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) || (c) == '\177')
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 {
94 ATTR_UNDERLINE = 1 << 3,
96 ATTR_REVERSE = 1 << 5,
97 ATTR_INVISIBLE = 1 << 6,
101 ATTR_WDUMMY = 1 << 10,
104 enum cursor_movement {
117 MODE_INSERT = 1 << 1,
118 MODE_APPKEYPAD = 1 << 2,
119 MODE_ALTSCREEN = 1 << 3,
121 MODE_MOUSEBTN = 1 << 5,
122 MODE_MOUSEMOTION = 1 << 6,
123 MODE_REVERSE = 1 << 7,
124 MODE_KBDLOCK = 1 << 8,
127 MODE_APPCURSOR = 1 << 11,
128 MODE_MOUSESGR = 1 << 12,
130 MODE_BLINK = 1 << 14,
131 MODE_FBLINK = 1 << 15,
132 MODE_FOCUS = 1 << 16,
133 MODE_MOUSEX10 = 1 << 17,
134 MODE_MOUSEMANY = 1 << 18,
135 MODE_BRCKTPASTE = 1 << 19,
136 MODE_PRINT = 1 << 20,
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 int eschandle(uchar ascii);
360 static void strdump(void);
361 static void strhandle(void);
362 static void strparse(void);
363 static void strreset(void);
365 static int tattrset(int);
366 static void tprinter(char *, size_t);
367 static void tdumpsel(void);
368 static void tdumpline(int);
369 static void tdump(void);
370 static void tclearregion(int, int, int, int);
371 static void tcursor(int);
372 static void tdeletechar(int);
373 static void tdeleteline(int);
374 static void tinsertblank(int);
375 static void tinsertblankline(int);
376 static int tlinelen(int);
377 static void tmoveto(int, int);
378 static void tmoveato(int, int);
379 static void tnew(int, int);
380 static void tnewline(int);
381 static void tputtab(int);
382 static void tputc(char *, int);
383 static void treset(void);
384 static void tresize(int, int);
385 static void tscrollup(int, int);
386 static void tscrolldown(int, int);
387 static void tsetattr(int *, int);
388 static void tsetchar(char *, Glyph *, int, int);
389 static void tsetscroll(int, int);
390 static void tswapscreen(void);
391 static void tsetdirt(int, int);
392 static void tsetdirtattr(int);
393 static void tsetmode(bool, bool, int *, int);
394 static void tfulldirt(void);
395 static void techo(char *, int);
396 static void tcontrolcode(uchar );
397 static void tdectest(char );
398 static int32_t tdefcolor(int *, int *, int);
399 static void tdeftran(char);
400 static inline bool match(uint, uint);
401 static void ttynew(void);
402 static void ttyread(void);
403 static void ttyresize(void);
404 static void ttysend(char *, size_t);
405 static void ttywrite(const char *, size_t);
406 static void tstrsequence(uchar c);
408 static void xdraws(char *, Glyph, int, int, int, int);
409 static void xhints(void);
410 static void xclear(int, int, int, int);
411 static void xdrawcursor(void);
412 static void xinit(void);
413 static void xloadcols(void);
414 static int xsetcolorname(int, const char *);
415 static int xgeommasktogravity(int);
416 static int xloadfont(Font *, FcPattern *);
417 static void xloadfonts(char *, double);
418 static int xloadfontset(Font *);
419 static void xsettitle(char *);
420 static void xresettitle(void);
421 static void xsetpointermotion(int);
422 static void xseturgency(int);
423 static void xsetsel(char *);
424 static void xtermclear(int, int, int, int);
425 static void xunloadfont(Font *);
426 static void xunloadfonts(void);
427 static void xresize(int, int);
429 static void expose(XEvent *);
430 static void visibility(XEvent *);
431 static void unmap(XEvent *);
432 static char *kmap(KeySym, uint);
433 static void kpress(XEvent *);
434 static void cmessage(XEvent *);
435 static void cresize(int, int);
436 static void resize(XEvent *);
437 static void focus(XEvent *);
438 static void brelease(XEvent *);
439 static void bpress(XEvent *);
440 static void bmotion(XEvent *);
441 static void selnotify(XEvent *);
442 static void selclear(XEvent *);
443 static void selrequest(XEvent *);
445 static void selinit(void);
446 static void selnormalize(void);
447 static inline bool selected(int, int);
448 static char *getsel(void);
449 static void selcopy(void);
450 static void selscroll(int, int);
451 static void selsnap(int, int *, int *, int);
452 static void getbuttoninfo(XEvent *);
453 static void mousereport(XEvent *);
455 static size_t utf8decode(char *, long *, size_t);
456 static long utf8decodebyte(char, size_t *);
457 static size_t utf8encode(long, char *, size_t);
458 static char utf8encodebyte(long, size_t);
459 static size_t utf8len(char *);
460 static size_t utf8validate(long *, size_t);
462 static ssize_t xwrite(int, const char *, size_t);
463 static void *xmalloc(size_t);
464 static void *xrealloc(void *, size_t);
465 static char *xstrdup(char *);
467 static void usage(void);
469 static void (*handler[LASTEvent])(XEvent *) = {
471 [ClientMessage] = cmessage,
472 [ConfigureNotify] = resize,
473 [VisibilityNotify] = visibility,
474 [UnmapNotify] = unmap,
478 [MotionNotify] = bmotion,
479 [ButtonPress] = bpress,
480 [ButtonRelease] = brelease,
481 [SelectionClear] = selclear,
482 [SelectionNotify] = selnotify,
483 [SelectionRequest] = selrequest,
490 static CSIEscape csiescseq;
491 static STREscape strescseq;
494 static Selection sel;
495 static int iofd = STDOUT_FILENO;
496 static char **opt_cmd = NULL;
497 static char *opt_io = NULL;
498 static char *opt_title = NULL;
499 static char *opt_embed = NULL;
500 static char *opt_class = NULL;
501 static char *opt_font = NULL;
502 static int oldbutton = 3; /* button event on startup: 3 = release */
504 static char *usedfont = NULL;
505 static double usedfontsize = 0;
507 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
508 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
509 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
510 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
512 /* Font Ring Cache */
525 /* Fontcache is an array now. A new font will be appended to the array. */
526 static Fontcache frc[16];
527 static int frclen = 0;
530 xwrite(int fd, const char *s, size_t len) {
534 ssize_t r = write(fd, s, len);
544 xmalloc(size_t len) {
545 void *p = malloc(len);
548 die("Out of memory\n");
554 xrealloc(void *p, size_t len) {
555 if((p = realloc(p, len)) == NULL)
556 die("Out of memory\n");
563 if((s = strdup(s)) == NULL)
564 die("Out of memory\n");
570 utf8decode(char *c, long *u, size_t clen) {
571 size_t i, j, len, type;
577 udecoded = utf8decodebyte(c[0], &len);
578 if(!BETWEEN(len, 1, UTF_SIZ))
580 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
581 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
588 utf8validate(u, len);
593 utf8decodebyte(char c, size_t *i) {
594 for(*i = 0; *i < LEN(utfmask); ++(*i))
595 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
