1 /* See LICENSE for licence details. */
15 #include <sys/ioctl.h>
16 #include <sys/select.h>
19 #include <sys/types.h>
24 #include <X11/Xatom.h>
26 #include <X11/Xutil.h>
27 #include <X11/cursorfont.h>
28 #include <X11/keysym.h>
29 #include <X11/Xft/Xft.h>
30 #include <fontconfig/fontconfig.h>
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
54 #define UTF_INVALID 0xFFFD
56 #define ESC_BUF_SIZ (128*UTF_SIZ)
57 #define ESC_ARG_SIZ 16
58 #define STR_BUF_SIZ ESC_BUF_SIZ
59 #define STR_ARG_SIZ ESC_ARG_SIZ
60 #define DRAW_BUF_SIZ 20*1024
61 #define XK_ANY_MOD UINT_MAX
63 #define XK_SWITCH_MOD (1<<13)
65 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
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 ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f))
74 #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
75 #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
76 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
77 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
78 #define IS_SET(flag) ((term.mode & (flag)) != 0)
79 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_nsec-t2.tv_nsec)/1E6)
80 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
82 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
83 #define IS_TRUECOL(x) (1 << 24 & (x))
84 #define TRUERED(x) (((x) & 0xff0000) >> 8)
85 #define TRUEGREEN(x) (((x) & 0xff00))
86 #define TRUEBLUE(x) (((x) & 0xff) << 8)
89 enum glyph_attribute {
104 enum cursor_movement {
122 MODE_MOUSEMOTION = 64,
127 MODE_APPCURSOR = 2048,
128 MODE_MOUSESGR = 4096,
133 MODE_MOUSEX10 = 131072,
134 MODE_MOUSEMANY = 262144,
135 MODE_BRCKTPASTE = 524288,
136 MODE_PRINT = 1048576,
137 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
154 ESC_STR = 4, /* DCS, OSC, PM, APC */
156 ESC_STR_END = 16, /* a final string was encountered */
157 ESC_TEST = 32, /* Enter in test mode */
166 enum selection_type {
171 enum selection_snap {
176 typedef unsigned char uchar;
177 typedef unsigned int uint;
178 typedef unsigned long ulong;
179 typedef unsigned short ushort;
181 typedef XftDraw *Draw;
182 typedef XftColor Color;
185 char c[UTF_SIZ]; /* character code */
186 ushort mode; /* attribute flags */
187 uint32_t fg; /* foreground */
188 uint32_t bg; /* background */
194 Glyph attr; /* current char attributes */
200 /* CSI Escape sequence structs */
201 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
203 char buf[ESC_BUF_SIZ]; /* raw string */
204 int len; /* raw string length */
206 int arg[ESC_ARG_SIZ];
207 int narg; /* nb of args */
211 /* STR Escape sequence structs */
212 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
214 char type; /* ESC type ... */
215 char buf[STR_BUF_SIZ]; /* raw string */
216 int len; /* raw string length */
217 char *args[STR_ARG_SIZ];
218 int narg; /* nb of args */
221 /* Internal representation of the screen */
223 int row; /* nb row */
224 int col; /* nb col */
225 Line *line; /* screen */
226 Line *alt; /* alternate screen */
227 bool *dirty; /* dirtyness of lines */
228 TCursor c; /* cursor */
229 int top; /* top scroll limit */
230 int bot; /* bottom scroll limit */
231 int mode; /* terminal mode flags */
232 int esc; /* escape state flags */
233 char trantbl[4]; /* charset table translation */
234 int charset; /* current charset */
235 int icharset; /* selected charset for sequence */
236 bool numlock; /* lock numbers in keyboard */
240 /* Purely graphic info */
246 Atom xembed, wmdeletewin, netwmname, netwmpid;
251 XSetWindowAttributes attrs;
253 bool isfixed; /* is fixed geometry? */
254 int l, t; /* left and top offset */
255 int gm; /* geometry mask */
256 int tw, th; /* tty width and height */
257 int w, h; /* window width and height */
258 int ch; /* char height */
259 int cw; /* char width */
260 char state; /* focus, redraw, visible */
273 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
274 signed char appkey; /* application keypad */
275 signed char appcursor; /* application cursor */
276 signed char crlf; /* crlf mode */
284 * Selection variables:
285 * nb – normalized coordinates of the beginning of the selection
286 * ne – normalized coordinates of the end of the selection
287 * ob – original coordinates of the beginning of the selection
288 * oe – original coordinates of the end of the selection
297 struct timespec tclick1;
298 struct timespec tclick2;
311 void (*func)(const Arg *);
315 /* function definitions used in config.h */
316 static void clippaste(const Arg *);
317 static void numlock(const Arg *);
318 static void selpaste(const Arg *);
319 static void xzoom(const Arg *);
320 static void printsel(const Arg *);
321 static void printscreen(const Arg *) ;
322 static void toggleprinter(const Arg *);
324 /* Config.h for applying patches and the configuration. */
340 /* Drawing Context */
342 Color col[MAX(LEN(colorname), 256)];
343 Font font, bfont, ifont, ibfont;
347 static void die(const char *, ...);
348 static void draw(void);
349 static void redraw(int);
350 static void drawregion(int, int, int, int);
351 static void execsh(void);
352 static void sigchld(int);
353 static void run(void);
355 static void csidump(void);
356 static void csihandle(void);
357 static void csiparse(void);
358 static void csireset(void);
359 static void strdump(void);
360 static void strhandle(void);
361 static void strparse(void);
362 static void strreset(void);
364 static int tattrset(int);
365 static void tprinter(char *, size_t);
366 static void tdumpsel(void);
367 static void tdumpline(int);
368 static void tdump(void);
369 static void tclearregion(int, int, int, int);
370 static void tcursor(int);
371 static void tdeletechar(int);
372 static void tdeleteline(int);
373 static void tinsertblank(int);
374 static void tinsertblankline(int);
375 static int tlinelen(int);
376 static void tmoveto(int, int);
377 static void tmoveato(int, int);
378 static void tnew(int, int);
379 static void tnewline(int);
380 static void tputtab(int);
381 static void tputc(char *, int);
382 static void treset(void);
383 static void tresize(int, int);
384 static void tscrollup(int, int);
385 static void tscrolldown(int, int);
386 static void tsetattr(int *, int);
387 static void tsetchar(char *, Glyph *, int, int);
388 static void tsetscroll(int, int);
389 static void tswapscreen(void);
390 static void tsetdirt(int, int);
391 static void tsetdirtattr(int);
392 static void tsetmode(bool, bool, int *, int);
393 static void tfulldirt(void);
394 static void techo(char *, int);
395 static void tcontrolcode(uchar );
396 static void tdectest(char );
397 static int32_t tdefcolor(int *, int *, int);
398 static void tdeftran(char);
399 static inline bool match(uint, uint);
400 static void ttynew(void);
401 static void ttyread(void);
402 static void ttyresize(void);
403 static void ttysend(char *, size_t);
404 static void ttywrite(const char *, size_t);
405 static void tstrsequence(uchar c);
407 static void xdraws(char *, Glyph, int, int, int, int);
408 static void xhints(void);
409 static void xclear(int, int, int, int);
410 static void xdrawcursor(void);
411 static void xinit(void);
412 static void xloadcols(void);
413 static int xsetcolorname(int, const char *);
414 static int xgeommasktogravity(int);
415 static int xloadfont(Font *, FcPattern *);
416 static void xloadfonts(char *, double);
417 static int xloadfontset(Font *);
418 static void xsettitle(char *);
419 static void xresettitle(void);
420 static void xsetpointermotion(int);
421 static void xseturgency(int);
422 static void xsetsel(char *);
423 static void xtermclear(int, int, int, int);
424 static void xunloadfont(Font *);
425 static void xunloadfonts(void);
426 static void xresize(int, int);
428 static void expose(XEvent *);
429 static void visibility(XEvent *);
430 static void unmap(XEvent *);
431 static char *kmap(KeySym, uint);
432 static void kpress(XEvent *);
433 static void cmessage(XEvent *);
434 static void cresize(int, int);
435 static void resize(XEvent *);
436 static void focus(XEvent *);
437 static void brelease(XEvent *);
438 static void bpress(XEvent *);
439 static void bmotion(XEvent *);
440 static void selnotify(XEvent *);
441 static void selclear(XEvent *);
442 static void selrequest(XEvent *);
444 static void selinit(void);
445 static void selnormalize(void);
446 static inline bool selected(int, int);
447 static char *getsel(void);
448 static void selcopy(void);
449 static void selscroll(int, int);
450 static void selsnap(int, int *, int *, int);
451 static void getbuttoninfo(XEvent *);
452 static void mousereport(XEvent *);
454 static size_t utf8decode(char *, long *, size_t);
455 static long utf8decodebyte(char, size_t *);
456 static size_t utf8encode(long, char *, size_t);
457 static char utf8encodebyte(long, size_t);
458 static size_t utf8len(char *);
459 static size_t utf8validate(long *, size_t);
461 static ssize_t xwrite(int, const char *, size_t);
462 static void *xmalloc(size_t);
463 static void *xrealloc(void *, size_t);
464 static char *xstrdup(char *);
