1 /* See LICENSE for licence details. */
14 #include <sys/ioctl.h>
15 #include <sys/select.h>
18 #include <sys/types.h>
22 #include <X11/Xatom.h>
24 #include <X11/Xutil.h>
25 #include <X11/cursorfont.h>
26 #include <X11/keysym.h>
27 #include <X11/Xft/Xft.h>
28 #include <fontconfig/fontconfig.h>
36 #define Draw XftDraw *
37 #define Colour XftColor
38 #define Colourmap Colormap
42 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
44 #elif defined(__FreeBSD__) || defined(__DragonFly__)
50 #define XEMBED_FOCUS_IN 4
51 #define XEMBED_FOCUS_OUT 5
55 #define ESC_BUF_SIZ (128*UTF_SIZ)
56 #define ESC_ARG_SIZ 16
57 #define STR_BUF_SIZ ESC_BUF_SIZ
58 #define STR_ARG_SIZ ESC_ARG_SIZ
59 #define DRAW_BUF_SIZ 20*1024
60 #define XK_ANY_MOD UINT_MAX
62 #define XK_SWITCH_MOD (1<<13)
64 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
67 #define SERRNO strerror(errno)
68 #define MIN(a, b) ((a) < (b) ? (a) : (b))
69 #define MAX(a, b) ((a) < (b) ? (b) : (a))
70 #define LEN(a) (sizeof(a) / sizeof(a[0]))
71 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
72 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
73 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
74 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
75 #define IS_SET(flag) ((term.mode & (flag)) != 0)
76 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
78 #define VT102ID "\033[?6c"
80 enum glyph_attribute {
90 enum cursor_movement {
113 MODE_MOUSEMOTION = 64,
119 MODE_APPCURSOR = 2048,
120 MODE_MOUSESGR = 4096,
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 */
138 enum selection_type {
145 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
147 typedef unsigned char uchar;
148 typedef unsigned int uint;
149 typedef unsigned long ulong;
150 typedef unsigned short ushort;
153 char c[UTF_SIZ]; /* character code */
154 uchar mode; /* attribute flags */
155 ushort fg; /* foreground */
156 ushort bg; /* background */
157 uchar state; /* state flags */
163 Glyph attr; /* current char attributes */
169 /* CSI Escape sequence structs */
170 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
172 char buf[ESC_BUF_SIZ]; /* raw string */
173 int len; /* raw string length */
175 int arg[ESC_ARG_SIZ];
176 int narg; /* nb of args */
180 /* STR Escape sequence structs */
181 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
183 char type; /* ESC type ... */
184 char buf[STR_BUF_SIZ]; /* raw string */
185 int len; /* raw string length */
186 char *args[STR_ARG_SIZ];
187 int narg; /* nb of args */
190 /* Internal representation of the screen */
192 int row; /* nb row */
193 int col; /* nb col */
194 Line *line; /* screen */
195 Line *alt; /* alternate screen */
196 bool *dirty; /* dirtyness of lines */
197 TCursor c; /* cursor */
198 int top; /* top scroll limit */
199 int bot; /* bottom scroll limit */
200 int mode; /* terminal mode flags */
201 int esc; /* escape state flags */
202 bool numlock; /* lock numbers in keyboard */
206 /* Purely graphic info */
212 Atom xembed, wmdeletewin;
218 bool isfixed; /* is fixed geometry? */
219 int fx, fy, fw, fh; /* fixed geometry */
220 int tw, th; /* tty width and height */
221 int w, h; /* window width and height */
222 int ch; /* char height */
223 int cw; /* char width */
224 char state; /* focus, redraw, visible */
231 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
232 signed char appkey; /* application keypad */
233 signed char appcursor; /* application cursor */
234 signed char crlf; /* crlf mode */
237 /* TODO: use better name for vars... */
249 struct timeval tclick1;
250 struct timeval tclick2;
263 void (*func)(const Arg *);
267 /* function definitions used in config.h */
268 static void clippaste(const Arg *);
269 static void numlock(const Arg *);
270 static void selpaste(const Arg *);
271 static void xzoom(const Arg *);
273 /* Config.h for applying patches and the configuration. */
289 /* Drawing Context */
291 Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
292 Font font, bfont, ifont, ibfont;
296 static void die(const char *, ...);
297 static void draw(void);
298 static void redraw(int);
299 static void drawregion(int, int, int, int);
300 static void execsh(void);
301 static void sigchld(int);
302 static void run(void);
304 static void csidump(void);
305 static void csihandle(void);
306 static void csiparse(void);
307 static void csireset(void);
308 static void strdump(void);
309 static void strhandle(void);
310 static void strparse(void);
311 static void strreset(void);
313 static void tclearregion(int, int, int, int, int);
314 static void tcursor(int);
315 static void tdeletechar(int);
316 static void tdeleteline(int);
317 static void tinsertblank(int);
318 static void tinsertblankline(int);
319 static void tmoveto(int, int);
320 static void tmoveato(int x, int y);
321 static void tnew(int, int);
322 static void tnewline(int);
323 static void tputtab(bool);
324 static void tputc(char *, int);
325 static void treset(void);
326 static int tresize(int, int);
327 static void tscrollup(int, int);
328 static void tscrolldown(int, int);
329 static void tsetattr(int*, int);
330 static void tsetchar(char *, Glyph *, int, int);
331 static void tsetscroll(int, int);
332 static void tswapscreen(void);
333 static void tsetdirt(int, int);
334 static void tsetmode(bool, bool, int *, int);
335 static void tfulldirt(void);
336 static void techo(char *, int);
338 static inline bool match(uint, uint);
339 static void ttynew(void);
340 static void ttyread(void);
341 static void ttyresize(void);
342 static void ttywrite(const char *, size_t);
344 static void xdraws(char *, Glyph, int, int, int, int);
345 static void xhints(void);
346 static void xclear(int, int, int, int);
347 static void xdrawcursor(void);
348 static void xinit(void);
349 static void xloadcols(void);
350 static int xsetcolorname(int, const char *);
351 static int xloadfont(Font *, FcPattern *);
352 static void xloadfonts(char *, int);
353 static void xsettitle(char *);
354 static void xresettitle(void);
355 static void xseturgency(int);
356 static void xsetsel(char*);
357 static void xtermclear(int, int, int, int);
358 static void xunloadfonts(void);
359 static void xresize(int, int);
361 static void expose(XEvent *);
362 static void visibility(XEvent *);
363 static void unmap(XEvent *);
364 static char *kmap(KeySym, uint);
365 static void kpress(XEvent *);
366 static void cmessage(XEvent *);
367 static void cresize(int, int);
368 static void resize(XEvent *);
369 static void focus(XEvent *);
370 static void brelease(XEvent *);
371 static void bpress(XEvent *);
372 static void bmotion(XEvent *);
373 static void selnotify(XEvent *);
374 static void selclear(XEvent *);
375 static void selrequest(XEvent *);
377 static void selinit(void);
378 static inline bool selected(int, int);
379 static void selcopy(void);
380 static void selscroll(int, int);
382 static int utf8decode(char *, long *);
383 static int utf8encode(long *, char *);
384 static int utf8size(char *);
385 static int isfullutf8(char *, int);
387 static ssize_t xwrite(int, char *, size_t);
388 static void *xmalloc(size_t);
389 static void *xrealloc(void *, size_t);
390 static void *xcalloc(size_t, size_t);
392 static void (*handler[LASTEvent])(XEvent *) = {
394 [ClientMessage] = cmessage,
395 [ConfigureNotify] = resize,
396 [VisibilityNotify] = visibility,
397 [UnmapNotify] = unmap,
401 [MotionNotify] = bmotion,
402 [ButtonPress] = bpress,
403 [ButtonRelease] = brelease,
404 [SelectionClear] = selclear,
405 [SelectionNotify] = selnotify,
406 [SelectionRequest] = selrequest,
413 static CSIEscape csiescseq;
414 static STREscape strescseq;
417 static Selection sel;
418 static int iofd = -1;
419 static char **opt_cmd = NULL;
420 static char *opt_io = NULL;
421 static char *opt_title = NULL;
422 static char *opt_embed = NULL;
423 static char *opt_class = NULL;
424 static char *opt_font = NULL;
426 static char *usedfont = NULL;
427 static int usedfontsize = 0;
429 /* Font Ring Cache */
444 * Fontcache is a ring buffer, with frccur as current position and frclen as
445 * the current length of used elements.