596 return (uchar)c & ~utfmask[*i];
601 utf8encode(long u, char *c, size_t clen) {
604 len = utf8validate(&u, 0);
607 for(i = len - 1; i != 0; --i) {
608 c[i] = utf8encodebyte(u, 0);
611 c[0] = utf8encodebyte(u, len);
616 utf8encodebyte(long u, size_t i) {
617 return utfbyte[i] | (u & ~utfmask[i]);
622 return utf8decode(c, &(long){0}, UTF_SIZ);
626 utf8validate(long *u, size_t i) {
627 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
629 for(i = 1; *u > utfmax[i]; ++i)
636 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
637 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
641 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
642 if(sel.xtarget == None)
643 sel.xtarget = XA_STRING;
651 return LIMIT(x, 0, term.col-1);
659 return LIMIT(y, 0, term.row-1);
662 static int tlinelen(int y) {
665 while (i > 0 && term.line[y][i - 1].c[0] == ' ')
675 if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
676 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
677 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
679 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
680 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
682 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
683 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
685 selsnap(sel.snap, &sel.nb.x, &sel.nb.y, -1);
686 selsnap(sel.snap, &sel.ne.x, &sel.ne.y, +1);
688 /* expand selection over line breaks */
689 if (sel.type == SEL_RECTANGULAR)
691 i = tlinelen(sel.nb.y);
694 if (tlinelen(sel.ne.y) <= sel.ne.x)
695 sel.ne.x = term.col - 1;
699 selected(int x, int y) {
700 if(sel.type == SEL_RECTANGULAR)
701 return BETWEEN(y, sel.nb.y, sel.ne.y)
702 && BETWEEN(x, sel.nb.x, sel.ne.x);
704 return BETWEEN(y, sel.nb.y, sel.ne.y)
705 && (y != sel.nb.y || x >= sel.nb.x)
706 && (y != sel.ne.y || x <= sel.ne.x);
710 selsnap(int mode, int *x, int *y, int direction) {
711 int newx, newy, xt, yt;
717 * Snap around if the word wraps around at the end or
718 * beginning of a line.
721 newx = *x + direction;
723 if(!BETWEEN(newx, 0, term.col - 1)) {
725 newx = (newx + term.col) % term.col;
726 if (!BETWEEN(newy, 0, term.row - 1))
732 yt = newy, xt = newx;
733 if(!(term.line[yt][xt].mode & ATTR_WRAP))
737 if (newx >= tlinelen(newy))
740 gp = &term.line[newy][newx];
741 if (!(gp->mode & ATTR_WDUMMY) && strchr(worddelimiters, gp->c[0]))
750 * Snap around if the the previous line or the current one
751 * has set ATTR_WRAP at its end. Then the whole next or
752 * previous line will be selected.
754 *x = (direction < 0) ? 0 : term.col - 1;
755 if(direction < 0 && *y > 0) {
756 for(; *y > 0; *y += direction) {
757 if(!(term.line[*y-1][term.col-1].mode
762 } else if(direction > 0 && *y < term.row-1) {
763 for(; *y < term.row; *y += direction) {
764 if(!(term.line[*y][term.col-1].mode
775 getbuttoninfo(XEvent *e) {
777 uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
779 sel.alt = IS_SET(MODE_ALTSCREEN);
781 sel.oe.x = x2col(e->xbutton.x);
782 sel.oe.y = y2row(e->xbutton.y);
785 sel.type = SEL_REGULAR;
786 for(type = 1; type < LEN(selmasks); ++type) {
787 if(match(selmasks[type], state)) {
795 mousereport(XEvent *e) {
796 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
797 button = e->xbutton.button, state = e->xbutton.state,
803 if(e->xbutton.type == MotionNotify) {
804 if(x == ox && y == oy)
806 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
808 /* MOUSE_MOTION: no reporting if no button is pressed */
809 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
812 button = oldbutton + 32;
816 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
823 if(e->xbutton.type == ButtonPress) {
827 } else if(e->xbutton.type == ButtonRelease) {
829 /* MODE_MOUSEX10: no button release reporting */
830 if(IS_SET(MODE_MOUSEX10))
832 if (button == 64 || button == 65)
837 if(!IS_SET(MODE_MOUSEX10)) {
838 button += (state & ShiftMask ? 4 : 0)
839 + (state & Mod4Mask ? 8 : 0)
840 + (state & ControlMask ? 16 : 0);
844 if(IS_SET(MODE_MOUSESGR)) {
845 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
847 e->xbutton.type == ButtonRelease ? 'm' : 'M');
848 } else if(x < 223 && y < 223) {
849 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
850 32+button, 32+x+1, 32+y+1);
863 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
868 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
869 if(e->xbutton.button == mk->b
870 && match(mk->mask, e->xbutton.state)) {
871 ttysend(mk->s, strlen(mk->s));
876 if(e->xbutton.button == Button1) {
877 clock_gettime(CLOCK_MONOTONIC, &now);
879 /* Clear previous selection, logically and visually. */
882 sel.type = SEL_REGULAR;
883 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
884 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
887 * If the user clicks below predefined timeouts specific
888 * snapping behaviour is exposed.
890 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
891 sel.snap = SNAP_LINE;
892 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
893 sel.snap = SNAP_WORD;
900 * Draw selection, unless it's regular and we don't want to
901 * make clicks visible
905 tsetdirt(sel.nb.y, sel.ne.y);
907 sel.tclick2 = sel.tclick1;
915 int y, bufsize, size, lastx, linelen;
921 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
922 ptr = str = xmalloc(bufsize);
924 /* append every set & selected glyph to the selection */
925 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
926 linelen = tlinelen(y);
928 if(sel.type == SEL_RECTANGULAR) {
929 gp = &term.line[y][sel.nb.x];
932 gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
933 lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
935 last = &term.line[y][MIN(lastx, linelen-1)];
937 for( ; gp <= last; ++gp) {
938 if(gp->mode & ATTR_WDUMMY)
941 size = utf8len(gp->c);
942 memcpy(ptr, gp->c, size);
947 * Copy and pasting of line endings is inconsistent
948 * in the inconsistent terminal and GUI world.
949 * The best solution seems like to produce '\n' when
950 * something is copied from st and convert '\n' to
951 * '\r', when something to be pasted is received by
953 * FIXME: Fix the computer world.
955 if(sel.ne.y > y || lastx >= linelen)
968 selnotify(XEvent *e) {
969 ulong nitems, ofs, rem;
971 uchar *data, *last, *repl;
976 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
977 False, AnyPropertyType, &type, &format,
978 &nitems, &rem, &data)) {
979 fprintf(stderr, "Clipboard allocation failed\n");
985 * Line endings are inconsistent in the terminal and GUI world
986 * copy and pasting. When receiving some selection data,
987 * replace all '\n' with '\r'.
