1 /* See LICENSE for licence details. */
2 #define _XOPEN_SOURCE 600
15 #include <sys/ioctl.h>
16 #include <sys/select.h>
19 #include <sys/types.h>
23 #include <X11/Xatom.h>
25 #include <X11/Xutil.h>
26 #include <X11/cursorfont.h>
27 #include <X11/keysym.h>
28 #include <X11/extensions/Xdbe.h>
29 #include <X11/Xft/Xft.h>
30 #include <fontconfig/fontconfig.h>
34 #define Draw XftDraw *
35 #define Colour XftColor
36 #define Colourmap Colormap
40 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
42 #elif defined(__FreeBSD__) || defined(__DragonFly__)
47 "st " VERSION " (c) 2010-2012 st engineers\n" \
48 "usage: st [-v] [-c class] [-f font] [-g geometry] [-o file]" \
49 " [-t title] [-w windowid] [-e command ...]\n"
52 #define XEMBED_FOCUS_IN 4
53 #define XEMBED_FOCUS_OUT 5
57 #define ESC_BUF_SIZ (128*UTF_SIZ)
58 #define ESC_ARG_SIZ 16
59 #define STR_BUF_SIZ ESC_BUF_SIZ
60 #define STR_ARG_SIZ ESC_ARG_SIZ
61 #define DRAW_BUF_SIZ 20*1024
62 #define XK_ANY_MOD UINT_MAX
65 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
68 #define SERRNO strerror(errno)
69 #define MIN(a, b) ((a) < (b) ? (a) : (b))
70 #define MAX(a, b) ((a) < (b) ? (b) : (a))
71 #define LEN(a) (sizeof(a) / sizeof(a[0]))
72 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
73 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
74 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
75 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
76 #define IS_SET(flag) ((term.mode & (flag)) != 0)
77 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
79 #define VT102ID "\033[?6c"
81 enum glyph_attribute {
91 enum cursor_movement {
114 MODE_MOUSEMOTION = 64,
120 MODE_APPCURSOR = 2048
126 ESC_STR = 4, /* DSC, OSC, PM, APC */
128 ESC_STR_END = 16, /* a final string was encountered */
129 ESC_TEST = 32, /* Enter in test mode */
140 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
142 typedef unsigned char uchar;
143 typedef unsigned int uint;
144 typedef unsigned long ulong;
145 typedef unsigned short ushort;
148 char c[UTF_SIZ]; /* character code */
149 uchar mode; /* attribute flags */
150 ushort fg; /* foreground */
151 ushort bg; /* background */
152 uchar state; /* state flags */
158 Glyph attr; /* current char attributes */
164 /* CSI Escape sequence structs */
165 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
167 char buf[ESC_BUF_SIZ]; /* raw string */
168 int len; /* raw string length */
170 int arg[ESC_ARG_SIZ];
171 int narg; /* nb of args */
175 /* STR Escape sequence structs */
176 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
178 char type; /* ESC type ... */
179 char buf[STR_BUF_SIZ]; /* raw string */
180 int len; /* raw string length */
181 char *args[STR_ARG_SIZ];
182 int narg; /* nb of args */
185 /* Internal representation of the screen */
187 int row; /* nb row */
188 int col; /* nb col */
189 Line *line; /* screen */
190 Line *alt; /* alternate screen */
191 bool *dirty; /* dirtyness of lines */
192 TCursor c; /* cursor */
193 int top; /* top scroll limit */
194 int bot; /* bottom scroll limit */
195 int mode; /* terminal mode flags */
196 int esc; /* escape state flags */
197 bool numlock; /* lock numbers in keyboard */
201 /* Purely graphic info */
207 Atom xembed, wmdeletewin;
213 bool isfixed; /* is fixed geometry? */
214 int fx, fy, fw, fh; /* fixed geometry */
215 int tw, th; /* tty width and height */
216 int w; /* window width */
217 int h; /* window height */
218 int ch; /* char height */
219 int cw; /* char width */
220 char state; /* focus, redraw, visible */
227 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
228 signed char appkey; /* application keypad */
229 signed char appcursor; /* application cursor */
230 signed char crlf; /* crlf mode */
233 /* TODO: use better name for vars... */
244 struct timeval tclick1;
245 struct timeval tclick2;
258 void (*func)(const Arg *);
262 /* function definitions used in config.h */
263 static void xzoom(const Arg *);
264 static void selpaste(const Arg *);
265 static void numlock(const Arg *);
267 /* Config.h for applying patches and the configuration. */
283 /* Drawing Context */
285 Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
286 Font font, bfont, ifont, ibfont;
289 static void die(const char *, ...);
290 static void draw(void);
291 static void redraw(void);
292 static void drawregion(int, int, int, int);
293 static void execsh(void);
294 static void sigchld(int);
295 static void run(void);
297 static void csidump(void);
298 static void csihandle(void);
299 static void csiparse(void);
300 static void csireset(void);
301 static void strdump(void);
302 static void strhandle(void);
303 static void strparse(void);
304 static void strreset(void);
306 static void tclearregion(int, int, int, int);
307 static void tcursor(int);
308 static void tdeletechar(int);
309 static void tdeleteline(int);
310 static void tinsertblank(int);
311 static void tinsertblankline(int);
312 static void tmoveto(int, int);
313 static void tmoveato(int x, int y);
314 static void tnew(int, int);
315 static void tnewline(int);
316 static void tputtab(bool);
317 static void tputc(char *, int);
318 static void treset(void);
319 static int tresize(int, int);
320 static void tscrollup(int, int);
321 static void tscrolldown(int, int);
322 static void tsetattr(int*, int);
323 static void tsetchar(char *, Glyph *, int, int);
324 static void tsetscroll(int, int);
325 static void tswapscreen(void);
326 static void tsetdirt(int, int);
327 static void tsetmode(bool, bool, int *, int);
328 static void tfulldirt(void);
329 static void techo(char *, int);
331 static inline bool match(uint, uint);
332 static void ttynew(void);
333 static void ttyread(void);
334 static void ttyresize(void);
335 static void ttywrite(const char *, size_t);
337 static void xdraws(char *, Glyph, int, int, int, int);
338 static void xhints(void);
339 static void xclear(int, int, int, int);
340 static void xdrawcursor(void);
341 static void xinit(void);
342 static void xloadcols(void);
343 static int xloadfont(Font *, FcPattern *);
344 static void xloadfonts(char *, int);
345 static void xresettitle(void);
346 static void xseturgency(int);
347 static void xsetsel(char*);
348 static void xtermclear(int, int, int, int);
349 static void xunloadfonts(void);
350 static void xresize(int, int);
352 static void expose(XEvent *);
353 static void visibility(XEvent *);
354 static void unmap(XEvent *);
355 static char *kmap(KeySym, uint);
356 static void kpress(XEvent *);
357 static void cmessage(XEvent *);
358 static void cresize(int, int);
359 static void resize(XEvent *);
360 static void focus(XEvent *);
361 static void brelease(XEvent *);
362 static void bpress(XEvent *);
363 static void bmotion(XEvent *);
364 static void selnotify(XEvent *);
365 static void selclear(XEvent *);
366 static void selrequest(XEvent *);
368 static void selinit(void);
369 static inline bool selected(int, int);
370 static void selcopy(void);
371 static void selscroll(int, int);
373 static int utf8decode(char *, long *);
374 static int utf8encode(long *, char *);
375 static int utf8size(char *);
376 static int isfullutf8(char *, int);
378 static ssize_t xwrite(int, char *, size_t);
379 static void *xmalloc(size_t);
380 static void *xrealloc(void *, size_t);
381 static void *xcalloc(size_t, size_t);
383 static void (*handler[LASTEvent])(XEvent *) = {
385 [ClientMessage] = cmessage,
386 [ConfigureNotify] = resize,
387 [VisibilityNotify] = visibility,
388 [UnmapNotify] = unmap,
392 [MotionNotify] = bmotion,
393 [ButtonPress] = bpress,
394 [ButtonRelease] = brelease,
395 [SelectionClear] = selclear,
396 [SelectionNotify] = selnotify,
397 [SelectionRequest] = selrequest,
404 static CSIEscape csiescseq;
405 static STREscape strescseq;
408 static Selection sel;
409 static int iofd = -1;
410 static char **opt_cmd = NULL;
411 static char *opt_io = NULL;
412 static char *opt_title = NULL;
413 static char *opt_embed = NULL;
414 static char *opt_class = NULL;
415 static char *opt_font = NULL;
417 static char *usedfont = NULL;
418 static int usedfontsize = 0;
420 /* Font Ring Cache */
435 * Fontcache is a ring buffer, with frccur as current position and frclen as
436 * the current length of used elements.