466 static void usage(void);
468 static void (*handler[LASTEvent])(XEvent *) = {
470 [ClientMessage] = cmessage,
471 [ConfigureNotify] = resize,
472 [VisibilityNotify] = visibility,
473 [UnmapNotify] = unmap,
477 [MotionNotify] = bmotion,
478 [ButtonPress] = bpress,
479 [ButtonRelease] = brelease,
480 [SelectionClear] = selclear,
481 [SelectionNotify] = selnotify,
482 [SelectionRequest] = selrequest,
489 static CSIEscape csiescseq;
490 static STREscape strescseq;
493 static Selection sel;
494 static int iofd = STDOUT_FILENO;
495 static char **opt_cmd = NULL;
496 static char *opt_io = NULL;
497 static char *opt_title = NULL;
498 static char *opt_embed = NULL;
499 static char *opt_class = NULL;
500 static char *opt_font = NULL;
501 static int oldbutton = 3; /* button event on startup: 3 = release */
503 static char *usedfont = NULL;
504 static double usedfontsize = 0;
506 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
507 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
508 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
509 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
511 /* Font Ring Cache */
524 /* Fontcache is an array now. A new font will be appended to the array. */
525 static Fontcache frc[16];
526 static int frclen = 0;
529 xwrite(int fd, const char *s, size_t len) {
533 ssize_t r = write(fd, s, len);
543 xmalloc(size_t len) {
544 void *p = malloc(len);
547 die("Out of memory\n");
553 xrealloc(void *p, size_t len) {
554 if((p = realloc(p, len)) == NULL)
555 die("Out of memory\n");
562 if((s = strdup(s)) == NULL)
563 die("Out of memory\n");
569 utf8decode(char *c, long *u, size_t clen) {
570 size_t i, j, len, type;
576 udecoded = utf8decodebyte(c[0], &len);
577 if(!BETWEEN(len, 1, UTF_SIZ))
579 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
580 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
587 utf8validate(u, len);
592 utf8decodebyte(char c, size_t *i) {
593 for(*i = 0; *i < LEN(utfmask); ++(*i))
594 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
595 return (uchar)c & ~utfmask[*i];
600 utf8encode(long u, char *c, size_t clen) {
603 len = utf8validate(&u, 0);
606 for(i = len - 1; i != 0; --i) {
607 c[i] = utf8encodebyte(u, 0);
610 c[0] = utf8encodebyte(u, len);
615 utf8encodebyte(long u, size_t i) {
616 return utfbyte[i] | (u & ~utfmask[i]);
621 return utf8decode(c, &(long){0}, UTF_SIZ);
625 utf8validate(long *u, size_t i) {
626 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
628 for(i = 1; *u > utfmax[i]; ++i)
635 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
636 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
640 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
641 if(sel.xtarget == None)
642 sel.xtarget = XA_STRING;
650 return LIMIT(x, 0, term.col-1);
658 return LIMIT(y, 0, term.row-1);
661 static int tlinelen(int y) {
664 while (i > 0 && term.line[y][i - 1].c[0] == ' ')
674 if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
675 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
676 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
678 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
679 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
681 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
682 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
684 /* expand selection over line breaks */
685 if (sel.type == SEL_RECTANGULAR)
687 i = tlinelen(sel.nb.y);
690 if (tlinelen(sel.ne.y) <= sel.ne.x)
691 sel.ne.x = term.col - 1;
695 selected(int x, int y) {
696 if(sel.type == SEL_RECTANGULAR)
697 return BETWEEN(y, sel.nb.y, sel.ne.y)
698 && BETWEEN(x, sel.nb.x, sel.ne.x);
700 return BETWEEN(y, sel.nb.y, sel.ne.y)
701 && (y != sel.nb.y || x >= sel.nb.x)
702 && (y != sel.ne.y || x <= sel.ne.x);
706 selsnap(int mode, int *x, int *y, int direction) {
707 int newx, newy, xt, yt;
713 * Snap around if the word wraps around at the end or
714 * beginning of a line.
717 newx = *x + direction;
719 if(!BETWEEN(newx, 0, term.col - 1)) {
721 newx = (newx + term.col) % term.col;
722 if (!BETWEEN(newy, 0, term.row - 1))
728 yt = newy, xt = newx;
729 if(!(term.line[yt][xt].mode & ATTR_WRAP))
733 if (newx >= tlinelen(newy))
736 gp = &term.line[newy][newx];
737 if (!(gp->mode & ATTR_WDUMMY) && strchr(worddelimiters, gp->c[0]))
746 * Snap around if the the previous line or the current one
747 * has set ATTR_WRAP at its end. Then the whole next or
748 * previous line will be selected.
750 *x = (direction < 0) ? 0 : term.col - 1;
751 if(direction < 0 && *y > 0) {
752 for(; *y > 0; *y += direction) {
753 if(!(term.line[*y-1][term.col-1].mode
758 } else if(direction > 0 && *y < term.row-1) {
759 for(; *y < term.row; *y += direction) {
760 if(!(term.line[*y][term.col-1].mode
771 getbuttoninfo(XEvent *e) {
773 uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
775 sel.alt = IS_SET(MODE_ALTSCREEN);
777 sel.oe.x = x2col(e->xbutton.x);
778 sel.oe.y = y2row(e->xbutton.y);
780 if(sel.ob.y < sel.oe.y
781 || (sel.ob.y == sel.oe.y && sel.ob.x < sel.oe.x)) {
782 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
783 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
785 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
786 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
790 sel.type = SEL_REGULAR;
791 for(type = 1; type < LEN(selmasks); ++type) {
792 if(match(selmasks[type], state)) {
800 mousereport(XEvent *e) {
801 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
802 button = e->xbutton.button, state = e->xbutton.state,
808 if(e->xbutton.type == MotionNotify) {
809 if(x == ox && y == oy)
811 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
813 /* MOUSE_MOTION: no reporting if no button is pressed */
814 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
817 button = oldbutton + 32;
821 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
828 if(e->xbutton.type == ButtonPress) {
832 } else if(e->xbutton.type == ButtonRelease) {
834 /* MODE_MOUSEX10: no button release reporting */
835 if(IS_SET(MODE_MOUSEX10))
837 if (button == 64 || button == 65)
842 if(!IS_SET(MODE_MOUSEX10)) {
843 button += (state & ShiftMask ? 4 : 0)
844 + (state & Mod4Mask ? 8 : 0)
845 + (state & ControlMask ? 16 : 0);
849 if(IS_SET(MODE_MOUSESGR)) {
850 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
852 e->xbutton.type == ButtonRelease ? 'm' : 'M');
853 } else if(x < 223 && y < 223) {
854 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
855 32+button, 32+x+1, 32+y+1);
868 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
873 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
874 if(e->xbutton.button == mk->b
875 && match(mk->mask, e->xbutton.state)) {
876 ttysend(mk->s, strlen(mk->s));
881 if(e->xbutton.button == Button1) {
882 clock_gettime(CLOCK_MONOTONIC, &now);
884 /* Clear previous selection, logically and visually. */
887 sel.type = SEL_REGULAR;
888 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
889 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
892 * If the user clicks below predefined timeouts specific
893 * snapping behaviour is exposed.
895 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
896 sel.snap = SNAP_LINE;
897 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
898 sel.snap = SNAP_WORD;
902 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
903 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
907 * Draw selection, unless it's regular and we don't want to
908 * make clicks visible
912 tsetdirt(sel.nb.y, sel.ne.y);
914 sel.tclick2 = sel.tclick1;
922 int y, bufsize, size, lastx, linelen;
928 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
929 ptr = str = xmalloc(bufsize);
931 /* append every set & selected glyph to the selection */
932 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
933 linelen = tlinelen(y);
935 if(sel.type == SEL_RECTANGULAR) {
936 gp = &term.line[y][sel.nb.x];
939 gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
940 lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
942 last = &term.line[y][MIN(lastx, linelen-1)];
944 for( ; gp <= last; ++gp) {
945 if(gp->mode & ATTR_WDUMMY)
948 size = utf8len(gp->c);
949 memcpy(ptr, gp->c, size);
954 * Copy and pasting of line endings is inconsistent
955 * in the inconsistent terminal and GUI world.
956 * The best solution seems like to produce '\n' when
957 * something is copied from st and convert '\n' to
958 * '\r', when something to be pasted is received by
960 * FIXME: Fix the computer world.
962 if(sel.ne.y > y || lastx >= linelen)
975 selnotify(XEvent *e) {
976 ulong nitems, ofs, rem;
978 uchar *data, *last, *repl;
983 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
984 False, AnyPropertyType, &type, &format,
985 &nitems, &rem, &data)) {
986 fprintf(stderr, "Clipboard allocation failed\n");
992 * Line endings are inconsistent in the terminal and GUI world
993 * copy and pasting. When receiving some selection data,
994 * replace all '\n' with '\r'.
995 * FIXME: Fix the computer world.