988 * FIXME: Fix the computer world.
991 last = data + nitems * format / 8;
992 while((repl = memchr(repl, '\n', last - repl))) {
996 if(IS_SET(MODE_BRCKTPASTE))
997 ttywrite("\033[200~", 6);
998 ttysend((char *)data, nitems * format / 8);
999 if(IS_SET(MODE_BRCKTPASTE))
1000 ttywrite("\033[201~", 6);
1002 /* number of 32-bit chunks returned */
1003 ofs += nitems * format / 32;
1008 selpaste(const Arg *dummy) {
1009 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1010 xw.win, CurrentTime);
1014 clippaste(const Arg *dummy) {
1017 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1018 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
1019 xw.win, CurrentTime);
1023 selclear(XEvent *e) {
1027 tsetdirt(sel.nb.y, sel.ne.y);
1031 selrequest(XEvent *e) {
1032 XSelectionRequestEvent *xsre;
1033 XSelectionEvent xev;
1034 Atom xa_targets, string;
1036 xsre = (XSelectionRequestEvent *) e;
1037 xev.type = SelectionNotify;
1038 xev.requestor = xsre->requestor;
1039 xev.selection = xsre->selection;
1040 xev.target = xsre->target;
1041 xev.time = xsre->time;
1043 xev.property = None;
1045 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1046 if(xsre->target == xa_targets) {
1047 /* respond with the supported type */
1048 string = sel.xtarget;
1049 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1050 XA_ATOM, 32, PropModeReplace,
1051 (uchar *) &string, 1);
1052 xev.property = xsre->property;
1053 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
1054 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1055 xsre->target, 8, PropModeReplace,
1056 (uchar *) sel.clip, strlen(sel.clip));
1057 xev.property = xsre->property;
1060 /* all done, send a notification to the listener */
1061 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1062 fprintf(stderr, "Error sending SelectionNotify event\n");
1066 xsetsel(char *str) {
1067 /* register the selection for both the clipboard and the primary */
1073 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1075 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1076 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1080 brelease(XEvent *e) {
1081 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1086 if(e->xbutton.button == Button2) {
1088 } else if(e->xbutton.button == Button1) {
1096 tsetdirt(sel.nb.y, sel.ne.y);
1101 bmotion(XEvent *e) {
1102 int oldey, oldex, oldsby, oldsey;
1104 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1119 if(oldey != sel.oe.y || oldex != sel.oe.x)
1120 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1124 die(const char *errstr, ...) {
1127 va_start(ap, errstr);
1128 vfprintf(stderr, errstr, ap);
1136 const struct passwd *pw;
1137 char buf[sizeof(long) * 8 + 1];
1140 if((pw = getpwuid(getuid())) == NULL) {
1142 die("getpwuid:%s\n", strerror(errno));
1144 die("who are you?\n");
1146 unsetenv("COLUMNS");
1148 unsetenv("TERMCAP");
1150 sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
1151 snprintf(buf, sizeof(buf), "%lu", xw.win);
1153 setenv("LOGNAME", pw->pw_name, 1);
1154 setenv("USER", pw->pw_name, 1);
1155 setenv("SHELL", sh, 1);
1156 setenv("HOME", pw->pw_dir, 1);
1157 setenv("TERM", termname, 1);
1158 setenv("WINDOWID", buf, 1);
1160 signal(SIGCHLD, SIG_DFL);
1161 signal(SIGHUP, SIG_DFL);
1162 signal(SIGINT, SIG_DFL);
1163 signal(SIGQUIT, SIG_DFL);
1164 signal(SIGTERM, SIG_DFL);
1165 signal(SIGALRM, SIG_DFL);
1167 args = opt_cmd ? opt_cmd : (char *[]){sh, "-i", NULL};
1168 execvp(args[0], args);
1176 if(waitpid(pid, &stat, 0) < 0)
1177 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1179 ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
1180 if (ret != EXIT_SUCCESS)
1181 die("child finished with error '%d'\n", stat);
1188 struct winsize w = {term.row, term.col, 0, 0};
1190 /* seems to work fine on linux, openbsd and freebsd */
1191 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1192 die("openpty failed: %s\n", strerror(errno));
1194 switch(pid = fork()) {
1196 die("fork failed\n");
1199 setsid(); /* create a new process group */
1200 dup2(s, STDIN_FILENO);
1201 dup2(s, STDOUT_FILENO);
1202 dup2(s, STDERR_FILENO);
1203 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1204 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1212 signal(SIGCHLD, sigchld);
1214 term.mode |= MODE_PRINT;
1215 iofd = (!strcmp(opt_io, "-")) ?
1217 open(opt_io, O_WRONLY | O_CREAT, 0666);
1219 fprintf(stderr, "Error opening %s:%s\n",
1220 opt_io, strerror(errno));
1229 static char buf[BUFSIZ];
1230 static int buflen = 0;
1233 int charsize; /* size of utf8 char in bytes */
1237 /* append read bytes to unprocessed bytes */
1238 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1239 die("Couldn't read from shell: %s\n", strerror(errno));
1241 /* process every complete utf8 char */
1244 while((charsize = utf8decode(ptr, &unicodep, buflen))) {
1245 utf8encode(unicodep, s, UTF_SIZ);
1251 /* keep any uncomplete utf8 char for the next call */
1252 memmove(buf, ptr, buflen);
1256 ttywrite(const char *s, size_t n) {
1257 if(xwrite(cmdfd, s, n) == -1)
1258 die("write error on tty: %s\n", strerror(errno));
1262 ttysend(char *s, size_t n) {
1264 if(IS_SET(MODE_ECHO))
1272 w.ws_row = term.row;
1273 w.ws_col = term.col;
1274 w.ws_xpixel = xw.tw;
1275 w.ws_ypixel = xw.th;
1276 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1277 fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
1281 tattrset(int attr) {
1284 for(i = 0; i < term.row-1; i++) {
1285 for(j = 0; j < term.col-1; j++) {
1286 if(term.line[i][j].mode & attr)
1295 tsetdirt(int top, int bot) {
1298 LIMIT(top, 0, term.row-1);
1299 LIMIT(bot, 0, term.row-1);
1301 for(i = top; i <= bot; i++)
1306 tsetdirtattr(int attr) {
1309 for(i = 0; i < term.row-1; i++) {
1310 for(j = 0; j < term.col-1; j++) {
1311 if(term.line[i][j].mode & attr) {
1321 tsetdirt(0, term.row-1);
