (!(encrypted = crypt(passwd, pws)))
+ fprintf(stderr, "slock: crypt: %s\n", strerror(errno));
+ else
+ running = !!strcmp(encrypted, pws);
+ if (running) {
+ XBell(dpy, 100);
+ failure = True;
+ }
+ explicit_bzero(&passwd, sizeof(passwd));
+ len = 0;
+ break;
+ case XK_Escape:
+ explicit_bzero(&passwd, sizeof(passwd));
+ len = 0;
+ break;
+ case XK_BackSpace:
+ if (len)
+ passwd[len--] = 0;
+ break;
+ default:
+ if (num && !iscntrl((int)buf[0]) && (len + num < sizeof(passwd))) {
+ memcpy(passwd + len, buf, num);
+ len += num;
+ }
+ break;
+ }
+ color = len ? INPUT : (failure || failonclear ? FAILED : INIT);
+ if (running && oldc != (int)color) {
+ for (screen = 0; screen < nscreens; screen++) {
+ XSetWindowBackground(dpy, locks[screen]->win, locks[screen]->colors[color]);
+ XClearWindow(dpy, locks[screen]->win);
+ }
+ oldc = color;
+ }
+ } else if (rr && ev.type == rrevbase + RRScreenChangeNotify) {
+ XRRScreenChangeNotifyEvent *rre = (XRRScreenChangeNotifyEvent*)&ev;
+ for (screen = 0; screen < nscreens; screen++) {
+ if (locks[screen]->win == rre->window) {
+ XResizeWindow(dpy, locks[screen]->win, rre->width, rre->height);
+ XClearWindow(dpy, locks[screen]->win);
+ }
+ }
+ } else for (screen = 0; screen < nscreens; screen++)
+ XRaiseWindow(dpy, locks[screen]->win);
+ }
+}
+
+static void
+unlockscreen(Display *dpy, Lock *lock)
+{
+ if(dpy == NULL || lock == NULL)
+ return;
+
+ XUngrabPointer(dpy, CurrentTime);
+ XUngrabKeyboard(dpy, CurrentTime);
+ XFreeColors(dpy, DefaultColormap(dpy, lock->screen), lock->colors, NUMCOLS, 0);
+ XFreePixmap(dpy, lock->pmap);
+ XDestroyWindow(dpy, lock->win);
+
+ free(lock);
+}
+
+static void
+cleanup(Display *dpy)
+{
+ int s;
+
+ for (s = 0; s < nscreens; ++s)
+ unlockscreen(dpy, locks[s]);
+
+ free(locks);
+ XCloseDisplay(dpy);
+}
+
+static Lock *
+lockscreen(Display *dpy, int screen)
+{
+ char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
+ int i, ptgrab, kbgrab;
+ Lock *lock;
+ XColor color, dummy;
+ XSetWindowAttributes wa;
+ Cursor invisible;
+
+ if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(Lock))))
+ return NULL;
+
+ lock->screen = screen;
+ lock->root = RootWindow(dpy, lock->screen);
+
+ for (i = 0; i < NUMCOLS; i++) {
+ XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen), colorname[i], &color, &dummy);
+ lock->colors[i] = color.pixel;
+ }
+
+ /* init */
+ wa.override_redirect = 1;
+ wa.background_pixel = lock->colors[INIT];
+ lock->win = XCreateWindow(dpy, lock->root, 0, 0, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen),
+ 0, DefaultDepth(dpy, lock->screen), CopyFromParent,
+ DefaultVisual(dpy, lock->screen), CWOverrideRedirect | CWBackPixel, &wa);
+ lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
+ invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap, &color, &color, 0, 0);
+ XDefineCursor(dpy, lock->win, invisible);
+
+ /* Try to grab mouse pointer *and* keyboard for 600ms, else fail the lock */
+ for (i = 0, ptgrab = kbgrab = -1; i < 6; i++) {
+ if (ptgrab != GrabSuccess) {
+ ptgrab = XGrabPointer(dpy, lock->root, False,
+ ButtonPressMask | ButtonReleaseMask |
+ PointerMotionMask, GrabModeAsync,
+ GrabModeAsync, None, invisible, CurrentTime);
+ }
+ if (kbgrab != GrabSuccess) {
+ kbgrab = XGrabKeyboard(dpy, lock->root, True,
+ GrabModeAsync, GrabModeAsync, CurrentTime);
+ }
+
+ /* input is grabbed: we can lock the screen */
+ if (ptgrab == GrabSuccess && kbgrab == GrabSuccess) {
+ XMapRaised(dpy, lock->win);
+ if (rr)
+ XRRSelectInput(dpy, lock->win, RRScreenChangeNotifyMask);
+
+ XSelectInput(dpy, lock->root, SubstructureNotifyMask);
+ return lock;
+ }
+
+ /* retry on AlreadyGrabbed but fail on other errors */
+ if ((ptgrab != AlreadyGrabbed && ptgrab != GrabSuccess) ||
+ (kbgrab != AlreadyGrabbed && kbgrab != GrabSuccess))
+ break;
+
+ usleep(100000);
+ }
+
+ /* we couldn't grab all input: fail out */
+ if (ptgrab != GrabSuccess)
+ fprintf(stderr, "slock: unable to grab mouse pointer for screen %d\n", screen);
+ if (kbgrab != GrabSuccess)
+ fprintf(stderr, "slock: unable to grab keyboard for screen %d\n", screen);
+ return NULL;
+}
+
+int
+main(int argc, char **argv) {
+ struct passwd *pwd;
+ struct group *grp;
+ uid_t duid;
+ gid_t dgid;
+ const char *pws;
+ Display *dpy;
+ int s, nlocks;
+
+ /* validate drop-user and -group */
+ errno = 0;
+ if (!(pwd = getpwnam(user)))
+ die("slock: getpwnam %s: %s\n", user, errno ?
+ strerror(errno) : "user entry not found");
+ duid = pwd->pw_uid;
+ errno = 0;
+ if (!(grp = getgrnam(group)))
+ die("slock: getgrnam %s: %s\n", group, errno ?
+ strerror(errno) : "group entry not found");
+ dgid = grp->gr_gid;
+
+#ifdef __linux__
+ dontkillme();
+#endif
+
+ pws = getpw();
+ if (strlen(pws) < 2)
+ die("slock: failed to get user password hash.\n");
+
+ if (!(dpy = XOpenDisplay(NULL)))
+ die("slock: cannot open display\n");
+
+ /* drop privileges */
+ if (setgroups(0, NULL) < 0)
+ die("slock: setgroups: %s\n", strerror(errno));
+ if (setgid(dgid) < 0)
+ die("slock: setgid: %s\n", strerror(errno));
+ if (setuid(duid) < 0)
+ die("slock: setuid: %s\n", strerror(errno));
+
+ /* check for Xrandr support */
+ rr = XRRQueryExtension(dpy, &rrevbase, &rrerrbase);
+
+ /* get number of screens in display "dpy" and blank them */
+ nscreens = ScreenCount(dpy);
+ if (!(locks = calloc(nscreens, sizeof(Lock *)))) {
+ XCloseDisplay(dpy);
+ die("slock: out of memory\n");
+ }
+ for (nlocks = 0, s = 0; s < nscreens; s++) {
+ if ((locks[s] = lockscreen(dpy, s)) != NULL)
+ nlocks++;
+ else
+ break;
+ }
+ XSync(dpy, 0);
+
+ /* did we manage to lock everything? */
+ if (nlocks != nscreens) {
+ cleanup(dpy);
+ return 1;
+ }
+
+ /* run post-lock command */
+ if (argc > 0) {
+ switch (fork()) {
+ case -1:
+ cleanup(dpy);
+ die("slock: fork failed: %s\n", strerror(errno));
+ break;
+
+ case 0:
+ if (close(ConnectionNumber(dpy)) < 0)
+ die("slock: close: %s\n", strerror(errno));
+ execvp(argv[0], argv);
+ fprintf(stderr, "slock: execvp %s: %s\n", argv[0],
+ strerror(errno));
+ _exit(1);
+ }
+ }
+
+ /* everything is now blank. Wait for the correct password */
+ readpw(dpy, pws);
+
+ /* password ok, unlock everything and quit */
+ cleanup(dpy);
+
+ return 0;
+}
--- /dev/null
+#undef explicit_bzero
+void explicit_bzero(void *, size_t);
+++ /dev/null
-#include <liba.h>
-#include <sys/wait.h>
-#include <sys/types.h>
-
-char* read_line(FILE* f)
-{
- char* line = efreadline(stdin);
- size_t length = strlen(line);
- if (length > 0 && line[length-1] == '\n')
- {
- line[--length] = '\0';
- if (length > 0 && line[length-1] == '\\')
- {
- line[--length] = ' ';
- char* rest = read_line(f);
- char* lnpart = strmcat(line, rest, 0);
- free(line);
- free(rest);
- line = lnpart;
- }
- }
- return line;
-}
-
-int main(int argc, char **argv)
-{
- (void)argc;
- (void)argv;
-
- /* load config files... */
-
- int running = 1;
- do
- {
- printf("> ");
- char* line = read_line(stdin);
- printf("'%s'\n", line);
- free(line);
- }
- while (running);
-
- /* shutdown and cleanup */
-
- return 0;
-}
--- /dev/null
+MIT/X Consortium License
+
+© 2009-2012 Aurélien APTEL <aurelien dot aptel at gmail dot com>
+© 2009 Anselm R Garbe <garbeam at gmail dot com>
+© 2012-2015 Roberto E. Vargas Caballero <k0ga at shike2 dot com>
+© 2012-2015 Christoph Lohmann <20h at r-36 dot net>
+© 2013 Eon S. Jeon <esjeon at hyunmu dot am>
+© 2013 Alexander Sedov <alex0player at gmail dot com>
+© 2013 Mark Edgar <medgar123 at gmail dot com>
+© 2013 Eric Pruitt <eric.pruitt at gmail dot com>
+© 2013 Michael Forney <mforney at mforney dot org>
+© 2013-2014 Markus Teich <markus dot teich at stusta dot mhn dot de>
+© 2014-2015 Laslo Hunhold <dev at frign dot de>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
--- /dev/null
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][0] == '-'\
+ && argv[0][1];\
+ argc--, argv++) {\
+ char argc_;\
+ char **argv_;\
+ int brk_;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (brk_ = 0, argv[0]++, argv_ = argv;\
+ argv[0][0] && !brk_;\
+ argv[0]++) {\
+ if (argv_ != argv)\
+ break;\
+ argc_ = argv[0][0];\
+ switch (argc_)
+#define ARGEND }\
+ }
+
+#define ARGC() argc_
+
+#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ ((x), abort(), (char *)0) :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ (char *)0 :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#endif
--- /dev/null
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
+static int borderpx = 2;
+#define histsize 2000
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: utmp option
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char shell[] = "/bin/sh";
+static char *utmp = NULL;
+static char stty_args[] = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+static char vtiden[] = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: " `'\"()[]{}"
+ */
+static char worddelimiters[] = " ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+static int allowaltscreen = 1;
+
+/* frames per second st should at maximum draw to the screen */
+static unsigned int xfps = 120;
+static unsigned int actionfps = 30;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+static char termname[] = "st-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ * it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ * running following command:
+ *
+ * stty tabs
+ */
+static unsigned int tabspaces = 8;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+ /* solarized dark */
+ "#073642", /* 0: black */
+ "#dc322f", /* 1: red */
+ "#859900", /* 2: green */
+ "#b58900", /* 3: yellow */
+ "#268bd2", /* 4: blue */
+ "#d33682", /* 5: magenta */
+ "#2aa198", /* 6: cyan */
+ "#eee8d5", /* 7: white */
+ "#002b36", /* 8: brblack */
+ "#cb4b16", /* 9: brred */
+ "#586e75", /* 10: brgreen */
+ "#657b83", /* 11: bryellow */
+ "#839496", /* 12: brblue */
+ "#6c71c4", /* 13: brmagenta*/
+ "#93a1a1", /* 14: brcyan */
+ "#fdf6e3", /* 15: brwhite */
+};
+
+/* Terminal colors for alternate (light) palette */
+static const char *altcolorname[] = {
+ /* solarized light */
+ "#eee8d5", /* 0: black */
+ "#dc322f", /* 1: red */
+ "#859900", /* 2: green */
+ "#b58900", /* 3: yellow */
+ "#268bd2", /* 4: blue */
+ "#d33682", /* 5: magenta */
+ "#2aa198", /* 6: cyan */
+ "#073642", /* 7: white */
+ "#fdf6e3", /* 8: brblack */
+ "#cb4b16", /* 9: brred */
+ "#93a1a1", /* 10: brgreen */
+ "#839496", /* 11: bryellow */
+ "#657b83", /* 12: brblue */
+ "#6c71c4", /* 13: brmagenta*/
+ "#586e75", /* 14: brcyan */
+ "#002b36", /* 15: brwhite */
+};
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+static unsigned int defaultfg = 12;
+static unsigned int defaultbg = 8;
+static unsigned int defaultcs = 14;
+static unsigned int defaultrcs = 15;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 2;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Colors used, when the specific fg == defaultfg. So in reverse mode this
+ * will reverse too. Another logic would only make the simple feature too
+ * complex.
+ */
+static unsigned int defaultitalic = 11;
+static unsigned int defaultunderline = 7;
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+ /* button mask string */
+ { Button4, XK_ANY_MOD, "\031" },
+ { Button5, XK_ANY_MOD, "\005" },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+
+static Shortcut shortcuts[] = {
+ /* mask keysym function argument */
+ { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
+ { ControlMask, XK_Print, toggleprinter, {.i = 0} },
+ { ShiftMask, XK_Print, printscreen, {.i = 0} },
+ { XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
+ { MODKEY|ShiftMask, XK_Prior, xzoom, {.f = +1} },
+ { MODKEY|ShiftMask, XK_Next, xzoom, {.f = -1} },
+ { MODKEY|ShiftMask, XK_Home, xzoomreset, {.f = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { MODKEY|ShiftMask, XK_Insert, clippaste, {.i = 0} },
+ { MODKEY|ShiftMask, XK_C, clipcopy, {.i = 0} },
+ { MODKEY|ShiftMask, XK_V, clippaste, {.i = 0} },
+ { MODKEY, XK_Num_Lock, numlock, {.i = 0} },
+ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
+ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
+ { XK_ANY_MOD, XK_F6, swapcolors, {.i = 0} },
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * * = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ * crlf value
+ * * 0: no value
+ * * > 0: crlf mode is enabled
+ * * < 0: crlf mode is disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events. By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * Override mouse-select while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forceselmod = ShiftMask;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+ /* keysym mask string appkey appcursor crlf */
+ { XK_KP_Home, ShiftMask, "\033[2J", 0, -1, 0},
+ { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1, 0},
+ { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1, 0},
+ { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1, 0},
+ { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0, 0},
+ { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0, 0},
+ { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0, 0},
+ { XK_KP_End, ControlMask, "\033[J", -1, 0, 0},
+ { XK_KP_End, ControlMask, "\033[1;5F", +1, 0, 0},
+ { XK_KP_End, ShiftMask, "\033[K", -1, 0, 0},
+ { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0, 0},
+ { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0, 0},
+ { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0, 0},
+ { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0, 0},
+ { XK_KP_Insert, ControlMask, "\033[L", -1, 0, 0},
+ { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0, 0},
+ { XK_KP_Delete, ControlMask, "\033[M", -1, 0, 0},
+ { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0, 0},
+ { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0, 0},
+ { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0, 0},
+ { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0, 0},
+ { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0, -1},
+ { XK_KP_Enter, XK_ANY_MOD, "\r\n", -1, 0, +1},
+ { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0, 0},
+ { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0, 0},
+ { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0, 0},
+ { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0, 0},
+ { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0, 0},
+ { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0, 0},
+ { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0, 0},
+ { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0, 0},
+ { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0, 0},
+ { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0, 0},
+ { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0, 0},
+ { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0, 0},
+ { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0, 0},
+ { XK_Up, ShiftMask, "\033[1;2A", 0, 0, 0},
+ { XK_Up, ControlMask, "\033[1;5A", 0, 0, 0},
+ { XK_Up, Mod1Mask, "\033[1;3A", 0, 0, 0},
+ { XK_Up, XK_ANY_MOD, "\033[A", 0, -1, 0},
+ { XK_Up, XK_ANY_MOD, "\033OA", 0, +1, 0},
+ { XK_Down, ShiftMask, "\033[1;2B", 0, 0, 0},
+ { XK_Down, ControlMask, "\033[1;5B", 0, 0, 0},
+ { XK_Down, Mod1Mask, "\033[1;3B", 0, 0, 0},
+ { XK_Down, XK_ANY_MOD, "\033[B", 0, -1, 0},
+ { XK_Down, XK_ANY_MOD, "\033OB", 0, +1, 0},
+ { XK_Left, ShiftMask, "\033[1;2D", 0, 0, 0},
+ { XK_Left, ControlMask, "\033[1;5D", 0, 0, 0},
+ { XK_Left, Mod1Mask, "\033[1;3D", 0, 0, 0},
+ { XK_Left, XK_ANY_MOD, "\033[D", 0, -1, 0},
+ { XK_Left, XK_ANY_MOD, "\033OD", 0, +1, 0},
+ { XK_Right, ShiftMask, "\033[1;2C", 0, 0, 0},
+ { XK_Right, ControlMask, "\033[1;5C", 0, 0, 0},
+ { XK_Right, Mod1Mask, "\033[1;3C", 0, 0, 0},
+ { XK_Right, XK_ANY_MOD, "\033[C", 0, -1, 0},
+ { XK_Right, XK_ANY_MOD, "\033OC", 0, +1, 0},
+ { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0, 0},
+ { XK_Return, Mod1Mask, "\033\r", 0, 0, -1},
+ { XK_Return, Mod1Mask, "\033\r\n", 0, 0, +1},
+ { XK_Return, XK_ANY_MOD, "\r", 0, 0, -1},
+ { XK_Return, XK_ANY_MOD, "\r\n", 0, 0, +1},
+ { XK_Insert, ShiftMask, "\033[4l", -1, 0, 0},
+ { XK_Insert, ShiftMask, "\033[2;2~", +1, 0, 0},
+ { XK_Insert, ControlMask, "\033[L", -1, 0, 0},
+ { XK_Insert, ControlMask, "\033[2;5~", +1, 0, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0, 0},
+ { XK_Delete, ControlMask, "\033[M", -1, 0, 0},
+ { XK_Delete, ControlMask, "\033[3;5~", +1, 0, 0},
+ { XK_Delete, ShiftMask, "\033[2K", -1, 0, 0},
+ { XK_Delete, ShiftMask, "\033[3;2~", +1, 0, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0, 0},
+ { XK_BackSpace, XK_NO_MOD, "\177", 0, 0, 0},
+ { XK_BackSpace, Mod1Mask, "\033\177", 0, 0, 0},
+ { XK_Home, ShiftMask, "\033[2J", 0, -1, 0},
+ { XK_Home, ShiftMask, "\033[1;2H", 0, +1, 0},
+ { XK_Home, XK_ANY_MOD, "\033[H", 0, -1, 0},
+ { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1, 0},
+ { XK_End, ControlMask, "\033[J", -1, 0, 0},
+ { XK_End, ControlMask, "\033[1;5F", +1, 0, 0},
+ { XK_End, ShiftMask, "\033[K", -1, 0, 0},
+ { XK_End, ShiftMask, "\033[1;2F", +1, 0, 0},
+ { XK_End, XK_ANY_MOD, "\033[4~", 0, 0, 0},
+ { XK_Prior, ControlMask, "\033[5;5~", 0, 0, 0},
+ { XK_Prior, ShiftMask, "\033[5;2~", 0, 0, 0},
+ { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0, 0},
+ { XK_Next, ControlMask, "\033[6;5~", 0, 0, 0},
+ { XK_Next, ShiftMask, "\033[6;2~", 0, 0, 0},
+ { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0, 0},
+ { XK_F1, XK_NO_MOD, "\033OP" , 0, 0, 0},
+ { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0, 0},
+ { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0, 0},
+ { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0, 0},
+ { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0, 0},
+ { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0, 0},
+ { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0, 0},
+ { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0, 0},
+ { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0, 0},
+ { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0, 0},
+ { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0, 0},
+ { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0, 0},
+ { XK_F3, XK_NO_MOD, "\033OR" , 0, 0, 0},
+ { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0, 0},
+ { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0, 0},
+ { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0, 0},
+ { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0, 0},
+ { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0, 0},
+ { XK_F4, XK_NO_MOD, "\033OS" , 0, 0, 0},
+ { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0, 0},
+ { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0, 0},
+ { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0, 0},
+ { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0, 0},
+ { XK_F5, XK_NO_MOD, "\033[15~", 0, 0, 0},
+ { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0, 0},
+ { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0, 0},
+ { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0, 0},
+ { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0, 0},
+ { XK_F6, XK_NO_MOD, "\033[17~", 0, 0, 0},
+ { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0, 0},
+ { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0, 0},
+ { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0, 0},
+ { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0, 0},
+ { XK_F7, XK_NO_MOD, "\033[18~", 0, 0, 0},
+ { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0, 0},
+ { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0, 0},
+ { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0, 0},
+ { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0, 0},
+ { XK_F8, XK_NO_MOD, "\033[19~", 0, 0, 0},
+ { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0, 0},
+ { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0, 0},
+ { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0, 0},
+ { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0, 0},
+ { XK_F9, XK_NO_MOD, "\033[20~", 0, 0, 0},
+ { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0, 0},
+ { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0, 0},
+ { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0, 0},
+ { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0, 0},
+ { XK_F10, XK_NO_MOD, "\033[21~", 0, 0, 0},
+ { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0, 0},
+ { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0, 0},
+ { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0, 0},
+ { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0, 0},
+ { XK_F11, XK_NO_MOD, "\033[23~", 0, 0, 0},
+ { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0, 0},
+ { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0, 0},
+ { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0, 0},
+ { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0, 0},
+ { XK_F12, XK_NO_MOD, "\033[24~", 0, 0, 0},
+ { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0, 0},
+ { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0, 0},
+ { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0, 0},
+ { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0, 0},
+ { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0, 0},
+ { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0, 0},
+ { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0, 0},
+ { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0, 0},
+ { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0, 0},
+ { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0, 0},
+ { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0, 0},
+ { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0, 0},
+ { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0, 0},
+ { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0, 0},
+ { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0, 0},
+ { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0, 0},
+ { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0, 0},
+ { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0, 0},
+ { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0, 0},
+ { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0, 0},
+ { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0, 0},
+ { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0, 0},
+ { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0, 0},
+ { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0, 0},
+ { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0, 0},
+ { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0, 0},
+ { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+ " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
+
--- /dev/null
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+#ifdef __MACH__
+static char font[] = "Monaco:size=11:antialias=true:autohint=true";
+#else
+static char font[] = "Liberation Mono:pixelsize=14:antialias=true:autohint=true";
+#endif
+static int borderpx = 2;
+#define histsize 5000
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: utmp option
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char shell[] = "/bin/sh";
+static char *utmp = NULL;
+static char stty_args[] = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+static char vtiden[] = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: " `'\"()[]{}"
+ */
+static char worddelimiters[] = " ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+static int allowaltscreen = 1;
+
+/* frames per second st should at maximum draw to the screen */
+static unsigned int xfps = 120;
+static unsigned int actionfps = 30;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+static char termname[] = "st-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ * it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ * running following command:
+ *
+ * stty tabs
+ */
+static unsigned int tabspaces = 8;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+ /* gruvbox dark hard */
+ "#1d2021",
+ "#cc241d",
+ "#98971a",
+ "#fb4934",
+ "#d79921",
+ "#458588",
+ "#b16286",
+ "#689d6a",
+ "#d5c4a1",
+ "#928374",
+ "#b8bb26",
+ "#fabd2f",
+ "#83a598",
+ "#d3869b",
+ "#8ec07c",
+ "#ebdbb2",
+};
+
+
+/* Terminal colors for alternate (light) palette */
+static const char *altcolorname[] = {
+ /* gruvbox dark hard */
+ "#1d2021",
+ "#cc241d",
+ "#98971a",
+ "#fb4934",
+ "#d79921",
+ "#458588",
+ "#b16286",
+ "#689d6a",
+ "#a89984",
+ "#928374",
+ "#b8bb26",
+ "#fabd2f",
+ "#83a598",
+ "#d3869b",
+ "#8ec07c",
+ "#ebdbb2",
+};
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+static unsigned int defaultfg = 8;
+static unsigned int defaultbg = 0;
+static unsigned int defaultcs = 8;
+static unsigned int defaultrcs = 0;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 2;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Colors used, when the specific fg == defaultfg. So in reverse mode this
+ * will reverse too. Another logic would only make the simple feature too
+ * complex.