448 static Fontcache frc[1024];
449 static int frccur = -1, frclen = 0;
452 xwrite(int fd, char *s, size_t len) {
456 ssize_t r = write(fd, s, len);
466 xmalloc(size_t len) {
467 void *p = malloc(len);
470 die("Out of memory\n");
476 xrealloc(void *p, size_t len) {
477 if((p = realloc(p, len)) == NULL)
478 die("Out of memory\n");
484 xcalloc(size_t nmemb, size_t size) {
485 void *p = calloc(nmemb, size);
488 die("Out of memory\n");
494 utf8decode(char *s, long *u) {
500 if(~c & B7) { /* 0xxxxxxx */
503 } else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
504 *u = c&(B4|B3|B2|B1|B0);
506 } else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
507 *u = c&(B3|B2|B1|B0);
509 } else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
516 for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
518 if((c & (B7|B6)) != B7) /* 10xxxxxx */
521 *u |= c & (B5|B4|B3|B2|B1|B0);
524 if((n == 1 && *u < 0x80) ||
525 (n == 2 && *u < 0x800) ||
526 (n == 3 && *u < 0x10000) ||
527 (*u >= 0xD800 && *u <= 0xDFFF)) {
539 utf8encode(long *u, char *s) {
547 *sp = uc; /* 0xxxxxxx */
549 } else if(*u < 0x800) {
550 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
552 } else if(uc < 0x10000) {
553 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
555 } else if(uc <= 0x10FFFF) {
556 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
562 for(i=n,++sp; i>0; --i,++sp)
563 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
575 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
576 UTF-8 otherwise return 0 */
578 isfullutf8(char *s, int b) {
586 } else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) {
588 } else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
590 ((b == 2) && (*c2&(B7|B6)) == B7))) {
592 } else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
594 ((b == 2) && (*c2&(B7|B6)) == B7) ||
595 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) {
608 } else if((c&(B7|B6|B5)) == (B7|B6)) {
610 } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) {
619 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
620 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
624 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
625 if(sel.xtarget == None)
626 sel.xtarget = XA_STRING;
634 return LIMIT(x, 0, term.col-1);
642 return LIMIT(y, 0, term.row-1);
646 selected(int x, int y) {
649 if(sel.ey == y && sel.by == y) {
650 bx = MIN(sel.bx, sel.ex);
651 ex = MAX(sel.bx, sel.ex);
653 return BETWEEN(x, bx, ex);
656 if(sel.type == SEL_RECTANGULAR) {
657 return ((sel.b.y <= y && y <= sel.e.y)
658 && (sel.b.x <= x && x <= sel.e.x));
660 return ((sel.b.y < y && y < sel.e.y)
661 || (y == sel.e.y && x <= sel.e.x))
662 || (y == sel.b.y && x >= sel.b.x
663 && (x <= sel.e.x || sel.b.y != sel.e.y));
667 getbuttoninfo(XEvent *e) {
669 uint state = e->xbutton.state &~Button1Mask;
671 sel.alt = IS_SET(MODE_ALTSCREEN);
673 sel.ex = x2col(e->xbutton.x);
674 sel.ey = y2row(e->xbutton.y);
676 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
677 sel.b.y = MIN(sel.by, sel.ey);
678 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
679 sel.e.y = MAX(sel.by, sel.ey);
681 sel.type = SEL_REGULAR;
682 for(type = 1; type < LEN(selmasks); ++type) {
683 if(match(selmasks[type], state)) {
691 mousereport(XEvent *e) {
692 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
693 button = e->xbutton.button, state = e->xbutton.state,
696 static int ob, ox, oy;
699 if(e->xbutton.type == MotionNotify) {
700 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
704 } else if(!IS_SET(MODE_MOUSESGR)
705 && (e->xbutton.type == ButtonRelease
706 || button == AnyButton)) {
712 if(e->xbutton.type == ButtonPress) {
718 button += (state & ShiftMask ? 4 : 0)
719 + (state & Mod4Mask ? 8 : 0)
720 + (state & ControlMask ? 16 : 0);
723 if(IS_SET(MODE_MOUSESGR)) {
724 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
726 e->xbutton.type == ButtonRelease ? 'm' : 'M');
727 } else if(x < 223 && y < 223) {
728 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
729 32+button, 32+x+1, 32+y+1);
739 if(IS_SET(MODE_MOUSE)) {
741 } else if(e->xbutton.button == Button1) {
744 tsetdirt(sel.b.y, sel.e.y);
748 sel.type = SEL_REGULAR;
749 sel.ex = sel.bx = x2col(e->xbutton.x);
750 sel.ey = sel.by = y2row(e->xbutton.y);
751 } else if(e->xbutton.button == Button4) {
753 } else if(e->xbutton.button == Button5) {
761 int x, y, bufsize, is_selected = 0, size;
767 bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
768 ptr = str = xmalloc(bufsize);
770 /* append every set & selected glyph to the selection */
771 for(y = sel.b.y; y < sel.e.y + 1; y++) {
773 gp = &term.line[y][0];
774 last = gp + term.col;
776 while(--last >= gp && !(last->state & GLYPH_SET))
779 for(x = 0; gp <= last; x++, ++gp) {
780 if(!selected(x, y)) {
786 p = (gp->state & GLYPH_SET) ? gp->c : " ";
788 memcpy(ptr, p, size);
791 /* \n at the end of every selected line except for the last one */
792 if(is_selected && y < sel.e.y)
801 selnotify(XEvent *e) {
802 ulong nitems, ofs, rem;
809 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
810 False, AnyPropertyType, &type, &format,
811 &nitems, &rem, &data)) {
812 fprintf(stderr, "Clipboard allocation failed\n");
815 ttywrite((const char *) data, nitems * format / 8);
817 /* number of 32-bit chunks returned */
818 ofs += nitems * format / 32;
823 selpaste(const Arg *dummy) {
824 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
825 xw.win, CurrentTime);
829 clippaste(const Arg *dummy) {
832 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
833 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
834 xw.win, CurrentTime);
838 selclear(XEvent *e) {
842 tsetdirt(sel.b.y, sel.e.y);
846 selrequest(XEvent *e) {
847 XSelectionRequestEvent *xsre;
849 Atom xa_targets, string;
851 xsre = (XSelectionRequestEvent *) e;
852 xev.type = SelectionNotify;
853 xev.requestor = xsre->requestor;
854 xev.selection = xsre->selection;
855 xev.target = xsre->target;
856 xev.time = xsre->time;
860 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
861 if(xsre->target == xa_targets) {
862 /* respond with the supported type */
863 string = sel.xtarget;
864 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
865 XA_ATOM, 32, PropModeReplace,
866 (uchar *) &string, 1);
867 xev.property = xsre->property;
868 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
869 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
870 xsre->target, 8, PropModeReplace,
871 (uchar *) sel.clip, strlen(sel.clip));
872 xev.property = xsre->property;
875 /* all done, send a notification to the listener */
876 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
877 fprintf(stderr, "Error sending SelectionNotify event\n");
882 /* register the selection for both the clipboard and the primary */
888 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
890 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
891 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
895 brelease(XEvent *e) {
898 if(IS_SET(MODE_MOUSE)) {
903 if(e->xbutton.button == Button2) {
905 } else if(e->xbutton.button == Button1) {
908 term.dirty[sel.ey] = 1;
909 if(sel.bx == sel.ex && sel.by == sel.ey) {
911 gettimeofday(&now, NULL);
913 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
914 /* triple click on the line */
915 sel.b.x = sel.bx = 0;
916 sel.e.x = sel.ex = term.col;
917 sel.b.y = sel.e.y = sel.ey;
919 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
920 /* double click to select word */
922 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
923 term.line[sel.ey][sel.bx-1].c[0] != ' ') {
927 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
928 term.line[sel.ey][sel.ex+1].c[0] != ' ') {
932 sel.b.y = sel.e.y = sel.ey;
940 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
941 gettimeofday(&sel.tclick1, NULL);
946 int oldey, oldex, oldsby, oldsey;
948 if(IS_SET(MODE_MOUSE)) {
962 if(oldey != sel.ey || oldex != sel.ex) {
963 tsetdirt(MIN(sel.b.y, oldsby), MAX(sel.e.y, oldsey));
968 die(const char *errstr, ...) {
971 va_start(ap, errstr);
972 vfprintf(stderr, errstr, ap);
980 char *envshell = getenv("SHELL");
981 const struct passwd *pass = getpwuid(getuid());
982 char buf[sizeof(long) * 8 + 1];
989 setenv("LOGNAME", pass->pw_name, 1);
990 setenv("USER", pass->pw_name, 1);
991 setenv("SHELL", pass->pw_shell, 0);
992 setenv("HOME", pass->pw_dir, 0);
995 snprintf(buf, sizeof(buf), "%lu", xw.win);
996 setenv("WINDOWID", buf, 1);
998 signal(SIGCHLD, SIG_DFL);
999 signal(SIGHUP, SIG_DFL);
1000 signal(SIGINT, SIG_DFL);
1001 signal(SIGQUIT, SIG_DFL);
1002 signal(SIGTERM, SIG_DFL);
1003 signal(SIGALRM, SIG_DFL);
1005 DEFAULT(envshell, shell);
1006 setenv("TERM", termname, 1);
1007 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
1008 execvp(args[0], args);
1016 if(waitpid(pid, &stat, 0) < 0)
1017 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
1019 if(WIFEXITED(stat)) {
1020 exit(WEXITSTATUS(stat));
1029 struct winsize w = {term.row, term.col, 0, 0};
1031 /* seems to work fine on linux, openbsd and freebsd */
1032 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1033 die("openpty failed: %s\n", SERRNO);
1035 switch(pid = fork()) {
1037 die("fork failed\n");
1040 setsid(); /* create a new process group */
1041 dup2(s, STDIN_FILENO);
1042 dup2(s, STDOUT_FILENO);
1043 dup2(s, STDERR_FILENO);
1044 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1045 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
1053 signal(SIGCHLD, sigchld);
1055 iofd = (!strcmp(opt_io, "-")) ?