439 static Fontcache frc[1024];
440 static int frccur = -1, frclen = 0;
443 xwrite(int fd, char *s, size_t len) {
447 ssize_t r = write(fd, s, len);
457 xmalloc(size_t len) {
458 void *p = malloc(len);
461 die("Out of memory\n");
467 xrealloc(void *p, size_t len) {
468 if((p = realloc(p, len)) == NULL)
469 die("Out of memory\n");
475 xcalloc(size_t nmemb, size_t size) {
476 void *p = calloc(nmemb, size);
479 die("Out of memory\n");
485 utf8decode(char *s, long *u) {
491 if(~c & B7) { /* 0xxxxxxx */
494 } else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
495 *u = c&(B4|B3|B2|B1|B0);
497 } else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
498 *u = c&(B3|B2|B1|B0);
500 } else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
507 for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
509 if((c & (B7|B6)) != B7) /* 10xxxxxx */
512 *u |= c & (B5|B4|B3|B2|B1|B0);
515 if((n == 1 && *u < 0x80) ||
516 (n == 2 && *u < 0x800) ||
517 (n == 3 && *u < 0x10000) ||
518 (*u >= 0xD800 && *u <= 0xDFFF)) {
530 utf8encode(long *u, char *s) {
538 *sp = uc; /* 0xxxxxxx */
540 } else if(*u < 0x800) {
541 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
543 } else if(uc < 0x10000) {
544 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
546 } else if(uc <= 0x10FFFF) {
547 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
553 for(i=n,++sp; i>0; --i,++sp)
554 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
566 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
567 UTF-8 otherwise return 0 */
569 isfullutf8(char *s, int b) {
577 } else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) {
579 } else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
581 ((b == 2) && (*c2&(B7|B6)) == B7))) {
583 } else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
585 ((b == 2) && (*c2&(B7|B6)) == B7) ||
586 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) {
599 } else if((c&(B7|B6|B5)) == (B7|B6)) {
601 } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) {
610 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
611 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
615 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
616 if(sel.xtarget == None)
617 sel.xtarget = XA_STRING;
625 return LIMIT(x, 0, term.col-1);
633 return LIMIT(y, 0, term.row-1);
637 selected(int x, int y) {
640 if(sel.ey == y && sel.by == y) {
641 bx = MIN(sel.bx, sel.ex);
642 ex = MAX(sel.bx, sel.ex);
643 return BETWEEN(x, bx, ex);
646 return ((sel.b.y < y && y < sel.e.y)
647 || (y == sel.e.y && x <= sel.e.x))
648 || (y == sel.b.y && x >= sel.b.x
649 && (x <= sel.e.x || sel.b.y != sel.e.y));
653 getbuttoninfo(XEvent *e) {
654 sel.alt = IS_SET(MODE_ALTSCREEN);
656 sel.ex = x2col(e->xbutton.x);
657 sel.ey = y2row(e->xbutton.y);
659 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
660 sel.b.y = MIN(sel.by, sel.ey);
661 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
662 sel.e.y = MAX(sel.by, sel.ey);
666 mousereport(XEvent *e) {
667 int x = x2col(e->xbutton.x);
668 int y = y2row(e->xbutton.y);
669 int button = e->xbutton.button;
670 int state = e->xbutton.state;
671 char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
672 static int ob, ox, oy;
675 if(e->xbutton.type == MotionNotify) {
676 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
680 } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
686 if(e->xbutton.type == ButtonPress) {
692 buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
693 + (state & Mod4Mask ? 8 : 0)
694 + (state & ControlMask ? 16 : 0);
696 ttywrite(buf, sizeof(buf));
701 if(IS_SET(MODE_MOUSE)) {
703 } else if(e->xbutton.button == Button1) {
706 tsetdirt(sel.b.y, sel.e.y);
710 sel.ex = sel.bx = x2col(e->xbutton.x);
711 sel.ey = sel.by = y2row(e->xbutton.y);
712 } else if(e->xbutton.button == Button4) {
714 } else if(e->xbutton.button == Button5) {
722 int x, y, bufsize, is_selected = 0, size;
728 bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
729 ptr = str = xmalloc(bufsize);
731 /* append every set & selected glyph to the selection */
732 for(y = 0; y < term.row; y++) {
733 gp = &term.line[y][0];
734 last = gp + term.col;
736 while(--last >= gp && !(last->state & GLYPH_SET))
739 for(x = 0; gp <= last; x++, ++gp) {
740 if(!(is_selected = selected(x, y)))
743 p = (gp->state & GLYPH_SET) ? gp->c : " ";
745 memcpy(ptr, p, size);
748 /* \n at the end of every selected line except for the last one */
749 if(is_selected && y < sel.e.y)
758 selnotify(XEvent *e) {
759 ulong nitems, ofs, rem;
766 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
767 False, AnyPropertyType, &type, &format,
768 &nitems, &rem, &data)) {
769 fprintf(stderr, "Clipboard allocation failed\n");
772 ttywrite((const char *) data, nitems * format / 8);
774 /* number of 32-bit chunks returned */
775 ofs += nitems * format / 32;
780 selpaste(const Arg *dummy) {
781 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
782 xw.win, CurrentTime);
785 void selclear(XEvent *e) {
789 tsetdirt(sel.b.y, sel.e.y);
793 selrequest(XEvent *e) {
794 XSelectionRequestEvent *xsre;
796 Atom xa_targets, string;
798 xsre = (XSelectionRequestEvent *) e;
799 xev.type = SelectionNotify;
800 xev.requestor = xsre->requestor;
801 xev.selection = xsre->selection;
802 xev.target = xsre->target;
803 xev.time = xsre->time;
807 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
808 if(xsre->target == xa_targets) {
809 /* respond with the supported type */
810 string = sel.xtarget;
811 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
812 XA_ATOM, 32, PropModeReplace,
813 (uchar *) &string, 1);
814 xev.property = xsre->property;
815 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
816 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
817 xsre->target, 8, PropModeReplace,
818 (uchar *) sel.clip, strlen(sel.clip));
819 xev.property = xsre->property;
822 /* all done, send a notification to the listener */
823 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
824 fprintf(stderr, "Error sending SelectionNotify event\n");
829 /* register the selection for both the clipboard and the primary */
835 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
837 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
838 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
842 brelease(XEvent *e) {
845 if(IS_SET(MODE_MOUSE)) {
850 if(e->xbutton.button == Button2) {
852 } else if(e->xbutton.button == Button1) {
855 term.dirty[sel.ey] = 1;
856 if(sel.bx == sel.ex && sel.by == sel.ey) {
858 gettimeofday(&now, NULL);
860 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
861 /* triple click on the line */
862 sel.b.x = sel.bx = 0;
863 sel.e.x = sel.ex = term.col;
864 sel.b.y = sel.e.y = sel.ey;
866 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
867 /* double click to select word */
869 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
870 term.line[sel.ey][sel.bx-1].c[0] != ' ') {
874 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
875 term.line[sel.ey][sel.ex+1].c[0] != ' ') {
879 sel.b.y = sel.e.y = sel.ey;
887 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
888 gettimeofday(&sel.tclick1, NULL);
893 int starty, endy, oldey, oldex;
895 if(IS_SET(MODE_MOUSE)) {
907 if(oldey != sel.ey || oldex != sel.ex) {
908 starty = MIN(oldey, sel.ey);
909 endy = MAX(oldey, sel.ey);
910 tsetdirt(starty, endy);
915 die(const char *errstr, ...) {
918 va_start(ap, errstr);
919 vfprintf(stderr, errstr, ap);
927 char *envshell = getenv("SHELL");
928 const struct passwd *pass = getpwuid(getuid());
929 char buf[sizeof(long) * 8 + 1];
936 setenv("LOGNAME", pass->pw_name, 1);
937 setenv("USER", pass->pw_name, 1);
938 setenv("SHELL", pass->pw_shell, 0);
939 setenv("HOME", pass->pw_dir, 0);
942 snprintf(buf, sizeof(buf), "%lu", xw.win);
943 setenv("WINDOWID", buf, 1);
945 signal(SIGCHLD, SIG_DFL);
946 signal(SIGHUP, SIG_DFL);
947 signal(SIGINT, SIG_DFL);
948 signal(SIGQUIT, SIG_DFL);
949 signal(SIGTERM, SIG_DFL);
950 signal(SIGALRM, SIG_DFL);
952 DEFAULT(envshell, shell);
953 setenv("TERM", termname, 1);
954 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
955 execvp(args[0], args);
963 if(waitpid(pid, &stat, 0) < 0)
964 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
966 if(WIFEXITED(stat)) {
967 exit(WEXITSTATUS(stat));
976 struct winsize w = {term.row, term.col, 0, 0};
978 /* seems to work fine on linux, openbsd and freebsd */
979 if(openpty(&m, &s, NULL, NULL, &w) < 0)
980 die("openpty failed: %s\n", SERRNO);
982 switch(pid = fork()) {
984 die("fork failed\n");
987 setsid(); /* create a new process group */
988 dup2(s, STDIN_FILENO);
989 dup2(s, STDOUT_FILENO);
990 dup2(s, STDERR_FILENO);
991 if(ioctl(s, TIOCSCTTY, NULL) < 0)
992 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
1000 signal(SIGCHLD, sigchld);
1002 iofd = (!strcmp(opt_io, "-")) ?