998 last = data + nitems * format / 8;
999 while((repl = memchr(repl, '\n', last - repl))) {
1003 if(IS_SET(MODE_BRCKTPASTE))
1004 ttywrite("\033[200~", 6);
1005 ttysend((char *)data, nitems * format / 8);
1006 if(IS_SET(MODE_BRCKTPASTE))
1007 ttywrite("\033[201~", 6);
1009 /* number of 32-bit chunks returned */
1010 ofs += nitems * format / 32;
1015 selpaste(const Arg *dummy) {
1016 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1017 xw.win, CurrentTime);
1021 clippaste(const Arg *dummy) {
1024 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1025 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
1026 xw.win, CurrentTime);
1030 selclear(XEvent *e) {
1034 tsetdirt(sel.nb.y, sel.ne.y);
1038 selrequest(XEvent *e) {
1039 XSelectionRequestEvent *xsre;
1040 XSelectionEvent xev;
1041 Atom xa_targets, string;
1043 xsre = (XSelectionRequestEvent *) e;
1044 xev.type = SelectionNotify;
1045 xev.requestor = xsre->requestor;
1046 xev.selection = xsre->selection;
1047 xev.target = xsre->target;
1048 xev.time = xsre->time;
1050 xev.property = None;
1052 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1053 if(xsre->target == xa_targets) {
1054 /* respond with the supported type */
1055 string = sel.xtarget;
1056 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1057 XA_ATOM, 32, PropModeReplace,
1058 (uchar *) &string, 1);
1059 xev.property = xsre->property;
1060 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
1061 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1062 xsre->target, 8, PropModeReplace,
1063 (uchar *) sel.clip, strlen(sel.clip));
1064 xev.property = xsre->property;
1067 /* all done, send a notification to the listener */
1068 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1069 fprintf(stderr, "Error sending SelectionNotify event\n");
1073 xsetsel(char *str) {
1074 /* register the selection for both the clipboard and the primary */
1080 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1082 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1083 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1087 brelease(XEvent *e) {
1088 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1093 if(e->xbutton.button == Button2) {
1095 } else if(e->xbutton.button == Button1) {
1103 tsetdirt(sel.nb.y, sel.ne.y);
1108 bmotion(XEvent *e) {
1109 int oldey, oldex, oldsby, oldsey;
1111 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1126 if(oldey != sel.oe.y || oldex != sel.oe.x)
1127 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1131 die(const char *errstr, ...) {
1134 va_start(ap, errstr);
1135 vfprintf(stderr, errstr, ap);
1143 char *envshell = getenv("SHELL");
1144 const struct passwd *pass = getpwuid(getuid());
1145 char buf[sizeof(long) * 8 + 1];
1147 unsetenv("COLUMNS");
1149 unsetenv("TERMCAP");
1152 setenv("LOGNAME", pass->pw_name, 1);
1153 setenv("USER", pass->pw_name, 1);
1154 setenv("SHELL", pass->pw_shell, 0);
1155 setenv("HOME", pass->pw_dir, 0);
1158 snprintf(buf, sizeof(buf), "%lu", xw.win);
1159 setenv("WINDOWID", buf, 1);
1161 signal(SIGCHLD, SIG_DFL);
1162 signal(SIGHUP, SIG_DFL);
1163 signal(SIGINT, SIG_DFL);
1164 signal(SIGQUIT, SIG_DFL);
1165 signal(SIGTERM, SIG_DFL);
1166 signal(SIGALRM, SIG_DFL);
1168 DEFAULT(envshell, shell);
1169 setenv("TERM", termname, 1);
1170 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
1171 execvp(args[0], args);
1179 if(waitpid(pid, &stat, 0) < 0)
1180 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1182 ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
1183 if (ret != EXIT_SUCCESS)
1184 die("child finished with error '%d'\n", stat);
1191 struct winsize w = {term.row, term.col, 0, 0};
1193 /* seems to work fine on linux, openbsd and freebsd */
1194 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1195 die("openpty failed: %s\n", strerror(errno));
1197 switch(pid = fork()) {
1199 die("fork failed\n");
1202 setsid(); /* create a new process group */
1203 dup2(s, STDIN_FILENO);
1204 dup2(s, STDOUT_FILENO);
1205 dup2(s, STDERR_FILENO);
1206 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1207 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1215 signal(SIGCHLD, sigchld);
1217 term.mode |= MODE_PRINT;
1218 iofd = (!strcmp(opt_io, "-")) ?
1220 open(opt_io, O_WRONLY | O_CREAT, 0666);
1222 fprintf(stderr, "Error opening %s:%s\n",
1223 opt_io, strerror(errno));
1232 static char buf[BUFSIZ];
1233 static int buflen = 0;
1236 int charsize; /* size of utf8 char in bytes */
1240 /* append read bytes to unprocessed bytes */
1241 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1242 die("Couldn't read from shell: %s\n", strerror(errno));
1244 /* process every complete utf8 char */
1247 while((charsize = utf8decode(ptr, &unicodep, buflen))) {
1248 utf8encode(unicodep, s, UTF_SIZ);
1254 /* keep any uncomplete utf8 char for the next call */
1255 memmove(buf, ptr, buflen);
1259 ttywrite(const char *s, size_t n) {
1260 if(xwrite(cmdfd, s, n) == -1)
1261 die("write error on tty: %s\n", strerror(errno));
1265 ttysend(char *s, size_t n) {
1267 if(IS_SET(MODE_ECHO))
1275 w.ws_row = term.row;
1276 w.ws_col = term.col;
1277 w.ws_xpixel = xw.tw;
1278 w.ws_ypixel = xw.th;
1279 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1280 fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
1284 tattrset(int attr) {
1287 for(i = 0; i < term.row-1; i++) {
1288 for(j = 0; j < term.col-1; j++) {
1289 if(term.line[i][j].mode & attr)
1298 tsetdirt(int top, int bot) {
1301 LIMIT(top, 0, term.row-1);
1302 LIMIT(bot, 0, term.row-1);
1304 for(i = top; i <= bot; i++)
1309 tsetdirtattr(int attr) {
1312 for(i = 0; i < term.row-1; i++) {
1313 for(j = 0; j < term.col-1; j++) {
1314 if(term.line[i][j].mode & attr) {
1324 tsetdirt(0, term.row-1);
1329 static TCursor c[2];
1330 bool alt = IS_SET(MODE_ALTSCREEN);
1332 if(mode == CURSOR_SAVE) {
1334 } else if(mode == CURSOR_LOAD) {
1336 tmoveto(c[alt].x, c[alt].y);
1344 term.c = (TCursor){{
1348 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1350 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1351 for(i = tabspaces; i < term.col; i += tabspaces)
1354 term.bot = term.row - 1;
1355 term.mode = MODE_WRAP;
1356 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1359 tclearregion(0, 0, term.col-1, term.row-1);
1361 tcursor(CURSOR_SAVE);
1365 tnew(int col, int row) {
1366 term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
1375 Line *tmp = term.line;
1377 term.line = term.alt;
1379 term.mode ^= MODE_ALTSCREEN;
1384 tscrolldown(int orig, int n) {
1388 LIMIT(n, 0, term.bot-orig+1);
1390 tsetdirt(orig, term.bot-n);
1391 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1393 for(i = term.bot; i >= orig+n; i--) {
1394 temp = term.line[i];
1395 term.line[i] = term.line[i-n];
1396 term.line[i-n] = temp;
1403 tscrollup(int orig, int n) {
1407 LIMIT(n, 0, term.bot-orig+1);
1409 tclearregion(0, orig, term.col-1, orig+n-1);
1410 tsetdirt(orig+n, term.bot);
1412 for(i = orig; i <= term.bot-n; i++) {
1413 temp = term.line[i];
1414 term.line[i] = term.line[i+n];
1415 term.line[i+n] = temp;
1418 selscroll(orig, -n);
1422 selscroll(int orig, int n) {
1426 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1427 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1431 if(sel.type == SEL_RECTANGULAR) {
1432 if(sel.ob.y < term.top)
1433 sel.ob.y = term.top;
1434 if(sel.oe.y > term.bot)
1435 sel.oe.y = term.bot;
1437 if(sel.ob.y < term.top) {
1438 sel.ob.y = term.top;
1441 if(sel.oe.y > term.bot) {
1442 sel.oe.y = term.bot;
1443 sel.oe.x = term.col;
1451 tnewline(int first_col) {
1455 tscrollup(term.top, 1);
1459 tmoveto(first_col ? 0 : term.c.x, y);
1464 char *p = csiescseq.buf, *np;
1473 csiescseq.buf[csiescseq.len] = '\0';
1474 while(p < csiescseq.buf+csiescseq.len) {
1476 v = strtol(p, &np, 10);
1479 if(v == LONG_MAX || v == LONG_MIN)
1481 csiescseq.arg[csiescseq.narg++] = v;
1483 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1487 csiescseq.mode = *p;
1490 /* for absolute user moves, when decom is set */
1492 tmoveato(int x, int y) {
1493 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1497 tmoveto(int x, int y) {
1500 if(term.c.state & CURSOR_ORIGIN) {
1505 maxy = term.row - 1;
1507 LIMIT(x, 0, term.col-1);
1508 LIMIT(y, miny, maxy);
1509 term.c.state &= ~CURSOR_WRAPNEXT;
1515 tsetchar(char *c, Glyph *attr, int x, int y) {
1516 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1517 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1518 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1519 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1520 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1521 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1522 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1523 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1524 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1528 * The table is proudly stolen from rxvt.