1057 open(opt_io, O_WRONLY | O_CREAT, 0666);
1059 fprintf(stderr, "Error opening %s:%s\n",
1060 opt_io, strerror(errno));
1070 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
1072 fprintf(stderr, "\n");
1077 static char buf[BUFSIZ];
1078 static int buflen = 0;
1081 int charsize; /* size of utf8 char in bytes */
1085 /* append read bytes to unprocessed bytes */
1086 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1087 die("Couldn't read from shell: %s\n", SERRNO);
1089 /* process every complete utf8 char */
1092 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
1093 charsize = utf8decode(ptr, &utf8c);
1094 utf8encode(&utf8c, s);
1100 /* keep any uncomplete utf8 char for the next call */
1101 memmove(buf, ptr, buflen);
1105 ttywrite(const char *s, size_t n) {
1106 if(write(cmdfd, s, n) == -1)
1107 die("write error on tty: %s\n", SERRNO);
1114 w.ws_row = term.row;
1115 w.ws_col = term.col;
1116 w.ws_xpixel = xw.tw;
1117 w.ws_ypixel = xw.th;
1118 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1119 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
1123 tsetdirt(int top, int bot) {
1126 LIMIT(top, 0, term.row-1);
1127 LIMIT(bot, 0, term.row-1);
1129 for(i = top; i <= bot; i++)
1135 tsetdirt(0, term.row-1);
1142 if(mode == CURSOR_SAVE) {
1144 } else if(mode == CURSOR_LOAD) {
1154 term.c = (TCursor){{
1158 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1160 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1161 for(i = tabspaces; i < term.col; i += tabspaces)
1164 term.bot = term.row - 1;
1165 term.mode = MODE_WRAP;
1167 tclearregion(0, 0, term.col-1, term.row-1, 0);
1169 tcursor(CURSOR_SAVE);
1173 tnew(int col, int row) {
1174 /* set screen size */
1177 term.line = xmalloc(term.row * sizeof(Line));
1178 term.alt = xmalloc(term.row * sizeof(Line));
1179 term.dirty = xmalloc(term.row * sizeof(*term.dirty));
1180 term.tabs = xmalloc(term.col * sizeof(*term.tabs));
1182 for(row = 0; row < term.row; row++) {
1183 term.line[row] = xmalloc(term.col * sizeof(Glyph));
1184 term.alt [row] = xmalloc(term.col * sizeof(Glyph));
1185 term.dirty[row] = 0;
1189 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1196 Line *tmp = term.line;
1198 term.line = term.alt;
1200 term.mode ^= MODE_ALTSCREEN;
1205 tscrolldown(int orig, int n) {
1209 LIMIT(n, 0, term.bot-orig+1);
1211 tclearregion(0, term.bot-n+1, term.col-1, term.bot, 0);
1213 for(i = term.bot; i >= orig+n; i--) {
1214 temp = term.line[i];
1215 term.line[i] = term.line[i-n];
1216 term.line[i-n] = temp;
1219 term.dirty[i-n] = 1;
1226 tscrollup(int orig, int n) {
1229 LIMIT(n, 0, term.bot-orig+1);
1231 tclearregion(0, orig, term.col-1, orig+n-1, 0);
1233 for(i = orig; i <= term.bot-n; i++) {
1234 temp = term.line[i];
1235 term.line[i] = term.line[i+n];
1236 term.line[i+n] = temp;
1239 term.dirty[i+n] = 1;
1242 selscroll(orig, -n);
1246 selscroll(int orig, int n) {
1250 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
1251 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
1255 if(sel.type == SEL_RECTANGULAR) {
1256 if(sel.by < term.top)
1258 if(sel.ey > term.bot)
1261 if(sel.by < term.top) {
1265 if(sel.ey > term.bot) {
1270 sel.b.y = sel.by, sel.b.x = sel.bx;
1271 sel.e.y = sel.ey, sel.e.x = sel.ex;
1276 tnewline(int first_col) {
1280 tscrollup(term.top, 1);
1284 tmoveto(first_col ? 0 : term.c.x, y);
1289 char *p = csiescseq.buf, *np;
1298 csiescseq.buf[csiescseq.len] = '\0';
1299 while(p < csiescseq.buf+csiescseq.len) {
1301 v = strtol(p, &np, 10);
1304 if(v == LONG_MAX || v == LONG_MIN)
1306 csiescseq.arg[csiescseq.narg++] = v;
1308 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1312 csiescseq.mode = *p;
1315 /* for absolute user moves, when decom is set */
1317 tmoveato(int x, int y) {
1318 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1322 tmoveto(int x, int y) {
1325 if(term.c.state & CURSOR_ORIGIN) {
1330 maxy = term.row - 1;
1332 LIMIT(x, 0, term.col-1);
1333 LIMIT(y, miny, maxy);
1334 term.c.state &= ~CURSOR_WRAPNEXT;
1340 tsetchar(char *c, Glyph *attr, int x, int y) {
1341 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1342 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1343 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1344 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1345 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1346 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1347 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1348 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1349 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1353 * The table is proudly stolen from rxvt.