+ */
+static unsigned int defaultitalic = 11;
+static unsigned int defaultunderline = 7;
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+ /* button mask string */
+ { Button4, XK_ANY_MOD, "\031" },
+ { Button5, XK_ANY_MOD, "\005" },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+
+static Shortcut shortcuts[] = {
+ /* mask keysym function argument */
+ { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
+ { ControlMask, XK_Print, toggleprinter, {.i = 0} },
+ { ShiftMask, XK_Print, printscreen, {.i = 0} },
+ { XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
+ { MODKEY|ShiftMask, XK_Prior, xzoom, {.f = +1} },
+ { MODKEY|ShiftMask, XK_Next, xzoom, {.f = -1} },
+ { MODKEY|ShiftMask, XK_Home, xzoomreset, {.f = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { MODKEY|ShiftMask, XK_Insert, clippaste, {.i = 0} },
+ { MODKEY|ShiftMask, XK_C, clipcopy, {.i = 0} },
+ { MODKEY|ShiftMask, XK_V, clippaste, {.i = 0} },
+ { MODKEY, XK_Num_Lock, numlock, {.i = 0} },
+ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
+ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
+ { XK_ANY_MOD, XK_F6, swapcolors, {.i = 0} },
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * * = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ * crlf value
+ * * 0: no value
+ * * > 0: crlf mode is enabled
+ * * < 0: crlf mode is disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events. By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * Override mouse-select while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forceselmod = ShiftMask;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+ /* keysym mask string appkey appcursor crlf */
+ { XK_KP_Home, ShiftMask, "\033[2J", 0, -1, 0},
+ { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1, 0},
+ { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1, 0},
+ { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1, 0},
+ { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1, 0},
+ { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1, 0},
+ { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1, 0},
+ { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1, 0},
+ { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0, 0},
+ { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0, 0},
+ { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0, 0},
+ { XK_KP_End, ControlMask, "\033[J", -1, 0, 0},
+ { XK_KP_End, ControlMask, "\033[1;5F", +1, 0, 0},
+ { XK_KP_End, ShiftMask, "\033[K", -1, 0, 0},
+ { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0, 0},
+ { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0, 0},
+ { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0, 0},
+ { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0, 0},
+ { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0, 0},
+ { XK_KP_Insert, ControlMask, "\033[L", -1, 0, 0},
+ { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0, 0},
+ { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0, 0},
+ { XK_KP_Delete, ControlMask, "\033[M", -1, 0, 0},
+ { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0, 0},
+ { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0, 0},
+ { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0, 0},
+ { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0, 0},
+ { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0, 0},
+ { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0, 0},
+ { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0, -1},
+ { XK_KP_Enter, XK_ANY_MOD, "\r\n", -1, 0, +1},
+ { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0, 0},
+ { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0, 0},
+ { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0, 0},
+ { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0, 0},
+ { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0, 0},
+ { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0, 0},
+ { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0, 0},
+ { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0, 0},
+ { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0, 0},
+ { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0, 0},
+ { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0, 0},
+ { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0, 0},
+ { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0, 0},
+ { XK_Up, ShiftMask, "\033[1;2A", 0, 0, 0},
+ { XK_Up, ControlMask, "\033[1;5A", 0, 0, 0},
+ { XK_Up, Mod1Mask, "\033[1;3A", 0, 0, 0},
+ { XK_Up, XK_ANY_MOD, "\033[A", 0, -1, 0},
+ { XK_Up, XK_ANY_MOD, "\033OA", 0, +1, 0},
+ { XK_Down, ShiftMask, "\033[1;2B", 0, 0, 0},
+ { XK_Down, ControlMask, "\033[1;5B", 0, 0, 0},
+ { XK_Down, Mod1Mask, "\033[1;3B", 0, 0, 0},
+ { XK_Down, XK_ANY_MOD, "\033[B", 0, -1, 0},
+ { XK_Down, XK_ANY_MOD, "\033OB", 0, +1, 0},
+ { XK_Left, ShiftMask, "\033[1;2D", 0, 0, 0},
+ { XK_Left, ControlMask, "\033[1;5D", 0, 0, 0},
+ { XK_Left, Mod1Mask, "\033[1;3D", 0, 0, 0},
+ { XK_Left, XK_ANY_MOD, "\033[D", 0, -1, 0},
+ { XK_Left, XK_ANY_MOD, "\033OD", 0, +1, 0},
+ { XK_Right, ShiftMask, "\033[1;2C", 0, 0, 0},
+ { XK_Right, ControlMask, "\033[1;5C", 0, 0, 0},
+ { XK_Right, Mod1Mask, "\033[1;3C", 0, 0, 0},
+ { XK_Right, XK_ANY_MOD, "\033[C", 0, -1, 0},
+ { XK_Right, XK_ANY_MOD, "\033OC", 0, +1, 0},
+ { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0, 0},
+ { XK_Return, Mod1Mask, "\033\r", 0, 0, -1},
+ { XK_Return, Mod1Mask, "\033\r\n", 0, 0, +1},
+ { XK_Return, XK_ANY_MOD, "\r", 0, 0, -1},
+ { XK_Return, XK_ANY_MOD, "\r\n", 0, 0, +1},
+ { XK_Insert, ShiftMask, "\033[4l", -1, 0, 0},
+ { XK_Insert, ShiftMask, "\033[2;2~", +1, 0, 0},
+ { XK_Insert, ControlMask, "\033[L", -1, 0, 0},
+ { XK_Insert, ControlMask, "\033[2;5~", +1, 0, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0, 0},
+ { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0, 0},
+ { XK_Delete, ControlMask, "\033[M", -1, 0, 0},
+ { XK_Delete, ControlMask, "\033[3;5~", +1, 0, 0},
+ { XK_Delete, ShiftMask, "\033[2K", -1, 0, 0},
+ { XK_Delete, ShiftMask, "\033[3;2~", +1, 0, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0, 0},
+ { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0, 0},
+ { XK_BackSpace, XK_NO_MOD, "\177", 0, 0, 0},
+ { XK_BackSpace, Mod1Mask, "\033\177", 0, 0, 0},
+ { XK_Home, ShiftMask, "\033[2J", 0, -1, 0},
+ { XK_Home, ShiftMask, "\033[1;2H", 0, +1, 0},
+ { XK_Home, XK_ANY_MOD, "\033[H", 0, -1, 0},
+ { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1, 0},
+ { XK_End, ControlMask, "\033[J", -1, 0, 0},
+ { XK_End, ControlMask, "\033[1;5F", +1, 0, 0},
+ { XK_End, ShiftMask, "\033[K", -1, 0, 0},
+ { XK_End, ShiftMask, "\033[1;2F", +1, 0, 0},
+ { XK_End, XK_ANY_MOD, "\033[4~", 0, 0, 0},
+ { XK_Prior, ControlMask, "\033[5;5~", 0, 0, 0},
+ { XK_Prior, ShiftMask, "\033[5;2~", 0, 0, 0},
+ { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0, 0},
+ { XK_Next, ControlMask, "\033[6;5~", 0, 0, 0},
+ { XK_Next, ShiftMask, "\033[6;2~", 0, 0, 0},
+ { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0, 0},
+ { XK_F1, XK_NO_MOD, "\033OP" , 0, 0, 0},
+ { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0, 0},
+ { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0, 0},
+ { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0, 0},
+ { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0, 0},
+ { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0, 0},
+ { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0, 0},
+ { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0, 0},
+ { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0, 0},
+ { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0, 0},
+ { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0, 0},
+ { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0, 0},
+ { XK_F3, XK_NO_MOD, "\033OR" , 0, 0, 0},
+ { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0, 0},
+ { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0, 0},
+ { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0, 0},
+ { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0, 0},
+ { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0, 0},
+ { XK_F4, XK_NO_MOD, "\033OS" , 0, 0, 0},
+ { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0, 0},
+ { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0, 0},
+ { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0, 0},
+ { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0, 0},
+ { XK_F5, XK_NO_MOD, "\033[15~", 0, 0, 0},
+ { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0, 0},
+ { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0, 0},
+ { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0, 0},
+ { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0, 0},
+ { XK_F6, XK_NO_MOD, "\033[17~", 0, 0, 0},
+ { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0, 0},
+ { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0, 0},
+ { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0, 0},
+ { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0, 0},
+ { XK_F7, XK_NO_MOD, "\033[18~", 0, 0, 0},
+ { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0, 0},
+ { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0, 0},
+ { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0, 0},
+ { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0, 0},
+ { XK_F8, XK_NO_MOD, "\033[19~", 0, 0, 0},
+ { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0, 0},
+ { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0, 0},
+ { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0, 0},
+ { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0, 0},
+ { XK_F9, XK_NO_MOD, "\033[20~", 0, 0, 0},
+ { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0, 0},
+ { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0, 0},
+ { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0, 0},
+ { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0, 0},
+ { XK_F10, XK_NO_MOD, "\033[21~", 0, 0, 0},
+ { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0, 0},
+ { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0, 0},
+ { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0, 0},
+ { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0, 0},
+ { XK_F11, XK_NO_MOD, "\033[23~", 0, 0, 0},
+ { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0, 0},
+ { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0, 0},
+ { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0, 0},
+ { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0, 0},
+ { XK_F12, XK_NO_MOD, "\033[24~", 0, 0, 0},
+ { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0, 0},
+ { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0, 0},
+ { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0, 0},
+ { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0, 0},
+ { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0, 0},
+ { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0, 0},
+ { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0, 0},
+ { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0, 0},
+ { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0, 0},
+ { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0, 0},
+ { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0, 0},
+ { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0, 0},
+ { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0, 0},
+ { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0, 0},
+ { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0, 0},
+ { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0, 0},
+ { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0, 0},
+ { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0, 0},
+ { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0, 0},
+ { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0, 0},
+ { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0, 0},
+ { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0, 0},
+ { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0, 0},
+ { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0, 0},
+ { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0, 0},
+ { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0, 0},
+ { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0, 0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+ [SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+ " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
--- /dev/null
+#define _DEFAULT_SOURCE
+#define _XOPEN_SOURCE 700
+#define HAVE_SHADOW_H 1
+
+/* See LICENSE for license details. */
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <locale.h>
+#include <pwd.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <stdint.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <termios.h>
+#include <time.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <X11/Xft/Xft.h>
+#include <X11/XKBlib.h>
+#include <fontconfig/fontconfig.h>
+#include <wchar.h>
+
+#include "arg.h"
+
+char *argv0;
+
+#define Glyph Glyph_
+#define Font Font_
+
+#if defined(__linux)
+ #include <pty.h>
+#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
+ #include <util.h>
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
+ #include <libutil.h>
+#endif
+
+
+/* XEMBED messages */
+#define XEMBED_FOCUS_IN 4
+#define XEMBED_FOCUS_OUT 5
+
+/* Arbitrary sizes */
+#define UTF_INVALID 0xFFFD
+#define UTF_SIZ 4
+#define ESC_BUF_SIZ (128*UTF_SIZ)
+#define ESC_ARG_SIZ 16
+#define STR_BUF_SIZ ESC_BUF_SIZ
+#define STR_ARG_SIZ ESC_ARG_SIZ
+#define XK_ANY_MOD UINT_MAX
+#define XK_NO_MOD 0
+#define XK_SWITCH_MOD (1<<13)
+
+/* macros */
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) < (b) ? (b) : (a))
+#define LEN(a) (sizeof(a) / sizeof(a)[0])
+#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
+#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
+#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d))
+#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
+#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
+#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
+#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL)
+#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
+#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \
+ (a).bg != (b).bg)
+#define IS_SET(flag) ((term.mode & (flag)) != 0)
+#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
+ (t1.tv_nsec-t2.tv_nsec)/1E6)
+#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
+
+#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
+#define IS_TRUECOL(x) (1 << 24 & (x))
+#define TRUERED(x) (((x) & 0xff0000) >> 8)
+#define TRUEGREEN(x) (((x) & 0xff00))
+#define TRUEBLUE(x) (((x) & 0xff) << 8)
+#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - term.scr \
+ + histsize + 1) % histsize] : term.line[(y) - term.scr])
+
+
+enum glyph_attribute {
+ ATTR_NULL = 0,
+ ATTR_BOLD = 1 << 0,
+ ATTR_FAINT = 1 << 1,
+ ATTR_ITALIC = 1 << 2,
+ ATTR_UNDERLINE = 1 << 3,
+ ATTR_BLINK = 1 << 4,
+ ATTR_REVERSE = 1 << 5,
+ ATTR_INVISIBLE = 1 << 6,
+ ATTR_STRUCK = 1 << 7,
+ ATTR_WRAP = 1 << 8,
+ ATTR_WIDE = 1 << 9,
+ ATTR_WDUMMY = 1 << 10,
+ ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+};
+
+enum cursor_movement {
+ CURSOR_SAVE,
+ CURSOR_LOAD
+};
+
+enum cursor_state {
+ CURSOR_DEFAULT = 0,
+ CURSOR_WRAPNEXT = 1,
+ CURSOR_ORIGIN = 2
+};
+
+enum term_mode {
+ MODE_WRAP = 1 << 0,
+ MODE_INSERT = 1 << 1,
+ MODE_APPKEYPAD = 1 << 2,
+ MODE_ALTSCREEN = 1 << 3,
+ MODE_CRLF = 1 << 4,
+ MODE_MOUSEBTN = 1 << 5,
+ MODE_MOUSEMOTION = 1 << 6,
+ MODE_REVERSE = 1 << 7,
+ MODE_KBDLOCK = 1 << 8,
+ MODE_HIDE = 1 << 9,
+ MODE_ECHO = 1 << 10,
+ MODE_APPCURSOR = 1 << 11,
+ MODE_MOUSESGR = 1 << 12,
+ MODE_8BIT = 1 << 13,
+ MODE_BLINK = 1 << 14,
+ MODE_FBLINK = 1 << 15,
+ MODE_FOCUS = 1 << 16,
+ MODE_MOUSEX10 = 1 << 17,
+ MODE_MOUSEMANY = 1 << 18,
+ MODE_BRCKTPASTE = 1 << 19,
+ MODE_PRINT = 1 << 20,
+ MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
+ |MODE_MOUSEMANY,
+};
+
+enum charset {
+ CS_GRAPHIC0,
+ CS_GRAPHIC1,
+ CS_UK,
+ CS_USA,
+ CS_MULTI,
+ CS_GER,
+ CS_FIN
+};
+
+enum escape_state {
+ ESC_START = 1,
+ ESC_CSI = 2,
+ ESC_STR = 4, /* DCS, OSC, PM, APC */
+ ESC_ALTCHARSET = 8,
+ ESC_STR_END = 16, /* a final string was encountered */
+ ESC_TEST = 32, /* Enter in test mode */
+};
+
+enum window_state {
+ WIN_VISIBLE = 1,
+ WIN_FOCUSED = 2
+};
+
+enum selection_mode {
+ SEL_IDLE = 0,
+ SEL_EMPTY = 1,
+ SEL_READY = 2
+};
+
+enum selection_type {
+ SEL_REGULAR = 1,
+ SEL_RECTANGULAR = 2
+};
+
+enum selection_snap {
+ SNAP_WORD = 1,
+ SNAP_LINE = 2
+};
+
+typedef unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned long ulong;
+typedef unsigned short ushort;
+
+typedef uint_least32_t Rune;
+
+typedef XftDraw *Draw;
+typedef XftColor Color;
+
+typedef struct {
+ Rune u; /* character code */
+ ushort mode; /* attribute flags */
+ uint32_t fg; /* foreground */
+ uint32_t bg; /* background */
+} Glyph;
+
+typedef Glyph *Line;
+
+typedef struct {
+ Glyph attr; /* current char attributes */
+ int x;
+ int y;
+ char state;
+} TCursor;
+
+/* CSI Escape sequence structs */
+/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
+typedef struct {
+ char buf[ESC_BUF_SIZ]; /* raw string */
+ int len; /* raw string length */
+ char priv;
+ int arg[ESC_ARG_SIZ];
+ int narg; /* nb of args */
+ char mode[2];
+} CSIEscape;
+
+/* STR Escape sequence structs */
+/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
+typedef struct {
+ char type; /* ESC type ... */
+ char buf[STR_BUF_SIZ]; /* raw string */
+ int len; /* raw string length */
+ char *args[STR_ARG_SIZ];
+ int narg; /* nb of args */
+} STREscape;
+
+/* Purely graphic info */
+typedef struct {
+ Display *dpy;
+ Colormap cmap;
+ Window win;
+ Drawable buf;
+ Atom xembed, wmdeletewin, netwmname, netwmpid;
+ XIM xim;
+ XIC xic;
+ Draw draw;
+ Visual *vis;
+ XSetWindowAttributes attrs;
+ int scr;
+ int isfixed; /* is fixed geometry? */
+ int l, t; /* left and top offset */
+ int gm; /* geometry mask */
+ int tw, th; /* tty width and height */
+ int w, h; /* window width and height */
+ int ch; /* char height */