1530 if(term.trantbl[term.charset] == CS_GRAPHIC0) {
1531 if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
1532 c = vt100_0[c[0] - 0x41];
1536 if(term.line[y][x].mode & ATTR_WIDE) {
1537 if(x+1 < term.col) {
1538 term.line[y][x+1].c[0] = ' ';
1539 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1541 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1542 term.line[y][x-1].c[0] = ' ';
1543 term.line[y][x-1].mode &= ~ATTR_WIDE;
1547 term.line[y][x] = *attr;
1548 memcpy(term.line[y][x].c, c, UTF_SIZ);
1552 tclearregion(int x1, int y1, int x2, int y2) {
1557 temp = x1, x1 = x2, x2 = temp;
1559 temp = y1, y1 = y2, y2 = temp;
1561 LIMIT(x1, 0, term.col-1);
1562 LIMIT(x2, 0, term.col-1);
1563 LIMIT(y1, 0, term.row-1);
1564 LIMIT(y2, 0, term.row-1);
1566 for(y = y1; y <= y2; y++) {
1568 for(x = x1; x <= x2; x++) {
1569 gp = &term.line[y][x];
1572 gp->fg = term.c.attr.fg;
1573 gp->bg = term.c.attr.bg;
1575 memcpy(gp->c, " ", 2);
1581 tdeletechar(int n) {
1585 LIMIT(n, 0, term.col - term.c.x);
1589 size = term.col - src;
1590 line = term.line[term.c.y];
1592 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1593 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1597 tinsertblank(int n) {
1601 LIMIT(n, 0, term.col - term.c.x);
1605 size = term.col - dst;
1606 line = term.line[term.c.y];
1608 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1609 tclearregion(src, term.c.y, dst - 1, term.c.y);
1613 tinsertblankline(int n) {
1614 if(BETWEEN(term.c.y, term.top, term.bot))
1615 tscrolldown(term.c.y, n);
1619 tdeleteline(int n) {
1620 if(BETWEEN(term.c.y, term.top, term.bot))
1621 tscrollup(term.c.y, n);
1625 tdefcolor(int *attr, int *npar, int l) {
1629 switch (attr[*npar + 1]) {
1630 case 2: /* direct color in RGB space */
1631 if (*npar + 4 >= l) {
1633 "erresc(38): Incorrect number of parameters (%d)\n",
1637 r = attr[*npar + 2];
1638 g = attr[*npar + 3];
1639 b = attr[*npar + 4];
1641 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1642 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1645 idx = TRUECOLOR(r, g, b);
1647 case 5: /* indexed color */
1648 if (*npar + 2 >= l) {
1650 "erresc(38): Incorrect number of parameters (%d)\n",
1655 if(!BETWEEN(attr[*npar], 0, 255))
1656 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1660 case 0: /* implemented defined (only foreground) */
1661 case 1: /* transparent */
1662 case 3: /* direct color in CMY space */
1663 case 4: /* direct color in CMYK space */
1666 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1674 tsetattr(int *attr, int l) {
1678 for(i = 0; i < l; i++) {
1681 term.c.attr.mode &= ~(
1690 term.c.attr.fg = defaultfg;
1691 term.c.attr.bg = defaultbg;
1694 term.c.attr.mode |= ATTR_BOLD;
1697 term.c.attr.mode |= ATTR_FAINT;
1700 term.c.attr.mode |= ATTR_ITALIC;
1703 term.c.attr.mode |= ATTR_UNDERLINE;
1705 case 5: /* slow blink */
1707 case 6: /* rapid blink */
1708 term.c.attr.mode |= ATTR_BLINK;
1711 term.c.attr.mode |= ATTR_REVERSE;
1714 term.c.attr.mode |= ATTR_INVISIBLE;
1717 term.c.attr.mode |= ATTR_STRUCK;
1720 term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
1723 term.c.attr.mode &= ~ATTR_ITALIC;
1726 term.c.attr.mode &= ~ATTR_UNDERLINE;
1729 term.c.attr.mode &= ~ATTR_BLINK;
1732 term.c.attr.mode &= ~ATTR_REVERSE;
1735 term.c.attr.mode &= ~ATTR_INVISIBLE;
1738 term.c.attr.mode &= ~ATTR_STRUCK;
1741 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1742 term.c.attr.fg = idx;
1745 term.c.attr.fg = defaultfg;
1748 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1749 term.c.attr.bg = idx;
1752 term.c.attr.bg = defaultbg;
1755 if(BETWEEN(attr[i], 30, 37)) {
1756 term.c.attr.fg = attr[i] - 30;
1757 } else if(BETWEEN(attr[i], 40, 47)) {
1758 term.c.attr.bg = attr[i] - 40;
1759 } else if(BETWEEN(attr[i], 90, 97)) {
1760 term.c.attr.fg = attr[i] - 90 + 8;
1761 } else if(BETWEEN(attr[i], 100, 107)) {
1762 term.c.attr.bg = attr[i] - 100 + 8;
1765 "erresc(default): gfx attr %d unknown\n",
1766 attr[i]), csidump();
1774 tsetscroll(int t, int b) {
1777 LIMIT(t, 0, term.row-1);
1778 LIMIT(b, 0, term.row-1);
1789 tsetmode(bool priv, bool set, int *args, int narg) {
1793 for(lim = args + narg; args < lim; ++args) {
1796 case 1: /* DECCKM -- Cursor key */
1797 MODBIT(term.mode, set, MODE_APPCURSOR);
1799 case 5: /* DECSCNM -- Reverse video */
1801 MODBIT(term.mode, set, MODE_REVERSE);
1802 if(mode != term.mode)
1803 redraw(REDRAW_TIMEOUT);
1805 case 6: /* DECOM -- Origin */
1806 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1809 case 7: /* DECAWM -- Auto wrap */
1810 MODBIT(term.mode, set, MODE_WRAP);
1812 case 0: /* Error (IGNORED) */
1813 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1814 case 3: /* DECCOLM -- Column (IGNORED) */
1815 case 4: /* DECSCLM -- Scroll (IGNORED) */
1816 case 8: /* DECARM -- Auto repeat (IGNORED) */
1817 case 18: /* DECPFF -- Printer feed (IGNORED) */
1818 case 19: /* DECPEX -- Printer extent (IGNORED) */
1819 case 42: /* DECNRCM -- National characters (IGNORED) */
1820 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1822 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1823 MODBIT(term.mode, !set, MODE_HIDE);
1825 case 9: /* X10 mouse compatibility mode */
1826 xsetpointermotion(0);
1827 MODBIT(term.mode, 0, MODE_MOUSE);
1828 MODBIT(term.mode, set, MODE_MOUSEX10);
1830 case 1000: /* 1000: report button press */
1831 xsetpointermotion(0);
1832 MODBIT(term.mode, 0, MODE_MOUSE);
1833 MODBIT(term.mode, set, MODE_MOUSEBTN);
1835 case 1002: /* 1002: report motion on button press */
1836 xsetpointermotion(0);
1837 MODBIT(term.mode, 0, MODE_MOUSE);
1838 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1840 case 1003: /* 1003: enable all mouse motions */
1841 xsetpointermotion(set);
1842 MODBIT(term.mode, 0, MODE_MOUSE);
1843 MODBIT(term.mode, set, MODE_MOUSEMANY);
1845 case 1004: /* 1004: send focus events to tty */
1846 MODBIT(term.mode, set, MODE_FOCUS);
1848 case 1006: /* 1006: extended reporting mode */
1849 MODBIT(term.mode, set, MODE_MOUSESGR);
1852 MODBIT(term.mode, set, MODE_8BIT);
1854 case 1049: /* swap screen & set/restore cursor as xterm */
1855 if (!allowaltscreen)
1857 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1859 case 47: /* swap screen */
1861 if (!allowaltscreen)
1863 alt = IS_SET(MODE_ALTSCREEN);
1865 tclearregion(0, 0, term.col-1,
1868 if(set ^ alt) /* set is always 1 or 0 */
1874 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1876 case 2004: /* 2004: bracketed paste mode */
1877 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1879 /* Not implemented mouse modes. See comments there. */
1880 case 1001: /* mouse highlight mode; can hang the
1881 terminal by design when implemented. */
1882 case 1005: /* UTF-8 mouse mode; will confuse
1883 applications not supporting UTF-8
1885 case 1015: /* urxvt mangled mouse mode; incompatible
1886 and can be mistaken for other control
1890 "erresc: unknown private set/reset mode %d\n",
1896 case 0: /* Error (IGNORED) */
1898 case 2: /* KAM -- keyboard action */
1899 MODBIT(term.mode, set, MODE_KBDLOCK);
1901 case 4: /* IRM -- Insertion-replacement */
1902 MODBIT(term.mode, set, MODE_INSERT);
1904 case 12: /* SRM -- Send/Receive */
1905 MODBIT(term.mode, !set, MODE_ECHO);
1907 case 20: /* LNM -- Linefeed/new line */
1908 MODBIT(term.mode, set, MODE_CRLF);
1912 "erresc: unknown set/reset mode %d\n",
1925 switch(csiescseq.mode) {
1928 fprintf(stderr, "erresc: unknown csi ");
1932 case '@': /* ICH -- Insert <n> blank char */
1933 DEFAULT(csiescseq.arg[0], 1);
1934 tinsertblank(csiescseq.arg[0]);
1936 case 'A': /* CUU -- Cursor <n> Up */
1937 DEFAULT(csiescseq.arg[0], 1);
1938 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1940 case 'B': /* CUD -- Cursor <n> Down */
1941 case 'e': /* VPR --Cursor <n> Down */
1942 DEFAULT(csiescseq.arg[0], 1);
1943 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1945 case 'i': /* MC -- Media Copy */
1946 switch(csiescseq.arg[0]) {
1951 tdumpline(term.c.y);
1957 term.mode &= ~MODE_PRINT;
1960 term.mode |= MODE_PRINT;
1964 case 'c': /* DA -- Device Attributes */
1965 if(csiescseq.arg[0] == 0)
1966 ttywrite(vtiden, sizeof(vtiden) - 1);
1968 case 'C': /* CUF -- Cursor <n> Forward */
1969 case 'a': /* HPR -- Cursor <n> Forward */
1970 DEFAULT(csiescseq.arg[0], 1);
1971 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1973 case 'D': /* CUB -- Cursor <n> Backward */
1974 DEFAULT(csiescseq.arg[0], 1);
1975 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1977 case 'E': /* CNL -- Cursor <n> Down and first col */
1978 DEFAULT(csiescseq.arg[0], 1);
1979 tmoveto(0, term.c.y+csiescseq.arg[0]);
1981 case 'F': /* CPL -- Cursor <n> Up and first col */
1982 DEFAULT(csiescseq.arg[0], 1);
1983 tmoveto(0, term.c.y-csiescseq.arg[0]);
1985 case 'g': /* TBC -- Tabulation clear */
1986 switch(csiescseq.arg[0]) {
1987 case 0: /* clear current tab stop */