1004 open(opt_io, O_WRONLY | O_CREAT, 0666);
1006 fprintf(stderr, "Error opening %s:%s\n",
1007 opt_io, strerror(errno));
1017 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
1019 fprintf(stderr, "\n");
1024 static char buf[BUFSIZ];
1025 static int buflen = 0;
1028 int charsize; /* size of utf8 char in bytes */
1032 /* append read bytes to unprocessed bytes */
1033 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1034 die("Couldn't read from shell: %s\n", SERRNO);
1036 /* process every complete utf8 char */
1039 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
1040 charsize = utf8decode(ptr, &utf8c);
1041 utf8encode(&utf8c, s);
1047 /* keep any uncomplete utf8 char for the next call */
1048 memmove(buf, ptr, buflen);
1052 ttywrite(const char *s, size_t n) {
1053 if(write(cmdfd, s, n) == -1)
1054 die("write error on tty: %s\n", SERRNO);
1061 w.ws_row = term.row;
1062 w.ws_col = term.col;
1063 w.ws_xpixel = xw.tw;
1064 w.ws_ypixel = xw.th;
1065 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1066 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
1070 tsetdirt(int top, int bot) {
1073 LIMIT(top, 0, term.row-1);
1074 LIMIT(bot, 0, term.row-1);
1076 for(i = top; i <= bot; i++)
1082 tsetdirt(0, term.row-1);
1089 if(mode == CURSOR_SAVE) {
1091 } else if(mode == CURSOR_LOAD) {
1101 term.c = (TCursor){{
1105 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1107 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1108 for(i = tabspaces; i < term.col; i += tabspaces)
1111 term.bot = term.row - 1;
1112 term.mode = MODE_WRAP;
1114 tclearregion(0, 0, term.col-1, term.row-1);
1116 tcursor(CURSOR_SAVE);
1120 tnew(int col, int row) {
1121 /* set screen size */
1124 term.line = xmalloc(term.row * sizeof(Line));
1125 term.alt = xmalloc(term.row * sizeof(Line));
1126 term.dirty = xmalloc(term.row * sizeof(*term.dirty));
1127 term.tabs = xmalloc(term.col * sizeof(*term.tabs));
1129 for(row = 0; row < term.row; row++) {
1130 term.line[row] = xmalloc(term.col * sizeof(Glyph));
1131 term.alt [row] = xmalloc(term.col * sizeof(Glyph));
1132 term.dirty[row] = 0;
1136 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1143 Line *tmp = term.line;
1145 term.line = term.alt;
1147 term.mode ^= MODE_ALTSCREEN;
1152 tscrolldown(int orig, int n) {
1156 LIMIT(n, 0, term.bot-orig+1);
1158 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1160 for(i = term.bot; i >= orig+n; i--) {
1161 temp = term.line[i];
1162 term.line[i] = term.line[i-n];
1163 term.line[i-n] = temp;
1166 term.dirty[i-n] = 1;
1173 tscrollup(int orig, int n) {
1176 LIMIT(n, 0, term.bot-orig+1);
1178 tclearregion(0, orig, term.col-1, orig+n-1);
1180 for(i = orig; i <= term.bot-n; i++) {
1181 temp = term.line[i];
1182 term.line[i] = term.line[i+n];
1183 term.line[i+n] = temp;
1186 term.dirty[i+n] = 1;
1189 selscroll(orig, -n);
1193 selscroll(int orig, int n) {
1197 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
1198 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
1202 if(sel.by < term.top) {
1206 if(sel.ey > term.bot) {
1210 sel.b.y = sel.by, sel.b.x = sel.bx;
1211 sel.e.y = sel.ey, sel.e.x = sel.ex;
1216 tnewline(int first_col) {
1220 tscrollup(term.top, 1);
1224 tmoveto(first_col ? 0 : term.c.x, y);
1229 /* int noarg = 1; */
1230 char *p = csiescseq.buf;
1234 csiescseq.priv = 1, p++;
1236 while(p < csiescseq.buf+csiescseq.len) {
1237 while(isdigit(*p)) {
1238 csiescseq.arg[csiescseq.narg] *= 10;
1239 csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
1241 if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ) {
1242 csiescseq.narg++, p++;
1244 csiescseq.mode = *p;
1252 /* for absolute user moves, when decom is set */
1254 tmoveato(int x, int y) {
1255 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1259 tmoveto(int x, int y) {
1262 if(term.c.state & CURSOR_ORIGIN) {
1267 maxy = term.row - 1;
1269 LIMIT(x, 0, term.col-1);
1270 LIMIT(y, miny, maxy);
1271 term.c.state &= ~CURSOR_WRAPNEXT;
1277 tsetchar(char *c, Glyph *attr, int x, int y) {
1278 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1279 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1280 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1281 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1282 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1283 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1284 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1285 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1286 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1290 * The table is proudly stolen from rxvt.