1355 if(attr->mode & ATTR_GFX) {
1356 if(c[0] >= 0x41 && c[0] <= 0x7e
1357 && vt100_0[c[0] - 0x41]) {
1358 c = vt100_0[c[0] - 0x41];
1363 term.line[y][x] = *attr;
1364 memcpy(term.line[y][x].c, c, UTF_SIZ);
1365 term.line[y][x].state |= GLYPH_SET;
1369 tclearregion(int x1, int y1, int x2, int y2, int bce) {
1373 temp = x1, x1 = x2, x2 = temp;
1375 temp = y1, y1 = y2, y2 = temp;
1377 LIMIT(x1, 0, term.col-1);
1378 LIMIT(x2, 0, term.col-1);
1379 LIMIT(y1, 0, term.row-1);
1380 LIMIT(y2, 0, term.row-1);
1382 for(y = y1; y <= y2; y++) {
1384 for(x = x1; x <= x2; x++) {
1386 term.line[y][x] = term.c.attr;
1387 memcpy(term.line[y][x].c, " ", 2);
1388 term.line[y][x].state |= GLYPH_SET;
1390 term.line[y][x].state = 0;
1397 tdeletechar(int n) {
1398 int src = term.c.x + n;
1400 int size = term.col - src;
1402 term.dirty[term.c.y] = 1;
1404 if(src >= term.col) {
1405 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 0);
1409 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1410 size * sizeof(Glyph));
1411 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y, 0);
1415 tinsertblank(int n) {
1418 int size = term.col - dst;
1420 term.dirty[term.c.y] = 1;
1422 if(dst >= term.col) {
1423 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 0);
1427 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1428 size * sizeof(Glyph));
1429 tclearregion(src, term.c.y, dst - 1, term.c.y, 0);
1433 tinsertblankline(int n) {
1434 if(term.c.y < term.top || term.c.y > term.bot)
1437 tscrolldown(term.c.y, n);
1441 tdeleteline(int n) {
1442 if(term.c.y < term.top || term.c.y > term.bot)
1445 tscrollup(term.c.y, n);
1449 tsetattr(int *attr, int l) {
1452 for(i = 0; i < l; i++) {
1455 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
1456 | ATTR_ITALIC | ATTR_BLINK);
1457 term.c.attr.fg = defaultfg;
1458 term.c.attr.bg = defaultbg;
1461 term.c.attr.mode |= ATTR_BOLD;
1464 term.c.attr.mode |= ATTR_ITALIC;
1467 term.c.attr.mode |= ATTR_UNDERLINE;
1469 case 5: /* slow blink */
1470 case 6: /* rapid blink */
1471 term.c.attr.mode |= ATTR_BLINK;
1474 term.c.attr.mode |= ATTR_REVERSE;
1478 term.c.attr.mode &= ~ATTR_BOLD;
1481 term.c.attr.mode &= ~ATTR_ITALIC;
1484 term.c.attr.mode &= ~ATTR_UNDERLINE;
1488 term.c.attr.mode &= ~ATTR_BLINK;
1491 term.c.attr.mode &= ~ATTR_REVERSE;
1494 if(i + 2 < l && attr[i + 1] == 5) {
1496 if(BETWEEN(attr[i], 0, 255)) {
1497 term.c.attr.fg = attr[i];
1500 "erresc: bad fgcolor %d\n",
1505 "erresc(38): gfx attr %d unknown\n",
1510 term.c.attr.fg = defaultfg;
1513 if(i + 2 < l && attr[i + 1] == 5) {
1515 if(BETWEEN(attr[i], 0, 255)) {
1516 term.c.attr.bg = attr[i];
1519 "erresc: bad bgcolor %d\n",
1524 "erresc(48): gfx attr %d unknown\n",
1529 term.c.attr.bg = defaultbg;
1532 if(BETWEEN(attr[i], 30, 37)) {
1533 term.c.attr.fg = attr[i] - 30;
1534 } else if(BETWEEN(attr[i], 40, 47)) {
1535 term.c.attr.bg = attr[i] - 40;
1536 } else if(BETWEEN(attr[i], 90, 97)) {
1537 term.c.attr.fg = attr[i] - 90 + 8;
1538 } else if(BETWEEN(attr[i], 100, 107)) {
1539 term.c.attr.bg = attr[i] - 100 + 8;
1542 "erresc(default): gfx attr %d unknown\n",
1543 attr[i]), csidump();
1551 tsetscroll(int t, int b) {
1554 LIMIT(t, 0, term.row-1);
1555 LIMIT(b, 0, term.row-1);
1565 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
1568 tsetmode(bool priv, bool set, int *args, int narg) {
1572 for(lim = args + narg; args < lim; ++args) {
1576 case 1: /* DECCKM -- Cursor key */
1577 MODBIT(term.mode, set, MODE_APPCURSOR);
1579 case 5: /* DECSCNM -- Reverse video */
1581 MODBIT(term.mode, set, MODE_REVERSE);
1582 if(mode != term.mode)
1583 redraw(REDRAW_TIMEOUT);
1585 case 6: /* DECOM -- Origin */
1586 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1589 case 7: /* DECAWM -- Auto wrap */
1590 MODBIT(term.mode, set, MODE_WRAP);
1592 case 0: /* Error (IGNORED) */
1593 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1594 case 3: /* DECCOLM -- Column (IGNORED) */
1595 case 4: /* DECSCLM -- Scroll (IGNORED) */
1596 case 8: /* DECARM -- Auto repeat (IGNORED) */
1597 case 18: /* DECPFF -- Printer feed (IGNORED) */
1598 case 19: /* DECPEX -- Printer extent (IGNORED) */
1599 case 42: /* DECNRCM -- National characters (IGNORED) */
1600 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1602 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1603 MODBIT(term.mode, !set, MODE_HIDE);
1605 case 1000: /* 1000,1002: enable xterm mouse report */
1606 MODBIT(term.mode, set, MODE_MOUSEBTN);
1607 MODBIT(term.mode, 0, MODE_MOUSEMOTION);
1610 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1611 MODBIT(term.mode, 0, MODE_MOUSEBTN);
1614 MODBIT(term.mode, set, MODE_MOUSESGR);
1616 case 1049: /* = 1047 and 1048 */
1619 if (!allowaltscreen)
1622 alt = IS_SET(MODE_ALTSCREEN);
1624 tclearregion(0, 0, term.col-1,
1627 if(set ^ alt) /* set is always 1 or 0 */
1633 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1637 "erresc: unknown private set/reset mode %d\n",
1643 case 0: /* Error (IGNORED) */
1645 case 2: /* KAM -- keyboard action */
1646 MODBIT(term.mode, set, MODE_KBDLOCK);
1648 case 4: /* IRM -- Insertion-replacement */
1649 MODBIT(term.mode, set, MODE_INSERT);
1651 case 12: /* SRM -- Send/Receive */
1652 MODBIT(term.mode, !set, MODE_ECHO);
1654 case 20: /* LNM -- Linefeed/new line */
1655 MODBIT(term.mode, set, MODE_CRLF);
1659 "erresc: unknown set/reset mode %d\n",
1671 switch(csiescseq.mode) {
1674 fprintf(stderr, "erresc: unknown csi ");
1678 case '@': /* ICH -- Insert <n> blank char */
1679 DEFAULT(csiescseq.arg[0], 1);
1680 tinsertblank(csiescseq.arg[0]);
1682 case 'A': /* CUU -- Cursor <n> Up */
1683 DEFAULT(csiescseq.arg[0], 1);
1684 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1686 case 'B': /* CUD -- Cursor <n> Down */
1687 case 'e': /* VPR --Cursor <n> Down */
1688 DEFAULT(csiescseq.arg[0], 1);
1689 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1691 case 'c': /* DA -- Device Attributes */
1692 if(csiescseq.arg[0] == 0)
1693 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1695 case 'C': /* CUF -- Cursor <n> Forward */
1696 case 'a': /* HPR -- Cursor <n> Forward */
1697 DEFAULT(csiescseq.arg[0], 1);
1698 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1700 case 'D': /* CUB -- Cursor <n> Backward */
1701 DEFAULT(csiescseq.arg[0], 1);
1702 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1704 case 'E': /* CNL -- Cursor <n> Down and first col */
1705 DEFAULT(csiescseq.arg[0], 1);
1706 tmoveto(0, term.c.y+csiescseq.arg[0]);
1708 case 'F': /* CPL -- Cursor <n> Up and first col */
1709 DEFAULT(csiescseq.arg[0], 1);
1710 tmoveto(0, term.c.y-csiescseq.arg[0]);
1712 case 'g': /* TBC -- Tabulation clear */
1713 switch(csiescseq.arg[0]) {
1714 case 0: /* clear current tab stop */
1715 term.tabs[term.c.x] = 0;
1717 case 3: /* clear all the tabs */
1718 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1724 case 'G': /* CHA -- Move to <col> */
1726 DEFAULT(csiescseq.arg[0], 1);
1727 tmoveto(csiescseq.arg[0]-1, term.c.y);
1729 case 'H': /* CUP -- Move to <row> <col> */
1731 DEFAULT(csiescseq.arg[0], 1);
1732 DEFAULT(csiescseq.arg[1], 1);
1733 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1735 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1736 DEFAULT(csiescseq.arg[0], 1);
1737 while(csiescseq.arg[0]--)
1740 case 'J': /* ED -- Clear screen */
1742 switch(csiescseq.arg[0]) {
1744 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 1);
1745 if(term.c.y < term.row-1) {
1746 tclearregion(0, term.c.y+1, term.col-1,
1752 tclearregion(0, 0, term.col-1, term.c.y-1, 1);