1988 term.tabs[term.c.x] = 0;
1990 case 3: /* clear all the tabs */
1991 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1997 case 'G': /* CHA -- Move to <col> */
1999 DEFAULT(csiescseq.arg[0], 1);
2000 tmoveto(csiescseq.arg[0]-1, term.c.y);
2002 case 'H': /* CUP -- Move to <row> <col> */
2004 DEFAULT(csiescseq.arg[0], 1);
2005 DEFAULT(csiescseq.arg[1], 1);
2006 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
2008 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
2009 DEFAULT(csiescseq.arg[0], 1);
2010 tputtab(csiescseq.arg[0]);
2012 case 'J': /* ED -- Clear screen */
2014 switch(csiescseq.arg[0]) {
2016 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2017 if(term.c.y < term.row-1) {
2018 tclearregion(0, term.c.y+1, term.col-1,
2024 tclearregion(0, 0, term.col-1, term.c.y-1);
2025 tclearregion(0, term.c.y, term.c.x, term.c.y);
2028 tclearregion(0, 0, term.col-1, term.row-1);
2034 case 'K': /* EL -- Clear line */
2035 switch(csiescseq.arg[0]) {
2037 tclearregion(term.c.x, term.c.y, term.col-1,
2041 tclearregion(0, term.c.y, term.c.x, term.c.y);
2044 tclearregion(0, term.c.y, term.col-1, term.c.y);
2048 case 'S': /* SU -- Scroll <n> line up */
2049 DEFAULT(csiescseq.arg[0], 1);
2050 tscrollup(term.top, csiescseq.arg[0]);
2052 case 'T': /* SD -- Scroll <n> line down */
2053 DEFAULT(csiescseq.arg[0], 1);
2054 tscrolldown(term.top, csiescseq.arg[0]);
2056 case 'L': /* IL -- Insert <n> blank lines */
2057 DEFAULT(csiescseq.arg[0], 1);
2058 tinsertblankline(csiescseq.arg[0]);
2060 case 'l': /* RM -- Reset Mode */
2061 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2063 case 'M': /* DL -- Delete <n> lines */
2064 DEFAULT(csiescseq.arg[0], 1);
2065 tdeleteline(csiescseq.arg[0]);
2067 case 'X': /* ECH -- Erase <n> char */
2068 DEFAULT(csiescseq.arg[0], 1);
2069 tclearregion(term.c.x, term.c.y,
2070 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2072 case 'P': /* DCH -- Delete <n> char */
2073 DEFAULT(csiescseq.arg[0], 1);
2074 tdeletechar(csiescseq.arg[0]);
2076 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2077 DEFAULT(csiescseq.arg[0], 1);
2078 tputtab(-csiescseq.arg[0]);
2080 case 'd': /* VPA -- Move to <row> */
2081 DEFAULT(csiescseq.arg[0], 1);
2082 tmoveato(term.c.x, csiescseq.arg[0]-1);
2084 case 'h': /* SM -- Set terminal mode */
2085 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2087 case 'm': /* SGR -- Terminal attribute (color) */
2088 tsetattr(csiescseq.arg, csiescseq.narg);
2090 case 'n': /* DSR – Device Status Report (cursor position) */
2091 if (csiescseq.arg[0] == 6) {
2092 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2093 term.c.y+1, term.c.x+1);
2097 case 'r': /* DECSTBM -- Set Scrolling Region */
2098 if(csiescseq.priv) {
2101 DEFAULT(csiescseq.arg[0], 1);
2102 DEFAULT(csiescseq.arg[1], term.row);
2103 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2107 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2108 tcursor(CURSOR_SAVE);
2110 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2111 tcursor(CURSOR_LOAD);
2122 for(i = 0; i < csiescseq.len; i++) {
2123 c = csiescseq.buf[i] & 0xff;
2126 } else if(c == '\n') {
2128 } else if(c == '\r') {
2130 } else if(c == 0x1b) {
2133 printf("(%02x)", c);
2141 memset(&csiescseq, 0, sizeof(csiescseq));
2149 term.esc &= ~(ESC_STR_END|ESC_STR);
2151 narg = strescseq.narg;
2152 par = atoi(strescseq.args[0]);
2154 switch(strescseq.type) {
2155 case ']': /* OSC -- Operating System Command */
2161 xsettitle(strescseq.args[1]);
2163 case 4: /* color set */
2166 p = strescseq.args[2];
2168 case 104: /* color reset, here p = NULL */
2169 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2170 if(xsetcolorname(j, p)) {
2171 fprintf(stderr, "erresc: invalid color %s\n", p);
2174 * TODO if defaultbg color is changed, borders
2182 case 'k': /* old title set compatibility */
2183 xsettitle(strescseq.args[0]);
2185 case 'P': /* DCS -- Device Control String */
2186 case '_': /* APC -- Application Program Command */
2187 case '^': /* PM -- Privacy Message */
2191 fprintf(stderr, "erresc: unknown str ");
2197 char *p = strescseq.buf;
2200 strescseq.buf[strescseq.len] = '\0';
2201 while(p && strescseq.narg < STR_ARG_SIZ)
2202 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2210 printf("ESC%c", strescseq.type);
2211 for(i = 0; i < strescseq.len; i++) {
2212 c = strescseq.buf[i] & 0xff;
2215 } else if(isprint(c)) {
2217 } else if(c == '\n') {
2219 } else if(c == '\r') {
2221 } else if(c == 0x1b) {
2224 printf("(%02x)", c);
2232 memset(&strescseq, 0, sizeof(strescseq));
2236 tprinter(char *s, size_t len) {
2237 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2238 fprintf(stderr, "Error writing in %s:%s\n",
2239 opt_io, strerror(errno));
2246 toggleprinter(const Arg *arg) {
2247 term.mode ^= MODE_PRINT;
2251 printscreen(const Arg *arg) {
2256 printsel(const Arg *arg) {
2264 if((ptr = getsel())) {
2265 tprinter(ptr, strlen(ptr));
2274 bp = &term.line[n][0];
2275 end = &bp[MIN(tlinelen(n), term.col) - 1];
2276 if(bp != end || bp->c[0] != ' ') {
2277 for( ;bp <= end; ++bp)
2278 tprinter(bp->c, utf8len(bp->c));
2287 for(i = 0; i < term.row; ++i)
2296 while(x < term.col && n--)
2297 for(++x; x < term.col && !term.tabs[x]; ++x)
2301 for(--x; x > 0 && !term.tabs[x]; --x)
2304 tmoveto(x, term.c.y);
2308 techo(char *buf, int len) {
2309 for(; len > 0; buf++, len--) {
2312 if(ISCONTROL((uchar) c)) { /* control code */
2317 } else if(c != '\n' && c != '\r' && c != '\t') {
2331 tdeftran(char ascii) {
2332 static char cs[] = "0B";
2333 static int vcs[] = {CS_GRAPHIC0, CS_USA};
2336 if((p = strchr(cs, ascii)) == NULL) {
2337 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2339 term.trantbl[term.icharset] = vcs[p - cs];
2344 tstrsequence(uchar c) {
2347 case 0x90: /* DCS -- Device Control String */
2350 case 0x9f: /* APC -- Application Program Command */
2353 case 0x9e: /* PM -- Privacy Message */
2356 case 0x9d: /* OSC -- Operating System Command */
2363 term.esc |= ESC_STR;
2368 tcontrolcode(uchar ascii) {
2369 static char question[UTF_SIZ] = "?";
2376 tmoveto(term.c.x-1, term.c.y);
2379 tmoveto(0, term.c.y);
2384 /* go to first col if the mode is set */
2385 tnewline(IS_SET(MODE_CRLF));
2387 case '\a': /* BEL */
2388 if(term.esc & ESC_STR_END) {
2389 /* backwards compatibility to xterm */
2392 if(!(xw.state & WIN_FOCUSED))
2395 XBell(xw.dpy, bellvolume);
2398 case '\033': /* ESC */
2400 term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
2401 term.esc |= ESC_START;
2403 case '\016': /* SO */
2406 case '\017': /* SI */
2409 case '\032': /* SUB */
2410 tsetchar(question, &term.c.attr, term.c.x, term.c.y);
2411 case '\030': /* CAN */
2414 case '\005': /* ENQ (IGNORED) */
2415 case '\000': /* NUL (IGNORED) */
2416 case '\021': /* XON (IGNORED) */
2417 case '\023': /* XOFF (IGNORED) */
2418 case 0177: /* DEL (IGNORED) */
2420 case 0x84: /* TODO: IND */
2422 case 0x85: /* NEL -- Next line */
2423 tnewline(1); /* always go to first col */
2425 case 0x88: /* HTS -- Horizontal tab stop */
2426 term.tabs[term.c.x] = 1;
2428 case 0x8d: /* TODO: RI */
2429 case 0x8e: /* TODO: SS2 */
2430 case 0x8f: /* TODO: SS3 */
2431 case 0x98: /* TODO: SOS */
2433 case 0x9a: /* DECID -- Identify Terminal */
2434 ttywrite(vtiden, sizeof(vtiden) - 1);
2436 case 0x9b: /* TODO: CSI */
2437 case 0x9c: /* TODO: ST */
2439 case 0x90: /* DCS -- Device Control String */
2440 case 0x9f: /* APC -- Application Program Command */
2441 case 0x9e: /* PM -- Privacy Message */
2442 case 0x9d: /* OSC -- Operating System Command */
2443 tstrsequence(ascii);
2446 /* only CAN, SUB, \a and C1 chars interrupt a sequence */
2447 term.esc &= ~(ESC_STR_END|ESC_STR);
2453 static char E[UTF_SIZ] = "E";
2456 if(c == '8') { /* DEC screen alignment test. */
2457 for(x = 0; x < term.col; ++x) {
2458 for(y = 0; y < term.row; ++y)
2459 tsetchar(E, &term.c.attr, x, y);
2465 tputc(char *c, int len) {
2474 unicodep = ascii = *c;
2476 utf8decode(c, &unicodep, UTF_SIZ);
2477 width = wcwidth(unicodep);
2478 control = ISCONTROLC1(unicodep);
2482 if(IS_SET(MODE_PRINT))
2484 control = ISCONTROL(unicodep);
2487 * STR sequence must be checked before anything else
2488 * because it uses all following characters until it
2489 * receives a ESC, a SUB, a ST or any other C1 control
2492 if(term.esc & ESC_STR) {
2494 (ascii == '\a' || ascii == 030 ||
2495 ascii == 032 || ascii == 033 ||
2496 ISCONTROLC1(unicodep))) {
2497 term.esc &= ~(ESC_START|ESC_STR);
2498 term.esc |= ESC_STR_END;
2499 } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2500 memmove(&strescseq.buf[strescseq.len], c, len);
2501 strescseq.len += len;
2505 * Here is a bug in terminals. If the user never sends
2506 * some code to stop the str or esc command, then st
2507 * will stop responding. But this is better than
2508 * silently failing with unknown characters. At least
2509 * then users will report back.