+ int cw; /* char width */
+ char state; /* focus, redraw, visible */
+ int cursor; /* cursor style */
+} XWindow;
+
+typedef struct {
+ uint b;
+ uint mask;
+ char *s;
+} MouseShortcut;
+
+typedef struct {
+ KeySym k;
+ uint mask;
+ char *s;
+ /* three valued logic variables: 0 indifferent, 1 on, -1 off */
+ signed char appkey; /* application keypad */
+ signed char appcursor; /* application cursor */
+ signed char crlf; /* crlf mode */
+} Key;
+
+typedef struct {
+ int mode;
+ int type;
+ int snap;
+ /*
+ * Selection variables:
+ * nb – normalized coordinates of the beginning of the selection
+ * ne – normalized coordinates of the end of the selection
+ * ob – original coordinates of the beginning of the selection
+ * oe – original coordinates of the end of the selection
+ */
+ struct {
+ int x, y;
+ } nb, ne, ob, oe;
+
+ char *primary, *clipboard;
+ Atom xtarget;
+ int alt;
+ struct timespec tclick1;
+ struct timespec tclick2;
+} Selection;
+
+typedef union {
+ int i;
+ uint ui;
+ float f;
+ const void *v;
+} Arg;
+
+typedef struct {
+ uint mod;
+ KeySym keysym;
+ void (*func)(const Arg *);
+ const Arg arg;
+} Shortcut;
+
+/* function definitions used in config.h */
+static void clipcopy(const Arg *);
+static void clippaste(const Arg *);
+static void kscrolldown(const Arg *);
+static void kscrollup(const Arg *);
+static void numlock(const Arg *);
+static void swapcolors(const Arg *);
+static void selpaste(const Arg *);
+static void xzoom(const Arg *);
+static void xzoomabs(const Arg *);
+static void xzoomreset(const Arg *);
+static void printsel(const Arg *);
+static void printscreen(const Arg *) ;
+static void toggleprinter(const Arg *);
+static void sendbreak(const Arg *);
+
+/* Config.h for applying patches and the configuration. */
+#include "config.h"
+
+/* Internal representation of the screen */
+typedef struct {
+ int row; /* nb row */
+ int col; /* nb col */
+ Line *line; /* screen */
+ Line *alt; /* alternate screen */
+ Line hist[histsize]; /* history buffer */
+ int histi; /* history index */
+ int scr; /* scroll back */
+ int *dirty; /* dirtyness of lines */
+ XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
+ TCursor c; /* cursor */
+ int top; /* top scroll limit */
+ int bot; /* bottom scroll limit */
+ int mode; /* terminal mode flags */
+ int esc; /* escape state flags */
+ char trantbl[4]; /* charset table translation */
+ int charset; /* current charset */
+ int icharset; /* selected charset for sequence */
+ int numlock; /* lock numbers in keyboard */
+ int *tabs;
+} Term;
+
+/* Font structure */
+typedef struct {
+ int height;
+ int width;
+ int ascent;
+ int descent;
+ short lbearing;
+ short rbearing;
+ XftFont *match;
+ FcFontSet *set;
+ FcPattern *pattern;
+} Font;
+
+/* Drawing Context */
+typedef struct {
+ Color col[MAX(MAX(LEN(colorname), LEN(altcolorname)), 256)];
+ Font font, bfont, ifont, ibfont;
+ GC gc;
+} DC;
+
+static void die(const char *, ...);
+static void draw(void);
+static void redraw(void);
+static void drawregion(int, int, int, int);
+static void execsh(void);
+static void stty(void);
+static void sigchld(int);
+static void run(void);
+
+static void csidump(void);
+static void csihandle(void);
+static void csiparse(void);
+static void csireset(void);
+static int eschandle(uchar);
+static void strdump(void);
+static void strhandle(void);
+static void strparse(void);
+static void strreset(void);
+
+static int tattrset(int);
+static void tprinter(char *, size_t);
+static void tdumpsel(void);
+static void tdumpline(int);
+static void tdump(void);
+static void tclearregion(int, int, int, int);
+static void tcursor(int);
+static void tdeletechar(int);
+static void tdeleteline(int);
+static void tinsertblank(int);
+static void tinsertblankline(int);
+static int tlinelen(int);
+static void tmoveto(int, int);
+static void tmoveato(int, int);
+static void tnew(int, int);
+static void tnewline(int);
+static void tputtab(int);
+static void tputc(Rune);
+static void treset(void);
+static void tresize(int, int);
+static void tscrollup(int, int, int);
+static void tscrolldown(int, int, int);
+static void tsetattr(int *, int);
+static void tsetchar(Rune, Glyph *, int, int);
+static void tsetscroll(int, int);
+static void tswapscreen(void);
+static void tsetdirt(int, int);
+static void tsetdirtattr(int);
+static void tsetmode(int, int, int *, int);
+static void tfulldirt(void);
+static void techo(Rune);
+static void tcontrolcode(uchar );
+static void tdectest(char );
+static int32_t tdefcolor(int *, int *, int);
+static void tdeftran(char);
+static inline int match(uint, uint);
+static void ttynew(void);
+static size_t ttyread(void);
+static void ttyresize(void);
+static void ttysend(char *, size_t);
+static void ttywrite(const char *, size_t);
+static void tstrsequence(uchar);
+
+static inline ushort sixd_to_16bit(int);
+static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
+static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
+static void xdrawglyph(Glyph, int, int);
+static void xhints(void);
+static void xclear(int, int, int, int);
+static void xdrawcursor(void);
+static void xinit(void);
+static void xloadcols(void);
+static int xsetcolorname(int, const char *);
+static int xgeommasktogravity(int);
+static int xloadfont(Font *, FcPattern *);
+static void xloadfonts(char *, double);
+static void xsettitle(char *);
+static void xresettitle(void);
+static void xsetpointermotion(int);
+static void xseturgency(int);
+static void xsetsel(char *, Time);
+static void xunloadfont(Font *);
+static void xunloadfonts(void);
+static void xresize(int, int);
+
+static void expose(XEvent *);
+static void visibility(XEvent *);
+static void unmap(XEvent *);
+static char *kmap(KeySym, uint);
+static void kpress(XEvent *);
+static void cmessage(XEvent *);
+static void cresize(int, int);
+static void resize(XEvent *);
+static void focus(XEvent *);
+static void brelease(XEvent *);
+static void bpress(XEvent *);
+static void bmotion(XEvent *);
+static void propnotify(XEvent *);
+static void selnotify(XEvent *);
+static void selclear(XEvent *);
+static void selrequest(XEvent *);
+
+static void selinit(void);
+static void selnormalize(void);
+static inline int selected(int, int);
+static char *getsel(void);
+static void selcopy(Time);
+static void selscroll(int, int);
+static void selsnap(int *, int *, int);
+static int x2col(int);
+static int y2row(int);
+static void getbuttoninfo(XEvent *);
+static void mousereport(XEvent *);
+
+static size_t utf8decode(char *, Rune *, size_t);
+static Rune utf8decodebyte(char, size_t *);
+static size_t utf8encode(Rune, char *);
+static char utf8encodebyte(Rune, size_t);
+static char *utf8strchr(char *s, Rune u);
+static size_t utf8validate(Rune *, size_t);
+
+static ssize_t xwrite(int, const char *, size_t);
+static void *xmalloc(size_t);
+static void *xrealloc(void *, size_t);
+static char *xstrdup(char *);
+
+static void usage(void);
+
+static void (*handler[LASTEvent])(XEvent *) = {
+ [KeyPress] = kpress,
+ [ClientMessage] = cmessage,
+ [ConfigureNotify] = resize,
+ [VisibilityNotify] = visibility,
+ [UnmapNotify] = unmap,
+ [Expose] = expose,
+ [FocusIn] = focus,
+ [FocusOut] = focus,
+ [MotionNotify] = bmotion,
+ [ButtonPress] = bpress,
+ [ButtonRelease] = brelease,
+/*
+ * Uncomment if you want the selection to disappear when you select something
+ * different in another window.
+ */
+/* [SelectionClear] = selclear, */
+ [SelectionNotify] = selnotify,
+/*
+ * PropertyNotify is only turned on when there is some INCR transfer happening
+ * for the selection retrieval.
+ */
+ [PropertyNotify] = propnotify,
+ [SelectionRequest] = selrequest,
+};
+
+/* Globals */
+static DC dc;
+static XWindow xw;
+static Term term;
+static CSIEscape csiescseq;
+static STREscape strescseq;
+static int cmdfd;
+static pid_t pid;
+static Selection sel;
+static int iofd = 1;
+static char **opt_cmd = NULL;
+static char *opt_class = NULL;
+static char *opt_embed = NULL;
+static char *opt_font = NULL;
+static char *opt_io = NULL;
+static char *opt_line = NULL;
+static char *opt_name = NULL;
+static char *opt_title = NULL;
+static int oldbutton = 3; /* button event on startup: 3 = release */
+
+static int usealtcolors = 0; /* 1 to use alternate palette */
+
+static char *usedfont = NULL;
+static double usedfontsize = 0;
+static double defaultfontsize = 0;
+
+static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
+static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
+static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
+static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
+
+char *cwd;
+char *plumber_cmd = "tfetch";
+
+/* Font Ring Cache */
+enum {
+ FRC_NORMAL,
+ FRC_ITALIC,
+ FRC_BOLD,
+ FRC_ITALICBOLD
+};
+
+typedef struct {
+ XftFont *font;
+ int flags;
+ Rune unicodep;
+} Fontcache;
+
+/* Fontcache is an array now. A new font will be appended to the array. */
+static Fontcache frc[16];
+static int frclen = 0;
+
+ssize_t
+xwrite(int fd, const char *s, size_t len)
+{
+ size_t aux = len;
+ ssize_t r;
+
+ while (len > 0) {
+ r = write(fd, s, len);
+ if (r < 0)
+ return r;
+ len -= r;
+ s += r;
+ }
+
+ return aux;
+}
+
+void *
+xmalloc(size_t len)
+{
+ void *p = malloc(len);
+
+ if (!p)
+ die("Out of memory\n");
+
+ return p;
+}
+
+void *
+xrealloc(void *p, size_t len)
+{
+ if ((p = realloc(p, len)) == NULL)
+ die("Out of memory\n");
+
+ return p;
+}
+
+char *
+xstrdup(char *s)
+{
+ if ((s = strdup(s)) == NULL)
+ die("Out of memory\n");
+
+ return s;
+}
+
+size_t
+utf8decode(char *c, Rune *u, size_t clen)
+{
+ size_t i, j, len, type;
+ Rune udecoded;
+
+ *u = UTF_INVALID;
+ if (!clen)
+ return 0;
+ udecoded = utf8decodebyte(c[0], &len);
+ if (!BETWEEN(len, 1, UTF_SIZ))
+ return 1;
+ for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
+ udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
+ if (type != 0)
+ return j;
+ }
+ if (j < len)
+ return 0;
+ *u = udecoded;
+ utf8validate(u, len);
+
+ return len;
+}
+
+Rune
+utf8decodebyte(char c, size_t *i)
+{
+ for (*i = 0; *i < LEN(utfmask); ++(*i))
+ if (((uchar)c & utfmask[*i]) == utfbyte[*i])
+ return (uchar)c & ~utfmask[*i];
+
+ return 0;
+}
+
+size_t
+utf8encode(Rune u, char *c)
+{
+ size_t len, i;
+
+ len = utf8validate(&u, 0);
+ if (len > UTF_SIZ)
+ return 0;
+
+ for (i = len - 1; i != 0; --i) {
+ c[i] = utf8encodebyte(u, 0);
+ u >>= 6;
+ }
+ c[0] = utf8encodebyte(u, len);
+
+ return len;
+}
+
+char
+utf8encodebyte(Rune u, size_t i)
+{
+ return utfbyte[i] | (u & ~utfmask[i]);
+}
+
+char *
+utf8strchr(char *s, Rune u)
+{
+ Rune r;
+ size_t i, j, len;
+
+ len = strlen(s);
+ for (i = 0, j = 0; i < len; i += j) {
+ if (!(j = utf8decode(&s[i], &r, len - i)))
+ break;
+ if (r == u)
+ return &(s[i]);
+ }
+
+ return NULL;
+}
+
+size_t
+utf8validate(Rune *u, size_t i)
+{
+ if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
+ *u = UTF_INVALID;
+ for (i = 1; *u > utfmax[i]; ++i)
+ ;
+
+ return i;
+}
+
+void
+selinit(void)
+{
+ clock_gettime(CLOCK_MONOTONIC, &sel.tclick1);
+ clock_gettime(CLOCK_MONOTONIC, &sel.tclick2);
+ sel.mode = SEL_IDLE;
+ sel.snap = 0;
+ sel.ob.x = -1;
+ sel.primary = NULL;
+ sel.clipboard = NULL;
+ sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
+ if (sel.xtarget == None)
+ sel.xtarget = XA_STRING;
+}
+
+int
+x2col(int x)
+{
+ x -= borderpx;
+ x /= xw.cw;
+
+ return LIMIT(x, 0, term.col-1);
+}
+
+int
+y2row(int y)
+{
+ y -= borderpx;
+ y /= xw.ch;
+
+ return LIMIT(y, 0, term.row-1);
+}
+
+int
+tlinelen(int y)
+{
+ int i = term.col;
+
+ if (TLINE(y)[i - 1].mode & ATTR_WRAP)
+ return i;
+
+ while (i > 0 && TLINE(y)[i - 1].u == ' ')
+ --i;
+
+ return i;
+}
+
+void
+selnormalize(void)
+{
+ int i;
+
+ if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) {
+ sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
+ sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
+ } else {
+ sel.nb.x = MIN(sel.ob.x, sel.oe.x);
+ sel.ne.x = MAX(sel.ob.x, sel.oe.x);
+ }
+ sel.nb.y = MIN(sel.ob.y, sel.oe.y);
+ sel.ne.y = MAX(sel.ob.y, sel.oe.y);
+
+ selsnap(&sel.nb.x, &sel.nb.y, -1);
+ selsnap(&sel.ne.x, &sel.ne.y, +1);
+
+ /* expand selection over line breaks */
+ if (sel.type == SEL_RECTANGULAR)
+ return;
+ i = tlinelen(sel.nb.y);
+ if (i < sel.nb.x)
+ sel.nb.x = i;
+ if (tlinelen(sel.ne.y) <= sel.ne.x)
+ sel.ne.x = term.col - 1;
+}
+
+int
+selected(int x, int y)
+{
+ if (sel.mode == SEL_EMPTY)
+ return 0;
+
+ if (sel.type == SEL_RECTANGULAR)
+ return BETWEEN(y, sel.nb.y, sel.ne.y)
+ && BETWEEN(x, sel.nb.x, sel.ne.x);
+
+ return BETWEEN(y, sel.nb.y, sel.ne.y)
+ && (y != sel.nb.y || x >= sel.nb.x)
+ && (y != sel.ne.y || x <= sel.ne.x);
+}
+
+void
+selsnap(int *x, int *y, int direction)
+{
+ int newx, newy, xt, yt;
+ int delim, prevdelim;
+ Glyph *gp, *prevgp;
+
+ switch (sel.snap) {
+ case SNAP_WORD:
+ /*
+ * Snap around if the word wraps around at the end or
+ * beginning of a line.
+ */
+ prevgp = &TLINE(*y)[*x];
+ prevdelim = ISDELIM(prevgp->u);
+ for (;;) {
+ newx = *x + direction;
+ newy = *y;
+ if (!BETWEEN(newx, 0, term.col - 1)) {
+ newy += direction;
+ newx = (newx + term.col) % term.col;
+ if (!BETWEEN(newy, 0, term.row - 1))
+ break;
+
+ if (direction > 0)
+ yt = *y, xt = *x;
+ else
+ yt = newy, xt = newx;
+ if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
+ break;
+ }
+
+ if (newx >= tlinelen(newy))
+ break;
+
+ gp = &TLINE(newy)[newx];
+ delim = ISDELIM(gp->u);
+ if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
+ || (delim && gp->u != prevgp->u)))
+ break;
+
+ *x = newx;
+ *y = newy;
+ prevgp = gp;
+ prevdelim = delim;
+ }
+ break;
+ case SNAP_LINE:
+ /*
+ * Snap around if the the previous line or the current one
+ * has set ATTR_WRAP at its end. Then the whole next or
+ * previous line will be selected.
+ */
+ *x = (direction < 0) ? 0 : term.col - 1;
+ if (direction < 0) {
+ for (; *y > 0; *y += direction) {
+ if (!(TLINE(*y-1)[term.col-1].mode
+ & ATTR_WRAP)) {
+ break;
+ }
+ }
+ } else if (direction > 0) {
+ for (; *y < term.row-1; *y += direction) {
+ if (!(TLINE(*y)[term.col-1].mode
+ & ATTR_WRAP)) {
+ break;
+ }
+ }
+ }
+ break;
+ }
+}
+
+void
+getbuttoninfo(XEvent *e)
+{
+ unsigned long type;
+ uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
+
+ sel.alt = IS_SET(MODE_ALTSCREEN);
+
+ sel.oe.x = x2col(e->xbutton.x);
+ sel.oe.y = y2row(e->xbutton.y);
+ selnormalize();
+
+ sel.type = SEL_REGULAR;
+ for (type = 1; type < LEN(selmasks); ++type) {
+ if (match(selmasks[type], state)) {
+ sel.type = type;
+ break;
+ }
+ }
+}
+
+void
+mousereport(XEvent *e)
+{
+ int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
+ button = e->xbutton.button, state = e->xbutton.state,
+ len;
+ char buf[40];
+ static int ox, oy;
+
+ /* from urxvt */
+ if (e->xbutton.type == MotionNotify) {
+ if (x == ox && y == oy)
+ return;
+ if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
+ return;
+ /* MOUSE_MOTION: no reporting if no button is pressed */
+ if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
+ return;
+
+ button = oldbutton + 32;
+ ox = x;
+ oy = y;
+ } else {
+ if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
+ button = 3;
+ } else {
+ button -= Button1;
+ if (button >= 3)
+ button += 64 - 3;
+ }
+ if (e->xbutton.type == ButtonPress) {
+ oldbutton = button;
+ ox = x;
+ oy = y;
+ } else if (e->xbutton.type == ButtonRelease) {
+ oldbutton = 3;
+ /* MODE_MOUSEX10: no button release reporting */
+ if (IS_SET(MODE_MOUSEX10))
+ return;
+ if (button == 64 || button == 65)
+ return;
+ }
+ }
+
+ if (!IS_SET(MODE_MOUSEX10)) {
+ button += ((state & ShiftMask ) ? 4 : 0)
+ + ((state & Mod4Mask ) ? 8 : 0)
+ + ((state & ControlMask) ? 16 : 0);
+ }
+
+ if (IS_SET(MODE_MOUSESGR)) {
+ len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
+ button, x+1, y+1,
+ e->xbutton.type == ButtonRelease ? 'm' : 'M');
+ } else if (x < 223 && y < 223) {
+ len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
+ 32+button, 32+x+1, 32+y+1);
+ } else {
+ return;
+ }
+
+ ttywrite(buf, len);
+}
+
+void
+bpress(XEvent *e)
+{
+ struct timespec now;
+ MouseShortcut *ms;
+
+ if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+ mousereport(e);
+ return;
+ }
+
+ for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
+ if (e->xbutton.button == ms->b
+ && match(ms->mask, e->xbutton.state)) {
+ ttysend(ms->s, strlen(ms->s));
+ return;
+ }
+ }
+
+ if (e->xbutton.button == Button1) {
+ clock_gettime(CLOCK_MONOTONIC, &now);
+
+ /* Clear previous selection, logically and visually. */
+ selclear(NULL);
+ sel.mode = SEL_EMPTY;
+ sel.type = SEL_REGULAR;
+ sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
+ sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
+
+ /*
+ * If the user clicks below predefined timeouts specific
+ * snapping behaviour is exposed.
+ */
+ if (TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
+ sel.snap = SNAP_LINE;
+ } else if (TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
+ sel.snap = SNAP_WORD;
+ } else {
+ sel.snap = 0;
+ }
+ selnormalize();
+
+ if (sel.snap != 0)
+ sel.mode = SEL_READY;
+ tsetdirt(sel.nb.y, sel.ne.y);
+ sel.tclick2 = sel.tclick1;
+ sel.tclick1 = now;
+ }
+}
+
+char *
+getsel(void)
+{
+ char *str, *ptr;
+ int y, bufsize, lastx, linelen;
+ Glyph *gp, *last;
+
+ if (sel.ob.x == -1)
+ return NULL;
+
+ bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
+ ptr = str = xmalloc(bufsize);
+
+ /* append every set & selected glyph to the selection */
+ for (y = sel.nb.y; y <= sel.ne.y; y++) {
+ if ((linelen = tlinelen(y)) == 0) {
+ *ptr++ = '\n';
+ continue;
+ }
+
+ if (sel.type == SEL_RECTANGULAR) {
+ gp = &TLINE(y)[sel.nb.x];
+ lastx = sel.ne.x;
+ } else {
+ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
+ lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
+ }
+ last = &TLINE(y)[MIN(lastx, linelen-1)];
+ while (last >= gp && last->u == ' ')
+ --last;
+
+ for ( ; gp <= last; ++gp) {
+ if (gp->mode & ATTR_WDUMMY)
+ continue;
+
+ ptr += utf8encode(gp->u, ptr);
+ }
+
+ /*
+ * Copy and pasting of line endings is inconsistent
+ * in the inconsistent terminal and GUI world.