1326 static TCursor c[2];
1327 bool alt = IS_SET(MODE_ALTSCREEN);
1329 if(mode == CURSOR_SAVE) {
1331 } else if(mode == CURSOR_LOAD) {
1333 tmoveto(c[alt].x, c[alt].y);
1341 term.c = (TCursor){{
1345 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1347 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1348 for(i = tabspaces; i < term.col; i += tabspaces)
1351 term.bot = term.row - 1;
1352 term.mode = MODE_WRAP;
1353 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1356 for(i = 0; i < 2; i++) {
1358 tcursor(CURSOR_SAVE);
1359 tclearregion(0, 0, term.col-1, term.row-1);
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];
2345 static char E[UTF_SIZ] = "E";
2348 if(c == '8') { /* DEC screen alignment test. */
2349 for(x = 0; x < term.col; ++x) {
2350 for(y = 0; y < term.row; ++y)
2351 tsetchar(E, &term.c.attr, x, y);
2357 tstrsequence(uchar c) {
2360 case 0x90: /* DCS -- Device Control String */
2363 case 0x9f: /* APC -- Application Program Command */
2366 case 0x9e: /* PM -- Privacy Message */
2369 case 0x9d: /* OSC -- Operating System Command */
2376 term.esc |= ESC_STR;
2381 tcontrolcode(uchar ascii) {
2382 static char question[UTF_SIZ] = "?";
2389 tmoveto(term.c.x-1, term.c.y);
2392 tmoveto(0, term.c.y);
2397 /* go to first col if the mode is set */
2398 tnewline(IS_SET(MODE_CRLF));
2400 case '\a': /* BEL */
2401 if(term.esc & ESC_STR_END) {
2402 /* backwards compatibility to xterm */
2405 if(!(xw.state & WIN_FOCUSED))
2408 XBell(xw.dpy, bellvolume);
2411 case '\033': /* ESC */
2413 term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
2414 term.esc |= ESC_START;
2416 case '\016': /* SO */
2419 case '\017': /* SI */
2422 case '\032': /* SUB */
2423 tsetchar(question, &term.c.attr, term.c.x, term.c.y);
2424 case '\030': /* CAN */
2427 case '\005': /* ENQ (IGNORED) */
2428 case '\000': /* NUL (IGNORED) */
2429 case '\021': /* XON (IGNORED) */
2430 case '\023': /* XOFF (IGNORED) */
2431 case 0177: /* DEL (IGNORED) */
2433 case 0x84: /* TODO: IND */
2435 case 0x85: /* NEL -- Next line */
2436 tnewline(1); /* always go to first col */
2438 case 0x88: /* HTS -- Horizontal tab stop */
2439 term.tabs[term.c.x] = 1;
2441 case 0x8d: /* TODO: RI */
2442 case 0x8e: /* TODO: SS2 */
2443 case 0x8f: /* TODO: SS3 */
2444 case 0x98: /* TODO: SOS */
2446 case 0x9a: /* DECID -- Identify Terminal */
2447 ttywrite(vtiden, sizeof(vtiden) - 1);
2449 case 0x9b: /* TODO: CSI */
2450 case 0x9c: /* TODO: ST */
2452 case 0x90: /* DCS -- Device Control String */
2453 case 0x9f: /* APC -- Application Program Command */
2454 case 0x9e: /* PM -- Privacy Message */
2455 case 0x9d: /* OSC -- Operating System Command */
2456 tstrsequence(ascii);
2459 /* only CAN, SUB, \a and C1 chars interrupt a sequence */
2460 term.esc &= ~(ESC_STR_END|ESC_STR);
2465 * returns 1 when the sequence is finished and it hasn't to read
2466 * more characters for this sequence, otherwise 0
2469 eschandle(uchar ascii) {
2472 term.esc |= ESC_CSI;
2475 term.esc |= ESC_TEST;
2477 case 'P': /* DCS -- Device Control String */
2478 case '_': /* APC -- Application Program Command */
2479 case '^': /* PM -- Privacy Message */
2480 case ']': /* OSC -- Operating System Command */
2481 case 'k': /* old title set compatibility */
2482 tstrsequence(ascii);
2484 case '(': /* set primary charset G0 */
2485 case ')': /* set secondary charset G1 */
2486 case '*': /* set tertiary charset G2 */
2487 case '+': /* set quaternary charset G3 */
2488 term.icharset = ascii - '(';
2489 term.esc |= ESC_ALTCHARSET;
2491 case 'D': /* IND -- Linefeed */
2492 if(term.c.y == term.bot) {
2493 tscrollup(term.top, 1);
2495 tmoveto(term.c.x, term.c.y+1);
2498 case 'E': /* NEL -- Next line */
2499 tnewline(1); /* always go to first col */
2501 case 'H': /* HTS -- Horizontal tab stop */
2502 term.tabs[term.c.x] = 1;
2504 case 'M': /* RI -- Reverse index */
2505 if(term.c.y == term.top) {
2506 tscrolldown(term.top, 1);
2508 tmoveto(term.c.x, term.c.y-1);
2511 case 'Z': /* DECID -- Identify Terminal */
2512 ttywrite(vtiden, sizeof(vtiden) - 1);
2514 case 'c': /* RIS -- Reset to inital state */
2519 case '=': /* DECPAM -- Application keypad */
2520 term.mode |= MODE_APPKEYPAD;
2522 case '>': /* DECPNM -- Normal keypad */
2523 term.mode &= ~MODE_APPKEYPAD;
2525 case '7': /* DECSC -- Save Cursor */
2526 tcursor(CURSOR_SAVE);
2528 case '8': /* DECRC -- Restore Cursor */
2529 tcursor(CURSOR_LOAD);
2531 case '\\': /* ST -- String Terminator */
2532 if(term.esc & ESC_STR_END)
2536 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2537 (uchar) ascii, isprint(ascii)? ascii:'.');
2544 tputc(char *c, int len) {
2553 unicodep = ascii = *c;
2555 utf8decode(c, &unicodep, UTF_SIZ);
2556 width = wcwidth(unicodep);
2557 control = ISCONTROLC1(unicodep);
2561 if(IS_SET(MODE_PRINT))
2563 control = ISCONTROL(unicodep);
2566 * STR sequence must be checked before anything else
2567 * because it uses all following characters until it
2568 * receives a ESC, a SUB, a ST or any other C1 control
2571 if(term.esc & ESC_STR) {
2573 (ascii == '\a' || ascii == 030 ||
2574 ascii == 032 || ascii == 033 ||
2575 ISCONTROLC1(unicodep))) {
2576 term.esc &= ~(ESC_START|ESC_STR);
2577 term.esc |= ESC_STR_END;
2578 } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2579 memmove(&strescseq.buf[strescseq.len], c, len);
2580 strescseq.len += len;
2584 * Here is a bug in terminals. If the user never sends
2585 * some code to stop the str or esc command, then st
2586 * will stop responding. But this is better than
2587 * silently failing with unknown characters. At least
2588 * then users will report back.
2590 * In the case users ever get fixed, here is the code:
2601 * Actions of control codes must be performed as soon they arrive
2602 * because they can be embedded inside a control sequence, and
2603 * they must not cause conflicts with sequences.