2511 * In the case users ever get fixed, here is the code:
2522 * Actions of control codes must be performed as soon they arrive
2523 * because they can be embedded inside a control sequence, and
2524 * they must not cause conflicts with sequences.
2527 tcontrolcode(ascii);
2529 * control codes are not shown ever
2532 } else if(term.esc & ESC_START) {
2533 if(term.esc & ESC_CSI) {
2534 csiescseq.buf[csiescseq.len++] = ascii;
2535 if(BETWEEN(ascii, 0x40, 0x7E)
2536 || csiescseq.len >= \
2537 sizeof(csiescseq.buf)-1) {
2543 } else if(term.esc & ESC_ALTCHARSET) {
2545 } else if(term.esc & ESC_TEST) {
2550 term.esc |= ESC_CSI;
2553 term.esc |= ESC_TEST;
2555 case 'P': /* DCS -- Device Control String */
2556 case '_': /* APC -- Application Program Command */
2557 case '^': /* PM -- Privacy Message */
2558 case ']': /* OSC -- Operating System Command */
2559 case 'k': /* old title set compatibility */
2560 tstrsequence(ascii);
2562 case '(': /* set primary charset G0 */
2563 case ')': /* set secondary charset G1 */
2564 case '*': /* set tertiary charset G2 */
2565 case '+': /* set quaternary charset G3 */
2566 term.icharset = ascii - '(';
2567 term.esc |= ESC_ALTCHARSET;
2569 case 'D': /* IND -- Linefeed */
2570 if(term.c.y == term.bot) {
2571 tscrollup(term.top, 1);
2573 tmoveto(term.c.x, term.c.y+1);
2576 case 'E': /* NEL -- Next line */
2577 tnewline(1); /* always go to first col */
2579 case 'H': /* HTS -- Horizontal tab stop */
2580 term.tabs[term.c.x] = 1;
2582 case 'M': /* RI -- Reverse index */
2583 if(term.c.y == term.top) {
2584 tscrolldown(term.top, 1);
2586 tmoveto(term.c.x, term.c.y-1);
2589 case 'Z': /* DECID -- Identify Terminal */
2590 ttywrite(vtiden, sizeof(vtiden) - 1);
2592 case 'c': /* RIS -- Reset to inital state */
2597 case '=': /* DECPAM -- Application keypad */
2598 term.mode |= MODE_APPKEYPAD;
2600 case '>': /* DECPNM -- Normal keypad */
2601 term.mode &= ~MODE_APPKEYPAD;
2603 case '7': /* DECSC -- Save Cursor */
2604 tcursor(CURSOR_SAVE);
2606 case '8': /* DECRC -- Restore Cursor */
2607 tcursor(CURSOR_LOAD);
2609 case '\\': /* ST -- String Terminator */
2610 if(term.esc & ESC_STR_END)
2614 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2615 (uchar) ascii, isprint(ascii)? ascii:'.');
2621 * All characters which form part of a sequence are not
2626 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2629 gp = &term.line[term.c.y][term.c.x];
2630 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2631 gp->mode |= ATTR_WRAP;
2635 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col)
2636 memmove(gp+1, gp, (term.col - term.c.x - 1) * sizeof(Glyph));
2638 if(term.c.x+width > term.col)
2641 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2644 gp->mode |= ATTR_WIDE;
2645 if(term.c.x+1 < term.col) {
2647 gp[1].mode = ATTR_WDUMMY;
2650 if(term.c.x+width < term.col) {
2651 tmoveto(term.c.x+width, term.c.y);
2653 term.c.state |= CURSOR_WRAPNEXT;
2658 tresize(int col, int row) {
2660 int minrow = MIN(row, term.row);
2661 int mincol = MIN(col, term.col);
2662 int slide = term.c.y - row + 1;
2667 if(col < 1 || row < 1) {
2669 "tresize: error resizing to %dx%d\n", col, row);
2673 /* free unneeded rows */
2677 * slide screen to keep cursor where we expect it -
2678 * tscrollup would work here, but we can optimize to
2679 * memmove because we're freeing the earlier lines
2681 for(/* i = 0 */; i < slide; i++) {
2685 memmove(term.line, term.line + slide, row * sizeof(Line));
2686 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2688 for(i += row; i < term.row; i++) {
2693 /* resize to new height */
2694 term.line = xrealloc(term.line, row * sizeof(Line));
2695 term.alt = xrealloc(term.alt, row * sizeof(Line));
2696 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2697 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2699 /* resize each row to new width, zero-pad if needed */
2700 for(i = 0; i < minrow; i++) {
2701 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2702 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2705 /* allocate any new rows */
2706 for(/* i == minrow */; i < row; i++) {
2707 term.line[i] = xmalloc(col * sizeof(Glyph));
2708 term.alt[i] = xmalloc(col * sizeof(Glyph));
2710 if(col > term.col) {
2711 bp = term.tabs + term.col;
2713 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2714 while(--bp > term.tabs && !*bp)
2716 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2719 /* update terminal size */
2722 /* reset scrolling region */
2723 tsetscroll(0, row-1);
2724 /* make use of the LIMIT in tmoveto */
2725 tmoveto(term.c.x, term.c.y);
2726 /* Clearing both screens (it makes dirty all lines) */
2730 if(mincol < col && 0 < minrow) {
2731 tclearregion(mincol, 0, col - 1, minrow - 1);
2733 if(0 < col && minrow < row) {
2734 tclearregion(0, minrow, col - 1, row - 1);
2737 tcursor(CURSOR_LOAD);
2738 } while(orig != term.line);
2743 xresize(int col, int row) {
2744 xw.tw = MAX(1, col * xw.cw);
2745 xw.th = MAX(1, row * xw.ch);
2747 XFreePixmap(xw.dpy, xw.buf);
2748 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2749 DefaultDepth(xw.dpy, xw.scr));
2750 XftDrawChange(xw.draw, xw.buf);
2751 xclear(0, 0, xw.w, xw.h);
2754 static inline ushort
2755 sixd_to_16bit(int x) {
2756 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2762 XRenderColor color = { .alpha = 0xffff };
2767 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2768 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2771 /* load colors [0-15] and [256-LEN(colorname)] (config.h) */
2772 for(i = 0; i < LEN(colorname); i++) {
2775 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2776 die("Could not allocate color '%s'\n", colorname[i]);
2780 /* load colors [16-231] ; same colors as xterm */
2781 for(i = 16; i < 6*6*6+16; i++) {
2782 color.red = sixd_to_16bit( ((i-16)/36)%6 );
2783 color.green = sixd_to_16bit( ((i-16)/6) %6 );
2784 color.blue = sixd_to_16bit( ((i-16)/1) %6 );
2785 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2786 die("Could not allocate color %d\n", i);
2789 /* load colors [232-255] ; grayscale */
2790 for(; i < 256; i++) {
2791 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
2792 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2793 die("Could not allocate color %d\n", i);
2799 xsetcolorname(int x, const char *name) {
2800 XRenderColor color = { .alpha = 0xffff };
2803 if(!BETWEEN(x, 0, LEN(colorname)))
2807 if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
2808 color.red = sixd_to_16bit( ((x-16)/36)%6 );
2809 color.green = sixd_to_16bit( ((x-16)/6) %6 );
2810 color.blue = sixd_to_16bit( ((x-16)/1) %6 );
2811 if(!XftColorAllocValue(xw.dpy, xw.vis,
2812 xw.cmap, &color, &ncolor)) {
2816 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2819 } else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
2820 color.red = color.green = color.blue = \
2821 0x0808 + 0x0a0a * (x - (16 + 216));
2822 if(!XftColorAllocValue(xw.dpy, xw.vis,
2823 xw.cmap, &color, &ncolor)) {
2827 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2830 } else { /* system colors */
2831 name = colorname[x];
2834 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
2837 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2843 xtermclear(int col1, int row1, int col2, int row2) {
2844 XftDrawRect(xw.draw,
2845 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2846 borderpx + col1 * xw.cw,
2847 borderpx + row1 * xw.ch,
2848 (col2-col1+1) * xw.cw,
2849 (row2-row1+1) * xw.ch);
2853 * Absolute coordinates.
2856 xclear(int x1, int y1, int x2, int y2) {
2857 XftDrawRect(xw.draw,
2858 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2859 x1, y1, x2-x1, y2-y1);
2864 XClassHint class = {opt_class ? opt_class : termname, termname};
2865 XWMHints wm = {.flags = InputHint, .input = 1};
2866 XSizeHints *sizeh = NULL;
2868 sizeh = XAllocSizeHints();
2870 sizeh->flags = PSize | PResizeInc | PBaseSize;
2871 sizeh->height = xw.h;
2872 sizeh->width = xw.w;
2873 sizeh->height_inc = xw.ch;
2874 sizeh->width_inc = xw.cw;
2875 sizeh->base_height = 2 * borderpx;
2876 sizeh->base_width = 2 * borderpx;
2877 if(xw.isfixed == True) {
2878 sizeh->flags |= PMaxSize | PMinSize;
2879 sizeh->min_width = sizeh->max_width = xw.w;
2880 sizeh->min_height = sizeh->max_height = xw.h;
2882 if(xw.gm & (XValue|YValue)) {
2883 sizeh->flags |= USPosition | PWinGravity;
2886 sizeh->win_gravity = xgeommasktogravity(xw.gm);
2889 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2895 xgeommasktogravity(int mask) {
2896 switch(mask & (XNegative|YNegative)) {
2898 return NorthWestGravity;
2900 return NorthEastGravity;
2902 return SouthWestGravity;
2904 return SouthEastGravity;
2908 xloadfont(Font *f, FcPattern *pattern) {
2912 match = FcFontMatch(NULL, pattern, &result);
2916 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2917 FcPatternDestroy(match);
2922 f->pattern = FcPatternDuplicate(pattern);
2924 f->ascent = f->match->ascent;
2925 f->descent = f->match->descent;
2927 f->rbearing = f->match->max_advance_width;
2929 f->height = f->ascent + f->descent;
2930 f->width = f->lbearing + f->rbearing;
2936 xloadfonts(char *fontstr, double fontsize) {
2938 FcResult r_sz, r_psz;
2942 if(fontstr[0] == '-') {
2943 pattern = XftXlfdParse(fontstr, False, False);
2945 pattern = FcNameParse((FcChar8 *)fontstr);
2949 die("st: can't open font %s\n", fontstr);
2952 FcPatternDel(pattern, FC_PIXEL_SIZE);
2953 FcPatternDel(pattern, FC_SIZE);
2954 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2955 usedfontsize = fontsize;
2957 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2958 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2959 if(r_psz == FcResultMatch) {
2960 usedfontsize = fontval;
2961 } else if(r_sz == FcResultMatch) {
2965 * Default font size is 12, if none given. This is to
2966 * have a known usedfontsize value.