+ * The best solution seems like to produce '\n' when
+ * something is copied from st and convert '\n' to
+ * '\r', when something to be pasted is received by
+ * st.
+ * FIXME: Fix the computer world.
+ */
+ if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP))
+ *ptr++ = '\n';
+ }
+ *ptr = 0;
+ return str;
+}
+
+void
+selcopy(Time t)
+{
+ xsetsel(getsel(), t);
+}
+
+void
+propnotify(XEvent *e)
+{
+ XPropertyEvent *xpev;
+ Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+
+ xpev = &e->xproperty;
+ if (xpev->state == PropertyNewValue &&
+ (xpev->atom == XA_PRIMARY ||
+ xpev->atom == clipboard)) {
+ selnotify(e);
+ }
+}
+
+void
+selnotify(XEvent *e)
+{
+ ulong nitems, ofs, rem;
+ int format;
+ uchar *data, *last, *repl;
+ Atom type, incratom, property;
+
+ incratom = XInternAtom(xw.dpy, "INCR", 0);
+
+ ofs = 0;
+ if (e->type == SelectionNotify) {
+ property = e->xselection.property;
+ } else if(e->type == PropertyNotify) {
+ property = e->xproperty.atom;
+ } else {
+ return;
+ }
+ if (property == None)
+ return;
+
+ do {
+ if (XGetWindowProperty(xw.dpy, xw.win, property, ofs,
+ BUFSIZ/4, False, AnyPropertyType,
+ &type, &format, &nitems, &rem,
+ &data)) {
+ fprintf(stderr, "Clipboard allocation failed\n");
+ return;
+ }
+
+ if (e->type == PropertyNotify && nitems == 0 && rem == 0) {
+ /*
+ * If there is some PropertyNotify with no data, then
+ * this is the signal of the selection owner that all
+ * data has been transferred. We won't need to receive
+ * PropertyNotify events anymore.
+ */
+ MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask);
+ XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
+ &xw.attrs);
+ }
+
+ if (type == incratom) {
+ /*
+ * Activate the PropertyNotify events so we receive
+ * when the selection owner does send us the next
+ * chunk of data.
+ */
+ MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask);
+ XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
+ &xw.attrs);
+
+ /*
+ * Deleting the property is the transfer start signal.
+ */
+ XDeleteProperty(xw.dpy, xw.win, (int)property);
+ continue;
+ }
+
+ /*
+ * As seen in getsel:
+ * Line endings are inconsistent in the terminal and GUI world
+ * copy and pasting. When receiving some selection data,
+ * replace all '\n' with '\r'.
+ * FIXME: Fix the computer world.
+ */
+ repl = data;
+ last = data + nitems * format / 8;
+ while ((repl = memchr(repl, '\n', last - repl))) {
+ *repl++ = '\r';
+ }
+
+ if (IS_SET(MODE_BRCKTPASTE) && ofs == 0)
+ ttywrite("\033[200~", 6);
+ ttysend((char *)data, nitems * format / 8);
+ if (IS_SET(MODE_BRCKTPASTE) && rem == 0)
+ ttywrite("\033[201~", 6);
+ XFree(data);
+ /* number of 32-bit chunks returned */
+ ofs += nitems * format / 32;
+ } while (rem > 0);
+
+ /*
+ * Deleting the property again tells the selection owner to send the
+ * next data chunk in the property.
+ */
+ XDeleteProperty(xw.dpy, xw.win, (int)property);
+}
+
+void
+selpaste(const Arg *dummy)
+{
+ (void)dummy;
+ XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
+ xw.win, CurrentTime);
+}
+
+void
+clipcopy(const Arg *dummy)
+{
+ (void)dummy;
+ Atom clipboard;
+
+ if (sel.clipboard != NULL)
+ free(sel.clipboard);
+
+ if (sel.primary != NULL) {
+ sel.clipboard = xstrdup(sel.primary);
+ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+ XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
+ }
+}
+
+void
+clippaste(const Arg *dummy)
+{
+ (void)dummy;
+ Atom clipboard;
+
+ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+ XConvertSelection(xw.dpy, clipboard, sel.xtarget, clipboard,
+ xw.win, CurrentTime);
+}
+
+void
+selclear(XEvent *e)
+{
+ (void)e;
+ if (sel.ob.x == -1)
+ return;
+ sel.mode = SEL_IDLE;
+ sel.ob.x = -1;
+ tsetdirt(sel.nb.y, sel.ne.y);
+}
+
+void
+selrequest(XEvent *e)
+{
+ (void)e;
+ XSelectionRequestEvent *xsre;
+ XSelectionEvent xev;
+ Atom xa_targets, string, clipboard;
+ char *seltext;
+
+ xsre = (XSelectionRequestEvent *) e;
+ xev.type = SelectionNotify;
+ xev.requestor = xsre->requestor;
+ xev.selection = xsre->selection;
+ xev.target = xsre->target;
+ xev.time = xsre->time;
+ if (xsre->property == None)
+ xsre->property = xsre->target;
+
+ /* reject */
+ xev.property = None;
+
+ xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
+ if (xsre->target == xa_targets) {
+ /* respond with the supported type */
+ string = sel.xtarget;
+ XChangeProperty(xsre->display, xsre->requestor, xsre->property,
+ XA_ATOM, 32, PropModeReplace,
+ (uchar *) &string, 1);
+ xev.property = xsre->property;
+ } else if (xsre->target == sel.xtarget || xsre->target == XA_STRING) {
+ /*
+ * xith XA_STRING non ascii characters may be incorrect in the
+ * requestor. It is not our problem, use utf8.
+ */
+ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+ if (xsre->selection == XA_PRIMARY) {
+ seltext = sel.primary;
+ } else if (xsre->selection == clipboard) {
+ seltext = sel.clipboard;
+ } else {
+ fprintf(stderr,
+ "Unhandled clipboard selection 0x%lx\n",
+ xsre->selection);
+ return;
+ }
+ if (seltext != NULL) {
+ XChangeProperty(xsre->display, xsre->requestor,
+ xsre->property, xsre->target,
+ 8, PropModeReplace,
+ (uchar *)seltext, strlen(seltext));
+ xev.property = xsre->property;
+ }
+ }
+
+ /* all done, send a notification to the listener */
+ if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev))
+ fprintf(stderr, "Error sending SelectionNotify event\n");
+}
+
+void
+xsetsel(char *str, Time t)
+{
+ free(sel.primary);
+ sel.primary = str;
+
+ XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
+ if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
+ selclear(0);
+
+ clipcopy(NULL);
+}
+
+void
+brelease(XEvent *e)
+{
+ if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+ mousereport(e);
+ return;
+ }
+
+ if (e->xbutton.button == Button2) {
+ selpaste(NULL);
+ } else if (e->xbutton.button == Button3 && !fork()) {
+ exit(execvp("tfetch", (char*[]){ "tfetch", sel.primary, 0 }));
+ } else if (e->xbutton.button == Button1) {
+ if (sel.mode == SEL_READY) {
+ getbuttoninfo(e);
+ selcopy(e->xbutton.time);
+ } else {
+ selclear(NULL);
+ }
+ sel.mode = SEL_IDLE;
+ tsetdirt(sel.nb.y, sel.ne.y);
+ }
+}
+
+void
+bmotion(XEvent *e)
+{
+ int oldey, oldex, oldsby, oldsey;
+
+ if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+ mousereport(e);
+ return;
+ }
+
+ if (!sel.mode)
+ return;
+
+ sel.mode = SEL_READY;
+ oldey = sel.oe.y;
+ oldex = sel.oe.x;
+ oldsby = sel.nb.y;
+ oldsey = sel.ne.y;
+ getbuttoninfo(e);
+
+ if (oldey != sel.oe.y || oldex != sel.oe.x)
+ tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
+}
+
+void
+die(const char *errstr, ...)
+{
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(1);
+}
+
+void
+execsh(void)
+{
+ char **args, *sh, *prog;
+ const struct passwd *pw;
+ char buf[sizeof(long) * 8 + 1];
+
+ errno = 0;
+ if ((pw = getpwuid(getuid())) == NULL) {
+ if (errno)
+ die("getpwuid:%s\n", strerror(errno));
+ else
+ die("who are you?\n");
+ }
+
+ if ((sh = getenv("SHELL")) == NULL)
+ sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
+
+ if (opt_cmd)
+ prog = opt_cmd[0];
+ else if (utmp)
+ prog = utmp;
+ else
+ prog = sh;
+ args = (opt_cmd) ? opt_cmd : (char *[]) {prog, NULL};
+
+ snprintf(buf, sizeof(buf), "%lu", xw.win);
+
+ unsetenv("COLUMNS");
+ unsetenv("LINES");
+ unsetenv("TERMCAP");
+ setenv("LOGNAME", pw->pw_name, 1);
+ setenv("USER", pw->pw_name, 1);
+ setenv("SHELL", sh, 1);
+ setenv("HOME", pw->pw_dir, 1);
+ setenv("TERM", termname, 1);
+ setenv("WINDOWID", buf, 1);
+
+ signal(SIGCHLD, SIG_DFL);
+ signal(SIGHUP, SIG_DFL);
+ signal(SIGINT, SIG_DFL);
+ signal(SIGQUIT, SIG_DFL);
+ signal(SIGTERM, SIG_DFL);
+ signal(SIGALRM, SIG_DFL);
+
+ execvp(prog, args);
+ _exit(1);
+}
+
+void
+sigchld(int a)
+{
+ (void)a;
+
+ int stat;
+ pid_t p;
+
+ if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
+ die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
+
+ if (pid != p)
+ return;
+
+ if (!WIFEXITED(stat) || WEXITSTATUS(stat))
+ die("child finished with error '%d'\n", stat);
+ exit(0);
+}
+
+
+void
+stty(void)
+{
+ char cmd[_POSIX_ARG_MAX], **p, *q, *s;
+ size_t n, siz;
+
+ if ((n = strlen(stty_args)) > sizeof(cmd)-1)
+ die("incorrect stty parameters\n");
+ memcpy(cmd, stty_args, n);
+ q = cmd + n;
+ siz = sizeof(cmd) - n;
+ for (p = opt_cmd; p && (s = *p); ++p) {
+ if ((n = strlen(s)) > siz-1)
+ die("stty parameter length too long\n");
+ *q++ = ' ';
+ memcpy(q, s, n);
+ q += n;
+ siz -= n + 1;
+ }
+ *q = '\0';
+ if (system(cmd) != 0)
+ perror("Couldn't call stty");
+}
+
+void
+ttynew(void)
+{
+ int m, s;
+ struct winsize w = {term.row, term.col, 0, 0};
+
+ if (opt_io) {
+ term.mode |= MODE_PRINT;
+ iofd = (!strcmp(opt_io, "-")) ?
+ 1 : open(opt_io, O_WRONLY | O_CREAT, 0666);
+ if (iofd < 0) {
+ fprintf(stderr, "Error opening %s:%s\n",
+ opt_io, strerror(errno));
+ }
+ }
+
+ if (opt_line) {
+ if ((cmdfd = open(opt_line, O_RDWR)) < 0)
+ die("open line failed: %s\n", strerror(errno));
+ dup2(cmdfd, 0);
+ stty();
+ return;
+ }
+
+ /* seems to work fine on linux, openbsd and freebsd */
+ if (openpty(&m, &s, NULL, NULL, &w) < 0)
+ die("openpty failed: %s\n", strerror(errno));
+
+ switch (pid = fork()) {
+ case -1:
+ die("fork failed\n");
+ break;
+ case 0:
+ close(iofd);
+ setsid(); /* create a new process group */
+ dup2(s, 0);
+ dup2(s, 1);
+ dup2(s, 2);
+ if (ioctl(s, TIOCSCTTY, NULL) < 0)
+ die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
+ close(s);
+ close(m);
+ execsh();
+ break;
+ default:
+ close(s);
+ cmdfd = m;
+ signal(SIGCHLD, sigchld);
+ break;
+ }
+}
+
+size_t
+ttyread(void)
+{
+ static char buf[BUFSIZ];
+ static int buflen = 0;
+ char *ptr;
+ int charsize; /* size of utf8 char in bytes */
+ Rune unicodep;
+ int ret;
+
+ /* append read bytes to unprocessed bytes */
+ if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
+ die("Couldn't read from shell: %s\n", strerror(errno));
+
+ /* process every complete utf8 char */
+ buflen += ret;
+ ptr = buf;
+ while ((charsize = utf8decode(ptr, &unicodep, buflen))) {
+ tputc(unicodep);
+ ptr += charsize;
+ buflen -= charsize;
+ }
+
+ /* keep any uncomplete utf8 char for the next call */
+ memmove(buf, ptr, buflen);
+
+ if (term.scr > 0 && term.scr < histsize-1)
+ term.scr++;
+
+ return ret;
+}
+
+void
+ttywrite(const char *s, size_t n)
+{
+ fd_set wfd, rfd;
+ ssize_t r;
+ size_t lim = 256;
+ Arg arg = (Arg){ .i = term.scr };
+
+ kscrolldown(&arg);
+
+ /*
+ * Remember that we are using a pty, which might be a modem line.
+ * Writing too much will clog the line. That's why we are doing this
+ * dance.
+ * FIXME: Migrate the world to Plan 9.
+ */
+ while (n > 0) {
+ FD_ZERO(&wfd);
+ FD_ZERO(&rfd);
+ FD_SET(cmdfd, &wfd);
+ FD_SET(cmdfd, &rfd);
+
+ /* Check if we can write. */
+ if (pselect(cmdfd+1, &rfd, &wfd, NULL, NULL, NULL) < 0) {
+ if (errno == EINTR)
+ continue;
+ die("select failed: %s\n", strerror(errno));
+ }
+ if (FD_ISSET(cmdfd, &wfd)) {
+ /*
+ * Only write the bytes written by ttywrite() or the
+ * default of 256. This seems to be a reasonable value
+ * for a serial line. Bigger values might clog the I/O.
+ */
+ if ((r = write(cmdfd, s, (n < lim)? n : lim)) < 0)
+ goto write_error;
+ if (r < (ssize_t)n) {
+ /*
+ * We weren't able to write out everything.
+ * This means the buffer is getting full
+ * again. Empty it.
+ */
+ if (n < lim)
+ lim = ttyread();
+ n -= r;
+ s += r;
+ } else {
+ /* All bytes have been written. */
+ break;
+ }
+ }
+ if (FD_ISSET(cmdfd, &rfd))
+ lim = ttyread();
+ }
+ return;
+
+write_error:
+ die("write error on tty: %s\n", strerror(errno));
+}
+
+void
+ttysend(char *s, size_t n)
+{
+ int len;
+ Rune u;
+
+ ttywrite(s, n);
+ if (IS_SET(MODE_ECHO))
+ while ((len = utf8decode(s, &u, n)) > 0) {
+ techo(u);
+ n -= len;
+ s += len;
+ }
+}
+
+void
+ttyresize(void)
+{
+ struct winsize w;
+
+ w.ws_row = term.row;
+ w.ws_col = term.col;
+ w.ws_xpixel = xw.tw;
+ w.ws_ypixel = xw.th;
+ if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
+ fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
+}
+
+int
+tattrset(int attr)
+{
+ int i, j;
+
+ for (i = 0; i < term.row-1; i++) {
+ for (j = 0; j < term.col-1; j++) {
+ if (term.line[i][j].mode & attr)
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+void
+tsetdirt(int top, int bot)
+{
+ int i;
+
+ LIMIT(top, 0, term.row-1);
+ LIMIT(bot, 0, term.row-1);
+
+ for (i = top; i <= bot; i++)
+ term.dirty[i] = 1;
+}
+
+void
+tsetdirtattr(int attr)
+{
+ int i, j;
+
+ for (i = 0; i < term.row-1; i++) {
+ for (j = 0; j < term.col-1; j++) {
+ if (term.line[i][j].mode & attr) {
+ tsetdirt(i, i);
+ break;
+ }
+ }
+ }
+}
+
+void
+tfulldirt(void)
+{
+ tsetdirt(0, term.row-1);
+}
+
+void
+tcursor(int mode)
+{
+ static TCursor c[2];
+ int alt = IS_SET(MODE_ALTSCREEN);
+
+ if (mode == CURSOR_SAVE) {
+ c[alt] = term.c;
+ } else if (mode == CURSOR_LOAD) {
+ term.c = c[alt];
+ tmoveto(c[alt].x, c[alt].y);
+ }
+}
+
+void
+treset(void)
+{
+ uint i;
+
+ term.c = (TCursor){{
+ .mode = ATTR_NULL,
+ .fg = defaultfg,
+ .bg = defaultbg
+ }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
+
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ for (i = tabspaces; i < term.col; i += tabspaces)
+ term.tabs[i] = 1;
+ term.top = 0;
+ term.bot = term.row - 1;
+ term.mode = MODE_WRAP;
+ memset(term.trantbl, CS_USA, sizeof(term.trantbl));
+ term.charset = 0;
+
+ for (i = 0; i < 2; i++) {
+ tmoveto(0, 0);
+ tcursor(CURSOR_SAVE);
+ tclearregion(0, 0, term.col-1, term.row-1);
+ tswapscreen();
+ }
+}
+
+void
+tnew(int col, int row)
+{
+ term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
+ tresize(col, row);
+ term.numlock = 1;
+
+ treset();
+}
+
+void
+tswapscreen(void)
+{
+ Line *tmp = term.line;
+
+ term.line = term.alt;
+ term.alt = tmp;
+ term.mode ^= MODE_ALTSCREEN;
+ tfulldirt();
+}
+
+void
+kscrolldown(const Arg* a)
+{
+ int n = a->i;
+
+ if (n < 0)
+ n = term.row + n;
+
+ if (n > term.scr)
+ n = term.scr;
+
+ if (term.scr > 0) {
+ term.scr -= n;
+ selscroll(0, -n);
+ tfulldirt();
+ }
+}
+
+void
+kscrollup(const Arg* a)
+{
+ int n = a->i;
+
+ if (n < 0)
+ n = term.row + n;
+
+ if (term.scr <= histsize - n) {
+ term.scr += n;
+ selscroll(0, n);
+ tfulldirt();
+ }
+}
+
+void
+tscrolldown(int orig, int n, int copyhist)
+{
+ int i;
+ Line temp;
+
+ LIMIT(n, 0, term.bot-orig+1);
+
+ if (copyhist) {
+ term.histi = (term.histi - 1 + histsize) % histsize;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[term.bot];
+ term.line[term.bot] = temp;
+ }
+
+ tsetdirt(orig, term.bot-n);
+ tclearregion(0, term.bot-n+1, term.col-1, term.bot);
+
+ for (i = term.bot; i >= orig+n; i--) {
+ temp = term.line[i];
+ term.line[i] = term.line[i-n];
+ term.line[i-n] = temp;
+ }
+
+ selscroll(orig, n);
+}
+
+void
+tscrollup(int orig, int n, int copyhist)
+{
+ int i;
+ Line temp;
+
+ LIMIT(n, 0, term.bot-orig+1);
+
+ if (copyhist) {
+ term.histi = (term.histi + 1) % histsize;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[orig];
+ term.line[orig] = temp;
+ }
+
+ tclearregion(0, orig, term.col-1, orig+n-1);
+ tsetdirt(orig+n, term.bot);
+
+ for (i = orig; i <= term.bot-n; i++) {
+ temp = term.line[i];
+ term.line[i] = term.line[i+n];
+ term.line[i+n] = temp;
+ }
+
+ selscroll(orig, -n);
+}
+
+void
+selscroll(int orig, int n)
+{
+ if (sel.ob.x == -1)
+ return;
+
+ if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
+ if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
+ selclear(NULL);
+ return;
+ }
+ if (sel.type == SEL_RECTANGULAR) {
+ if (sel.ob.y < term.top)
+ sel.ob.y = term.top;
+ if (sel.oe.y > term.bot)
+ sel.oe.y = term.bot;
+ } else {
+ if (sel.ob.y < term.top) {
+ sel.ob.y = term.top;
+ sel.ob.x = 0;
+ }
+ if (sel.oe.y > term.bot) {
+ sel.oe.y = term.bot;
+ sel.oe.x = term.col;
+ }
+ }
+ selnormalize();
+ }
+}
+
+void
+tnewline(int first_col)
+{
+ int y = term.c.y;
+
+ if (y == term.bot) {
+ tscrollup(term.top, 1, 1);
+ } else {
+ y++;
+ }
+ tmoveto(first_col ? 0 : term.c.x, y);
+}
+
+void
+csiparse(void)
+{
+ char *p = csiescseq.buf, *np;
+ long int v;
+
+ csiescseq.narg = 0;
+ if (*p == '?') {
+ csiescseq.priv = 1;
+ p++;
+ }
+
+ csiescseq.buf[csiescseq.len] = '\0';
+ while (p < csiescseq.buf+csiescseq.len) {
+ np = NULL;
+ v = strtol(p, &np, 10);
+ if (np == p)
+ v = 0;
+ if (v == LONG_MAX || v == LONG_MIN)
+ v = -1;
+ csiescseq.arg[csiescseq.narg++] = v;
+ p = np;
+ if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
+ break;
+ p++;
+ }
+ csiescseq.mode[0] = *p++;
+ csiescseq.mode[1] = (p < csiescseq.buf+csiescseq.len) ? *p : '\0';
+}
+
+/* for absolute user moves, when decom is set */
+void
+tmoveato(int x, int y)
+{
+ tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
+}
+
+void
+tmoveto(int x, int y)
+{
+ int miny, maxy;
+
+ if (term.c.state & CURSOR_ORIGIN) {
+ miny = term.top;
+ maxy = term.bot;
+ } else {
+ miny = 0;
+ maxy = term.row - 1;
+ }
+ term.c.state &= ~CURSOR_WRAPNEXT;
+ term.c.x = LIMIT(x, 0, term.col-1);
+ term.c.y = LIMIT(y, miny, maxy);
+}
+
+void
+tsetchar(Rune u, Glyph *attr, int x, int y)
+{
+ static char *vt100_0[62] = { /* 0x41 - 0x7e */
+ "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
+ 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
+ "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
+ "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
+ "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
+ "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
+ };
+
+ /*
+ * The table is proudly stolen from rxvt.