2606 tcontrolcode(ascii);
2608 * control codes are not shown ever
2611 } else if(term.esc & ESC_START) {
2612 if(term.esc & ESC_CSI) {
2613 csiescseq.buf[csiescseq.len++] = ascii;
2614 if(BETWEEN(ascii, 0x40, 0x7E)
2615 || csiescseq.len >= \
2616 sizeof(csiescseq.buf)-1) {
2622 } else if(term.esc & ESC_ALTCHARSET) {
2624 } else if(term.esc & ESC_TEST) {
2627 if (!eschandle(ascii))
2629 /* sequence already finished */
2633 * All characters which form part of a sequence are not
2638 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2641 gp = &term.line[term.c.y][term.c.x];
2642 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2643 gp->mode |= ATTR_WRAP;
2647 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col)
2648 memmove(gp+1, gp, (term.col - term.c.x - 1) * sizeof(Glyph));
2650 if(term.c.x+width > term.col)
2653 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2656 gp->mode |= ATTR_WIDE;
2657 if(term.c.x+1 < term.col) {
2659 gp[1].mode = ATTR_WDUMMY;
2662 if(term.c.x+width < term.col) {
2663 tmoveto(term.c.x+width, term.c.y);
2665 term.c.state |= CURSOR_WRAPNEXT;
2670 tresize(int col, int row) {
2672 int minrow = MIN(row, term.row);
2673 int mincol = MIN(col, term.col);
2674 int slide = term.c.y - row + 1;
2678 if(col < 1 || row < 1) {
2680 "tresize: error resizing to %dx%d\n", col, row);
2684 /* free unneeded rows */
2688 * slide screen to keep cursor where we expect it -
2689 * tscrollup would work here, but we can optimize to
2690 * memmove because we're freeing the earlier lines
2692 for(/* i = 0 */; i < slide; i++) {
2696 memmove(term.line, term.line + slide, row * sizeof(Line));
2697 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2699 for(i += row; i < term.row; i++) {
2704 /* resize to new height */
2705 term.line = xrealloc(term.line, row * sizeof(Line));
2706 term.alt = xrealloc(term.alt, row * sizeof(Line));
2707 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2708 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2710 /* resize each row to new width, zero-pad if needed */
2711 for(i = 0; i < minrow; i++) {
2712 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2713 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2716 /* allocate any new rows */
2717 for(/* i == minrow */; i < row; i++) {
2718 term.line[i] = xmalloc(col * sizeof(Glyph));
2719 term.alt[i] = xmalloc(col * sizeof(Glyph));
2721 if(col > term.col) {
2722 bp = term.tabs + term.col;
2724 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2725 while(--bp > term.tabs && !*bp)
2727 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2730 /* update terminal size */
2733 /* reset scrolling region */
2734 tsetscroll(0, row-1);
2735 /* make use of the LIMIT in tmoveto */
2736 tmoveto(term.c.x, term.c.y);
2737 /* Clearing both screens (it makes dirty all lines) */
2739 for(i = 0; i < 2; i++) {
2740 if(mincol < col && 0 < minrow) {
2741 tclearregion(mincol, 0, col - 1, minrow - 1);
2743 if(0 < col && minrow < row) {
2744 tclearregion(0, minrow, col - 1, row - 1);
2747 tcursor(CURSOR_LOAD);
2753 xresize(int col, int row) {
2754 xw.tw = MAX(1, col * xw.cw);
2755 xw.th = MAX(1, row * xw.ch);
2757 XFreePixmap(xw.dpy, xw.buf);
2758 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2759 DefaultDepth(xw.dpy, xw.scr));
2760 XftDrawChange(xw.draw, xw.buf);
2761 xclear(0, 0, xw.w, xw.h);
2764 static inline ushort
2765 sixd_to_16bit(int x) {
2766 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2772 XRenderColor color = { .alpha = 0xffff };
2777 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2778 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2781 /* load colors [0-15] and [256-LEN(colorname)] (config.h) */
2782 for(i = 0; i < LEN(colorname); i++) {
2785 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2786 die("Could not allocate color '%s'\n", colorname[i]);
2790 /* load colors [16-231] ; same colors as xterm */
2791 for(i = 16; i < 6*6*6+16; i++) {
2792 color.red = sixd_to_16bit( ((i-16)/36)%6 );
2793 color.green = sixd_to_16bit( ((i-16)/6) %6 );
2794 color.blue = sixd_to_16bit( ((i-16)/1) %6 );
2795 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2796 die("Could not allocate color %d\n", i);
2799 /* load colors [232-255] ; grayscale */
2800 for(; i < 256; i++) {
2801 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
2802 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2803 die("Could not allocate color %d\n", i);
2809 xsetcolorname(int x, const char *name) {
2810 XRenderColor color = { .alpha = 0xffff };
2813 if(!BETWEEN(x, 0, LEN(colorname)))
2817 if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
2818 color.red = sixd_to_16bit( ((x-16)/36)%6 );
2819 color.green = sixd_to_16bit( ((x-16)/6) %6 );
2820 color.blue = sixd_to_16bit( ((x-16)/1) %6 );
2821 if(!XftColorAllocValue(xw.dpy, xw.vis,
2822 xw.cmap, &color, &ncolor)) {
2826 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2829 } else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
2830 color.red = color.green = color.blue = \
2831 0x0808 + 0x0a0a * (x - (16 + 216));
2832 if(!XftColorAllocValue(xw.dpy, xw.vis,
2833 xw.cmap, &color, &ncolor)) {
2837 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2840 } else { /* system colors */
2841 name = colorname[x];
2844 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
2847 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2853 xtermclear(int col1, int row1, int col2, int row2) {
2854 XftDrawRect(xw.draw,
2855 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2856 borderpx + col1 * xw.cw,
2857 borderpx + row1 * xw.ch,
2858 (col2-col1+1) * xw.cw,
2859 (row2-row1+1) * xw.ch);
2863 * Absolute coordinates.