2968 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2973 FcConfigSubstitute(0, pattern, FcMatchPattern);
2974 FcDefaultSubstitute(pattern);
2976 if(xloadfont(&dc.font, pattern))
2977 die("st: can't open font %s\n", fontstr);
2979 if(usedfontsize < 0) {
2980 FcPatternGetDouble(dc.font.match->pattern,
2981 FC_PIXEL_SIZE, 0, &fontval);
2982 usedfontsize = fontval;
2985 /* Setting character width and height. */
2986 xw.cw = ceilf(dc.font.width * cwscale);
2987 xw.ch = ceilf(dc.font.height * chscale);
2989 FcPatternDel(pattern, FC_SLANT);
2990 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2991 if(xloadfont(&dc.ifont, pattern))
2992 die("st: can't open font %s\n", fontstr);
2994 FcPatternDel(pattern, FC_WEIGHT);
2995 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2996 if(xloadfont(&dc.ibfont, pattern))
2997 die("st: can't open font %s\n", fontstr);
2999 FcPatternDel(pattern, FC_SLANT);
3000 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
3001 if(xloadfont(&dc.bfont, pattern))
3002 die("st: can't open font %s\n", fontstr);
3004 FcPatternDestroy(pattern);
3008 xloadfontset(Font *f) {
3011 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
3017 xunloadfont(Font *f) {
3018 XftFontClose(xw.dpy, f->match);
3019 FcPatternDestroy(f->pattern);
3021 FcFontSetDestroy(f->set);
3025 xunloadfonts(void) {
3026 /* Free the loaded fonts in the font cache. */
3028 XftFontClose(xw.dpy, frc[--frclen].font);
3030 xunloadfont(&dc.font);
3031 xunloadfont(&dc.bfont);
3032 xunloadfont(&dc.ifont);
3033 xunloadfont(&dc.ibfont);
3037 xzoom(const Arg *arg) {
3039 xloadfonts(usedfont, usedfontsize + arg->i);
3050 pid_t thispid = getpid();
3052 if(!(xw.dpy = XOpenDisplay(NULL)))
3053 die("Can't open display\n");
3054 xw.scr = XDefaultScreen(xw.dpy);
3055 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3059 die("Could not init fontconfig.\n");
3061 usedfont = (opt_font == NULL)? font : opt_font;
3062 xloadfonts(usedfont, 0);
3065 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3068 /* adjust fixed window geometry */
3069 xw.w = 2 * borderpx + term.col * xw.cw;
3070 xw.h = 2 * borderpx + term.row * xw.ch;
3071 if(xw.gm & XNegative)
3072 xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
3073 if(xw.gm & YNegative)
3074 xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
3077 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3078 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3079 xw.attrs.bit_gravity = NorthWestGravity;
3080 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3081 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3082 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3083 xw.attrs.colormap = xw.cmap;
3085 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3086 XRootWindow(xw.dpy, xw.scr);
3087 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
3088 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3089 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3090 | CWEventMask | CWColormap, &xw.attrs);
3092 memset(&gcvalues, 0, sizeof(gcvalues));
3093 gcvalues.graphics_exposures = False;
3094 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3096 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3097 DefaultDepth(xw.dpy, xw.scr));
3098 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3099 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3101 /* Xft rendering context */
3102 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3105 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3106 XSetLocaleModifiers("@im=local");
3107 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3108 XSetLocaleModifiers("@im=");
3109 if((xw.xim = XOpenIM(xw.dpy,
3110 NULL, NULL, NULL)) == NULL) {
3111 die("XOpenIM failed. Could not open input"
3116 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3117 | XIMStatusNothing, XNClientWindow, xw.win,
3118 XNFocusWindow, xw.win, NULL);
3120 die("XCreateIC failed. Could not obtain input method.\n");
3122 /* white cursor, black outline */
3123 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3124 XDefineCursor(xw.dpy, xw.win, cursor);
3125 XRecolorCursor(xw.dpy, cursor,
3126 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3127 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3129 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3130 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3131 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3132 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3134 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3135 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3136 PropModeReplace, (uchar *)&thispid, 1);
3139 XMapWindow(xw.dpy, xw.win);
3141 XSync(xw.dpy, False);
3145 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3146 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3147 width = charlen * xw.cw, xp, i;
3149 int u8fl, u8fblen, u8cblen, doesexist;
3152 Font *font = &dc.font;
3154 FcPattern *fcpattern, *fontpattern;
3155 FcFontSet *fcsets[] = { NULL };
3156 FcCharSet *fccharset;
3157 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3158 XRenderColor colfg, colbg;
3162 frcflags = FRC_NORMAL;
3164 if(base.mode & ATTR_ITALIC) {
3165 if(base.fg == defaultfg)
3166 base.fg = defaultitalic;
3168 frcflags = FRC_ITALIC;
3169 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3170 if(base.fg == defaultfg)
3171 base.fg = defaultitalic;
3173 frcflags = FRC_ITALICBOLD;
3174 } else if(base.mode & ATTR_UNDERLINE) {
3175 if(base.fg == defaultfg)
3176 base.fg = defaultunderline;
3179 if(IS_TRUECOL(base.fg)) {
3180 colfg.alpha = 0xffff;
3181 colfg.red = TRUERED(base.fg);
3182 colfg.green = TRUEGREEN(base.fg);
3183 colfg.blue = TRUEBLUE(base.fg);
3184 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3187 fg = &dc.col[base.fg];
3190 if(IS_TRUECOL(base.bg)) {
3191 colbg.alpha = 0xffff;
3192 colbg.green = TRUEGREEN(base.bg);
3193 colbg.red = TRUERED(base.bg);
3194 colbg.blue = TRUEBLUE(base.bg);
3195 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3198 bg = &dc.col[base.bg];
3201 if(base.mode & ATTR_BOLD) {
3203 * change basic system colors [0-7]
3204 * to bright system colors [8-15]
3206 if(BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT))
3207 fg = &dc.col[base.fg + 8];
3209 if(base.mode & ATTR_ITALIC) {
3211 frcflags = FRC_ITALICBOLD;
3214 frcflags = FRC_BOLD;
3218 if(IS_SET(MODE_REVERSE)) {
3219 if(fg == &dc.col[defaultfg]) {
3220 fg = &dc.col[defaultbg];
3222 colfg.red = ~fg->color.red;
3223 colfg.green = ~fg->color.green;
3224 colfg.blue = ~fg->color.blue;
3225 colfg.alpha = fg->color.alpha;
3226 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3231 if(bg == &dc.col[defaultbg]) {
3232 bg = &dc.col[defaultfg];
3234 colbg.red = ~bg->color.red;
3235 colbg.green = ~bg->color.green;
3236 colbg.blue = ~bg->color.blue;
3237 colbg.alpha = bg->color.alpha;
3238 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3244 if(base.mode & ATTR_REVERSE) {
3250 if(base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) {
3251 colfg.red = fg->color.red / 2;
3252 colfg.green = fg->color.green / 2;
3253 colfg.blue = fg->color.blue / 2;
3254 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
3258 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3261 if(base.mode & ATTR_INVISIBLE)
3264 /* Intelligent cleaning up of the borders. */
3266 xclear(0, (y == 0)? 0 : winy, borderpx,
3267 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3269 if(x + charlen >= term.col) {
3270 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3271 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3274 xclear(winx, 0, winx + width, borderpx);
3276 xclear(winx, winy + xw.ch, winx + width, xw.h);
3278 /* Clean up the region we want to draw to. */
3279 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3281 /* Set the clip region because Xft is sometimes dirty. */
3286 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3288 for(xp = winx; bytelen > 0;) {
3290 * Search for the range in the to be printed string of glyphs
3291 * that are in the main font. Then print that range. If
3292 * some glyph is found that is not in the font, do the
3298 oneatatime = font->width != xw.cw;
3301 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3305 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3309 if(!oneatatime && bytelen > 0)
3314 XftDrawStringUtf8(xw.draw, fg,
3316 winy + font->ascent,
3329 /* Search the font cache. */
3330 for(i = 0; i < frclen; i++) {
3331 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3332 && frc[i].flags == frcflags) {
3337 /* Nothing was found. */
3341 fcsets[0] = font->set;
3344 * Nothing was found in the cache. Now use
3345 * some dozen of Fontconfig calls to get the
3346 * font for one single character.
3348 * Xft and fontconfig are design failures.
3350 fcpattern = FcPatternDuplicate(font->pattern);
3351 fccharset = FcCharSetCreate();
3353 FcCharSetAddChar(fccharset, unicodep);
3354 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3356 FcPatternAddBool(fcpattern, FC_SCALABLE,
3359 FcConfigSubstitute(0, fcpattern,
3361 FcDefaultSubstitute(fcpattern);
3363 fontpattern = FcFontSetMatch(0, fcsets,
3364 FcTrue, fcpattern, &fcres);
3367 * Overwrite or create the new cache entry.