+ */
+ if (term.trantbl[term.charset] == CS_GRAPHIC0 &&
+ BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41])
+ utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ);
+
+ if (term.line[y][x].mode & ATTR_WIDE) {
+ if (x+1 < term.col) {
+ term.line[y][x+1].u = ' ';
+ term.line[y][x+1].mode &= ~ATTR_WDUMMY;
+ }
+ } else if (term.line[y][x].mode & ATTR_WDUMMY) {
+ term.line[y][x-1].u = ' ';
+ term.line[y][x-1].mode &= ~ATTR_WIDE;
+ }
+
+ term.dirty[y] = 1;
+ term.line[y][x] = *attr;
+ term.line[y][x].u = u;
+}
+
+void
+tclearregion(int x1, int y1, int x2, int y2)
+{
+ int x, y, temp;
+ Glyph *gp;
+
+ if (x1 > x2)
+ temp = x1, x1 = x2, x2 = temp;
+ if (y1 > y2)
+ temp = y1, y1 = y2, y2 = temp;
+
+ LIMIT(x1, 0, term.col-1);
+ LIMIT(x2, 0, term.col-1);
+ LIMIT(y1, 0, term.row-1);
+ LIMIT(y2, 0, term.row-1);
+
+ for (y = y1; y <= y2; y++) {
+ term.dirty[y] = 1;
+ for (x = x1; x <= x2; x++) {
+ gp = &term.line[y][x];
+ if (selected(x, y))
+ selclear(NULL);
+ gp->fg = term.c.attr.fg;
+ gp->bg = term.c.attr.bg;
+ gp->mode = 0;
+ gp->u = ' ';
+ }
+ }
+}
+
+void
+tdeletechar(int n)
+{
+ int dst, src, size;
+ Glyph *line;
+
+ LIMIT(n, 0, term.col - term.c.x);
+
+ dst = term.c.x;
+ src = term.c.x + n;
+ size = term.col - src;
+ line = term.line[term.c.y];
+
+ memmove(&line[dst], &line[src], size * sizeof(Glyph));
+ tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
+}
+
+void
+tinsertblank(int n)
+{
+ int dst, src, size;
+ Glyph *line;
+
+ LIMIT(n, 0, term.col - term.c.x);
+
+ dst = term.c.x + n;
+ src = term.c.x;
+ size = term.col - dst;
+ line = term.line[term.c.y];
+
+ memmove(&line[dst], &line[src], size * sizeof(Glyph));
+ tclearregion(src, term.c.y, dst - 1, term.c.y);
+}
+
+void
+tinsertblankline(int n)
+{
+ if (BETWEEN(term.c.y, term.top, term.bot))
+ tscrolldown(term.c.y, n, 0);
+}
+
+void
+tdeleteline(int n)
+{
+ if (BETWEEN(term.c.y, term.top, term.bot))
+ tscrollup(term.c.y, n, 0);
+}
+
+int32_t
+tdefcolor(int *attr, int *npar, int l)
+{
+ int32_t idx = -1;
+ uint r, g, b;
+
+ switch (attr[*npar + 1]) {
+ case 2: /* direct color in RGB space */
+ if (*npar + 4 >= l) {
+ fprintf(stderr,
+ "erresc(38): Incorrect number of parameters (%d)\n",
+ *npar);
+ break;
+ }
+ r = attr[*npar + 2];
+ g = attr[*npar + 3];
+ b = attr[*npar + 4];
+ *npar += 4;
+ if (!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
+ fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n",
+ r, g, b);
+ else
+ idx = TRUECOLOR(r, g, b);
+ break;
+ case 5: /* indexed color */
+ if (*npar + 2 >= l) {
+ fprintf(stderr,
+ "erresc(38): Incorrect number of parameters (%d)\n",
+ *npar);
+ break;
+ }
+ *npar += 2;
+ if (!BETWEEN(attr[*npar], 0, 255))
+ fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
+ else
+ idx = attr[*npar];
+ break;
+ case 0: /* implemented defined (only foreground) */
+ case 1: /* transparent */
+ case 3: /* direct color in CMY space */
+ case 4: /* direct color in CMYK space */
+ default:
+ fprintf(stderr,
+ "erresc(38): gfx attr %d unknown\n", attr[*npar]);
+ break;
+ }
+
+ return idx;
+}
+
+void
+tsetattr(int *attr, int l)
+{
+ int i;
+ int32_t idx;
+
+ for (i = 0; i < l; i++) {
+ switch (attr[i]) {
+ case 0:
+ term.c.attr.mode &= ~(
+ ATTR_BOLD |
+ ATTR_FAINT |
+ ATTR_ITALIC |
+ ATTR_UNDERLINE |
+ ATTR_BLINK |
+ ATTR_REVERSE |
+ ATTR_INVISIBLE |
+ ATTR_STRUCK );
+ term.c.attr.fg = defaultfg;
+ term.c.attr.bg = defaultbg;
+ break;
+ case 1:
+ term.c.attr.mode |= ATTR_BOLD;
+ break;
+ case 2:
+ term.c.attr.mode |= ATTR_FAINT;
+ break;
+ case 3:
+ term.c.attr.mode |= ATTR_ITALIC;
+ break;
+ case 4:
+ term.c.attr.mode |= ATTR_UNDERLINE;
+ break;
+ case 5: /* slow blink */
+ /* FALLTHROUGH */
+ case 6: /* rapid blink */
+ term.c.attr.mode |= ATTR_BLINK;
+ break;
+ case 7:
+ term.c.attr.mode |= ATTR_REVERSE;
+ break;
+ case 8:
+ term.c.attr.mode |= ATTR_INVISIBLE;
+ break;
+ case 9:
+ term.c.attr.mode |= ATTR_STRUCK;
+ break;
+ case 22:
+ term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
+ break;
+ case 23:
+ term.c.attr.mode &= ~ATTR_ITALIC;
+ break;
+ case 24:
+ term.c.attr.mode &= ~ATTR_UNDERLINE;
+ break;
+ case 25:
+ term.c.attr.mode &= ~ATTR_BLINK;
+ break;
+ case 27:
+ term.c.attr.mode &= ~ATTR_REVERSE;
+ break;
+ case 28:
+ term.c.attr.mode &= ~ATTR_INVISIBLE;
+ break;
+ case 29:
+ term.c.attr.mode &= ~ATTR_STRUCK;
+ break;
+ case 38:
+ if ((idx = tdefcolor(attr, &i, l)) >= 0)
+ term.c.attr.fg = idx;
+ break;
+ case 39:
+ term.c.attr.fg = defaultfg;
+ break;
+ case 48:
+ if ((idx = tdefcolor(attr, &i, l)) >= 0)
+ term.c.attr.bg = idx;
+ break;
+ case 49:
+ term.c.attr.bg = defaultbg;
+ break;
+ default:
+ if (BETWEEN(attr[i], 30, 37)) {
+ term.c.attr.fg = attr[i] - 30;
+ } else if (BETWEEN(attr[i], 40, 47)) {
+ term.c.attr.bg = attr[i] - 40;
+ } else if (BETWEEN(attr[i], 90, 97)) {
+ term.c.attr.fg = attr[i] - 90 + 8;
+ } else if (BETWEEN(attr[i], 100, 107)) {
+ term.c.attr.bg = attr[i] - 100 + 8;
+ } else {
+ fprintf(stderr,
+ "erresc(default): gfx attr %d unknown\n",
+ attr[i]), csidump();
+ }
+ break;
+ }
+ }
+}
+
+void
+tsetscroll(int t, int b)
+{
+ int temp;
+
+ LIMIT(t, 0, term.row-1);
+ LIMIT(b, 0, term.row-1);
+ if (t > b) {
+ temp = t;
+ t = b;
+ b = temp;
+ }
+ term.top = t;
+ term.bot = b;
+}
+
+void
+tsetmode(int priv, int set, int *args, int narg)
+{
+ int *lim, mode;
+ int alt;
+
+ for (lim = args + narg; args < lim; ++args) {
+ if (priv) {
+ switch (*args) {
+ case 1: /* DECCKM -- Cursor key */
+ MODBIT(term.mode, set, MODE_APPCURSOR);
+ break;
+ case 5: /* DECSCNM -- Reverse video */
+ mode = term.mode;
+ MODBIT(term.mode, set, MODE_REVERSE);
+ if (mode != term.mode)
+ redraw();
+ break;
+ case 6: /* DECOM -- Origin */
+ MODBIT(term.c.state, set, CURSOR_ORIGIN);
+ tmoveato(0, 0);
+ break;
+ case 7: /* DECAWM -- Auto wrap */
+ MODBIT(term.mode, set, MODE_WRAP);
+ break;
+ case 0: /* Error (IGNORED) */
+ case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
+ case 3: /* DECCOLM -- Column (IGNORED) */
+ case 4: /* DECSCLM -- Scroll (IGNORED) */
+ case 8: /* DECARM -- Auto repeat (IGNORED) */
+ case 18: /* DECPFF -- Printer feed (IGNORED) */
+ case 19: /* DECPEX -- Printer extent (IGNORED) */
+ case 42: /* DECNRCM -- National characters (IGNORED) */
+ case 12: /* att610 -- Start blinking cursor (IGNORED) */
+ break;
+ case 25: /* DECTCEM -- Text Cursor Enable Mode */
+ MODBIT(term.mode, !set, MODE_HIDE);
+ break;
+ case 9: /* X10 mouse compatibility mode */
+ xsetpointermotion(0);
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEX10);
+ break;
+ case 1000: /* 1000: report button press */
+ xsetpointermotion(0);
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEBTN);
+ break;
+ case 1002: /* 1002: report motion on button press */
+ xsetpointermotion(0);
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEMOTION);
+ break;
+ case 1003: /* 1003: enable all mouse motions */
+ xsetpointermotion(set);
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEMANY);
+ break;
+ case 1004: /* 1004: send focus events to tty */
+ MODBIT(term.mode, set, MODE_FOCUS);
+ break;
+ case 1006: /* 1006: extended reporting mode */
+ MODBIT(term.mode, set, MODE_MOUSESGR);
+ break;
+ case 1034:
+ MODBIT(term.mode, set, MODE_8BIT);
+ break;
+ case 1049: /* swap screen & set/restore cursor as xterm */
+ if (!allowaltscreen)
+ break;
+ tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+ /* FALLTHROUGH */
+ case 47: /* swap screen */
+ case 1047:
+ if (!allowaltscreen)
+ break;
+ alt = IS_SET(MODE_ALTSCREEN);
+ if (alt) {
+ tclearregion(0, 0, term.col-1,
+ term.row-1);
+ }
+ if (set ^ alt) /* set is always 1 or 0 */
+ tswapscreen();
+ if (*args != 1049)
+ break;
+ /* FALLTHROUGH */
+ case 1048:
+ tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+ break;
+ case 2004: /* 2004: bracketed paste mode */
+ MODBIT(term.mode, set, MODE_BRCKTPASTE);
+ break;
+ /* Not implemented mouse modes. See comments there. */
+ case 1001: /* mouse highlight mode; can hang the
+ terminal by design when implemented. */
+ case 1005: /* UTF-8 mouse mode; will confuse
+ applications not supporting UTF-8
+ and luit. */
+ case 1015: /* urxvt mangled mouse mode; incompatible
+ and can be mistaken for other control
+ codes. */
+ default:
+ fprintf(stderr,
+ "erresc: unknown private set/reset mode %d\n",
+ *args);
+ break;
+ }
+ } else {
+ switch (*args) {
+ case 0: /* Error (IGNORED) */
+ break;
+ case 2: /* KAM -- keyboard action */
+ MODBIT(term.mode, set, MODE_KBDLOCK);
+ break;
+ case 4: /* IRM -- Insertion-replacement */
+ MODBIT(term.mode, set, MODE_INSERT);
+ break;
+ case 12: /* SRM -- Send/Receive */
+ MODBIT(term.mode, !set, MODE_ECHO);
+ break;
+ case 20: /* LNM -- Linefeed/new line */
+ MODBIT(term.mode, set, MODE_CRLF);
+ break;
+ default:
+ fprintf(stderr,
+ "erresc: unknown set/reset mode %d\n",
+ *args);
+ break;
+ }
+ }
+ }
+}
+
+void
+csihandle(void)
+{
+ char buf[40];
+ int len;
+
+ switch (csiescseq.mode[0]) {
+ default:
+ unknown:
+ fprintf(stderr, "erresc: unknown csi ");
+ csidump();
+ /* die(""); */
+ break;
+ case '@': /* ICH -- Insert <n> blank char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblank(csiescseq.arg[0]);
+ break;
+ case 'A': /* CUU -- Cursor <n> Up */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
+ break;
+ case 'B': /* CUD -- Cursor <n> Down */
+ case 'e': /* VPR --Cursor <n> Down */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
+ break;
+ case 'i': /* MC -- Media Copy */
+ switch (csiescseq.arg[0]) {
+ case 0:
+ tdump();
+ break;
+ case 1:
+ tdumpline(term.c.y);
+ break;
+ case 2:
+ tdumpsel();
+ break;
+ case 4:
+ term.mode &= ~MODE_PRINT;
+ break;
+ case 5:
+ term.mode |= MODE_PRINT;
+ break;
+ }
+ break;
+ case 'c': /* DA -- Device Attributes */
+ if (csiescseq.arg[0] == 0)
+ ttywrite(vtiden, sizeof(vtiden) - 1);
+ break;
+ case 'C': /* CUF -- Cursor <n> Forward */
+ case 'a': /* HPR -- Cursor <n> Forward */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
+ break;
+ case 'D': /* CUB -- Cursor <n> Backward */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
+ break;
+ case 'E': /* CNL -- Cursor <n> Down and first col */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y+csiescseq.arg[0]);
+ break;
+ case 'F': /* CPL -- Cursor <n> Up and first col */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y-csiescseq.arg[0]);
+ break;
+ case 'g': /* TBC -- Tabulation clear */
+ switch (csiescseq.arg[0]) {
+ case 0: /* clear current tab stop */
+ term.tabs[term.c.x] = 0;
+ break;
+ case 3: /* clear all the tabs */
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ case 'G': /* CHA -- Move to <col> */
+ case '`': /* HPA */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(csiescseq.arg[0]-1, term.c.y);
+ break;
+ case 'H': /* CUP -- Move to <row> <col> */
+ case 'f': /* HVP */
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], 1);
+ tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
+ break;
+ case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ tputtab(csiescseq.arg[0]);
+ break;
+ case 'J': /* ED -- Clear screen */
+ selclear(NULL);
+ switch (csiescseq.arg[0]) {
+ case 0: /* below */
+ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
+ if (term.c.y < term.row-1) {
+ tclearregion(0, term.c.y+1, term.col-1,
+ term.row-1);
+ }
+ break;
+ case 1: /* above */
+ if (term.c.y > 1)
+ tclearregion(0, 0, term.col-1, term.c.y-1);
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
+ break;
+ case 2: /* all */
+ tclearregion(0, 0, term.col-1, term.row-1);
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ case 'K': /* EL -- Clear line */
+ switch (csiescseq.arg[0]) {
+ case 0: /* right */
+ tclearregion(term.c.x, term.c.y, term.col-1,
+ term.c.y);
+ break;
+ case 1: /* left */
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
+ break;
+ case 2: /* all */
+ tclearregion(0, term.c.y, term.col-1, term.c.y);
+ break;
+ }
+ break;
+ case 'S': /* SU -- Scroll <n> line up */
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrollup(term.top, csiescseq.arg[0], 0);
+ break;
+ case 'T': /* SD -- Scroll <n> line down */
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrolldown(term.top, csiescseq.arg[0], 0);
+ break;
+ case 'L': /* IL -- Insert <n> blank lines */
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblankline(csiescseq.arg[0]);
+ break;
+ case 'l': /* RM -- Reset Mode */
+ tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
+ break;
+ case 'M': /* DL -- Delete <n> lines */
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeleteline(csiescseq.arg[0]);
+ break;
+ case 'X': /* ECH -- Erase <n> char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tclearregion(term.c.x, term.c.y,
+ term.c.x + csiescseq.arg[0] - 1, term.c.y);
+ break;
+ case 'P': /* DCH -- Delete <n> char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeletechar(csiescseq.arg[0]);
+ break;
+ case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ tputtab(-csiescseq.arg[0]);
+ break;
+ case 'd': /* VPA -- Move to <row> */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveato(term.c.x, csiescseq.arg[0]-1);
+ break;
+ case 'h': /* SM -- Set terminal mode */
+ tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
+ break;
+ case 'm': /* SGR -- Terminal attribute (color) */
+ tsetattr(csiescseq.arg, csiescseq.narg);
+ break;
+ case 'n': /* DSR – Device Status Report (cursor position) */
+ if (csiescseq.arg[0] == 6) {
+ len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
+ term.c.y+1, term.c.x+1);
+ ttywrite(buf, len);
+ }
+ break;
+ case 'r': /* DECSTBM -- Set Scrolling Region */
+ if (csiescseq.priv) {
+ goto unknown;
+ } else {
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], term.row);
+ tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
+ tmoveato(0, 0);
+ }
+ break;
+ case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
+ tcursor(CURSOR_SAVE);
+ break;
+ case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
+ tcursor(CURSOR_LOAD);
+ break;
+ case ' ':
+ switch (csiescseq.mode[1]) {
+ case 'q': /* DECSCUSR -- Set Cursor Style */
+ DEFAULT(csiescseq.arg[0], 1);
+ if (!BETWEEN(csiescseq.arg[0], 0, 6)) {
+ goto unknown;
+ }
+ xw.cursor = csiescseq.arg[0];
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ }
+}
+
+void
+csidump(void)
+{
+ int i;
+ uint c;
+
+ printf("ESC[");
+ for (i = 0; i < csiescseq.len; i++) {
+ c = csiescseq.buf[i] & 0xff;
+ if (isprint(c)) {
+ putchar(c);
+ } else if (c == '\n') {
+ printf("(\\n)");
+ } else if (c == '\r') {
+ printf("(\\r)");
+ } else if (c == 0x1b) {
+ printf("(\\e)");
+ } else {
+ printf("(%02x)", c);
+ }
+ }
+ putchar('\n');
+}
+
+void
+csireset(void)
+{
+ memset(&csiescseq, 0, sizeof(csiescseq));
+}
+
+void
+strhandle(void)
+{
+ char *p = NULL;
+ int j, narg, par;
+
+ term.esc &= ~(ESC_STR_END|ESC_STR);
+ strparse();
+ par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0;
+
+ switch (strescseq.type) {
+ case ']': /* OSC -- Operating System Command */
+ switch (par) {
+ case 7:
+ if (narg > 1 && strescseq.args[1])
+ chdir(strescseq.args[1]);
+ return;
+ case 0:
+ case 1:
+ case 2:
+ if (narg > 1)
+ xsettitle(strescseq.args[1]);
+ return;
+ case 4: /* color set */
+ if (narg < 3)
+ break;
+ p = strescseq.args[2];
+ /* FALLTHROUGH */
+ case 104: /* color reset, here p = NULL */
+ j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
+ if (xsetcolorname(j, p)) {