2866 xclear(int x1, int y1, int x2, int y2) {
2867 XftDrawRect(xw.draw,
2868 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2869 x1, y1, x2-x1, y2-y1);
2874 XClassHint class = {opt_class ? opt_class : termname, termname};
2875 XWMHints wm = {.flags = InputHint, .input = 1};
2876 XSizeHints *sizeh = NULL;
2878 sizeh = XAllocSizeHints();
2880 sizeh->flags = PSize | PResizeInc | PBaseSize;
2881 sizeh->height = xw.h;
2882 sizeh->width = xw.w;
2883 sizeh->height_inc = xw.ch;
2884 sizeh->width_inc = xw.cw;
2885 sizeh->base_height = 2 * borderpx;
2886 sizeh->base_width = 2 * borderpx;
2887 if(xw.isfixed == True) {
2888 sizeh->flags |= PMaxSize | PMinSize;
2889 sizeh->min_width = sizeh->max_width = xw.w;
2890 sizeh->min_height = sizeh->max_height = xw.h;
2892 if(xw.gm & (XValue|YValue)) {
2893 sizeh->flags |= USPosition | PWinGravity;
2896 sizeh->win_gravity = xgeommasktogravity(xw.gm);
2899 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2905 xgeommasktogravity(int mask) {
2906 switch(mask & (XNegative|YNegative)) {
2908 return NorthWestGravity;
2910 return NorthEastGravity;
2912 return SouthWestGravity;
2914 return SouthEastGravity;
2918 xloadfont(Font *f, FcPattern *pattern) {
2922 match = FcFontMatch(NULL, pattern, &result);
2926 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2927 FcPatternDestroy(match);
2932 f->pattern = FcPatternDuplicate(pattern);
2934 f->ascent = f->match->ascent;
2935 f->descent = f->match->descent;
2937 f->rbearing = f->match->max_advance_width;
2939 f->height = f->ascent + f->descent;
2940 f->width = f->lbearing + f->rbearing;
2946 xloadfonts(char *fontstr, double fontsize) {
2948 FcResult r_sz, r_psz;
2952 if(fontstr[0] == '-') {
2953 pattern = XftXlfdParse(fontstr, False, False);
2955 pattern = FcNameParse((FcChar8 *)fontstr);
2959 die("st: can't open font %s\n", fontstr);
2962 FcPatternDel(pattern, FC_PIXEL_SIZE);
2963 FcPatternDel(pattern, FC_SIZE);
2964 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2965 usedfontsize = fontsize;
2967 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2968 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2969 if(r_psz == FcResultMatch) {
2970 usedfontsize = fontval;
2971 } else if(r_sz == FcResultMatch) {
2975 * Default font size is 12, if none given. This is to
2976 * have a known usedfontsize value.
2978 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2983 FcConfigSubstitute(0, pattern, FcMatchPattern);
2984 FcDefaultSubstitute(pattern);
2986 if(xloadfont(&dc.font, pattern))
2987 die("st: can't open font %s\n", fontstr);
2989 if(usedfontsize < 0) {
2990 FcPatternGetDouble(dc.font.match->pattern,
2991 FC_PIXEL_SIZE, 0, &fontval);
2992 usedfontsize = fontval;
2995 /* Setting character width and height. */
2996 xw.cw = ceilf(dc.font.width * cwscale);
2997 xw.ch = ceilf(dc.font.height * chscale);
2999 FcPatternDel(pattern, FC_SLANT);
3000 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
3001 if(xloadfont(&dc.ifont, pattern))
3002 die("st: can't open font %s\n", fontstr);
3004 FcPatternDel(pattern, FC_WEIGHT);
3005 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
3006 if(xloadfont(&dc.ibfont, pattern))
3007 die("st: can't open font %s\n", fontstr);
3009 FcPatternDel(pattern, FC_SLANT);
3010 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
3011 if(xloadfont(&dc.bfont, pattern))
3012 die("st: can't open font %s\n", fontstr);
3014 FcPatternDestroy(pattern);
3018 xloadfontset(Font *f) {
3021 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
3027 xunloadfont(Font *f) {
3028 XftFontClose(xw.dpy, f->match);
3029 FcPatternDestroy(f->pattern);
3031 FcFontSetDestroy(f->set);
3035 xunloadfonts(void) {
3036 /* Free the loaded fonts in the font cache. */
3038 XftFontClose(xw.dpy, frc[--frclen].font);
3040 xunloadfont(&dc.font);
3041 xunloadfont(&dc.bfont);
3042 xunloadfont(&dc.ifont);
3043 xunloadfont(&dc.ibfont);
3047 xzoom(const Arg *arg) {
3049 xloadfonts(usedfont, usedfontsize + arg->i);
3060 pid_t thispid = getpid();
3062 if(!(xw.dpy = XOpenDisplay(NULL)))
3063 die("Can't open display\n");
3064 xw.scr = XDefaultScreen(xw.dpy);
3065 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3069 die("Could not init fontconfig.\n");
3071 usedfont = (opt_font == NULL)? font : opt_font;
3072 xloadfonts(usedfont, 0);
3075 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3078 /* adjust fixed window geometry */
3079 xw.w = 2 * borderpx + term.col * xw.cw;
3080 xw.h = 2 * borderpx + term.row * xw.ch;
3081 if(xw.gm & XNegative)
3082 xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
3083 if(xw.gm & YNegative)
3084 xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
3087 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3088 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3089 xw.attrs.bit_gravity = NorthWestGravity;
3090 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3091 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3092 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3093 xw.attrs.colormap = xw.cmap;
3095 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3096 XRootWindow(xw.dpy, xw.scr);
3097 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
3098 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3099 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3100 | CWEventMask | CWColormap, &xw.attrs);
3102 memset(&gcvalues, 0, sizeof(gcvalues));
3103 gcvalues.graphics_exposures = False;
3104 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3106 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3107 DefaultDepth(xw.dpy, xw.scr));
3108 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3109 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3111 /* Xft rendering context */
3112 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3115 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3116 XSetLocaleModifiers("@im=local");
3117 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3118 XSetLocaleModifiers("@im=");
3119 if((xw.xim = XOpenIM(xw.dpy,
3120 NULL, NULL, NULL)) == NULL) {
3121 die("XOpenIM failed. Could not open input"
3126 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3127 | XIMStatusNothing, XNClientWindow, xw.win,
3128 XNFocusWindow, xw.win, NULL);
3130 die("XCreateIC failed. Could not obtain input method.\n");
3132 /* white cursor, black outline */
3133 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3134 XDefineCursor(xw.dpy, xw.win, cursor);
3135 XRecolorCursor(xw.dpy, cursor,
3136 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3137 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3139 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3140 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3141 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3142 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3144 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3145 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3146 PropModeReplace, (uchar *)&thispid, 1);
3149 XMapWindow(xw.dpy, xw.win);
3151 XSync(xw.dpy, False);
3155 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3156 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3157 width = charlen * xw.cw, xp, i;
3159 int u8fl, u8fblen, u8cblen, doesexist;