1753 tclearregion(0, term.c.y, term.c.x, term.c.y, 1);
1756 tclearregion(0, 0, term.col-1, term.row-1, 1);
1762 case 'K': /* EL -- Clear line */
1763 switch(csiescseq.arg[0]) {
1765 tclearregion(term.c.x, term.c.y, term.col-1,
1769 tclearregion(0, term.c.y, term.c.x, term.c.y, 1);
1772 tclearregion(0, term.c.y, term.col-1, term.c.y, 1);
1776 case 'S': /* SU -- Scroll <n> line up */
1777 DEFAULT(csiescseq.arg[0], 1);
1778 tscrollup(term.top, csiescseq.arg[0]);
1780 case 'T': /* SD -- Scroll <n> line down */
1781 DEFAULT(csiescseq.arg[0], 1);
1782 tscrolldown(term.top, csiescseq.arg[0]);
1784 case 'L': /* IL -- Insert <n> blank lines */
1785 DEFAULT(csiescseq.arg[0], 1);
1786 tinsertblankline(csiescseq.arg[0]);
1788 case 'l': /* RM -- Reset Mode */
1789 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
1791 case 'M': /* DL -- Delete <n> lines */
1792 DEFAULT(csiescseq.arg[0], 1);
1793 tdeleteline(csiescseq.arg[0]);
1795 case 'X': /* ECH -- Erase <n> char */
1796 DEFAULT(csiescseq.arg[0], 1);
1797 tclearregion(term.c.x, term.c.y,
1798 term.c.x + csiescseq.arg[0] - 1, term.c.y, 1);
1800 case 'P': /* DCH -- Delete <n> char */
1801 DEFAULT(csiescseq.arg[0], 1);
1802 tdeletechar(csiescseq.arg[0]);
1804 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
1805 DEFAULT(csiescseq.arg[0], 1);
1806 while(csiescseq.arg[0]--)
1809 case 'd': /* VPA -- Move to <row> */
1810 DEFAULT(csiescseq.arg[0], 1);
1811 tmoveato(term.c.x, csiescseq.arg[0]-1);
1813 case 'h': /* SM -- Set terminal mode */
1814 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
1816 case 'm': /* SGR -- Terminal attribute (color) */
1817 tsetattr(csiescseq.arg, csiescseq.narg);
1819 case 'r': /* DECSTBM -- Set Scrolling Region */
1820 if(csiescseq.priv) {
1823 DEFAULT(csiescseq.arg[0], 1);
1824 DEFAULT(csiescseq.arg[1], term.row);
1825 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
1829 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1830 tcursor(CURSOR_SAVE);
1832 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1833 tcursor(CURSOR_LOAD);
1844 for(i = 0; i < csiescseq.len; i++) {
1845 c = csiescseq.buf[i] & 0xff;
1848 } else if(c == '\n') {
1850 } else if(c == '\r') {
1852 } else if(c == 0x1b) {
1855 printf("(%02x)", c);
1863 memset(&csiescseq, 0, sizeof(csiescseq));
1872 narg = strescseq.narg;
1874 switch(strescseq.type) {
1875 case ']': /* OSC -- Operating System Command */
1876 switch(i = atoi(strescseq.args[0])) {
1881 xsettitle(strescseq.args[1]);
1883 case 4: /* color set */
1886 p = strescseq.args[2];
1888 case 104: /* color reset, here p = NULL */
1889 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
1890 if (!xsetcolorname(j, p)) {
1891 fprintf(stderr, "erresc: invalid color %s\n", p);
1894 * TODO if defaultbg color is changed, borders
1901 fprintf(stderr, "erresc: unknown str ");
1906 case 'k': /* old title set compatibility */
1907 xsettitle(strescseq.args[0]);
1909 case 'P': /* DSC -- Device Control String */
1910 case '_': /* APC -- Application Program Command */
1911 case '^': /* PM -- Privacy Message */
1913 fprintf(stderr, "erresc: unknown str ");
1922 char *p = strescseq.buf;
1925 strescseq.buf[strescseq.len] = '\0';
1926 while(p && strescseq.narg < STR_ARG_SIZ)
1927 strescseq.args[strescseq.narg++] = strsep(&p, ";");
1935 printf("ESC%c", strescseq.type);
1936 for(i = 0; i < strescseq.len; i++) {
1937 c = strescseq.buf[i] & 0xff;
1940 } else if(isprint(c)) {
1942 } else if(c == '\n') {
1944 } else if(c == '\r') {
1946 } else if(c == 0x1b) {
1949 printf("(%02x)", c);
1957 memset(&strescseq, 0, sizeof(strescseq));
1961 tputtab(bool forward) {
1967 for(++x; x < term.col && !term.tabs[x]; ++x)
1972 for(--x; x > 0 && !term.tabs[x]; --x)
1975 tmoveto(x, term.c.y);
1979 techo(char *buf, int len) {
1980 for(; len > 0; buf++, len--) {
1983 if(c == '\033') { /* escape */
1986 } else if(c < '\x20') { /* control code */
1987 if(c != '\n' && c != '\r' && c != '\t') {
2001 tputc(char *c, int len) {
2003 bool control = ascii < '\x20' || ascii == 0177;
2006 if(xwrite(iofd, c, len) < 0) {
2007 fprintf(stderr, "Error writing in %s:%s\n",
2008 opt_io, strerror(errno));
2015 * STR sequences must be checked before anything else
2016 * because it can use some control codes as part of the sequence.
2018 if(term.esc & ESC_STR) {
2021 term.esc = ESC_START | ESC_STR_END;
2023 case '\a': /* backwards compatibility to xterm */
2028 if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2029 memmove(&strescseq.buf[strescseq.len], c, len);
2030 strescseq.len += len;
2033 * Here is a bug in terminals. If the user never sends
2034 * some code to stop the str or esc command, then st
2035 * will stop responding. But this is better than
2036 * silently failing with unknown characters. At least
2037 * then users will report back.
2039 * In the case users ever get fixed, here is the code:
2051 * Actions of control codes must be performed as soon they arrive
2052 * because they can be embedded inside a control sequence, and
2053 * they must not cause conflicts with sequences.
2061 tmoveto(term.c.x-1, term.c.y);
2064 tmoveto(0, term.c.y);
2069 /* go to first col if the mode is set */
2070 tnewline(IS_SET(MODE_CRLF));
2072 case '\a': /* BEL */
2073 if(!(xw.state & WIN_FOCUSED))
2076 case '\033': /* ESC */
2078 term.esc = ESC_START;
2080 case '\016': /* SO */
2081 case '\017': /* SI */
2083 * Different charsets are hard to handle. Applications
2084 * should use the right alt charset escapes for the
2085 * only reason they still exist: line drawing. The
2086 * rest is incompatible history st should not support.
2089 case '\032': /* SUB */
2090 case '\030': /* CAN */
2093 case '\005': /* ENQ (IGNORED) */
2094 case '\000': /* NUL (IGNORED) */
2095 case '\021': /* XON (IGNORED) */
2096 case '\023': /* XOFF (IGNORED) */
2097 case 0177: /* DEL (IGNORED) */
2100 } else if(term.esc & ESC_START) {
2101 if(term.esc & ESC_CSI) {
2102 csiescseq.buf[csiescseq.len++] = ascii;
2103 if(BETWEEN(ascii, 0x40, 0x7E)
2104 || csiescseq.len >= \
2105 sizeof(csiescseq.buf)-1) {
2110 } else if(term.esc & ESC_STR_END) {
2114 } else if(term.esc & ESC_ALTCHARSET) {
2116 case '0': /* Line drawing set */
2117 term.c.attr.mode |= ATTR_GFX;
2119 case 'B': /* USASCII */
2120 term.c.attr.mode &= ~ATTR_GFX;
2122 case 'A': /* UK (IGNORED) */
2123 case '<': /* multinational charset (IGNORED) */
2124 case '5': /* Finnish (IGNORED) */
2125 case 'C': /* Finnish (IGNORED) */
2126 case 'K': /* German (IGNORED) */
2129 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2132 } else if(term.esc & ESC_TEST) {
2133 if(ascii == '8') { /* DEC screen alignment test. */
2134 char E[UTF_SIZ] = "E";
2137 for(x = 0; x < term.col; ++x) {
2138 for(y = 0; y < term.row; ++y)
2139 tsetchar(E, &term.c.attr, x, y);
2146 term.esc |= ESC_CSI;
2149 term.esc |= ESC_TEST;
2151 case 'P': /* DCS -- Device Control String */
2152 case '_': /* APC -- Application Program Command */
2153 case '^': /* PM -- Privacy Message */
2154 case ']': /* OSC -- Operating System Command */
2155 case 'k': /* old title set compatibility */
2157 strescseq.type = ascii;
2158 term.esc |= ESC_STR;
2160 case '(': /* set primary charset G0 */
2161 term.esc |= ESC_ALTCHARSET;
2163 case ')': /* set secondary charset G1 (IGNORED) */
2164 case '*': /* set tertiary charset G2 (IGNORED) */
2165 case '+': /* set quaternary charset G3 (IGNORED) */
2168 case 'D': /* IND -- Linefeed */
2169 if(term.c.y == term.bot) {
2170 tscrollup(term.top, 1);
2172 tmoveto(term.c.x, term.c.y+1);
2176 case 'E': /* NEL -- Next line */
2177 tnewline(1); /* always go to first col */