1292 if(attr->mode & ATTR_GFX) {
1293 if(c[0] >= 0x41 && c[0] <= 0x7e
1294 && vt100_0[c[0] - 0x41]) {
1295 c = vt100_0[c[0] - 0x41];
1300 term.line[y][x] = *attr;
1301 memcpy(term.line[y][x].c, c, UTF_SIZ);
1302 term.line[y][x].state |= GLYPH_SET;
1306 tclearregion(int x1, int y1, int x2, int y2) {
1310 temp = x1, x1 = x2, x2 = temp;
1312 temp = y1, y1 = y2, y2 = temp;
1314 LIMIT(x1, 0, term.col-1);
1315 LIMIT(x2, 0, term.col-1);
1316 LIMIT(y1, 0, term.row-1);
1317 LIMIT(y2, 0, term.row-1);
1319 for(y = y1; y <= y2; y++) {
1321 for(x = x1; x <= x2; x++)
1322 term.line[y][x].state = 0;
1327 tdeletechar(int n) {
1328 int src = term.c.x + n;
1330 int size = term.col - src;
1332 term.dirty[term.c.y] = 1;
1334 if(src >= term.col) {
1335 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1339 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1340 size * sizeof(Glyph));
1341 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1345 tinsertblank(int n) {
1348 int size = term.col - dst;
1350 term.dirty[term.c.y] = 1;
1352 if(dst >= term.col) {
1353 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1357 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1358 size * sizeof(Glyph));
1359 tclearregion(src, term.c.y, dst - 1, term.c.y);
1363 tinsertblankline(int n) {
1364 if(term.c.y < term.top || term.c.y > term.bot)
1367 tscrolldown(term.c.y, n);
1371 tdeleteline(int n) {
1372 if(term.c.y < term.top || term.c.y > term.bot)
1375 tscrollup(term.c.y, n);
1379 tsetattr(int *attr, int l) {
1382 for(i = 0; i < l; i++) {
1385 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
1386 | ATTR_ITALIC | ATTR_BLINK);
1387 term.c.attr.fg = defaultfg;
1388 term.c.attr.bg = defaultbg;
1391 term.c.attr.mode |= ATTR_BOLD;
1394 term.c.attr.mode |= ATTR_ITALIC;
1397 term.c.attr.mode |= ATTR_UNDERLINE;
1400 term.c.attr.mode |= ATTR_BLINK;
1403 term.c.attr.mode |= ATTR_REVERSE;
1407 term.c.attr.mode &= ~ATTR_BOLD;
1410 term.c.attr.mode &= ~ATTR_ITALIC;
1413 term.c.attr.mode &= ~ATTR_UNDERLINE;
1416 term.c.attr.mode &= ~ATTR_BLINK;
1419 term.c.attr.mode &= ~ATTR_REVERSE;
1422 if(i + 2 < l && attr[i + 1] == 5) {
1424 if(BETWEEN(attr[i], 0, 255)) {
1425 term.c.attr.fg = attr[i];
1428 "erresc: bad fgcolor %d\n",
1433 "erresc(38): gfx attr %d unknown\n",
1438 term.c.attr.fg = defaultfg;
1441 if(i + 2 < l && attr[i + 1] == 5) {
1443 if(BETWEEN(attr[i], 0, 255)) {
1444 term.c.attr.bg = attr[i];
1447 "erresc: bad bgcolor %d\n",
1452 "erresc(48): gfx attr %d unknown\n",
1457 term.c.attr.bg = defaultbg;
1460 if(BETWEEN(attr[i], 30, 37)) {
1461 term.c.attr.fg = attr[i] - 30;
1462 } else if(BETWEEN(attr[i], 40, 47)) {
1463 term.c.attr.bg = attr[i] - 40;
1464 } else if(BETWEEN(attr[i], 90, 97)) {
1465 term.c.attr.fg = attr[i] - 90 + 8;
1466 } else if(BETWEEN(attr[i], 100, 107)) {
1467 term.c.attr.bg = attr[i] - 100 + 8;
1470 "erresc(default): gfx attr %d unknown\n",
1471 attr[i]), csidump();
1479 tsetscroll(int t, int b) {
1482 LIMIT(t, 0, term.row-1);
1483 LIMIT(b, 0, term.row-1);
1493 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
1496 tsetmode(bool priv, bool set, int *args, int narg) {
1500 for(lim = args + narg; args < lim; ++args) {
1504 case 1: /* DECCKM -- Cursor key */
1505 MODBIT(term.mode, set, MODE_APPCURSOR);
1507 case 5: /* DECSCNM -- Reverse video */
1509 MODBIT(term.mode, set, MODE_REVERSE);
1510 if(mode != term.mode)
1513 case 6: /* DECOM -- Origin */
1514 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1517 case 7: /* DECAWM -- Auto wrap */
1518 MODBIT(term.mode, set, MODE_WRAP);
1520 case 0: /* Error (IGNORED) */
1521 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1522 case 3: /* DECCOLM -- Column (IGNORED) */
1523 case 4: /* DECSCLM -- Scroll (IGNORED) */
1524 case 8: /* DECARM -- Auto repeat (IGNORED) */
1525 case 18: /* DECPFF -- Printer feed (IGNORED) */
1526 case 19: /* DECPEX -- Printer extent (IGNORED) */
1527 case 42: /* DECNRCM -- National characters (IGNORED) */
1528 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1530 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1531 MODBIT(term.mode, !set, MODE_HIDE);
1533 case 1000: /* 1000,1002: enable xterm mouse report */
1534 MODBIT(term.mode, set, MODE_MOUSEBTN);
1537 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1539 case 1049: /* = 1047 and 1048 */
1542 alt = IS_SET(MODE_ALTSCREEN);
1544 tclearregion(0, 0, term.col-1, term.row-1);
1545 if(set ^ alt) /* set is always 1 or 0 */
1552 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1556 "erresc: unknown private set/reset mode %d\n",
1562 case 0: /* Error (IGNORED) */
1564 case 2: /* KAM -- keyboard action */
1565 MODBIT(term.mode, set, MODE_KBDLOCK);
1567 case 4: /* IRM -- Insertion-replacement */
1568 MODBIT(term.mode, set, MODE_INSERT);
1570 case 12: /* SRM -- Send/Receive */
1571 MODBIT(term.mode, !set, MODE_ECHO);
1573 case 20: /* LNM -- Linefeed/new line */
1574 MODBIT(term.mode, set, MODE_CRLF);
1578 "erresc: unknown set/reset mode %d\n",
1590 switch(csiescseq.mode) {
1593 fprintf(stderr, "erresc: unknown csi ");
1597 case '@': /* ICH -- Insert <n> blank char */
1598 DEFAULT(csiescseq.arg[0], 1);
1599 tinsertblank(csiescseq.arg[0]);
1601 case 'A': /* CUU -- Cursor <n> Up */
1602 DEFAULT(csiescseq.arg[0], 1);
1603 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1605 case 'B': /* CUD -- Cursor <n> Down */
1606 case 'e': /* VPR --Cursor <n> Down */
1607 DEFAULT(csiescseq.arg[0], 1);
1608 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1610 case 'c': /* DA -- Device Attributes */
1611 if(csiescseq.arg[0] == 0)
1612 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1614 case 'C': /* CUF -- Cursor <n> Forward */
1615 case 'a': /* HPR -- Cursor <n> Forward */
1616 DEFAULT(csiescseq.arg[0], 1);
1617 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1619 case 'D': /* CUB -- Cursor <n> Backward */
1620 DEFAULT(csiescseq.arg[0], 1);
1621 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1623 case 'E': /* CNL -- Cursor <n> Down and first col */
1624 DEFAULT(csiescseq.arg[0], 1);
1625 tmoveto(0, term.c.y+csiescseq.arg[0]);
1627 case 'F': /* CPL -- Cursor <n> Up and first col */
1628 DEFAULT(csiescseq.arg[0], 1);
1629 tmoveto(0, term.c.y-csiescseq.arg[0]);
1631 case 'g': /* TBC -- Tabulation clear */
1632 switch (csiescseq.arg[0]) {
1633 case 0: /* clear current tab stop */
1634 term.tabs[term.c.x] = 0;
1636 case 3: /* clear all the tabs */
1637 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1643 case 'G': /* CHA -- Move to <col> */
1645 DEFAULT(csiescseq.arg[0], 1);
1646 tmoveto(csiescseq.arg[0]-1, term.c.y);
1648 case 'H': /* CUP -- Move to <row> <col> */
1650 DEFAULT(csiescseq.arg[0], 1);
1651 DEFAULT(csiescseq.arg[1], 1);
1652 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1654 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1655 DEFAULT(csiescseq.arg[0], 1);
1656 while(csiescseq.arg[0]--)
1659 case 'J': /* ED -- Clear screen */
1661 switch(csiescseq.arg[0]) {