+ fprintf(stderr, "erresc: invalid color %s\n", p);
+ } else {
+ /*
+ * TODO if defaultbg color is changed, borders
+ * are dirty
+ */
+ redraw();
+ }
+ return;
+ }
+ break;
+ case 'k': /* old title set compatibility */
+ xsettitle(strescseq.args[0]);
+ return;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ return;
+ }
+
+ fprintf(stderr, "erresc: unknown str ");
+ strdump();
+}
+
+void
+strparse(void)
+{
+ int c;
+ char *p = strescseq.buf;
+
+ strescseq.narg = 0;
+ strescseq.buf[strescseq.len] = '\0';
+
+ if (*p == '\0')
+ return;
+
+ while (strescseq.narg < STR_ARG_SIZ) {
+ strescseq.args[strescseq.narg++] = p;
+ while ((c = *p) != ';' && c != '\0')
+ ++p;
+ if (c == '\0')
+ return;
+ *p++ = '\0';
+ }
+}
+
+void
+strdump(void)
+{
+ int i;
+ uint c;
+
+ printf("ESC%c", strescseq.type);
+ for (i = 0; i < strescseq.len; i++) {
+ c = strescseq.buf[i] & 0xff;
+ if (c == '\0') {
+ return;
+ } else if (isprint(c)) {
+ putchar(c);
+ } else if (c == '\n') {
+ printf("(\\n)");
+ } else if (c == '\r') {
+ printf("(\\r)");
+ } else if (c == 0x1b) {
+ printf("(\\e)");
+ } else {
+ printf("(%02x)", c);
+ }
+ }
+ printf("ESC\\\n");
+}
+
+void
+strreset(void)
+{
+ memset(&strescseq, 0, sizeof(strescseq));
+}
+
+void
+sendbreak(const Arg *arg)
+{
+ if (tcsendbreak(cmdfd, 0))
+ perror("Error sending break");
+}
+
+void
+tprinter(char *s, size_t len)
+{
+ if (iofd != -1 && xwrite(iofd, s, len) < 0) {
+ fprintf(stderr, "Error writing in %s:%s\n",
+ opt_io, strerror(errno));
+ close(iofd);
+ iofd = -1;
+ }
+}
+
+void
+toggleprinter(const Arg *arg)
+{
+ term.mode ^= MODE_PRINT;
+}
+
+void
+printscreen(const Arg *arg)
+{
+ tdump();
+}
+
+void
+printsel(const Arg *arg)
+{
+ tdumpsel();
+}
+
+void
+tdumpsel(void)
+{
+ char *ptr;
+
+ if ((ptr = getsel())) {
+ tprinter(ptr, strlen(ptr));
+ free(ptr);
+ }
+}
+
+void
+tdumpline(int n)
+{
+ char buf[UTF_SIZ];
+ Glyph *bp, *end;
+
+ bp = &term.line[n][0];
+ end = &bp[MIN(tlinelen(n), term.col) - 1];
+ if (bp != end || bp->u != ' ') {
+ for ( ;bp <= end; ++bp)
+ tprinter(buf, utf8encode(bp->u, buf));
+ }
+ tprinter("\n", 1);
+}
+
+void
+tdump(void)
+{
+ int i;
+
+ for (i = 0; i < term.row; ++i)
+ tdumpline(i);
+}
+
+void
+tputtab(int n)
+{
+ uint x = term.c.x;
+
+ if (n > 0) {
+ while (x < term.col && n--)
+ for (++x; x < term.col && !term.tabs[x]; ++x)
+ /* nothing */ ;
+ } else if (n < 0) {
+ while (x > 0 && n++)
+ for (--x; x > 0 && !term.tabs[x]; --x)
+ /* nothing */ ;
+ }
+ term.c.x = LIMIT(x, 0, term.col-1);
+}
+
+void
+techo(Rune u)
+{
+ if (ISCONTROL(u)) { /* control code */
+ if (u & 0x80) {
+ u &= 0x7f;
+ tputc('^');
+ tputc('[');
+ } else if (u != '\n' && u != '\r' && u != '\t') {
+ u ^= 0x40;
+ tputc('^');
+ }
+ }
+ tputc(u);
+}
+
+void
+tdeftran(char ascii)
+{
+ static char cs[] = "0B";
+ static int vcs[] = {CS_GRAPHIC0, CS_USA};
+ char *p;
+
+ if ((p = strchr(cs, ascii)) == NULL) {
+ fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
+ } else {
+ term.trantbl[term.icharset] = vcs[p - cs];
+ }
+}
+
+void
+tdectest(char c)
+{
+ int x, y;
+
+ if (c == '8') { /* DEC screen alignment test. */
+ for (x = 0; x < term.col; ++x) {
+ for (y = 0; y < term.row; ++y)
+ tsetchar('E', &term.c.attr, x, y);
+ }
+ }
+}
+
+void
+tstrsequence(uchar c)
+{
+ switch (c) {
+ case 0x90: /* DCS -- Device Control String */
+ c = 'P';
+ break;
+ case 0x9f: /* APC -- Application Program Command */
+ c = '_';
+ break;
+ case 0x9e: /* PM -- Privacy Message */
+ c = '^';
+ break;
+ case 0x9d: /* OSC -- Operating System Command */
+ c = ']';
+ break;
+ }
+ strreset();
+ strescseq.type = c;
+ term.esc |= ESC_STR;
+}
+
+void
+tcontrolcode(uchar ascii)
+{
+ switch (ascii) {
+ case '\t': /* HT */
+ tputtab(1);
+ return;
+ case '\b': /* BS */
+ tmoveto(term.c.x-1, term.c.y);
+ return;
+ case '\r': /* CR */
+ tmoveto(0, term.c.y);
+ return;
+ case '\f': /* LF */
+ case '\v': /* VT */
+ case '\n': /* LF */
+ /* go to first col if the mode is set */
+ tnewline(IS_SET(MODE_CRLF));
+ return;
+ case '\a': /* BEL */
+ if (term.esc & ESC_STR_END) {
+ /* backwards compatibility to xterm */
+ strhandle();
+ } else {
+ if (!(xw.state & WIN_FOCUSED))
+ xseturgency(1);
+ if (bellvolume)
+ XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
+ }
+ break;
+ case '\033': /* ESC */
+ csireset();
+ term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
+ term.esc |= ESC_START;
+ return;
+ case '\016': /* SO (LS1 -- Locking shift 1) */
+ case '\017': /* SI (LS0 -- Locking shift 0) */
+ term.charset = 1 - (ascii - '\016');
+ return;
+ case '\032': /* SUB */
+ tsetchar('?', &term.c.attr, term.c.x, term.c.y);
+ /* FALLTHRU */
+ case '\030': /* CAN */
+ csireset();
+ break;
+ case '\005': /* ENQ (IGNORED) */
+ case '\000': /* NUL (IGNORED) */
+ case '\021': /* XON (IGNORED) */
+ case '\023': /* XOFF (IGNORED) */
+ case 0177: /* DEL (IGNORED) */
+ return;
+ case 0x80: /* TODO: PAD */
+ case 0x81: /* TODO: HOP */
+ case 0x82: /* TODO: BPH */
+ case 0x83: /* TODO: NBH */
+ case 0x84: /* TODO: IND */
+ break;
+ case 0x85: /* NEL -- Next line */
+ tnewline(1); /* always go to first col */
+ break;
+ case 0x86: /* TODO: SSA */
+ case 0x87: /* TODO: ESA */
+ break;
+ case 0x88: /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ break;
+ case 0x89: /* TODO: HTJ */
+ case 0x8a: /* TODO: VTS */
+ case 0x8b: /* TODO: PLD */
+ case 0x8c: /* TODO: PLU */
+ case 0x8d: /* TODO: RI */
+ case 0x8e: /* TODO: SS2 */
+ case 0x8f: /* TODO: SS3 */
+ case 0x91: /* TODO: PU1 */
+ case 0x92: /* TODO: PU2 */
+ case 0x93: /* TODO: STS */
+ case 0x94: /* TODO: CCH */
+ case 0x95: /* TODO: MW */
+ case 0x96: /* TODO: SPA */
+ case 0x97: /* TODO: EPA */
+ case 0x98: /* TODO: SOS */
+ case 0x99: /* TODO: SGCI */
+ break;
+ case 0x9a: /* DECID -- Identify Terminal */
+ ttywrite(vtiden, sizeof(vtiden) - 1);
+ break;
+ case 0x9b: /* TODO: CSI */
+ case 0x9c: /* TODO: ST */
+ break;
+ case 0x90: /* DCS -- Device Control String */
+ case 0x9d: /* OSC -- Operating System Command */
+ case 0x9e: /* PM -- Privacy Message */
+ case 0x9f: /* APC -- Application Program Command */
+ tstrsequence(ascii);
+ return;
+ }
+ /* only CAN, SUB, \a and C1 chars interrupt a sequence */
+ term.esc &= ~(ESC_STR_END|ESC_STR);
+}
+
+/*
+ * returns 1 when the sequence is finished and it hasn't to read
+ * more characters for this sequence, otherwise 0
+ */
+int
+eschandle(uchar ascii)
+{
+ switch (ascii) {
+ case '[':
+ term.esc |= ESC_CSI;
+ return 0;
+ case '#':
+ term.esc |= ESC_TEST;
+ return 0;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ case ']': /* OSC -- Operating System Command */
+ case 'k': /* old title set compatibility */
+ tstrsequence(ascii);
+ return 0;
+ case 'n': /* LS2 -- Locking shift 2 */
+ case 'o': /* LS3 -- Locking shift 3 */
+ term.charset = 2 + (ascii - 'n');
+ break;
+ case '(': /* GZD4 -- set primary charset G0 */
+ case ')': /* G1D4 -- set secondary charset G1 */
+ case '*': /* G2D4 -- set tertiary charset G2 */
+ case '+': /* G3D4 -- set quaternary charset G3 */
+ term.icharset = ascii - '(';
+ term.esc |= ESC_ALTCHARSET;
+ return 0;
+ case 'D': /* IND -- Linefeed */
+ if (term.c.y == term.bot) {
+ tscrollup(term.top, 1, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y+1);
+ }
+ break;
+ case 'E': /* NEL -- Next line */
+ tnewline(1); /* always go to first col */
+ break;
+ case 'H': /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ break;
+ case 'M': /* RI -- Reverse index */
+ if (term.c.y == term.top) {
+ tscrolldown(term.top, 1, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y-1);
+ }
+ break;
+ case 'Z': /* DECID -- Identify Terminal */
+ ttywrite(vtiden, sizeof(vtiden) - 1);
+ break;
+ case 'c': /* RIS -- Reset to inital state */
+ treset();
+ xresettitle();
+ xloadcols();
+ break;
+ case '=': /* DECPAM -- Application keypad */
+ term.mode |= MODE_APPKEYPAD;
+ break;
+ case '>': /* DECPNM -- Normal keypad */
+ term.mode &= ~MODE_APPKEYPAD;
+ break;
+ case '7': /* DECSC -- Save Cursor */
+ tcursor(CURSOR_SAVE);
+ break;
+ case '8': /* DECRC -- Restore Cursor */
+ tcursor(CURSOR_LOAD);
+ break;
+ case '\\': /* ST -- String Terminator */
+ if (term.esc & ESC_STR_END)
+ strhandle();
+ break;
+ default:
+ fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
+ (uchar) ascii, isprint(ascii)? ascii:'.');
+ break;
+ }
+ return 1;
+}
+
+void
+tputc(Rune u)
+{
+ char c[UTF_SIZ];
+ int control;
+ int width, len;
+ Glyph *gp;
+
+ control = ISCONTROL(u);
+ len = utf8encode(u, c);
+ if (!control && (width = wcwidth(u)) == -1) {
+ memcpy(c, "\357\277\275", 4); /* UTF_INVALID */
+ width = 1;
+ }
+
+ if (IS_SET(MODE_PRINT))
+ tprinter(c, len);
+
+ /*
+ * STR sequence must be checked before anything else
+ * because it uses all following characters until it
+ * receives a ESC, a SUB, a ST or any other C1 control
+ * character.
+ */
+ if (term.esc & ESC_STR) {
+ if (u == '\a' || u == 030 || u == 032 || u == 033 ||
+ ISCONTROLC1(u)) {
+ term.esc &= ~(ESC_START|ESC_STR);
+ term.esc |= ESC_STR_END;
+ } else if (strescseq.len + len < sizeof(strescseq.buf) - 1) {
+ memmove(&strescseq.buf[strescseq.len], c, len);
+ strescseq.len += len;
+ return;
+ } else {
+ /*
+ * Here is a bug in terminals. If the user never sends
+ * some code to stop the str or esc command, then st
+ * will stop responding. But this is better than
+ * silently failing with unknown characters. At least
+ * then users will report back.
+ *
+ * In the case users ever get fixed, here is the code:
+ */
+ /*
+ * term.esc = 0;
+ * strhandle();
+ */
+ return;
+ }
+ }
+
+ /*
+ * Actions of control codes must be performed as soon they arrive
+ * because they can be embedded inside a control sequence, and
+ * they must not cause conflicts with sequences.
+ */
+ if (control) {
+ tcontrolcode(u);
+ /*
+ * control codes are not shown ever
+ */
+ return;
+ } else if (term.esc & ESC_START) {
+ if (term.esc & ESC_CSI) {
+ csiescseq.buf[csiescseq.len++] = u;
+ if (BETWEEN(u, 0x40, 0x7E)
+ || csiescseq.len >= \
+ sizeof(csiescseq.buf)-1) {
+ term.esc = 0;
+ csiparse();
+ csihandle();
+ }
+ return;
+ } else if (term.esc & ESC_ALTCHARSET) {
+ tdeftran(u);
+ } else if (term.esc & ESC_TEST) {
+ tdectest(u);
+ } else {
+ if (!eschandle(u))
+ return;
+ /* sequence already finished */
+ }
+ term.esc = 0;
+ /*
+ * All characters which form part of a sequence are not
+ * printed
+ */
+ return;
+ }
+ if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
+ selclear(NULL);
+
+ gp = &term.line[term.c.y][term.c.x];
+ if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
+ gp->mode |= ATTR_WRAP;
+ tnewline(1);
+ gp = &term.line[term.c.y][term.c.x];
+ }
+
+ if (IS_SET(MODE_INSERT) && term.c.x+width < term.col)
+ memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
+
+ if (term.c.x+width > term.col) {
+ tnewline(1);
+ gp = &term.line[term.c.y][term.c.x];
+ }
+
+ tsetchar(u, &term.c.attr, term.c.x, term.c.y);
+
+ if (width == 2) {
+ gp->mode |= ATTR_WIDE;
+ if (term.c.x+1 < term.col) {
+ gp[1].u = '\0';
+ gp[1].mode = ATTR_WDUMMY;
+ }
+ }
+ if (term.c.x+width < term.col) {
+ tmoveto(term.c.x+width, term.c.y);
+ } else {
+ term.c.state |= CURSOR_WRAPNEXT;
+ }
+}
+
+void
+tresize(int col, int row)
+{
+ int i, j;
+ int minrow = MIN(row, term.row);
+ int mincol = MIN(col, term.col);
+ int *bp;
+ TCursor c;
+
+ if (col < 1 || row < 1) {
+ fprintf(stderr,
+ "tresize: error resizing to %dx%d\n", col, row);
+ return;
+ }
+
+ /*
+ * slide screen to keep cursor where we expect it -
+ * tscrollup would work here, but we can optimize to
+ * memmove because we're freeing the earlier lines
+ */
+ for (i = 0; i <= term.c.y - row; i++) {
+ free(term.line[i]);
+ free(term.alt[i]);
+ }
+ /* ensure that both src and dst are not NULL */
+ if (i > 0) {
+ memmove(term.line, term.line + i, row * sizeof(Line));
+ memmove(term.alt, term.alt + i, row * sizeof(Line));
+ }
+ for (i += row; i < term.row; i++) {
+ free(term.line[i]);
+ free(term.alt[i]);
+ }
+
+ /* resize to new width */
+ term.specbuf = xrealloc(term.specbuf, col * sizeof(XftGlyphFontSpec));
+
+ /* resize to new height */
+ term.line = xrealloc(term.line, row * sizeof(Line));
+ term.alt = xrealloc(term.alt, row * sizeof(Line));
+ term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
+
+ for (i = 0; i < histsize; i++) {
+ term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
+ for (j = mincol; j < col; j++) {
+ term.hist[i][j] = term.c.attr;
+ term.hist[i][j].u = ' ';
+ }
+ }
+
+ /* resize each row to new width, zero-pad if needed */
+ for (i = 0; i < minrow; i++) {
+ term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
+ term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
+ }
+
+ /* allocate any new rows */
+ for (/* i == minrow */; i < row; i++) {
+ term.line[i] = xmalloc(col * sizeof(Glyph));
+ term.alt[i] = xmalloc(col * sizeof(Glyph));
+ }
+ if (col > term.col) {
+ bp = term.tabs + term.col;
+
+ memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ while (--bp > term.tabs && !*bp)
+ /* nothing */ ;
+ for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
+ *bp = 1;
+ }
+ /* update terminal size */
+ term.col = col;
+ term.row = row;
+ /* reset scrolling region */
+ tsetscroll(0, row-1);
+ /* make use of the LIMIT in tmoveto */
+ tmoveto(term.c.x, term.c.y);
+ /* Clearing both screens (it makes dirty all lines) */
+ c = term.c;
+ for (i = 0; i < 2; i++) {
+ if (mincol < col && 0 < minrow) {
+ tclearregion(mincol, 0, col - 1, minrow - 1);
+ }
+ if (0 < col && minrow < row) {
+ tclearregion(0, minrow, col - 1, row - 1);
+ }
+ tswapscreen();
+ tcursor(CURSOR_LOAD);
+ }
+ term.c = c;
+}
+
+void
+xresize(int col, int row)
+{
+ xw.tw = MAX(1, col * xw.cw);
+ xw.th = MAX(1, row * xw.ch);
+
+ XFreePixmap(xw.dpy, xw.buf);
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
+ DefaultDepth(xw.dpy, xw.scr));
+ XftDrawChange(xw.draw, xw.buf);
+ xclear(0, 0, xw.w, xw.h);
+}
+
+ushort
+sixd_to_16bit(int x)
+{
+ return x == 0 ? 0 : 0x3737 + 0x2828 * x;
+}
+
+int
+xloadcolor(int i, const char *name, Color *ncolor)
+{
+ XRenderColor color = { .alpha = 0xffff };
+
+ if (!name) {
+ if (BETWEEN(i, 16, 255)) { /* 256 color */
+ if (i < 6*6*6+16) { /* same colors as xterm */
+ color.red = sixd_to_16bit( ((i-16)/36)%6 );
+ color.green = sixd_to_16bit( ((i-16)/6) %6 );
+ color.blue = sixd_to_16bit( ((i-16)/1) %6 );
+ } else { /* greyscale */
+ color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16));
+ color.green = color.blue = color.red;
+ }
+ return XftColorAllocValue(xw.dpy, xw.vis,
+ xw.cmap, &color, ncolor);
+ } else
+ name = colorname[i];
+ }
+
+ return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
+}
+
+void
+xloadcols(void)
+{
+ int i;
+ static int loaded;
+ Color *cp;
+
+ if (loaded) {
+ for (cp = dc.col; cp < &dc.col[LEN(dc.col)]; ++cp)
+ XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
+ }
+
+ for (i = 0; i < LEN(dc.col); i++)
+ if (!xloadcolor(i, NULL, &dc.col[i])) {
+ if (colorname[i])
+ die("Could not allocate color '%s'\n", colorname[i]);
+ else
+ die("Could not allocate color %d\n", i);
+ }
+ loaded = 1;
+}
+
+int
+xsetcolorname(int x, const char *name)
+{
+ Color ncolor;
+
+ if (!BETWEEN(x, 0, LEN(dc.col)))
+ return 1;
+
+
+ if (!xloadcolor(x, name, &ncolor))
+ return 1;
+
+ XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
+ dc.col[x] = ncolor;
+
+ return 0;
+}
+
+/*
+ * Absolute coordinates.