2180 case 'H': /* HTS -- Horizontal tab stop */
2181 term.tabs[term.c.x] = 1;
2184 case 'M': /* RI -- Reverse index */
2185 if(term.c.y == term.top) {
2186 tscrolldown(term.top, 1);
2188 tmoveto(term.c.x, term.c.y-1);
2192 case 'Z': /* DECID -- Identify Terminal */
2193 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2196 case 'c': /* RIS -- Reset to inital state */
2201 case '=': /* DECPAM -- Application keypad */
2202 term.mode |= MODE_APPKEYPAD;
2205 case '>': /* DECPNM -- Normal keypad */
2206 term.mode &= ~MODE_APPKEYPAD;
2209 case '7': /* DECSC -- Save Cursor */
2210 tcursor(CURSOR_SAVE);
2213 case '8': /* DECRC -- Restore Cursor */
2214 tcursor(CURSOR_LOAD);
2217 case '\\': /* ST -- Stop */
2221 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2222 (uchar) ascii, isprint(ascii)? ascii:'.');
2227 * All characters which form part of a sequence are not
2233 * Display control codes only if we are in graphic mode
2235 if(control && !(term.c.attr.mode & ATTR_GFX))
2237 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
2239 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
2240 tnewline(1); /* always go to first col */
2242 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
2243 memmove(&term.line[term.c.y][term.c.x+1],
2244 &term.line[term.c.y][term.c.x],
2245 (term.col - term.c.x - 1) * sizeof(Glyph));
2248 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2249 if(term.c.x+1 < term.col) {
2250 tmoveto(term.c.x+1, term.c.y);
2252 term.c.state |= CURSOR_WRAPNEXT;
2257 tresize(int col, int row) {
2259 int minrow = MIN(row, term.row);
2260 int mincol = MIN(col, term.col);
2261 int slide = term.c.y - row + 1;
2264 if(col < 1 || row < 1)
2267 /* free unneeded rows */
2271 * slide screen to keep cursor where we expect it -
2272 * tscrollup would work here, but we can optimize to
2273 * memmove because we're freeing the earlier lines
2275 for(/* i = 0 */; i < slide; i++) {
2279 memmove(term.line, term.line + slide, row * sizeof(Line));
2280 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2282 for(i += row; i < term.row; i++) {
2287 /* resize to new height */
2288 term.line = xrealloc(term.line, row * sizeof(Line));
2289 term.alt = xrealloc(term.alt, row * sizeof(Line));
2290 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2291 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2293 /* resize each row to new width, zero-pad if needed */
2294 for(i = 0; i < minrow; i++) {
2296 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2297 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2298 for(x = mincol; x < col; x++) {
2299 term.line[i][x].state = 0;
2300 term.alt[i][x].state = 0;
2304 /* allocate any new rows */
2305 for(/* i == minrow */; i < row; i++) {
2307 term.line[i] = xcalloc(col, sizeof(Glyph));
2308 term.alt [i] = xcalloc(col, sizeof(Glyph));
2310 if(col > term.col) {
2311 bp = term.tabs + term.col;
2313 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2314 while(--bp > term.tabs && !*bp)
2316 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2319 /* update terminal size */
2322 /* reset scrolling region */
2323 tsetscroll(0, row-1);
2324 /* make use of the LIMIT in tmoveto */
2325 tmoveto(term.c.x, term.c.y);
2331 xresize(int col, int row) {
2332 xw.tw = MAX(1, col * xw.cw);
2333 xw.th = MAX(1, row * xw.ch);
2335 XFreePixmap(xw.dpy, xw.buf);
2336 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2337 DefaultDepth(xw.dpy, xw.scr));
2338 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg].pixel);
2339 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
2341 XftDrawChange(xw.draw, xw.buf);
2344 static inline ushort
2345 sixd_to_16bit(int x) {
2346 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2352 XRenderColor color = { .alpha = 0xffff };
2354 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
2355 for(i = 0; i < LEN(colorname); i++) {
2358 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2359 die("Could not allocate color '%s'\n", colorname[i]);
2363 /* load colors [16-255] ; same colors as xterm */
2364 for(i = 16, r = 0; r < 6; r++) {
2365 for(g = 0; g < 6; g++) {
2366 for(b = 0; b < 6; b++) {
2367 color.red = sixd_to_16bit(r);
2368 color.green = sixd_to_16bit(g);
2369 color.blue = sixd_to_16bit(b);
2370 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
2371 die("Could not allocate color %d\n", i);
2378 for(r = 0; r < 24; r++, i++) {
2379 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
2380 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
2382 die("Could not allocate color %d\n", i);
2388 xsetcolorname(int x, const char *name) {
2389 XRenderColor color = { .alpha = 0xffff };
2391 if (x < 0 || x > LEN(colorname))
2394 if(16 <= x && x < 16 + 216) {
2395 int r = (x - 16) / 36, g = ((x - 16) % 36) / 6, b = (x - 16) % 6;
2396 color.red = sixd_to_16bit(r);
2397 color.green = sixd_to_16bit(g);
2398 color.blue = sixd_to_16bit(b);
2399 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2400 return 0; /* something went wrong */
2403 } else if (16 + 216 <= x && x < 256) {
2404 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (x - (16 + 216));
2405 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2406 return 0; /* something went wrong */
2410 name = colorname[x];
2413 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &colour))
2420 xtermclear(int col1, int row1, int col2, int row2) {
2421 XftDrawRect(xw.draw,
2422 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2423 borderpx + col1 * xw.cw,
2424 borderpx + row1 * xw.ch,
2425 (col2-col1+1) * xw.cw,
2426 (row2-row1+1) * xw.ch);
2430 * Absolute coordinates.
2433 xclear(int x1, int y1, int x2, int y2) {
2434 XftDrawRect(xw.draw,
2435 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2436 x1, y1, x2-x1, y2-y1);
2441 XClassHint class = {opt_class ? opt_class : termname, termname};
2442 XWMHints wm = {.flags = InputHint, .input = 1};
2443 XSizeHints *sizeh = NULL;
2445 sizeh = XAllocSizeHints();
2446 if(xw.isfixed == False) {
2447 sizeh->flags = PSize | PResizeInc | PBaseSize;
2448 sizeh->height = xw.h;
2449 sizeh->width = xw.w;
2450 sizeh->height_inc = xw.ch;
2451 sizeh->width_inc = xw.cw;
2452 sizeh->base_height = 2 * borderpx;
2453 sizeh->base_width = 2 * borderpx;
2455 sizeh->flags = PMaxSize | PMinSize;
2456 sizeh->min_width = sizeh->max_width = xw.fw;
2457 sizeh->min_height = sizeh->max_height = xw.fh;
2460 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
2465 xloadfont(Font *f, FcPattern *pattern) {
2469 match = FcFontMatch(NULL, pattern, &result);
2473 if(!(f->set = FcFontSort(0, match, FcTrue, 0, &result))) {
2474 FcPatternDestroy(match);
2478 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2479 FcPatternDestroy(match);
2483 f->pattern = FcPatternDuplicate(pattern);
2485 f->ascent = f->match->ascent;
2486 f->descent = f->match->descent;
2488 f->rbearing = f->match->max_advance_width;
2490 f->height = f->ascent + f->descent;
2491 f->width = f->lbearing + f->rbearing;
2497 xloadfonts(char *fontstr, int fontsize) {
2502 if(fontstr[0] == '-') {
2503 pattern = XftXlfdParse(fontstr, False, False);
2505 pattern = FcNameParse((FcChar8 *)fontstr);
2509 die("st: can't open font %s\n", fontstr);
2512 FcPatternDel(pattern, FC_PIXEL_SIZE);
2513 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2514 usedfontsize = fontsize;
2516 result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2517 if(result == FcResultMatch) {
2518 usedfontsize = (int)fontval;
2521 * Default font size is 12, if none given. This is to
2522 * have a known usedfontsize value.