1663 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1664 if(term.c.y < term.row-1)
1665 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1669 tclearregion(0, 0, term.col-1, term.c.y-1);
1670 tclearregion(0, term.c.y, term.c.x, term.c.y);
1673 tclearregion(0, 0, term.col-1, term.row-1);
1679 case 'K': /* EL -- Clear line */
1680 switch(csiescseq.arg[0]) {
1682 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1685 tclearregion(0, term.c.y, term.c.x, term.c.y);
1688 tclearregion(0, term.c.y, term.col-1, term.c.y);
1692 case 'S': /* SU -- Scroll <n> line up */
1693 DEFAULT(csiescseq.arg[0], 1);
1694 tscrollup(term.top, csiescseq.arg[0]);
1696 case 'T': /* SD -- Scroll <n> line down */
1697 DEFAULT(csiescseq.arg[0], 1);
1698 tscrolldown(term.top, csiescseq.arg[0]);
1700 case 'L': /* IL -- Insert <n> blank lines */
1701 DEFAULT(csiescseq.arg[0], 1);
1702 tinsertblankline(csiescseq.arg[0]);
1704 case 'l': /* RM -- Reset Mode */
1705 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
1707 case 'M': /* DL -- Delete <n> lines */
1708 DEFAULT(csiescseq.arg[0], 1);
1709 tdeleteline(csiescseq.arg[0]);
1711 case 'X': /* ECH -- Erase <n> char */
1712 DEFAULT(csiescseq.arg[0], 1);
1713 tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
1715 case 'P': /* DCH -- Delete <n> char */
1716 DEFAULT(csiescseq.arg[0], 1);
1717 tdeletechar(csiescseq.arg[0]);
1719 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
1720 DEFAULT(csiescseq.arg[0], 1);
1721 while(csiescseq.arg[0]--)
1724 case 'd': /* VPA -- Move to <row> */
1725 DEFAULT(csiescseq.arg[0], 1);
1726 tmoveato(term.c.x, csiescseq.arg[0]-1);
1728 case 'h': /* SM -- Set terminal mode */
1729 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
1731 case 'm': /* SGR -- Terminal attribute (color) */
1732 tsetattr(csiescseq.arg, csiescseq.narg);
1734 case 'r': /* DECSTBM -- Set Scrolling Region */
1735 if(csiescseq.priv) {
1738 DEFAULT(csiescseq.arg[0], 1);
1739 DEFAULT(csiescseq.arg[1], term.row);
1740 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
1744 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1745 tcursor(CURSOR_SAVE);
1747 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1748 tcursor(CURSOR_LOAD);
1759 for(i = 0; i < csiescseq.len; i++) {
1760 c = csiescseq.buf[i] & 0xff;
1763 } else if(c == '\n') {
1765 } else if(c == '\r') {
1767 } else if(c == 0x1b) {
1770 printf("(%02x)", c);
1778 memset(&csiescseq, 0, sizeof(csiescseq));
1786 * TODO: make this being useful in case of color palette change.
1792 switch(strescseq.type) {
1793 case ']': /* OSC -- Operating System Command */
1799 * TODO: Handle special chars in string, like umlauts.
1802 XStoreName(xw.dpy, xw.win, strescseq.buf+2);
1806 XStoreName(xw.dpy, xw.win, strescseq.buf+1);
1808 case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
1811 fprintf(stderr, "erresc: unknown str ");
1816 case 'k': /* old title set compatibility */
1817 XStoreName(xw.dpy, xw.win, strescseq.buf);
1819 case 'P': /* DSC -- Device Control String */
1820 case '_': /* APC -- Application Program Command */
1821 case '^': /* PM -- Privacy Message */
1823 fprintf(stderr, "erresc: unknown str ");
1833 * TODO: Implement parsing like for CSI when required.
1834 * Format: ESC type cmd ';' arg0 [';' argn] ESC \
1844 printf("ESC%c", strescseq.type);
1845 for(i = 0; i < strescseq.len; i++) {
1846 c = strescseq.buf[i] & 0xff;
1849 } else if(c == '\n') {
1851 } else if(c == '\r') {
1853 } else if(c == 0x1b) {
1856 printf("(%02x)", c);
1864 memset(&strescseq, 0, sizeof(strescseq));
1868 tputtab(bool forward) {
1874 for(++x; x < term.col && !term.tabs[x]; ++x)
1879 for(--x; x > 0 && !term.tabs[x]; --x)
1882 tmoveto(x, term.c.y);
1886 techo(char *buf, int len) {
1887 for(; len > 0; buf++, len--) {
1890 if(c == '\033') { /* escape */
1893 } else if (c < '\x20') { /* control code */
1894 if(c != '\n' && c != '\r' && c != '\t') {
1908 tputc(char *c, int len) {
1910 bool control = ascii < '\x20' || ascii == 0177;
1913 if (xwrite(iofd, c, len) < 0) {
1914 fprintf(stderr, "Error writing in %s:%s\n",
1915 opt_io, strerror(errno));
1922 * STR sequences must be checked before anything else
1923 * because it can use some control codes as part of the sequence.
1925 if(term.esc & ESC_STR) {
1928 term.esc = ESC_START | ESC_STR_END;
1930 case '\a': /* backwards compatibility to xterm */
1935 if(strescseq.len + len < sizeof(strescseq.buf)) {
1936 memmove(&strescseq.buf[strescseq.len], c, len);
1937 strescseq.len += len;
1940 * Here is a bug in terminals. If the user never sends
1941 * some code to stop the str or esc command, then st
1942 * will stop responding. But this is better than
1943 * silently failing with unknown characters. At least
1944 * then users will report back.
1946 * In the case users ever get fixed, here is the code:
1958 * Actions of control codes must be performed as soon they arrive
1959 * because they can be embedded inside a control sequence, and
1960 * they must not cause conflicts with sequences.
1968 tmoveto(term.c.x-1, term.c.y);
1971 tmoveto(0, term.c.y);
1976 /* go to first col if the mode is set */
1977 tnewline(IS_SET(MODE_CRLF));
1979 case '\a': /* BEL */
1980 if(!(xw.state & WIN_FOCUSED))
1983 case '\033': /* ESC */
1985 term.esc = ESC_START;
1987 case '\016': /* SO */
1988 term.c.attr.mode |= ATTR_GFX;
1990 case '\017': /* SI */
1991 term.c.attr.mode &= ~ATTR_GFX;
1993 case '\032': /* SUB */
1994 case '\030': /* CAN */
1997 case '\005': /* ENQ (IGNORED) */
1998 case '\000': /* NUL (IGNORED) */
1999 case '\021': /* XON (IGNORED) */
2000 case '\023': /* XOFF (IGNORED) */
2001 case 0177: /* DEL (IGNORED) */
2004 } else if(term.esc & ESC_START) {
2005 if(term.esc & ESC_CSI) {
2006 csiescseq.buf[csiescseq.len++] = ascii;
2007 if(BETWEEN(ascii, 0x40, 0x7E)
2008 || csiescseq.len >= ESC_BUF_SIZ) {
2010 csiparse(), csihandle();
2012 } else if(term.esc & ESC_STR_END) {
2016 } else if(term.esc & ESC_ALTCHARSET) {
2018 case '0': /* Line drawing set */
2019 term.c.attr.mode |= ATTR_GFX;
2021 case 'B': /* USASCII */
2022 term.c.attr.mode &= ~ATTR_GFX;
2024 case 'A': /* UK (IGNORED) */
2025 case '<': /* multinational charset (IGNORED) */
2026 case '5': /* Finnish (IGNORED) */
2027 case 'C': /* Finnish (IGNORED) */
2028 case 'K': /* German (IGNORED) */
2031 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2034 } else if(term.esc & ESC_TEST) {
2035 if(ascii == '8') { /* DEC screen alignment test. */
2036 char E[UTF_SIZ] = "E";
2039 for(x = 0; x < term.col; ++x) {
2040 for(y = 0; y < term.row; ++y)
2041 tsetchar(E, &term.c.attr, x, y);
2048 term.esc |= ESC_CSI;
2051 term.esc |= ESC_TEST;
2053 case 'P': /* DCS -- Device Control String */
2054 case '_': /* APC -- Application Program Command */
2055 case '^': /* PM -- Privacy Message */
2056 case ']': /* OSC -- Operating System Command */
2057 case 'k': /* old title set compatibility */
2059 strescseq.type = ascii;
2060 term.esc |= ESC_STR;