+ */
+void
+xclear(int x1, int y1, int x2, int y2)
+{
+ XftDrawRect(xw.draw,
+ &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
+ x1, y1, x2-x1, y2-y1);
+}
+
+void
+xhints(void)
+{
+ XClassHint class = {opt_name ? opt_name : termname,
+ opt_class ? opt_class : termname};
+ XWMHints wm = {.flags = InputHint, .input = 1};
+ XSizeHints *sizeh = NULL;
+
+ sizeh = XAllocSizeHints();
+
+ sizeh->flags = PSize | PResizeInc | PBaseSize;
+ sizeh->height = xw.h;
+ sizeh->width = xw.w;
+ sizeh->height_inc = xw.ch;
+ sizeh->width_inc = xw.cw;
+ sizeh->base_height = 2 * borderpx;
+ sizeh->base_width = 2 * borderpx;
+ if (xw.isfixed) {
+ sizeh->flags |= PMaxSize | PMinSize;
+ sizeh->min_width = sizeh->max_width = xw.w;
+ sizeh->min_height = sizeh->max_height = xw.h;
+ }
+ if (xw.gm & (XValue|YValue)) {
+ sizeh->flags |= USPosition | PWinGravity;
+ sizeh->x = xw.l;
+ sizeh->y = xw.t;
+ sizeh->win_gravity = xgeommasktogravity(xw.gm);
+ }
+
+ XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
+ &class);
+ XFree(sizeh);
+}
+
+int
+xgeommasktogravity(int mask)
+{
+ switch (mask & (XNegative|YNegative)) {
+ case 0:
+ return NorthWestGravity;
+ case XNegative:
+ return NorthEastGravity;
+ case YNegative:
+ return SouthWestGravity;
+ }
+
+ return SouthEastGravity;
+}
+
+int
+xloadfont(Font *f, FcPattern *pattern)
+{
+ FcPattern *match;
+ FcResult result;
+ XGlyphInfo extents;
+
+ match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);
+ if (!match)
+ return 1;
+
+ if (!(f->match = XftFontOpenPattern(xw.dpy, match))) {
+ FcPatternDestroy(match);
+ return 1;
+ }
+
+ XftTextExtentsUtf8(xw.dpy, f->match,
+ (const FcChar8 *) ascii_printable,
+ strlen(ascii_printable), &extents);
+
+ f->set = NULL;
+ f->pattern = FcPatternDuplicate(pattern);
+
+ f->ascent = f->match->ascent;
+ f->descent = f->match->descent;
+ f->lbearing = 0;
+ f->rbearing = f->match->max_advance_width;
+
+ f->height = f->ascent + f->descent;
+ f->width = DIVCEIL(extents.xOff, strlen(ascii_printable));
+
+ return 0;
+}
+
+void
+xloadfonts(char *fontstr, double fontsize)
+{
+ FcPattern *pattern;
+ double fontval;
+ float ceilf(float);
+
+ if (fontstr[0] == '-') {
+ pattern = XftXlfdParse(fontstr, False, False);
+ } else {
+ pattern = FcNameParse((FcChar8 *)fontstr);
+ }
+
+ if (!pattern)
+ die("st: can't open font %s\n", fontstr);
+
+ if (fontsize > 1) {
+ FcPatternDel(pattern, FC_PIXEL_SIZE);
+ FcPatternDel(pattern, FC_SIZE);
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
+ usedfontsize = fontsize;
+ } else {
+ if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = fontval;
+ } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = -1;
+ } else {
+ /*
+ * Default font size is 12, if none given. This is to
+ * have a known usedfontsize value.
+ */
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
+ usedfontsize = 12;
+ }
+ defaultfontsize = usedfontsize;
+ }
+
+ if (xloadfont(&dc.font, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ if (usedfontsize < 0) {
+ FcPatternGetDouble(dc.font.match->pattern,
+ FC_PIXEL_SIZE, 0, &fontval);
+ usedfontsize = fontval;
+ if (fontsize == 0)
+ defaultfontsize = fontval;
+ }
+
+ /* Setting character width and height. */
+ xw.cw = ceilf(dc.font.width * cwscale);
+ xw.ch = ceilf(dc.font.height * chscale);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
+ if (xloadfont(&dc.ifont, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ FcPatternDel(pattern, FC_WEIGHT);
+ FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
+ if (xloadfont(&dc.ibfont, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
+ if (xloadfont(&dc.bfont, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ FcPatternDestroy(pattern);
+}
+
+void
+xunloadfont(Font *f)
+{
+ XftFontClose(xw.dpy, f->match);
+ FcPatternDestroy(f->pattern);
+ if (f->set)
+ FcFontSetDestroy(f->set);
+}
+
+void
+xunloadfonts(void)
+{
+ /* Free the loaded fonts in the font cache. */
+ while (frclen > 0)
+ XftFontClose(xw.dpy, frc[--frclen].font);
+
+ xunloadfont(&dc.font);
+ xunloadfont(&dc.bfont);
+ xunloadfont(&dc.ifont);
+ xunloadfont(&dc.ibfont);
+}
+
+void
+xzoom(const Arg *arg)
+{
+ Arg larg;
+
+ larg.f = usedfontsize + arg->f;
+ xzoomabs(&larg);
+}
+
+void
+xzoomabs(const Arg *arg)
+{
+ xunloadfonts();
+ xloadfonts(usedfont, arg->f);
+ cresize(0, 0);
+ ttyresize();
+ redraw();
+ xhints();
+}
+
+void
+xzoomreset(const Arg *arg)
+{
+ Arg larg;
+
+ if (defaultfontsize > 0) {
+ larg.f = defaultfontsize;
+ xzoomabs(&larg);
+ }
+}
+
+void
+xinit(void)
+{
+ XGCValues gcvalues;
+ Cursor cursor;
+ Window parent;
+ pid_t thispid = getpid();
+ XColor xmousefg, xmousebg;
+
+ if (!(xw.dpy = XOpenDisplay(NULL)))
+ die("Can't open display\n");
+ xw.scr = XDefaultScreen(xw.dpy);
+ xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+
+ /* font */
+ if (!FcInit())
+ die("Could not init fontconfig.\n");
+
+ usedfont = (opt_font == NULL)? font : opt_font;
+ xloadfonts(usedfont, 0);
+
+ /* colors */
+ xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+ xloadcols();
+
+ /* adjust fixed window geometry */
+ xw.w = 2 * borderpx + term.col * xw.cw;
+ xw.h = 2 * borderpx + term.row * xw.ch;
+ if (xw.gm & XNegative)
+ xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
+ if (xw.gm & YNegative)
+ xw.t += DisplayHeight(xw.dpy, xw.scr) - xw.h - 2;
+
+ /* Events */
+ xw.attrs.background_pixel = dc.col[defaultbg].pixel;
+ xw.attrs.border_pixel = dc.col[defaultbg].pixel;
+ xw.attrs.bit_gravity = NorthWestGravity;
+ xw.attrs.event_mask = FocusChangeMask | KeyPressMask
+ | ExposureMask | VisibilityChangeMask | StructureNotifyMask
+ | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
+ xw.attrs.colormap = xw.cmap;
+
+ if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
+ parent = XRootWindow(xw.dpy, xw.scr);
+ xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
+ xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
+ xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
+ | CWEventMask | CWColormap, &xw.attrs);
+
+ memset(&gcvalues, 0, sizeof(gcvalues));
+ gcvalues.graphics_exposures = False;
+ dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
+ &gcvalues);
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
+ DefaultDepth(xw.dpy, xw.scr));
+ XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
+ XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
+
+ /* Xft rendering context */
+ xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
+
+ /* input methods */
+ if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
+ XSetLocaleModifiers("@im=local");
+ if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
+ XSetLocaleModifiers("@im=");
+ if ((xw.xim = XOpenIM(xw.dpy,
+ NULL, NULL, NULL)) == NULL) {
+ die("XOpenIM failed. Could not open input"
+ " device.\n");
+ }
+ }
+ }
+ xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
+ | XIMStatusNothing, XNClientWindow, xw.win,
+ XNFocusWindow, xw.win, NULL);
+ if (xw.xic == NULL)
+ die("XCreateIC failed. Could not obtain input method.\n");
+
+ /* white cursor, black outline */
+ cursor = XCreateFontCursor(xw.dpy, mouseshape);
+ XDefineCursor(xw.dpy, xw.win, cursor);
+
+ if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) {
+ xmousefg.red = 0xffff;
+ xmousefg.green = 0xffff;
+ xmousefg.blue = 0xffff;
+ }
+
+ if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) {
+ xmousebg.red = 0x0000;
+ xmousebg.green = 0x0000;
+ xmousebg.blue = 0x0000;
+ }
+
+ XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg);
+
+ xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
+ xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
+ xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
+ XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
+
+ xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
+ XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
+ PropModeReplace, (uchar *)&thispid, 1);
+
+ xresettitle();
+ XMapWindow(xw.dpy, xw.win);
+ xhints();
+ XSync(xw.dpy, False);
+}
+
+int
+xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
+{
+ float winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch, xp, yp;
+ ushort mode, prevmode = USHRT_MAX;
+ Font *font = &dc.font;
+ int frcflags = FRC_NORMAL;
+ float runewidth = xw.cw;
+ Rune rune;
+ FT_UInt glyphidx;
+ FcResult fcres;
+ FcPattern *fcpattern, *fontpattern;
+ FcFontSet *fcsets[] = { NULL };
+ FcCharSet *fccharset;
+ int i, f, numspecs = 0;
+
+ for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
+ /* Fetch rune and mode for current glyph. */
+ rune = glyphs[i].u;
+ mode = glyphs[i].mode;
+
+ /* Skip dummy wide-character spacing. */
+ if (mode == ATTR_WDUMMY)
+ continue;
+
+ /* Determine font for glyph if different from previous glyph. */
+ if (prevmode != mode) {
+ prevmode = mode;
+ font = &dc.font;
+ frcflags = FRC_NORMAL;
+ runewidth = xw.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f);
+ if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) {
+ font = &dc.ibfont;
+ frcflags = FRC_ITALICBOLD;
+ } else if (mode & ATTR_ITALIC) {
+ font = &dc.ifont;
+ frcflags = FRC_ITALIC;
+ } else if (mode & ATTR_BOLD) {
+ font = &dc.bfont;
+ frcflags = FRC_BOLD;
+ }
+ yp = winy + font->ascent;
+ }
+
+ /* Lookup character index with default font. */
+ glyphidx = XftCharIndex(xw.dpy, font->match, rune);
+ if (glyphidx) {
+ specs[numspecs].font = font->match;
+ specs[numspecs].glyph = glyphidx;
+ specs[numspecs].x = (short)xp;
+ specs[numspecs].y = (short)yp;
+ xp += runewidth;
+ numspecs++;
+ continue;
+ }
+
+ /* Fallback on font cache, search the font cache for match. */
+ for (f = 0; f < frclen; f++) {
+ glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune);
+ /* Everything correct. */
+ if (glyphidx && frc[f].flags == frcflags)
+ break;
+ /* We got a default font for a not found glyph. */
+ if (!glyphidx && frc[f].flags == frcflags
+ && frc[f].unicodep == rune) {
+ break;
+ }
+ }
+
+ /* Nothing was found. Use fontconfig to find matching font. */
+ if (f >= frclen) {
+ if (!font->set)
+ font->set = FcFontSort(0, font->pattern,
+ 1, 0, &fcres);
+ fcsets[0] = font->set;
+
+ /*
+ * Nothing was found in the cache. Now use
+ * some dozen of Fontconfig calls to get the
+ * font for one single character.
+ *
+ * Xft and fontconfig are design failures.
+ */
+ fcpattern = FcPatternDuplicate(font->pattern);
+ fccharset = FcCharSetCreate();
+
+ FcCharSetAddChar(fccharset, rune);
+ FcPatternAddCharSet(fcpattern, FC_CHARSET,
+ fccharset);
+ FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
+
+ FcConfigSubstitute(0, fcpattern,
+ FcMatchPattern);
+ FcDefaultSubstitute(fcpattern);
+
+ fontpattern = FcFontSetMatch(0, fcsets, 1,
+ fcpattern, &fcres);
+
+ /*
+ * Overwrite or create the new cache entry.
+ */
+ if (frclen >= LEN(frc)) {
+ frclen = LEN(frc) - 1;
+ XftFontClose(xw.dpy, frc[frclen].font);
+ frc[frclen].unicodep = 0;
+ }
+
+ frc[frclen].font = XftFontOpenPattern(xw.dpy,
+ fontpattern);
+ frc[frclen].flags = frcflags;
+ frc[frclen].unicodep = rune;
+
+ glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune);
+
+ f = frclen;
+ frclen++;
+
+ FcPatternDestroy(fcpattern);
+ FcCharSetDestroy(fccharset);
+ }
+
+ specs[numspecs].font = frc[f].font;
+ specs[numspecs].glyph = glyphidx;
+ specs[numspecs].x = (short)xp;
+ specs[numspecs].y = (short)yp;
+ xp += runewidth;
+ numspecs++;
+ }
+
+ return numspecs;
+}
+
+void
+xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
+{
+ int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
+ int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
+ width = charlen * xw.cw;
+ Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
+ XRenderColor colfg, colbg;
+ XRectangle r;
+
+ /* Determine foreground and background colors based on mode. */
+ if (base.fg == defaultfg) {
+ if (base.mode & ATTR_ITALIC)
+ base.fg = defaultitalic;
+ else if ((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD))
+ base.fg = defaultitalic;
+ else if (base.mode & ATTR_UNDERLINE)
+ base.fg = defaultunderline;
+ }
+
+ if (IS_TRUECOL(base.fg)) {
+ colfg.alpha = 0xffff;
+ colfg.red = TRUERED(base.fg);
+ colfg.green = TRUEGREEN(base.fg);
+ colfg.blue = TRUEBLUE(base.fg);
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
+ fg = &truefg;
+ } else {
+ fg = &dc.col[base.fg];
+ }
+
+ if (IS_TRUECOL(base.bg)) {
+ colbg.alpha = 0xffff;
+ colbg.green = TRUEGREEN(base.bg);
+ colbg.red = TRUERED(base.bg);
+ colbg.blue = TRUEBLUE(base.bg);
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
+ bg = &truebg;
+ } else {
+ bg = &dc.col[base.bg];
+ }
+
+ /* Change basic system colors [0-7] to bright system colors [8-15] */
+ if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7))
+ fg = &dc.col[base.fg];
+
+ if (IS_SET(MODE_REVERSE)) {
+ if (fg == &dc.col[defaultfg]) {
+ fg = &dc.col[defaultbg];
+ } else {
+ colfg.red = ~fg->color.red;
+ colfg.green = ~fg->color.green;
+ colfg.blue = ~fg->color.blue;
+ colfg.alpha = fg->color.alpha;
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
+ &revfg);
+ fg = &revfg;
+ }
+
+ if (bg == &dc.col[defaultbg]) {
+ bg = &dc.col[defaultfg];
+ } else {
+ colbg.red = ~bg->color.red;
+ colbg.green = ~bg->color.green;
+ colbg.blue = ~bg->color.blue;
+ colbg.alpha = bg->color.alpha;
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
+ &revbg);
+ bg = &revbg;
+ }
+ }
+
+ if (base.mode & ATTR_REVERSE) {
+ temp = fg;
+ fg = bg;
+ bg = temp;
+ }
+
+ if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) {
+ colfg.red = fg->color.red / 2;
+ colfg.green = fg->color.green / 2;
+ colfg.blue = fg->color.blue / 2;
+ XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
+ fg = &revfg;
+ }
+
+ if (base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
+ fg = bg;
+
+ if (base.mode & ATTR_INVISIBLE)
+ fg = bg;
+
+ /* Intelligent cleaning up of the borders. */
+ if (x == 0) {
+ xclear(0, (y == 0)? 0 : winy, borderpx,
+ winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
+ }
+ if (x + charlen >= term.col) {
+ xclear(winx + width, (y == 0)? 0 : winy, xw.w,
+ ((y >= term.row-1)? xw.h : (winy + xw.ch)));
+ }
+ if (y == 0)
+ xclear(winx, 0, winx + width, borderpx);
+ if (y == term.row-1)
+ xclear(winx, winy + xw.ch, winx + width, xw.h);
+
+ /* Clean up the region we want to draw to. */
+ XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
+
+ /* Set the clip region because Xft is sometimes dirty. */
+ r.x = 0;
+ r.y = 0;
+ r.height = xw.ch;
+ r.width = width;
+ XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
+
+ /* Render the glyphs. */
+ XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
+
+ /* Render underline and strikethrough. */
+ if (base.mode & ATTR_UNDERLINE) {
+ XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
+ width, 1);
+ }
+
+ if (base.mode & ATTR_STRUCK) {
+ XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
+ width, 1);
+ }
+
+ /* Reset clip to none. */
+ XftDrawSetClip(xw.draw, 0);
+}
+
+void
+xdrawglyph(Glyph g, int x, int y)
+{
+ int numspecs;
+ XftGlyphFontSpec spec;
+
+ numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
+ xdrawglyphfontspecs(&spec, g, numspecs, x, y);
+}
+
+void
+xdrawcursor(void)
+{
+ static int oldx = 0, oldy = 0;
+ int curx;
+ Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs}, og;
+ int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
+ Color drawcol;
+
+ LIMIT(oldx, 0, term.col-1);
+ LIMIT(oldy, 0, term.row-1);
+
+ curx = term.c.x;
+
+ /* adjust position if in dummy */
+ if (term.line[oldy][oldx].mode & ATTR_WDUMMY)
+ oldx--;
+ if (term.line[term.c.y][curx].mode & ATTR_WDUMMY)
+ curx--;
+
+ /* remove the old cursor */
+ og = term.line[oldy][oldx];
+ if (ena_sel && selected(oldx, oldy))
+ og.mode ^= ATTR_REVERSE;
+ xdrawglyph(og, oldx, oldy);
+
+ g.u = term.line[term.c.y][term.c.x].u;
+
+ /*
+ * Select the right color for the right mode.
+ */
+ if (IS_SET(MODE_REVERSE)) {
+ g.mode |= ATTR_REVERSE;
+ g.bg = defaultfg;
+ if (ena_sel && selected(term.c.x, term.c.y)) {
+ drawcol = dc.col[defaultcs];
+ g.fg = defaultrcs;
+ } else {
+ drawcol = dc.col[defaultrcs];
+ g.fg = defaultcs;
+ }
+ } else {
+ if (ena_sel && selected(term.c.x, term.c.y)) {
+ drawcol = dc.col[defaultrcs];
+ g.fg = defaultfg;
+ g.bg = defaultrcs;
+ } else {
+ drawcol = dc.col[defaultcs];
+ }
+ }
+
+ if (IS_SET(MODE_HIDE))
+ return;
+
+ /* draw the new one */
+ if (xw.state & WIN_FOCUSED) {
+ switch (xw.cursor) {
+ case 7: /* st extension: snowman */
+ utf8decode("☃", &g.u, UTF_SIZ);
+ /* FALLTHRU */
+ case 0: /* Blinking Block */
+ case 1: /* Blinking Block (Default) */
+ case 2: /* Steady Block */
+ g.mode |= term.line[term.c.y][curx].mode & ATTR_WIDE;
+ xdrawglyph(g, term.c.x, term.c.y);
+ break;
+ case 3: /* Blinking Underline */
+ case 4: /* Steady Underline */
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + curx * xw.cw,
+ borderpx + (term.c.y + 1) * xw.ch - \
+ cursorthickness,
+ xw.cw, cursorthickness);
+ break;
+ case 5: /* Blinking bar */
+ case 6: /* Steady bar */
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + curx * xw.cw,
+ borderpx + term.c.y * xw.ch,
+ cursorthickness, xw.ch);
+ break;
+ }
+ } else {
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + curx * xw.cw,
+ borderpx + term.c.y * xw.ch,
+ xw.cw - 1, 1);
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + curx * xw.cw,
+ borderpx + term.c.y * xw.ch,
+ 1, xw.ch - 1);
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + (curx + 1) * xw.cw - 1,
+ borderpx + term.c.y * xw.ch,
+ 1, xw.ch - 1);
+ XftDrawRect(xw.draw, &drawcol,
+ borderpx + curx * xw.cw,
+ borderpx + (term.c.y + 1) * xw.ch - 1,
+ xw.cw, 1);
+ }
+ oldx = curx, oldy = term.c.y;
+}
+
+
+void
+xsettitle(char *p)
+{
+ XTextProperty prop;
+
+ Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
+ &prop);
+ XSetWMName(xw.dpy, xw.win, &prop);
+ XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
+ XFree(prop.value);
+}
+
+void
+xresettitle(void)
+{
+ xsettitle(opt_title ? opt_title : "st");
+}
+
+void
+redraw(void)
+{
+ tfulldirt();
+ draw();
+}
+
+void
+draw(void)
+{
+ drawregion(0, 0, term.col, term.row);
+ XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
+ xw.h, 0, 0);
+ XSetForeground(xw.dpy, dc.gc,
+ dc.col[IS_SET(MODE_REVERSE)?