3369 if(frclen >= LEN(frc)) {
3370 frclen = LEN(frc) - 1;
3371 XftFontClose(xw.dpy, frc[frclen].font);
3374 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3376 frc[frclen].flags = frcflags;
3381 FcPatternDestroy(fcpattern);
3382 FcCharSetDestroy(fccharset);
3385 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3386 xp, winy + frc[i].font->ascent,
3387 (FcChar8 *)u8c, u8cblen);
3389 xp += xw.cw * wcwidth(unicodep);
3393 * This is how the loop above actually should be. Why does the
3394 * application have to care about font details?
3396 * I have to repeat: Xft and Fontconfig are design failures.
3399 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3400 winy + font->ascent, (FcChar8 *)s, bytelen);
3403 if(base.mode & ATTR_UNDERLINE) {
3404 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3408 if(base.mode & ATTR_STRUCK) {
3409 XftDrawRect(xw.draw, fg, winx, winy + 2 * font->ascent / 3,
3413 /* Reset clip to none. */
3414 XftDrawSetClip(xw.draw, 0);
3419 static int oldx = 0, oldy = 0;
3420 int sl, width, curx;
3421 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3423 LIMIT(oldx, 0, term.col-1);
3424 LIMIT(oldy, 0, term.row-1);
3428 /* adjust position if in dummy */
3429 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3431 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3434 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3436 /* remove the old cursor */
3437 sl = utf8len(term.line[oldy][oldx].c);
3438 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3439 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3442 /* draw the new one */
3443 if(!(IS_SET(MODE_HIDE))) {
3444 if(xw.state & WIN_FOCUSED) {
3445 if(IS_SET(MODE_REVERSE)) {
3446 g.mode |= ATTR_REVERSE;
3452 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3454 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3456 XftDrawRect(xw.draw, &dc.col[defaultcs],
3457 borderpx + curx * xw.cw,
3458 borderpx + term.c.y * xw.ch,
3460 XftDrawRect(xw.draw, &dc.col[defaultcs],
3461 borderpx + curx * xw.cw,
3462 borderpx + term.c.y * xw.ch,
3464 XftDrawRect(xw.draw, &dc.col[defaultcs],
3465 borderpx + (curx + 1) * xw.cw - 1,
3466 borderpx + term.c.y * xw.ch,
3468 XftDrawRect(xw.draw, &dc.col[defaultcs],
3469 borderpx + curx * xw.cw,
3470 borderpx + (term.c.y + 1) * xw.ch - 1,
3473 oldx = curx, oldy = term.c.y;
3479 xsettitle(char *p) {
3482 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3484 XSetWMName(xw.dpy, xw.win, &prop);
3485 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3491 xsettitle(opt_title ? opt_title : "st");
3495 redraw(int timeout) {
3496 struct timespec tv = {0, timeout * 1000};
3502 nanosleep(&tv, NULL);
3503 XSync(xw.dpy, False); /* necessary for a good tput flash */
3509 drawregion(0, 0, term.col, term.row);
3510 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3512 XSetForeground(xw.dpy, dc.gc,
3513 dc.col[IS_SET(MODE_REVERSE)?
3514 defaultfg : defaultbg].pixel);
3518 drawregion(int x1, int y1, int x2, int y2) {
3519 int ic, ib, x, y, ox, sl;
3521 char buf[DRAW_BUF_SIZ];
3522 bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
3525 if(!(xw.state & WIN_VISIBLE))
3528 for(y = y1; y < y2; y++) {
3532 xtermclear(0, y, term.col, y);
3534 base = term.line[y][0];
3536 for(x = x1; x < x2; x++) {
3537 new = term.line[y][x];
3538 if(new.mode == ATTR_WDUMMY)
3540 if(ena_sel && selected(x, y))
3541 new.mode ^= ATTR_REVERSE;
3542 if(ib > 0 && (ATTRCMP(base, new)
3543 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3544 xdraws(buf, base, ox, y, ic, ib);
3552 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3553 memcpy(buf+ib, new.c, sl);
3555 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3558 xdraws(buf, base, ox, y, ic, ib);
3564 expose(XEvent *ev) {
3565 XExposeEvent *e = &ev->xexpose;
3567 if(xw.state & WIN_REDRAW) {
3569 xw.state &= ~WIN_REDRAW;
3575 visibility(XEvent *ev) {
3576 XVisibilityEvent *e = &ev->xvisibility;
3578 if(e->state == VisibilityFullyObscured) {
3579 xw.state &= ~WIN_VISIBLE;
3580 } else if(!(xw.state & WIN_VISIBLE)) {
3581 /* need a full redraw for next Expose, not just a buf copy */
3582 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3588 xw.state &= ~WIN_VISIBLE;
3592 xsetpointermotion(int set) {
3593 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3594 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3598 xseturgency(int add) {
3599 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3601 MODBIT(h->flags, add, XUrgencyHint);
3602 XSetWMHints(xw.dpy, xw.win, h);
3608 XFocusChangeEvent *e = &ev->xfocus;
3610 if(e->mode == NotifyGrab)
3613 if(ev->type == FocusIn) {
3614 XSetICFocus(xw.xic);
3615 xw.state |= WIN_FOCUSED;
3617 if(IS_SET(MODE_FOCUS))
3618 ttywrite("\033[I", 3);
3620 XUnsetICFocus(xw.xic);
3621 xw.state &= ~WIN_FOCUSED;
3622 if(IS_SET(MODE_FOCUS))
3623 ttywrite("\033[O", 3);
3628 match(uint mask, uint state) {
3629 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3633 numlock(const Arg *dummy) {
3638 kmap(KeySym k, uint state) {
3642 /* Check for mapped keys out of X11 function keys. */
3643 for(i = 0; i < LEN(mappedkeys); i++) {
3644 if(mappedkeys[i] == k)
3647 if(i == LEN(mappedkeys)) {
3648 if((k & 0xFFFF) < 0xFD00)
3652 for(kp = key; kp < key + LEN(key); kp++) {
3656 if(!match(kp->mask, state))
3659 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3661 if(term.numlock && kp->appkey == 2)
3664 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3667 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3677 kpress(XEvent *ev) {
3678 XKeyEvent *e = &ev->xkey;
3680 char buf[32], *customkey;
3686 if(IS_SET(MODE_KBDLOCK))
3689 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3691 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3692 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3693 bp->func(&(bp->arg));
3698 /* 2. custom keys from config.h */
3699 if((customkey = kmap(ksym, e->state))) {
3700 ttysend(customkey, strlen(customkey));
3704 /* 3. composed string from input method */
3707 if(len == 1 && e->state & Mod1Mask) {
3708 if(IS_SET(MODE_8BIT)) {
3711 len = utf8encode(c, buf, UTF_SIZ);
3724 cmessage(XEvent *e) {
3727 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3729 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3730 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3731 xw.state |= WIN_FOCUSED;
3733 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3734 xw.state &= ~WIN_FOCUSED;
3736 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3737 /* Send SIGHUP to shell */
3744 cresize(int width, int height) {
3752 col = (xw.w - 2 * borderpx) / xw.cw;
3753 row = (xw.h - 2 * borderpx) / xw.ch;
3762 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3765 cresize(e->xconfigure.width, e->xconfigure.height);
3771 int w = xw.w, h = xw.h;
3773 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3774 struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
3777 /* Waiting for window mapping */
3779 XNextEvent(xw.dpy, &ev);
3780 if(XFilterEvent(&ev, None))
3782 if(ev.type == ConfigureNotify) {
3783 w = ev.xconfigure.width;
3784 h = ev.xconfigure.height;
3785 } else if(ev.type == MapNotify) {
3793 clock_gettime(CLOCK_MONOTONIC, &last);
3796 for(xev = actionfps;;) {
3798 FD_SET(cmdfd, &rfd);
3801 if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
3804 die("select failed: %s\n", strerror(errno));
3806 if(FD_ISSET(cmdfd, &rfd)) {
3809 blinkset = tattrset(ATTR_BLINK);
3811 MODBIT(term.mode, 0, MODE_BLINK);
3815 if(FD_ISSET(xfd, &rfd))
3818 clock_gettime(CLOCK_MONOTONIC, &now);
3819 drawtimeout.tv_sec = 0;
3820 drawtimeout.tv_nsec = (1000/xfps) * 1E6;
3824 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3825 tsetdirtattr(ATTR_BLINK);
3826 term.mode ^= MODE_BLINK;
3830 deltatime = TIMEDIFF(now, last);
3831 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3838 while(XPending(xw.dpy)) {
3839 XNextEvent(xw.dpy, &ev);
3840 if(XFilterEvent(&ev, None))
3842 if(handler[ev.type])
3843 (handler[ev.type])(&ev);
3849 if(xev && !FD_ISSET(xfd, &rfd))
3851 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3853 if(TIMEDIFF(now, lastblink) \
3855 drawtimeout.tv_nsec = 1000;
3857 drawtimeout.tv_nsec = (1E6 * \
3872 die("%s " VERSION " (c) 2010-2014 st engineers\n" \
3873 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3874 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3878 main(int argc, char *argv[]) {
3880 uint cols = 80, rows = 24;
3887 allowaltscreen = false;
3890 opt_class = EARGF(usage());
3893 /* eat all remaining arguments */
3896 if(argv[1] != NULL && opt_title == NULL) {
3897 titles = xstrdup(argv[1]);
3898 opt_title = basename(titles);
3903 opt_font = EARGF(usage());
3906 xw.gm = XParseGeometry(EARGF(usage()),
3907 &xw.l, &xw.t, &cols, &rows);
3913 opt_io = EARGF(usage());
3916 opt_title = EARGF(usage());
3919 opt_embed = EARGF(usage());
3927 setlocale(LC_CTYPE, "");
3928 XSetLocaleModifiers("");
3929 tnew(cols? cols : 1, rows? rows : 1);