3162 Font *font = &dc.font;
3164 FcPattern *fcpattern, *fontpattern;
3165 FcFontSet *fcsets[] = { NULL };
3166 FcCharSet *fccharset;
3167 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3168 XRenderColor colfg, colbg;
3172 frcflags = FRC_NORMAL;
3174 if(base.mode & ATTR_ITALIC) {
3175 if(base.fg == defaultfg)
3176 base.fg = defaultitalic;
3178 frcflags = FRC_ITALIC;
3179 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3180 if(base.fg == defaultfg)
3181 base.fg = defaultitalic;
3183 frcflags = FRC_ITALICBOLD;
3184 } else if(base.mode & ATTR_UNDERLINE) {
3185 if(base.fg == defaultfg)
3186 base.fg = defaultunderline;
3189 if(IS_TRUECOL(base.fg)) {
3190 colfg.alpha = 0xffff;
3191 colfg.red = TRUERED(base.fg);
3192 colfg.green = TRUEGREEN(base.fg);
3193 colfg.blue = TRUEBLUE(base.fg);
3194 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3197 fg = &dc.col[base.fg];
3200 if(IS_TRUECOL(base.bg)) {
3201 colbg.alpha = 0xffff;
3202 colbg.green = TRUEGREEN(base.bg);
3203 colbg.red = TRUERED(base.bg);
3204 colbg.blue = TRUEBLUE(base.bg);
3205 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3208 bg = &dc.col[base.bg];
3211 if(base.mode & ATTR_BOLD) {
3213 * change basic system colors [0-7]
3214 * to bright system colors [8-15]
3216 if(BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT))
3217 fg = &dc.col[base.fg + 8];
3219 if(base.mode & ATTR_ITALIC) {
3221 frcflags = FRC_ITALICBOLD;
3224 frcflags = FRC_BOLD;
3228 if(IS_SET(MODE_REVERSE)) {
3229 if(fg == &dc.col[defaultfg]) {
3230 fg = &dc.col[defaultbg];
3232 colfg.red = ~fg->color.red;
3233 colfg.green = ~fg->color.green;
3234 colfg.blue = ~fg->color.blue;
3235 colfg.alpha = fg->color.alpha;
3236 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3241 if(bg == &dc.col[defaultbg]) {
3242 bg = &dc.col[defaultfg];
3244 colbg.red = ~bg->color.red;
3245 colbg.green = ~bg->color.green;
3246 colbg.blue = ~bg->color.blue;
3247 colbg.alpha = bg->color.alpha;
3248 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3254 if(base.mode & ATTR_REVERSE) {
3260 if(base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) {
3261 colfg.red = fg->color.red / 2;
3262 colfg.green = fg->color.green / 2;
3263 colfg.blue = fg->color.blue / 2;
3264 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
3268 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3271 if(base.mode & ATTR_INVISIBLE)
3274 /* Intelligent cleaning up of the borders. */
3276 xclear(0, (y == 0)? 0 : winy, borderpx,
3277 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3279 if(x + charlen >= term.col) {
3280 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3281 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3284 xclear(winx, 0, winx + width, borderpx);
3286 xclear(winx, winy + xw.ch, winx + width, xw.h);
3288 /* Clean up the region we want to draw to. */
3289 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3291 /* Set the clip region because Xft is sometimes dirty. */
3296 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3298 for(xp = winx; bytelen > 0;) {
3300 * Search for the range in the to be printed string of glyphs
3301 * that are in the main font. Then print that range. If
3302 * some glyph is found that is not in the font, do the
3308 oneatatime = font->width != xw.cw;
3311 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3315 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3319 if(!oneatatime && bytelen > 0)
3324 XftDrawStringUtf8(xw.draw, fg,
3326 winy + font->ascent,
3339 /* Search the font cache. */
3340 for(i = 0; i < frclen; i++) {
3341 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3342 && frc[i].flags == frcflags) {
3347 /* Nothing was found. */
3351 fcsets[0] = font->set;
3354 * Nothing was found in the cache. Now use
3355 * some dozen of Fontconfig calls to get the
3356 * font for one single character.
3358 * Xft and fontconfig are design failures.
3360 fcpattern = FcPatternDuplicate(font->pattern);
3361 fccharset = FcCharSetCreate();
3363 FcCharSetAddChar(fccharset, unicodep);
3364 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3366 FcPatternAddBool(fcpattern, FC_SCALABLE,
3369 FcConfigSubstitute(0, fcpattern,
3371 FcDefaultSubstitute(fcpattern);
3373 fontpattern = FcFontSetMatch(0, fcsets,
3374 FcTrue, fcpattern, &fcres);
3377 * Overwrite or create the new cache entry.
3379 if(frclen >= LEN(frc)) {
3380 frclen = LEN(frc) - 1;
3381 XftFontClose(xw.dpy, frc[frclen].font);
3384 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3386 frc[frclen].flags = frcflags;
3391 FcPatternDestroy(fcpattern);
3392 FcCharSetDestroy(fccharset);
3395 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3396 xp, winy + frc[i].font->ascent,
3397 (FcChar8 *)u8c, u8cblen);
3399 xp += xw.cw * wcwidth(unicodep);
3403 * This is how the loop above actually should be. Why does the
3404 * application have to care about font details?
3406 * I have to repeat: Xft and Fontconfig are design failures.
3409 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3410 winy + font->ascent, (FcChar8 *)s, bytelen);
3413 if(base.mode & ATTR_UNDERLINE) {
3414 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3418 if(base.mode & ATTR_STRUCK) {
3419 XftDrawRect(xw.draw, fg, winx, winy + 2 * font->ascent / 3,
3423 /* Reset clip to none. */
3424 XftDrawSetClip(xw.draw, 0);
3429 static int oldx = 0, oldy = 0;
3430 int sl, width, curx;
3431 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3433 LIMIT(oldx, 0, term.col-1);
3434 LIMIT(oldy, 0, term.row-1);
3438 /* adjust position if in dummy */
3439 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3441 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3444 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3446 /* remove the old cursor */
3447 sl = utf8len(term.line[oldy][oldx].c);
3448 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3449 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3452 /* draw the new one */
3453 if(!(IS_SET(MODE_HIDE))) {
3454 if(xw.state & WIN_FOCUSED) {
3455 if(IS_SET(MODE_REVERSE)) {
3456 g.mode |= ATTR_REVERSE;
3462 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3464 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3466 XftDrawRect(xw.draw, &dc.col[defaultcs],
3467 borderpx + curx * xw.cw,
3468 borderpx + term.c.y * xw.ch,
3470 XftDrawRect(xw.draw, &dc.col[defaultcs],
3471 borderpx + curx * xw.cw,
3472 borderpx + term.c.y * xw.ch,
3474 XftDrawRect(xw.draw, &dc.col[defaultcs],
3475 borderpx + (curx + 1) * xw.cw - 1,
3476 borderpx + term.c.y * xw.ch,
3478 XftDrawRect(xw.draw, &dc.col[defaultcs],
3479 borderpx + curx * xw.cw,
3480 borderpx + (term.c.y + 1) * xw.ch - 1,
3483 oldx = curx, oldy = term.c.y;
3489 xsettitle(char *p) {
3492 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3494 XSetWMName(xw.dpy, xw.win, &prop);
3495 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3501 xsettitle(opt_title ? opt_title : "st");
3505 redraw(int timeout) {
3506 struct timespec tv = {0, timeout * 1000};
3512 nanosleep(&tv, NULL);
3513 XSync(xw.dpy, False); /* necessary for a good tput flash */
3519 drawregion(0, 0, term.col, term.row);
3520 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3522 XSetForeground(xw.dpy, dc.gc,
3523 dc.col[IS_SET(MODE_REVERSE)?