2524 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2529 FcConfigSubstitute(0, pattern, FcMatchPattern);
2530 FcDefaultSubstitute(pattern);
2532 if(xloadfont(&dc.font, pattern))
2533 die("st: can't open font %s\n", fontstr);
2535 /* Setting character width and height. */
2536 xw.cw = dc.font.width;
2537 xw.ch = dc.font.height;
2539 FcPatternDel(pattern, FC_SLANT);
2540 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2541 if(xloadfont(&dc.ifont, pattern))
2542 die("st: can't open font %s\n", fontstr);
2544 FcPatternDel(pattern, FC_WEIGHT);
2545 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2546 if(xloadfont(&dc.ibfont, pattern))
2547 die("st: can't open font %s\n", fontstr);
2549 FcPatternDel(pattern, FC_SLANT);
2550 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2551 if(xloadfont(&dc.bfont, pattern))
2552 die("st: can't open font %s\n", fontstr);
2554 FcPatternDestroy(pattern);
2558 xunloadfonts(void) {
2562 * Free the loaded fonts in the font cache. This is done backwards
2565 for(i = 0, ip = frccur; i < frclen; i++, ip--) {
2568 XftFontClose(xw.dpy, frc[ip].font);
2573 XftFontClose(xw.dpy, dc.font.match);
2574 FcPatternDestroy(dc.font.pattern);
2575 FcFontSetDestroy(dc.font.set);
2576 XftFontClose(xw.dpy, dc.bfont.match);
2577 FcPatternDestroy(dc.bfont.pattern);
2578 FcFontSetDestroy(dc.bfont.set);
2579 XftFontClose(xw.dpy, dc.ifont.match);
2580 FcPatternDestroy(dc.ifont.pattern);
2581 FcFontSetDestroy(dc.ifont.set);
2582 XftFontClose(xw.dpy, dc.ibfont.match);
2583 FcPatternDestroy(dc.ibfont.pattern);
2584 FcFontSetDestroy(dc.ibfont.set);
2588 xzoom(const Arg *arg) {
2590 xloadfonts(usedfont, usedfontsize + arg->i);
2597 XSetWindowAttributes attrs;
2603 if(!(xw.dpy = XOpenDisplay(NULL)))
2604 die("Can't open display\n");
2605 xw.scr = XDefaultScreen(xw.dpy);
2606 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
2610 die("Could not init fontconfig.\n");
2612 usedfont = (opt_font == NULL)? font : opt_font;
2613 xloadfonts(usedfont, 0);
2616 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
2619 /* adjust fixed window geometry */
2621 sw = DisplayWidth(xw.dpy, xw.scr);
2622 sh = DisplayHeight(xw.dpy, xw.scr);
2624 xw.fx = sw + xw.fx - xw.fw - 1;
2626 xw.fy = sh + xw.fy - xw.fh - 1;
2631 /* window - default size */
2632 xw.h = 2 * borderpx + term.row * xw.ch;
2633 xw.w = 2 * borderpx + term.col * xw.cw;
2639 attrs.background_pixel = dc.col[defaultbg].pixel;
2640 attrs.border_pixel = dc.col[defaultbg].pixel;
2641 attrs.bit_gravity = NorthWestGravity;
2642 attrs.event_mask = FocusChangeMask | KeyPressMask
2643 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
2644 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
2645 attrs.colormap = xw.cmap;
2647 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
2648 XRootWindow(xw.dpy, xw.scr);
2649 xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
2650 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
2652 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
2656 memset(&gcvalues, 0, sizeof(gcvalues));
2657 gcvalues.graphics_exposures = False;
2658 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
2660 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2661 DefaultDepth(xw.dpy, xw.scr));
2662 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
2663 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
2665 /* Xft rendering context */
2666 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
2669 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
2670 XSetLocaleModifiers("@im=local");
2671 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
2672 XSetLocaleModifiers("@im=");
2673 if((xw.xim = XOpenIM(xw.dpy,
2674 NULL, NULL, NULL)) == NULL) {
2675 die("XOpenIM failed. Could not open input"
2680 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
2681 | XIMStatusNothing, XNClientWindow, xw.win,
2682 XNFocusWindow, xw.win, NULL);
2684 die("XCreateIC failed. Could not obtain input method.\n");
2686 /* white cursor, black outline */
2687 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
2688 XDefineCursor(xw.dpy, xw.win, cursor);
2689 XRecolorCursor(xw.dpy, cursor,
2690 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
2691 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
2693 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
2694 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
2695 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
2698 XMapWindow(xw.dpy, xw.win);
2704 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
2705 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
2706 width = charlen * xw.cw, xp, i;
2708 int u8fl, u8fblen, u8cblen, doesexist;
2711 Font *font = &dc.font;
2713 FcPattern *fcpattern, *fontpattern;
2714 FcFontSet *fcsets[] = { NULL };
2715 FcCharSet *fccharset;
2716 Colour *fg, *bg, *temp, revfg, revbg;
2717 XRenderColor colfg, colbg;
2719 frcflags = FRC_NORMAL;
2721 if(base.mode & ATTR_ITALIC) {
2722 if(base.fg == defaultfg)
2723 base.fg = defaultitalic;
2725 frcflags = FRC_ITALIC;
2726 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
2727 if(base.fg == defaultfg)
2728 base.fg = defaultitalic;
2730 frcflags = FRC_ITALICBOLD;
2731 } else if(base.mode & ATTR_UNDERLINE) {
2732 if(base.fg == defaultfg)
2733 base.fg = defaultunderline;
2735 fg = &dc.col[base.fg];
2736 bg = &dc.col[base.bg];
2738 if(base.mode & ATTR_BOLD) {
2739 if(BETWEEN(base.fg, 0, 7)) {
2740 /* basic system colors */
2741 fg = &dc.col[base.fg + 8];
2742 } else if(BETWEEN(base.fg, 16, 195)) {
2744 fg = &dc.col[base.fg + 36];
2745 } else if(BETWEEN(base.fg, 232, 251)) {
2747 fg = &dc.col[base.fg + 4];
2750 * Those ranges will not be brightened:
2751 * 8 - 15 – bright system colors
2752 * 196 - 231 – highest 256 color cube
2753 * 252 - 255 – brightest colors in greyscale
2756 frcflags = FRC_BOLD;
2759 if(IS_SET(MODE_REVERSE)) {
2760 if(fg == &dc.col[defaultfg]) {
2761 fg = &dc.col[defaultbg];
2763 colfg.red = ~fg->color.red;
2764 colfg.green = ~fg->color.green;
2765 colfg.blue = ~fg->color.blue;
2766 colfg.alpha = fg->color.alpha;
2767 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
2771 if(bg == &dc.col[defaultbg]) {
2772 bg = &dc.col[defaultfg];
2774 colbg.red = ~bg->color.red;
2775 colbg.green = ~bg->color.green;
2776 colbg.blue = ~bg->color.blue;
2777 colbg.alpha = bg->color.alpha;
2778 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &revbg);
2783 if(base.mode & ATTR_REVERSE) {
2789 /* Intelligent cleaning up of the borders. */
2791 xclear(0, (y == 0)? 0 : winy, borderpx,
2792 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
2794 if(x + charlen >= term.col) {
2795 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
2796 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
2799 xclear(winx, 0, winx + width, borderpx);
2801 xclear(winx, winy + xw.ch, winx + width, xw.h);
2803 /* Clean up the region we want to draw to. */
2804 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
2806 fcsets[0] = font->set;
2807 for(xp = winx; bytelen > 0;) {
2809 * Search for the range in the to be printed string of glyphs
2810 * that are in the main font. Then print that range. If
2811 * some glyph is found that is not in the font, do the
2819 u8cblen = utf8decode(s, &u8char);
2823 doesexist = XftCharIndex(xw.dpy, font->match, u8char);
2824 if(!doesexist || bytelen <= 0) {
2833 XftDrawStringUtf8(xw.draw, fg,
2835 winy + font->ascent,
2838 xp += font->width * u8fl;
2850 /* Search the font cache. */
2851 for(i = 0; i < frclen; i++, frp--) {
2855 if(frc[frp].c == u8char
2856 && frc[frp].flags == frcflags) {
2861 /* Nothing was found. */
2864 * Nothing was found in the cache. Now use
2865 * some dozen of Fontconfig calls to get the
2866 * font for one single character.
2868 fcpattern = FcPatternDuplicate(font->pattern);
2869 fccharset = FcCharSetCreate();
2871 FcCharSetAddChar(fccharset, u8char);
2872 FcPatternAddCharSet(fcpattern, FC_CHARSET,
2874 FcPatternAddBool(fcpattern, FC_SCALABLE,
2877 FcConfigSubstitute(0, fcpattern,
2879 FcDefaultSubstitute(fcpattern);
2881 fontpattern = FcFontSetMatch(0, fcsets,
2882 FcTrue, fcpattern, &fcres);
2885 * Overwrite or create the new cache entry.