+ defaultfg : defaultbg].pixel);
+}
+
+void
+drawregion(int x1, int y1, int x2, int y2)
+{
+ int i, x, y, ox, numspecs;
+ Glyph base, new;
+ XftGlyphFontSpec *specs;
+ int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
+
+ if (!(xw.state & WIN_VISIBLE))
+ return;
+
+ for (y = y1; y < y2; y++) {
+ if (!term.dirty[y])
+ continue;
+
+ term.dirty[y] = 0;
+
+ specs = term.specbuf;
+ numspecs = xmakeglyphfontspecs(specs, &TLINE(y)[x1], x2 - x1, x1, y);
+
+ i = ox = 0;
+ for (x = x1; x < x2 && i < numspecs; x++) {
+ new = TLINE(y)[x];
+ if (new.mode == ATTR_WDUMMY)
+ continue;
+ if (ena_sel && selected(x, y))
+ new.mode ^= ATTR_REVERSE;
+ if (i > 0 && ATTRCMP(base, new)) {
+ xdrawglyphfontspecs(specs, base, i, ox, y);
+ specs += i;
+ numspecs -= i;
+ i = 0;
+ }
+ if (i == 0) {
+ ox = x;
+ base = new;
+ }
+ i++;
+ }
+ if (i > 0)
+ xdrawglyphfontspecs(specs, base, i, ox, y);
+ }
+ if (term.scr == 0)
+ xdrawcursor();
+}
+
+void
+expose(XEvent *ev)
+{
+ redraw();
+}
+
+void
+visibility(XEvent *ev)
+{
+ XVisibilityEvent *e = &ev->xvisibility;
+
+ MODBIT(xw.state, e->state != VisibilityFullyObscured, WIN_VISIBLE);
+}
+
+void
+unmap(XEvent *ev)
+{
+ xw.state &= ~WIN_VISIBLE;
+}
+
+void
+xsetpointermotion(int set)
+{
+ MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
+ XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
+}
+
+void
+xseturgency(int add)
+{
+ XWMHints *h = XGetWMHints(xw.dpy, xw.win);
+
+ MODBIT(h->flags, add, XUrgencyHint);
+ XSetWMHints(xw.dpy, xw.win, h);
+ XFree(h);
+}
+
+void
+focus(XEvent *ev)
+{
+ XFocusChangeEvent *e = &ev->xfocus;
+
+ if (e->mode == NotifyGrab)
+ return;
+
+ if (ev->type == FocusIn) {
+ XSetICFocus(xw.xic);
+ xw.state |= WIN_FOCUSED;
+ xseturgency(0);
+ if (IS_SET(MODE_FOCUS))
+ ttywrite("\033[I", 3);
+ } else {
+ XUnsetICFocus(xw.xic);
+ xw.state &= ~WIN_FOCUSED;
+ if (IS_SET(MODE_FOCUS))
+ ttywrite("\033[O", 3);
+ }
+}
+
+int
+match(uint mask, uint state)
+{
+ return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
+}
+
+void
+numlock(const Arg *dummy)
+{
+ term.numlock ^= 1;
+}
+
+void
+swapcolors(const Arg *dummy)
+{
+ (void)dummy;
+
+ usealtcolors = !usealtcolors;
+ xloadcols();
+ redraw();
+}
+
+char*
+kmap(KeySym k, uint state)
+{
+ Key *kp;
+ int i;
+
+ /* Check for mapped keys out of X11 function keys. */
+ for (i = 0; i < LEN(mappedkeys); i++) {
+ if (mappedkeys[i] == k)
+ break;
+ }
+ if (i == LEN(mappedkeys)) {
+ if ((k & 0xFFFF) < 0xFD00)
+ return NULL;
+ }
+
+ for (kp = key; kp < key + LEN(key); kp++) {
+ if (kp->k != k)
+ continue;
+
+ if (!match(kp->mask, state))
+ continue;
+
+ if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
+ continue;
+ if (term.numlock && kp->appkey == 2)
+ continue;
+
+ if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
+ continue;
+
+ if (IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
+ continue;
+
+ return kp->s;
+ }
+
+ return NULL;
+}
+
+void
+kpress(XEvent *ev)
+{
+ XKeyEvent *e = &ev->xkey;
+ KeySym ksym;
+ char buf[32], *customkey;
+ int len;
+ Rune c;
+ Status status;
+ Shortcut *bp;
+
+ if (IS_SET(MODE_KBDLOCK))
+ return;
+
+ len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
+ /* 1. shortcuts */
+ for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
+ if (ksym == bp->keysym && match(bp->mod, e->state)) {
+ bp->func(&(bp->arg));
+ return;
+ }
+ }
+
+ /* 2. custom keys from config.h */
+ if ((customkey = kmap(ksym, e->state))) {
+ ttysend(customkey, strlen(customkey));
+ return;
+ }
+
+ /* 3. composed string from input method */
+ if (len == 0)
+ return;
+ if (len == 1 && e->state & Mod1Mask) {
+ if (IS_SET(MODE_8BIT)) {
+ if (*buf < 0177) {
+ c = *buf | 0x80;
+ len = utf8encode(c, buf);
+ }
+ } else {
+ buf[1] = buf[0];
+ buf[0] = '\033';
+ len = 2;
+ }
+ }
+ ttysend(buf, len);
+}
+
+
+void
+cmessage(XEvent *e)
+{
+ /*
+ * See xembed specs
+ * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
+ */
+ if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
+ if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
+ xw.state |= WIN_FOCUSED;
+ xseturgency(0);
+ } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
+ xw.state &= ~WIN_FOCUSED;
+ }
+ } else if (e->xclient.data.l[0] == xw.wmdeletewin) {
+ /* Send SIGHUP to shell */
+ kill(pid, SIGHUP);
+ exit(0);
+ }
+}
+
+void
+cresize(int width, int height)
+{
+ int col, row;
+
+ if (width != 0)
+ xw.w = width;
+ if (height != 0)
+ xw.h = height;
+
+ col = (xw.w - 2 * borderpx) / xw.cw;
+ row = (xw.h - 2 * borderpx) / xw.ch;
+
+ tresize(col, row);
+ xresize(col, row);
+}
+
+void
+resize(XEvent *e)
+{
+ if (e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
+ return;
+
+ cresize(e->xconfigure.width, e->xconfigure.height);
+ ttyresize();
+}
+
+void
+run(void)
+{
+ XEvent ev;
+ int w = xw.w, h = xw.h;
+ fd_set rfd;
+ int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
+ struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
+ long deltatime;
+
+ /* Waiting for window mapping */
+ do {
+ XNextEvent(xw.dpy, &ev);
+ /*
+ * This XFilterEvent call is required because of XOpenIM. It
+ * does filter out the key event and some client message for
+ * the input method too.
+ */
+ if (XFilterEvent(&ev, None))
+ continue;
+ if (ev.type == ConfigureNotify) {
+ w = ev.xconfigure.width;
+ h = ev.xconfigure.height;
+ }
+ } while (ev.type != MapNotify);
+
+ cresize(w, h);
+ ttynew();
+ ttyresize();
+
+ clock_gettime(CLOCK_MONOTONIC, &last);
+ lastblink = last;
+
+ for (xev = actionfps;;) {
+ FD_ZERO(&rfd);
+ FD_SET(cmdfd, &rfd);
+ FD_SET(xfd, &rfd);
+
+ if (pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
+ if (errno == EINTR)
+ continue;
+ die("select failed: %s\n", strerror(errno));
+ }
+ if (FD_ISSET(cmdfd, &rfd)) {
+ ttyread();
+ if (blinktimeout) {
+ blinkset = tattrset(ATTR_BLINK);
+ if (!blinkset)
+ MODBIT(term.mode, 0, MODE_BLINK);
+ }
+ }
+
+ if (FD_ISSET(xfd, &rfd))
+ xev = actionfps;
+
+ clock_gettime(CLOCK_MONOTONIC, &now);
+ drawtimeout.tv_sec = 0;
+ drawtimeout.tv_nsec = (1000 * 1E6)/ xfps;
+ tv = &drawtimeout;
+
+ dodraw = 0;
+ if (blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
+ tsetdirtattr(ATTR_BLINK);
+ term.mode ^= MODE_BLINK;
+ lastblink = now;
+ dodraw = 1;
+ }
+ deltatime = TIMEDIFF(now, last);
+ if (deltatime > 1000 / (xev ? xfps : actionfps)) {
+ dodraw = 1;
+ last = now;
+ }
+
+ if (dodraw) {
+ while (XPending(xw.dpy)) {
+ XNextEvent(xw.dpy, &ev);
+ if (XFilterEvent(&ev, None))
+ continue;
+ if (handler[ev.type])
+ (handler[ev.type])(&ev);
+ }
+
+ draw();
+ XFlush(xw.dpy);
+
+ if (xev && !FD_ISSET(xfd, &rfd))
+ xev--;
+ if (!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
+ if (blinkset) {
+ if (TIMEDIFF(now, lastblink) \
+ > blinktimeout) {
+ drawtimeout.tv_nsec = 1000;
+ } else {
+ drawtimeout.tv_nsec = (1E6 * \
+ (blinktimeout - \
+ TIMEDIFF(now,
+ lastblink)));
+ }
+ drawtimeout.tv_sec = \
+ drawtimeout.tv_nsec / 1E9;
+ drawtimeout.tv_nsec %= (long)1E9;
+ } else {
+ tv = NULL;
+ }
+ }
+ }
+ }
+}
+
+void
+usage(void)
+{
+ die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]"
+ " [-n name] [-o file]\n"
+ " [-T title] [-t title] [-w windowid]"
+ " [[-e] command [args ...]]\n"
+ " %s [-aiv] [-c class] [-f font] [-g geometry]"
+ " [-n name] [-o file]\n"
+ " [-T title] [-t title] [-w windowid] -l line"
+ " [stty_args ...]\n", argv0, argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+ uint cols = 80, rows = 24;
+
+ xw.l = xw.t = 0;
+ xw.isfixed = False;
+ xw.cursor = cursorshape;
+
+ ARGBEGIN {
+ case 'a':
+ allowaltscreen = 0;
+ break;
+ case 'c':
+ opt_class = EARGF(usage());
+ break;
+ case 'e':
+ if (argc > 0)
+ --argc, ++argv;
+ goto run;
+ case 'f':
+ opt_font = EARGF(usage());
+ break;
+ case 'g':
+ xw.gm = XParseGeometry(EARGF(usage()),
+ &xw.l, &xw.t, &cols, &rows);
+ break;
+ case 'i':
+ xw.isfixed = 1;
+ break;
+ case 'o':
+ opt_io = EARGF(usage());
+ break;
+ case 'l':
+ opt_line = EARGF(usage());
+ break;
+ case 'n':
+ opt_name = EARGF(usage());
+ break;
+ case 't':
+ case 'T':
+ opt_title = EARGF(usage());
+ break;
+ case 'w':
+ opt_embed = EARGF(usage());
+ break;
+ default:
+ usage();
+ } ARGEND;
+
+run:
+ if (argc > 0) {
+ /* eat all remaining arguments */
+ opt_cmd = argv;
+ if (!opt_title && !opt_line)
+ opt_title = basename(xstrdup(argv[0]));
+ }
+ setlocale(LC_CTYPE, "");
+ XSetLocaleModifiers("");
+ tnew(MAX(cols, 1), MAX(rows, 1));
+ xinit();
+ selinit();
+ run();
+
+ return 0;
+}
+
BINDIR = $(OUTDIR)/bin
CC = cc
-CFLAGS = -O2 --std=c99 -pedantic -Wall -Wextra -Werror
+CFLAGS = -O2 --std=c99 -pedantic -Wall -Wextra -Werror -Wno-unused-result -Wno-sign-compare -Wno-type-limits -Wno-unused-parameter
CPPFLAGS = -Iinc/ -I/usr/include/freetype2
AR = ar
int Net_Dial(char* dialstr);
void Net_Serve(char* dialstr, void (*on_client)(int cfd));
+/*
+ Message Bus Interface
+*/
+typedef struct MBusConnection MBusConnection;
+typedef struct MBusMessage MBusMessage;
+typedef uint16_t MBusIdentifier;
+typedef uint16_t MBusTopic;
+
+MBusConnection* MBus_Connect(char* dialstr);
+void MBus_Disconnect(MBusConnection* conn);
+void MBus_Subscribe(MBusConnection* conn, MBusTopic topic);
+void MBus_Unsubscribe(MBusConnection* conn, MBusTopic topic);
+void MBus_MsgSend(MBusConnection* conn, MBusMessage* msg);
+
+MBusMessage* MBus_CreateMessage(MBusIdentifier dest);
+void MBus_PutBool(MBusMessage* msg, bool val);
+void MBus_PutInt(MBusMessage* msg, int64_t val);
+void MBus_PutFloat(MBusMessage* msg, double val);
+void MBus_PutString(MBusMessage* msg, double val);
+
/*
Basic Runtime Facilities
*/
--- /dev/null
+/**
+ @file
+ @brief Collection of useful C types and functions.
+ @author Michael D. Lowis
+ @license BSD 2-clause License
+*/
+#define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 700
+#define AUTOLIB(n) \
+ int __autolib_##n __attribute__ ((weak));
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+
+static char* strmcat(char* first, ...) {
+ va_list args;
+ /* calculate the length of the final string */
+ size_t len = strlen(first);
+ va_start(args, first);
+ for (char* s = NULL; (s = va_arg(args, char*));)
+ len += strlen(s);
+ va_end(args);
+ /* allocate the final string and copy the args into it */
+ char *str = malloc(len+1), *curr = str;
+ while (first && *first) *(curr++) = *(first++);
+ va_start(args, first);
+ for (char* s = NULL; (s = va_arg(args, char*));)
+ while (s && *s) *(curr++) = *(s++);
+ va_end(args);
+ /* null terminate and return */
+ *curr = '\0';
+ return str;
+}
+
+/* Option Parsing
+ *
+ * This following macros implement a simple POSIX-style option parsing strategy.
+ * They are heavily influenced and inspired by the arg.h file from suckless.org
+ * (http://git.suckless.org/libsl/tree/arg.h). That file is in turn inspired by
+ * the corresponding macros defined in plan9.
+ *
+ * The interface assumes that the main function will have the following
+ * prototype:
+ *
+ * int main(int argc, char** argv);
+ *
+ * An example usage of the interface would look something like the follwoing:
+ *
+ * char* ARGV0;
+ * int main(int argc, char** argv) {
+ * OPTBEGIN {
+ * case 'a': printf("Simple option\n"); break;
+ * case 'b': printf("Option with arg: %s\n", OPTARG()); break;
+ * default: printf("Unknown option!\n");
+ * } OPTEND;
+ * return 0;
+ * }
+ */
+
+/* This variable contains the value of argv[0] so that it can be referenced
+ * again once the option parsing is done. This variable must be defined by the
+ * program.
+ *
+ * NOTE: Ensure that you define this variable with external linkage (i.e. not
+ * static) */
+extern char* ARGV0;
+
+/* This is a helper function used by the following macros to parse the next
+ * option from the command line. */
+static inline char* _getopt_(int* p_argc, char*** p_argv) {
+ if (!(*p_argv)[0][1] && !(*p_argv)[1]) {
+ return (char*)0;
+ } else if ((*p_argv)[0][1]) {
+ return &(*p_argv)[0][1];
+ } else {
+ *p_argv = *p_argv + 1;
+ *p_argc = *p_argc - 1;
+ return (*p_argv)[0];
+ }
+}
+
+/* This macro is almost identical to the ARGBEGIN macro from suckless.org. If
+ * it ain't broke, don't fix it. */
+#define OPTBEGIN \
+ for ( \
+ ARGV0 = *argv, argc--, argv++; \
+ argv[0] && argv[0][1] && argv[0][0] == '-'; \
+ argc--, argv++ \
+ ) { \
+ int brk_; char argc_ , **argv_, *optarg_; \
+ if (argv[0][1] == '-' && !argv[0][2]) { \
+ (void)optarg_; argv++, argc--; break; \
+ } \
+ for (brk_=0, argv[0]++, argv_=argv; argv[0][0] && !brk_; argv[0]++) { \
+ if (argv_ != argv) break; \
+ argc_ = argv[0][0]; \
+ switch (argc_)
+
+/* Terminate the option parsing. */
+#define OPTEND }}
+
+/* Get the current option character */
+#define OPTC() (argc_)
+
+/* Get an argument from the command line and return it as a string. If no
+ * argument is available, this macro returns NULL */
+#define OPTARG() \
+ (optarg_ = _getopt_(&argc,&argv), brk_ = (optarg_!=0), optarg_)
+
+/* Get an argument from the command line and return it as a string. If no
+ * argument is available, this macro executes the provided code. If that code
+ * returns, then abort is called. */
+#define EOPTARG(code) \
+ (optarg_ = _getopt_(&argc,&argv), \
+ (!optarg_ ? ((code), abort(), (char*)0) : (brk_ = 1, optarg_)))
+
+/* Helper macro to recognize number options */
+#define OPTNUM \
+ case '0': \
+ case '1': \
+ case '2': \
+ case '3': \
+ case '4': \
+ case '5': \
+ case '6': \
+ case '7': \
+ case '8': \
+ case '9'
+
+/* Helper macro to recognize "long" options ala GNU style. */
+#define OPTLONG \
+ case '-'
+
+/* Miscellaneous
+ *****************************************************************************/
+#ifndef nelem
+ #define nelem(x) \
+ (sizeof(x)/sizeof((x)[0]))
+#endif
+
+#ifndef container_of
+ #define container_of(obj, type, member) \
+ ((type*)((uintptr_t)obj - offsetof(type, member)))
+#endif
+
+#ifndef min
+ #define min(x,y) \
+ ((x) < (y) ? (x) : (y))
+#endif
+
+#ifndef max
+ #define max(x,y) \
+ ((x) > (y) ? (x) : (y))
+#endif
+
+#pragma GCC diagnostic pop
--- /dev/null
+/**
+ @file
+ @brief Generic vector implementation.
+ @author Michael D. Lowis
+ @license BSD 2-clause License
+*/
+#ifndef VEC_H
+#define VEC_H
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+
+typedef struct {
+ size_t elem_count;
+ size_t elem_size;
+ size_t elem_capacity;
+ uint8_t* elem_buffer;
+} vec_t;
+
+typedef int (*vec_cmpfn_t)(const void*,const void*);
+
+#ifndef DEFAULT_VEC_CAPACITY
+#define DEFAULT_VEC_CAPACITY (size_t)8
+#endif
+
+static void vec_init(vec_t* vec, size_t elem_size) {
+ vec->elem_size = elem_size;
+ vec->elem_count = 0;
+ vec->elem_capacity = DEFAULT_VEC_CAPACITY;
+ vec->elem_buffer = malloc(elem_size * vec->elem_capacity);
+}
+
+static size_t vec_size(vec_t* vec) {
+ return vec->elem_count;
+}
+
+static bool vec_empty(vec_t* vec) {
+ return (vec->elem_count == 0);
+}
+
+static size_t vec_capacity(vec_t* vec) {
+ return vec->elem_capacity;
+}
+
+static size_t vec_next_capacity(size_t req_size) {
+ size_t next_power = req_size;
+ size_t num_bits = sizeof(size_t) * 8;
+ size_t bit_n;
+
+ /* Find the next highest power of 2 */
+ next_power--;
+ for (bit_n = 1; bit_n < num_bits; bit_n = bit_n << 1)
+ next_power = next_power | (next_power >> bit_n);
+ next_power++;
+
+ return next_power;
+}
+
+static void vec_reserve(vec_t* vec, size_t size) {
+ vec->elem_buffer = realloc(vec->elem_buffer, size * vec->elem_size);
+ vec->elem_capacity = size;
+}
+
+static void vec_resize(vec_t* vec, size_t count, void* fillval) {
+ if (count > vec->elem_count) {
+ vec_reserve(vec, vec_next_capacity(count+1));
+ for (; vec->elem_count < count; vec->elem_count++)
+ memcpy(&(vec->elem_buffer[vec->elem_count * vec->elem_size]), fillval, vec->elem_size);
+ } else if (count < vec->elem_count) {
+ vec->elem_count = count;
+ }
+}
+
+static void vec_shrink_to_fit(vec_t* vec) {
+ vec->elem_buffer = realloc(vec->elem_buffer, vec->elem_count * vec->elem_size);
+ vec->elem_capacity = vec->elem_count;
+}
+
+static void* vec_at(vec_t* vec, size_t index) {
+ return &(vec->elem_buffer[index * vec->elem_size]);
+}
+
+static void vec_set(vec_t* vec, size_t index, void* data) {
+ memcpy(&(vec->elem_buffer[index * vec->elem_size]), data, vec->elem_size);
+}
+
+static bool vec_insert(vec_t* vec, size_t index, size_t num_elements, ...) {
+ (void)vec;
+ (void)index;
+ (void)num_elements;
+ return false;
+}
+
+static bool vec_erase(vec_t* vec, size_t start_idx, size_t end_idx) {
+ (void)vec;
+ (void)start_idx;
+ (void)end_idx;
+ return false;
+}
+
+static void vec_push_back(vec_t* vec, void* data) {
+ vec_resize(vec, vec->elem_count+1, data);
+}
+
+static void vec_pop_back(vec_t* vec, void* outdata) {
+ vec->elem_count--;
+ memcpy(outdata, &(vec->elem_buffer[vec->elem_count * vec->elem_size]), vec->elem_size);
+}
+
+static void vec_clear(vec_t* vec) {
+ vec->elem_count = 0;
+}
+
+static void vec_sort(vec_t* vec, int (*cmpfn)(const void*,const void*)) {
+ qsort(vec->elem_buffer, vec->elem_count, vec->elem_size, cmpfn);
+}
+
+#pragma GCC diagnostic pop
+
+#endif /* VEC_H */
--- /dev/null
+#include <liba.h>
+
+struct MBusConnection {
+ int fd;
+};
+
+MBusConnection* MBus_Connect(char* dialstr)
+{
+ (void)dialstr;
+ return NULL;
+}
+
+void MBus_Disconnect(MBusConnection* conn)
+{
+ (void)conn;
+}
+
projects / proto / aos.git / commitdiff