3524 defaultfg : defaultbg].pixel);
3528 drawregion(int x1, int y1, int x2, int y2) {
3529 int ic, ib, x, y, ox, sl;
3531 char buf[DRAW_BUF_SIZ];
3532 bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
3535 if(!(xw.state & WIN_VISIBLE))
3538 for(y = y1; y < y2; y++) {
3542 xtermclear(0, y, term.col, y);
3544 base = term.line[y][0];
3546 for(x = x1; x < x2; x++) {
3547 new = term.line[y][x];
3548 if(new.mode == ATTR_WDUMMY)
3550 if(ena_sel && selected(x, y))
3551 new.mode ^= ATTR_REVERSE;
3552 if(ib > 0 && (ATTRCMP(base, new)
3553 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3554 xdraws(buf, base, ox, y, ic, ib);
3562 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3563 memcpy(buf+ib, new.c, sl);
3565 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3568 xdraws(buf, base, ox, y, ic, ib);
3574 expose(XEvent *ev) {
3575 XExposeEvent *e = &ev->xexpose;
3577 if(xw.state & WIN_REDRAW) {
3579 xw.state &= ~WIN_REDRAW;
3585 visibility(XEvent *ev) {
3586 XVisibilityEvent *e = &ev->xvisibility;
3588 if(e->state == VisibilityFullyObscured) {
3589 xw.state &= ~WIN_VISIBLE;
3590 } else if(!(xw.state & WIN_VISIBLE)) {
3591 /* need a full redraw for next Expose, not just a buf copy */
3592 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3598 xw.state &= ~WIN_VISIBLE;
3602 xsetpointermotion(int set) {
3603 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3604 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3608 xseturgency(int add) {
3609 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3611 MODBIT(h->flags, add, XUrgencyHint);
3612 XSetWMHints(xw.dpy, xw.win, h);
3618 XFocusChangeEvent *e = &ev->xfocus;
3620 if(e->mode == NotifyGrab)
3623 if(ev->type == FocusIn) {
3624 XSetICFocus(xw.xic);
3625 xw.state |= WIN_FOCUSED;
3627 if(IS_SET(MODE_FOCUS))
3628 ttywrite("\033[I", 3);
3630 XUnsetICFocus(xw.xic);
3631 xw.state &= ~WIN_FOCUSED;
3632 if(IS_SET(MODE_FOCUS))
3633 ttywrite("\033[O", 3);
3638 match(uint mask, uint state) {
3639 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3643 numlock(const Arg *dummy) {
3648 kmap(KeySym k, uint state) {
3652 /* Check for mapped keys out of X11 function keys. */
3653 for(i = 0; i < LEN(mappedkeys); i++) {
3654 if(mappedkeys[i] == k)
3657 if(i == LEN(mappedkeys)) {
3658 if((k & 0xFFFF) < 0xFD00)
3662 for(kp = key; kp < key + LEN(key); kp++) {
3666 if(!match(kp->mask, state))
3669 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3671 if(term.numlock && kp->appkey == 2)
3674 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3677 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3687 kpress(XEvent *ev) {
3688 XKeyEvent *e = &ev->xkey;
3690 char buf[32], *customkey;
3696 if(IS_SET(MODE_KBDLOCK))
3699 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3701 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3702 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3703 bp->func(&(bp->arg));
3708 /* 2. custom keys from config.h */
3709 if((customkey = kmap(ksym, e->state))) {
3710 ttysend(customkey, strlen(customkey));
3714 /* 3. composed string from input method */
3717 if(len == 1 && e->state & Mod1Mask) {
3718 if(IS_SET(MODE_8BIT)) {
3721 len = utf8encode(c, buf, UTF_SIZ);
3734 cmessage(XEvent *e) {
3737 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3739 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3740 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3741 xw.state |= WIN_FOCUSED;
3743 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3744 xw.state &= ~WIN_FOCUSED;
3746 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3747 /* Send SIGHUP to shell */
3754 cresize(int width, int height) {
3762 col = (xw.w - 2 * borderpx) / xw.cw;
3763 row = (xw.h - 2 * borderpx) / xw.ch;
3772 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3775 cresize(e->xconfigure.width, e->xconfigure.height);
3781 int w = xw.w, h = xw.h;
3783 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3784 struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
3787 /* Waiting for window mapping */
3789 XNextEvent(xw.dpy, &ev);
3790 if(XFilterEvent(&ev, None))
3792 if(ev.type == ConfigureNotify) {
3793 w = ev.xconfigure.width;
3794 h = ev.xconfigure.height;
3795 } else if(ev.type == MapNotify) {
3803 clock_gettime(CLOCK_MONOTONIC, &last);
3806 for(xev = actionfps;;) {
3808 FD_SET(cmdfd, &rfd);
3811 if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
3814 die("select failed: %s\n", strerror(errno));
3816 if(FD_ISSET(cmdfd, &rfd)) {
3819 blinkset = tattrset(ATTR_BLINK);
3821 MODBIT(term.mode, 0, MODE_BLINK);
3825 if(FD_ISSET(xfd, &rfd))
3828 clock_gettime(CLOCK_MONOTONIC, &now);
3829 drawtimeout.tv_sec = 0;
3830 drawtimeout.tv_nsec = (1000/xfps) * 1E6;
3834 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3835 tsetdirtattr(ATTR_BLINK);
3836 term.mode ^= MODE_BLINK;
3840 deltatime = TIMEDIFF(now, last);
3841 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3848 while(XPending(xw.dpy)) {
3849 XNextEvent(xw.dpy, &ev);
3850 if(XFilterEvent(&ev, None))
3852 if(handler[ev.type])
3853 (handler[ev.type])(&ev);
3859 if(xev && !FD_ISSET(xfd, &rfd))
3861 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3863 if(TIMEDIFF(now, lastblink) \
3865 drawtimeout.tv_nsec = 1000;
3867 drawtimeout.tv_nsec = (1E6 * \
3882 die("%s " VERSION " (c) 2010-2014 st engineers\n" \
3883 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
3884 " [-i] [-t title] [-w windowid] [-e command ...]\n", argv0);
3888 main(int argc, char *argv[]) {
3890 uint cols = 80, rows = 24;
3897 allowaltscreen = false;
3900 opt_class = EARGF(usage());
3903 /* eat all remaining arguments */
3906 if(argv[1] != NULL && opt_title == NULL) {
3907 titles = xstrdup(argv[1]);
3908 opt_title = basename(titles);
3913 opt_font = EARGF(usage());
3916 xw.gm = XParseGeometry(EARGF(usage()),
3917 &xw.l, &xw.t, &cols, &rows);
3923 opt_io = EARGF(usage());
3926 opt_title = EARGF(usage());
3929 opt_embed = EARGF(usage());
3937 setlocale(LC_CTYPE, "");
3938 XSetLocaleModifiers("");
3939 tnew(cols? cols : 1, rows? rows : 1);