2062 case '(': /* set primary charset G0 */
2063 term.esc |= ESC_ALTCHARSET;
2065 case ')': /* set secondary charset G1 (IGNORED) */
2066 case '*': /* set tertiary charset G2 (IGNORED) */
2067 case '+': /* set quaternary charset G3 (IGNORED) */
2070 case 'D': /* IND -- Linefeed */
2071 if(term.c.y == term.bot) {
2072 tscrollup(term.top, 1);
2074 tmoveto(term.c.x, term.c.y+1);
2078 case 'E': /* NEL -- Next line */
2079 tnewline(1); /* always go to first col */
2082 case 'H': /* HTS -- Horizontal tab stop */
2083 term.tabs[term.c.x] = 1;
2086 case 'M': /* RI -- Reverse index */
2087 if(term.c.y == term.top) {
2088 tscrolldown(term.top, 1);
2090 tmoveto(term.c.x, term.c.y-1);
2094 case 'Z': /* DECID -- Identify Terminal */
2095 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2098 case 'c': /* RIS -- Reset to inital state */
2103 case '=': /* DECPAM -- Application keypad */
2104 term.mode |= MODE_APPKEYPAD;
2107 case '>': /* DECPNM -- Normal keypad */
2108 term.mode &= ~MODE_APPKEYPAD;
2111 case '7': /* DECSC -- Save Cursor */
2112 tcursor(CURSOR_SAVE);
2115 case '8': /* DECRC -- Restore Cursor */
2116 tcursor(CURSOR_LOAD);
2119 case '\\': /* ST -- Stop */
2123 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2124 (uchar) ascii, isprint(ascii)? ascii:'.');
2129 * All characters which form part of a sequence are not
2135 * Display control codes only if we are in graphic mode
2137 if(control && !(term.c.attr.mode & ATTR_GFX))
2139 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
2141 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
2142 tnewline(1); /* always go to first col */
2144 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
2145 memmove(&term.line[term.c.y][term.c.x+1],
2146 &term.line[term.c.y][term.c.x],
2147 (term.col - term.c.x - 1) * sizeof(Glyph));
2150 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2151 if(term.c.x+1 < term.col) {
2152 tmoveto(term.c.x+1, term.c.y);
2154 term.c.state |= CURSOR_WRAPNEXT;
2159 tresize(int col, int row) {
2161 int minrow = MIN(row, term.row);
2162 int mincol = MIN(col, term.col);
2163 int slide = term.c.y - row + 1;
2166 if(col < 1 || row < 1)
2169 /* free unneeded rows */
2172 /* slide screen to keep cursor where we expect it -
2173 * tscrollup would work here, but we can optimize to
2174 * memmove because we're freeing the earlier lines */
2175 for(/* i = 0 */; i < slide; i++) {
2179 memmove(term.line, term.line + slide, row * sizeof(Line));
2180 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2182 for(i += row; i < term.row; i++) {
2187 /* resize to new height */
2188 term.line = xrealloc(term.line, row * sizeof(Line));
2189 term.alt = xrealloc(term.alt, row * sizeof(Line));
2190 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2191 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2193 /* resize each row to new width, zero-pad if needed */
2194 for(i = 0; i < minrow; i++) {
2196 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2197 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2198 for(x = mincol; x < col; x++) {
2199 term.line[i][x].state = 0;
2200 term.alt[i][x].state = 0;
2204 /* allocate any new rows */
2205 for(/* i == minrow */; i < row; i++) {
2207 term.line[i] = xcalloc(col, sizeof(Glyph));
2208 term.alt [i] = xcalloc(col, sizeof(Glyph));
2210 if(col > term.col) {
2211 bp = term.tabs + term.col;
2213 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2214 while(--bp > term.tabs && !*bp)
2216 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2219 /* update terminal size */
2222 /* reset scrolling region */
2223 tsetscroll(0, row-1);
2224 /* make use of the LIMIT in tmoveto */
2225 tmoveto(term.c.x, term.c.y);
2231 xresize(int col, int row) {
2232 xw.tw = MAX(1, col * xw.cw);
2233 xw.th = MAX(1, row * xw.ch);
2235 XftDrawChange(xw.draw, xw.buf);
2241 XRenderColor color = { .alpha = 0 };
2243 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
2244 for(i = 0; i < LEN(colorname); i++) {
2247 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2248 die("Could not allocate color '%s'\n", colorname[i]);
2252 /* load colors [16-255] ; same colors as xterm */
2253 for(i = 16, r = 0; r < 6; r++) {
2254 for(g = 0; g < 6; g++) {
2255 for(b = 0; b < 6; b++) {
2256 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
2257 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
2258 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
2259 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
2260 die("Could not allocate color %d\n", i);
2267 for(r = 0; r < 24; r++, i++) {
2268 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
2269 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
2271 die("Could not allocate color %d\n", i);
2277 xtermclear(int col1, int row1, int col2, int row2) {
2278 XftDrawRect(xw.draw,
2279 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2280 borderpx + col1 * xw.cw,
2281 borderpx + row1 * xw.ch,
2282 (col2-col1+1) * xw.cw,
2283 (row2-row1+1) * xw.ch);
2287 * Absolute coordinates.
2290 xclear(int x1, int y1, int x2, int y2) {
2291 XftDrawRect(xw.draw,
2292 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2293 x1, y1, x2-x1, y2-y1);
2298 XClassHint class = {opt_class ? opt_class : termname, termname};
2299 XWMHints wm = {.flags = InputHint, .input = 1};
2300 XSizeHints *sizeh = NULL;
2302 sizeh = XAllocSizeHints();
2303 if(xw.isfixed == False) {
2304 sizeh->flags = PSize | PResizeInc | PBaseSize;
2305 sizeh->height = xw.h;
2306 sizeh->width = xw.w;
2307 sizeh->height_inc = xw.ch;
2308 sizeh->width_inc = xw.cw;
2309 sizeh->base_height = 2 * borderpx;
2310 sizeh->base_width = 2 * borderpx;
2312 sizeh->flags = PMaxSize | PMinSize;
2313 sizeh->min_width = sizeh->max_width = xw.fw;
2314 sizeh->min_height = sizeh->max_height = xw.fh;
2317 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
2322 xloadfont(Font *f, FcPattern *pattern) {
2326 match = FcFontMatch(NULL, pattern, &result);
2330 if(!(f->set = FcFontSort(0, match, FcTrue, 0, &result))) {
2331 FcPatternDestroy(match);
2335 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2336 FcPatternDestroy(match);
2340 f->pattern = FcPatternDuplicate(pattern);
2342 f->ascent = f->match->ascent;
2343 f->descent = f->match->descent;
2345 f->rbearing = f->match->max_advance_width;
2347 f->height = f->match->height;
2348 f->width = f->lbearing + f->rbearing;
2354 xloadfonts(char *fontstr, int fontsize) {
2359 if(fontstr[0] == '-') {
2360 pattern = XftXlfdParse(fontstr, False, False);
2362 pattern = FcNameParse((FcChar8 *)fontstr);
2366 die("st: can't open font %s\n", fontstr);
2369 FcPatternDel(pattern, FC_PIXEL_SIZE);
2370 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2371 usedfontsize = fontsize;
2373 result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2374 if(result == FcResultMatch) {
2375 usedfontsize = (int)fontval;
2378 * Default font size is 12, if none given. This is to
2379 * have a known usedfontsize value.