2889 if(frccur >= LEN(frc))
2891 if(frclen > LEN(frc)) {
2893 XftFontClose(xw.dpy, frc[frccur].font);
2896 frc[frccur].font = XftFontOpenPattern(xw.dpy,
2898 frc[frccur].c = u8char;
2899 frc[frccur].flags = frcflags;
2901 FcPatternDestroy(fcpattern);
2902 FcCharSetDestroy(fccharset);
2907 XftDrawStringUtf8(xw.draw, fg, frc[frp].font,
2908 xp, winy + frc[frp].font->ascent,
2909 (FcChar8 *)u8c, u8cblen);
2915 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
2916 winy + font->ascent, (FcChar8 *)s, bytelen);
2919 if(base.mode & ATTR_UNDERLINE) {
2920 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
2927 static int oldx = 0, oldy = 0;
2929 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs, 0};
2931 LIMIT(oldx, 0, term.col-1);
2932 LIMIT(oldy, 0, term.row-1);
2934 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
2935 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
2937 /* remove the old cursor */
2938 if(term.line[oldy][oldx].state & GLYPH_SET) {
2939 sl = utf8size(term.line[oldy][oldx].c);
2940 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
2943 xtermclear(oldx, oldy, oldx, oldy);
2946 /* draw the new one */
2947 if(!(IS_SET(MODE_HIDE))) {
2948 if(!(xw.state & WIN_FOCUSED))
2951 if(IS_SET(MODE_REVERSE))
2952 g.mode |= ATTR_REVERSE, g.fg = defaultcs, g.bg = defaultfg;
2955 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
2956 oldx = term.c.x, oldy = term.c.y;
2962 xsettitle(char *p) {
2965 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
2967 XSetWMName(xw.dpy, xw.win, &prop);
2972 xsettitle(opt_title ? opt_title : "st");
2976 redraw(int timeout) {
2977 struct timespec tv = {0, timeout * 1000};
2983 nanosleep(&tv, NULL);
2984 XSync(xw.dpy, False); /* necessary for a good tput flash */
2990 drawregion(0, 0, term.col, term.row);
2991 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
2993 XSetForeground(xw.dpy, dc.gc,
2994 dc.col[IS_SET(MODE_REVERSE)?
2995 defaultfg : defaultbg].pixel);
2999 drawregion(int x1, int y1, int x2, int y2) {
3000 int ic, ib, x, y, ox, sl;
3002 char buf[DRAW_BUF_SIZ];
3003 bool ena_sel = sel.bx != -1;
3005 if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
3008 if(!(xw.state & WIN_VISIBLE))
3011 for(y = y1; y < y2; y++) {
3015 xtermclear(0, y, term.col, y);
3017 base = term.line[y][0];
3019 for(x = x1; x < x2; x++) {
3020 new = term.line[y][x];
3021 if(ena_sel && *(new.c) && selected(x, y))
3022 new.mode ^= ATTR_REVERSE;
3023 if(ib > 0 && (!(new.state & GLYPH_SET)
3024 || ATTRCMP(base, new)
3025 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3026 xdraws(buf, base, ox, y, ic, ib);
3029 if(new.state & GLYPH_SET) {
3035 sl = utf8size(new.c);
3036 memcpy(buf+ib, new.c, sl);
3042 xdraws(buf, base, ox, y, ic, ib);
3048 expose(XEvent *ev) {
3049 XExposeEvent *e = &ev->xexpose;
3051 if(xw.state & WIN_REDRAW) {
3053 xw.state &= ~WIN_REDRAW;
3059 visibility(XEvent *ev) {
3060 XVisibilityEvent *e = &ev->xvisibility;
3062 if(e->state == VisibilityFullyObscured) {
3063 xw.state &= ~WIN_VISIBLE;
3064 } else if(!(xw.state & WIN_VISIBLE)) {
3065 /* need a full redraw for next Expose, not just a buf copy */
3066 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3072 xw.state &= ~WIN_VISIBLE;
3076 xseturgency(int add) {
3077 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3079 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
3080 XSetWMHints(xw.dpy, xw.win, h);
3086 XFocusChangeEvent *e = &ev->xfocus;
3088 if(e->mode == NotifyGrab)
3091 if(ev->type == FocusIn) {
3092 XSetICFocus(xw.xic);
3093 xw.state |= WIN_FOCUSED;
3096 XUnsetICFocus(xw.xic);
3097 xw.state &= ~WIN_FOCUSED;
3102 match(uint mask, uint state) {
3103 state &= ~(ignoremod);
3105 if(mask == XK_NO_MOD && state)
3107 if(mask != XK_ANY_MOD && mask != XK_NO_MOD && !state)
3109 if((state & mask) != state)
3115 numlock(const Arg *dummy) {
3120 kmap(KeySym k, uint state) {
3125 /* Check for mapped keys out of X11 function keys. */
3126 for(i = 0; i < LEN(mappedkeys); i++) {
3127 if(mappedkeys[i] == k)
3130 if(i == LEN(mappedkeys)) {
3131 if((k & 0xFFFF) < 0xFD00)
3135 for(kp = key; kp < key + LEN(key); kp++) {
3141 if(!match(mask, state))
3144 if(kp->appkey > 0) {
3145 if(!IS_SET(MODE_APPKEYPAD))
3147 if(term.numlock && kp->appkey == 2)
3149 } else if(kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) {
3153 if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
3155 && !IS_SET(MODE_APPCURSOR))) {
3159 if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
3160 (kp->crlf > 0 && !IS_SET(MODE_CRLF))) {
3171 kpress(XEvent *ev) {
3172 XKeyEvent *e = &ev->xkey;
3174 char xstr[31], buf[32], *customkey, *cp = buf;
3179 if(IS_SET(MODE_KBDLOCK))
3182 len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
3183 e->state &= ~Mod2Mask;
3185 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3186 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3187 bp->func(&(bp->arg));
3192 /* 2. custom keys from config.h */
3193 if((customkey = kmap(ksym, e->state))) {
3194 len = strlen(customkey);
3195 memcpy(buf, customkey, len);
3196 /* 2. hardcoded (overrides X lookup) */
3201 if(len == 1 && e->state & Mod1Mask)
3204 memcpy(cp, xstr, len);
3205 len = cp - buf + len;
3209 if(IS_SET(MODE_ECHO))
3215 cmessage(XEvent *e) {
3218 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3220 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3221 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3222 xw.state |= WIN_FOCUSED;
3224 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3225 xw.state &= ~WIN_FOCUSED;
3227 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3228 /* Send SIGHUP to shell */
3235 cresize(int width, int height) {
3243 col = (xw.w - 2 * borderpx) / xw.cw;
3244 row = (xw.h - 2 * borderpx) / xw.ch;
3253 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3256 cresize(e->xconfigure.width, e->xconfigure.height);
3263 int xfd = XConnectionNumber(xw.dpy), xev;
3264 struct timeval drawtimeout, *tv = NULL, now, last;
3266 gettimeofday(&last, NULL);
3268 for(xev = actionfps;;) {
3270 FD_SET(cmdfd, &rfd);
3272 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3275 die("select failed: %s\n", SERRNO);
3278 gettimeofday(&now, NULL);
3279 drawtimeout.tv_sec = 0;
3280 drawtimeout.tv_usec = (1000/xfps) * 1000;
3283 if(FD_ISSET(cmdfd, &rfd))
3286 if(FD_ISSET(xfd, &rfd))
3289 if(TIMEDIFF(now, last) > \
3290 (xev ? (1000/xfps) : (1000/actionfps))) {
3291 while(XPending(xw.dpy)) {
3292 XNextEvent(xw.dpy, &ev);
3293 if(XFilterEvent(&ev, None))
3295 if(handler[ev.type])
3296 (handler[ev.type])(&ev);
3303 if(xev && !FD_ISSET(xfd, &rfd))
3305 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd))
3313 die("%s " VERSION " (c) 2010-2013 st engineers\n" \
3314 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3315 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3319 main(int argc, char *argv[]) {
3323 xw.fw = xw.fh = xw.fx = xw.fy = 0;
3328 allowaltscreen = false;
3331 opt_class = EARGF(usage());
3334 /* eat all remaining arguments */
3339 opt_font = EARGF(usage());
3342 bitm = XParseGeometry(EARGF(usage()), &xr, &yr, &wr, &hr);
3347 if(bitm & WidthValue)
3349 if(bitm & HeightValue)
3351 if(bitm & XNegative && xw.fx == 0)
3353 if(bitm & XNegative && xw.fy == 0)
3356 if(xw.fh != 0 && xw.fw != 0)
3360 opt_io = EARGF(usage());
3363 opt_title = EARGF(usage());
3366 opt_embed = EARGF(usage());
3374 setlocale(LC_CTYPE, "");
3375 XSetLocaleModifiers("");