2381 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2386 FcConfigSubstitute(0, pattern, FcMatchPattern);
2387 FcDefaultSubstitute(pattern);
2389 if(xloadfont(&dc.font, pattern))
2390 die("st: can't open font %s\n", fontstr);
2392 /* Setting character width and height. */
2393 xw.cw = dc.font.width;
2394 xw.ch = dc.font.height;
2396 FcPatternDel(pattern, FC_WEIGHT);
2397 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2398 if(xloadfont(&dc.bfont, pattern))
2399 die("st: can't open font %s\n", fontstr);
2401 FcPatternDel(pattern, FC_SLANT);
2402 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2403 if(xloadfont(&dc.ibfont, pattern))
2404 die("st: can't open font %s\n", fontstr);
2406 FcPatternDel(pattern, FC_WEIGHT);
2407 if(xloadfont(&dc.ifont, pattern))
2408 die("st: can't open font %s\n", fontstr);
2410 FcPatternDestroy(pattern);
2419 * Free the loaded fonts in the font cache. This is done backwards
2422 for (i = 0, ip = frccur; i < frclen; i++, ip--) {
2425 XftFontClose(xw.dpy, frc[ip].font);
2430 XftFontClose(xw.dpy, dc.font.match);
2431 FcPatternDestroy(dc.font.pattern);
2432 FcFontSetDestroy(dc.font.set);
2433 XftFontClose(xw.dpy, dc.bfont.match);
2434 FcPatternDestroy(dc.bfont.pattern);
2435 FcFontSetDestroy(dc.bfont.set);
2436 XftFontClose(xw.dpy, dc.ifont.match);
2437 FcPatternDestroy(dc.ifont.pattern);
2438 FcFontSetDestroy(dc.ifont.set);
2439 XftFontClose(xw.dpy, dc.ibfont.match);
2440 FcPatternDestroy(dc.ibfont.pattern);
2441 FcFontSetDestroy(dc.ibfont.set);
2445 xzoom(const Arg *arg)
2448 xloadfonts(usedfont, usedfontsize + arg->i);
2455 XSetWindowAttributes attrs;
2458 int sw, sh, major, minor;
2460 if(!(xw.dpy = XOpenDisplay(NULL)))
2461 die("Can't open display\n");
2462 xw.scr = XDefaultScreen(xw.dpy);
2463 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
2467 die("Could not init fontconfig.\n");
2469 usedfont = (opt_font == NULL)? font : opt_font;
2470 xloadfonts(usedfont, 0);
2473 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
2476 /* adjust fixed window geometry */
2478 sw = DisplayWidth(xw.dpy, xw.scr);
2479 sh = DisplayHeight(xw.dpy, xw.scr);
2481 xw.fx = sw + xw.fx - xw.fw - 1;
2483 xw.fy = sh + xw.fy - xw.fh - 1;
2488 /* window - default size */
2489 xw.h = 2 * borderpx + term.row * xw.ch;
2490 xw.w = 2 * borderpx + term.col * xw.cw;
2495 attrs.background_pixel = dc.col[defaultbg].pixel;
2496 attrs.border_pixel = dc.col[defaultbg].pixel;
2497 attrs.bit_gravity = NorthWestGravity;
2498 attrs.event_mask = FocusChangeMask | KeyPressMask
2499 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
2500 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
2501 attrs.colormap = xw.cmap;
2503 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
2504 xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
2505 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
2507 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
2511 /* double buffering */
2512 if(!XdbeQueryExtension(xw.dpy, &major, &minor))
2513 die("Xdbe extension is not present\n");
2514 xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeBackground);
2516 /* Xft rendering context */
2517 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
2520 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
2521 XSetLocaleModifiers("@im=local");
2522 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
2523 XSetLocaleModifiers("@im=");
2524 if((xw.xim = XOpenIM(xw.dpy,
2525 NULL, NULL, NULL)) == NULL) {
2526 die("XOpenIM failed. Could not open input"
2531 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
2532 | XIMStatusNothing, XNClientWindow, xw.win,
2533 XNFocusWindow, xw.win, NULL);
2535 die("XCreateIC failed. Could not obtain input method.\n");
2537 /* white cursor, black outline */
2538 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
2539 XDefineCursor(xw.dpy, xw.win, cursor);
2540 XRecolorCursor(xw.dpy, cursor,
2541 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
2542 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
2544 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
2545 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
2546 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
2549 XMapWindow(xw.dpy, xw.win);
2555 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
2556 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
2557 width = charlen * xw.cw, xp, i;
2559 int u8fl, u8fblen, u8cblen, doesexist;
2562 Font *font = &dc.font;
2564 FcPattern *fcpattern, *fontpattern;
2565 FcFontSet *fcsets[] = { NULL };
2566 FcCharSet *fccharset;
2567 Colour *fg = &dc.col[base.fg], *bg = &dc.col[base.bg],
2568 *temp, revfg, revbg;
2569 XRenderColor colfg, colbg;
2571 frcflags = FRC_NORMAL;
2573 if(base.mode & ATTR_BOLD) {
2574 if(BETWEEN(base.fg, 0, 7)) {
2575 /* basic system colors */
2576 fg = &dc.col[base.fg + 8];
2577 } else if(BETWEEN(base.fg, 16, 195)) {
2579 fg = &dc.col[base.fg + 36];
2580 } else if(BETWEEN(base.fg, 232, 251)) {
2582 fg = &dc.col[base.fg + 4];
2585 * Those ranges will not be brightened:
2586 * 8 - 15 – bright system colors
2587 * 196 - 231 – highest 256 color cube
2588 * 252 - 255 – brightest colors in greyscale
2591 frcflags = FRC_BOLD;
2594 if(base.mode & ATTR_ITALIC) {
2596 frcflags = FRC_ITALIC;
2598 if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
2600 frcflags = FRC_ITALICBOLD;
2603 if(IS_SET(MODE_REVERSE)) {
2604 if(fg == &dc.col[defaultfg]) {
2605 fg = &dc.col[defaultbg];
2607 colfg.red = ~fg->color.red;
2608 colfg.green = ~fg->color.green;
2609 colfg.blue = ~fg->color.blue;
2610 colfg.alpha = fg->color.alpha;
2611 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
2615 if(bg == &dc.col[defaultbg]) {
2616 bg = &dc.col[defaultfg];
2618 colbg.red = ~bg->color.red;
2619 colbg.green = ~bg->color.green;
2620 colbg.blue = ~bg->color.blue;
2621 colbg.alpha = bg->color.alpha;
2622 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &revbg);
2627 if(base.mode & ATTR_REVERSE) {
2633 /* Intelligent cleaning up of the borders. */
2635 xclear(0, (y == 0)? 0 : winy, borderpx,
2636 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
2638 if(x + charlen >= term.col) {
2639 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
2640 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
2643 xclear(winx, 0, winx + width, borderpx);
2645 xclear(winx, winy + xw.ch, winx + width, xw.h);
2647 /* Clean up the region we want to draw to. */
2648 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
2650 fcsets[0] = font->set;
2651 for (xp = winx; bytelen > 0;) {
2653 * Search for the range in the to be printed string of glyphs
2654 * that are in the main font. Then print that range. If
2655 * some glyph is found that is not in the font, do the
2663 u8cblen = utf8decode(s, &u8char);
2667 doesexist = XftCharIndex(xw.dpy, font->match, u8char);
2668 if (!doesexist || bytelen <= 0) {
2677 XftDrawStringUtf8(xw.draw, fg,
2679 winy + font->ascent,
2682 xp += font->width * u8fl;
2694 /* Search the font cache. */
2695 for (i = 0; i < frclen; i++, frp--) {
2699 if (frc[frp].c == u8char
2700 && frc[frp].flags == frcflags) {
2705 /* Nothing was found. */
2708 * Nothing was found in the cache. Now use
2709 * some dozen of Fontconfig calls to get the
2710 * font for one single character.
2712 fcpattern = FcPatternDuplicate(font->pattern);
2713 fccharset = FcCharSetCreate();
2715 FcCharSetAddChar(fccharset, u8char);
2716 FcPatternAddCharSet(fcpattern, FC_CHARSET,
2718 FcPatternAddBool(fcpattern, FC_SCALABLE,
2721 FcConfigSubstitute(0, fcpattern,
2723 FcDefaultSubstitute(fcpattern);
2725 fontpattern = FcFontSetMatch(0, fcsets,
2726 FcTrue, fcpattern, &fcres);
2729 * Overwrite or create the new cache entry
2734 if (frccur >= LEN(frc))
2736 if (frclen > LEN(frc)) {
2738 XftFontClose(xw.dpy, frc[frccur].font);
2741 frc[frccur].font = XftFontOpenPattern(xw.dpy,
2743 frc[frccur].c = u8char;
2744 frc[frccur].flags = frcflags;
2746 FcPatternDestroy(fcpattern);
2747 FcCharSetDestroy(fccharset);
2752 XftDrawStringUtf8(xw.draw, fg, frc[frp].font,
2753 xp, winy + frc[frp].font->ascent,
2754 (FcChar8 *)u8c, u8cblen);
2760 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
2761 winy + font->ascent, (FcChar8 *)s, bytelen);
2764 if(base.mode & ATTR_UNDERLINE) {
2765 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
2772 static int oldx = 0, oldy = 0;
2774 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs, 0};
2776 LIMIT(oldx, 0, term.col-1);
2777 LIMIT(oldy, 0, term.row-1);
2779 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
2780 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
2782 /* remove the old cursor */
2783 if(term.line[oldy][oldx].state & GLYPH_SET) {
2784 sl = utf8size(term.line[oldy][oldx].c);
2785 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
2788 xtermclear(oldx, oldy, oldx, oldy);
2791 /* draw the new one */
2792 if(!(IS_SET(MODE_HIDE))) {
2793 if(!(xw.state & WIN_FOCUSED))
2796 if(IS_SET(MODE_REVERSE))
2797 g.mode |= ATTR_REVERSE, g.fg = defaultcs, g.bg = defaultfg;
2800 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
2801 oldx = term.c.x, oldy = term.c.y;
2807 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
2812 struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
2816 XSync(xw.dpy, False); /* necessary for a good tput flash */
2817 nanosleep(&tv, NULL);
2822 XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
2824 drawregion(0, 0, term.col, term.row);
2825 XdbeSwapBuffers(xw.dpy, swpinfo, 1);
2829 drawregion(int x1, int y1, int x2, int y2) {
2830 int ic, ib, x, y, ox, sl;
2832 char buf[DRAW_BUF_SIZ];
2833 bool ena_sel = sel.bx != -1;
2835 if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
2838 if(!(xw.state & WIN_VISIBLE))
2841 for(y = y1; y < y2; y++) {
2845 xtermclear(0, y, term.col, y);
2847 base = term.line[y][0];
2849 for(x = x1; x < x2; x++) {
2850 new = term.line[y][x];
2851 if(ena_sel && *(new.c) && selected(x, y))
2852 new.mode ^= ATTR_REVERSE;
2853 if(ib > 0 && (!(new.state & GLYPH_SET)
2854 || ATTRCMP(base, new)
2855 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
2856 xdraws(buf, base, ox, y, ic, ib);
2859 if(new.state & GLYPH_SET) {
2864 sl = utf8size(new.c);
2865 memcpy(buf+ib, new.c, sl);
2871 xdraws(buf, base, ox, y, ic, ib);
2877 expose(XEvent *ev) {
2878 XExposeEvent *e = &ev->xexpose;
2880 if(xw.state & WIN_REDRAW) {
2882 xw.state &= ~WIN_REDRAW;
2887 visibility(XEvent *ev) {
2888 XVisibilityEvent *e = &ev->xvisibility;
2890 if(e->state == VisibilityFullyObscured) {
2891 xw.state &= ~WIN_VISIBLE;
2892 } else if(!(xw.state & WIN_VISIBLE)) {
2893 /* need a full redraw for next Expose, not just a buf copy */
2894 xw.state |= WIN_VISIBLE | WIN_REDRAW;
2900 xw.state &= ~WIN_VISIBLE;
2904 xseturgency(int add) {
2905 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
2907 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
2908 XSetWMHints(xw.dpy, xw.win, h);
2914 if(ev->type == FocusIn) {
2915 XSetICFocus(xw.xic);
2916 xw.state |= WIN_FOCUSED;
2919 XUnsetICFocus(xw.xic);
2920 xw.state &= ~WIN_FOCUSED;
2925 match(uint mask, uint state) {
2926 if(mask == XK_NO_MOD && state)
2928 if(mask != XK_ANY_MOD && mask != XK_NO_MOD && !state)
2930 if((state & mask) != state)
2936 numlock(const Arg *dummy) {
2941 kmap(KeySym k, uint state) {
2946 /* Check for mapped keys out of X11 function keys. */
2947 for(i = 0; i < LEN(mappedkeys); i++) {
2948 if(mappedkeys[i] == k)
2951 if(i == LEN(mappedkeys)) {
2952 if((k & 0xFFFF) < 0xFD00)
2956 for(kp = key; kp < key + LEN(key); kp++) {
2962 if(!match(mask, state))
2965 if(kp->appkey > 0) {
2966 if(!IS_SET(MODE_APPKEYPAD))
2968 if(term.numlock && kp->appkey == 2)
2970 } else if(kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) {
2974 if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
2976 && !IS_SET(MODE_APPCURSOR))) {
2980 if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
2981 (kp->crlf > 0 && !IS_SET(MODE_CRLF))) {
2992 kpress(XEvent *ev) {
2993 XKeyEvent *e = &ev->xkey;
2995 char xstr[31], buf[32], *customkey, *cp = buf;
3000 if (IS_SET(MODE_KBDLOCK))
3003 len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
3004 e->state &= ~Mod2Mask;
3006 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3007 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3008 bp->func(&(bp->arg));
3013 /* 2. custom keys from config.h */
3014 if((customkey = kmap(ksym, e->state))) {
3015 len = strlen(customkey);
3016 memcpy(buf, customkey, len);
3017 /* 2. hardcoded (overrides X lookup) */
3022 if (len == 1 && e->state & Mod1Mask)
3025 memcpy(cp, xstr, len);
3026 len = cp - buf + len;
3030 if(IS_SET(MODE_ECHO))
3036 cmessage(XEvent *e) {
3038 http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
3039 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3040 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3041 xw.state |= WIN_FOCUSED;
3043 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3044 xw.state &= ~WIN_FOCUSED;
3046 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3047 /* Send SIGHUP to shell */
3054 cresize(int width, int height)
3063 col = (xw.w - 2 * borderpx) / xw.cw;
3064 row = (xw.h - 2 * borderpx) / xw.ch;
3073 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3076 cresize(e->xconfigure.width, e->xconfigure.height);
3083 int xfd = XConnectionNumber(xw.dpy), i;
3084 struct timeval drawtimeout, *tv = NULL;
3088 FD_SET(cmdfd, &rfd);
3090 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3093 die("select failed: %s\n", SERRNO);
3097 * Stop after a certain number of reads so the user does not
3098 * feel like the system is stuttering.
3100 if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
3104 * Just wait a bit so it isn't disturbing the
3105 * user and the system is able to write something.
3107 drawtimeout.tv_sec = 0;
3108 drawtimeout.tv_usec = 5;
3115 while(XPending(xw.dpy)) {
3116 XNextEvent(xw.dpy, &ev);
3117 if(XFilterEvent(&ev, None))
3119 if(handler[ev.type])
3120 (handler[ev.type])(&ev);
3129 main(int argc, char *argv[]) {
3130 int i, bitm, xr, yr;
3133 xw.fw = xw.fh = xw.fx = xw.fy = 0;
3136 for(i = 1; i < argc; i++) {
3137 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
3140 opt_class = argv[i];
3143 /* eat all remaining arguments */
3155 bitm = XParseGeometry(argv[i], &xr, &yr, &wr, &hr);
3160 if(bitm & WidthValue)
3162 if(bitm & HeightValue)
3164 if(bitm & XNegative && xw.fx == 0)
3166 if(bitm & XNegative && xw.fy == 0)
3169 if(xw.fh != 0 && xw.fw != 0)
3178 opt_title = argv[i];
3185 opt_embed = argv[i];
3191 setlocale(LC_CTYPE, "");
3192 XSetLocaleModifiers("");