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 <X11/XKBlib.h>
31 #include <fontconfig/fontconfig.h>
43 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
45 #elif defined(__FreeBSD__) || defined(__DragonFly__)
51 #define XEMBED_FOCUS_IN 4
52 #define XEMBED_FOCUS_OUT 5
55 #define UTF_INVALID 0xFFFD
57 #define ESC_BUF_SIZ (128*UTF_SIZ)
58 #define ESC_ARG_SIZ 16
59 #define STR_BUF_SIZ ESC_BUF_SIZ
60 #define STR_ARG_SIZ ESC_ARG_SIZ
61 #define DRAW_BUF_SIZ 20*1024
62 #define XK_ANY_MOD UINT_MAX
64 #define XK_SWITCH_MOD (1<<13)
67 #define MIN(a, b) ((a) < (b) ? (a) : (b))
68 #define MAX(a, b) ((a) < (b) ? (b) : (a))
69 #define LEN(a) (sizeof(a) / sizeof(a)[0])
70 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
71 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
72 #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
73 #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
74 #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
75 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
76 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
77 #define IS_SET(flag) ((term.mode & (flag)) != 0)
78 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_nsec-t2.tv_nsec)/1E6)
79 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
81 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
82 #define IS_TRUECOL(x) (1 << 24 & (x))
83 #define TRUERED(x) (((x) & 0xff0000) >> 8)
84 #define TRUEGREEN(x) (((x) & 0xff00))
85 #define TRUEBLUE(x) (((x) & 0xff) << 8)
88 enum glyph_attribute {
93 ATTR_UNDERLINE = 1 << 3,
95 ATTR_REVERSE = 1 << 5,
96 ATTR_INVISIBLE = 1 << 6,
100 ATTR_WDUMMY = 1 << 10,
103 enum cursor_movement {
116 MODE_INSERT = 1 << 1,
117 MODE_APPKEYPAD = 1 << 2,
118 MODE_ALTSCREEN = 1 << 3,
120 MODE_MOUSEBTN = 1 << 5,
121 MODE_MOUSEMOTION = 1 << 6,
122 MODE_REVERSE = 1 << 7,
123 MODE_KBDLOCK = 1 << 8,
126 MODE_APPCURSOR = 1 << 11,
127 MODE_MOUSESGR = 1 << 12,
129 MODE_BLINK = 1 << 14,
130 MODE_FBLINK = 1 << 15,
131 MODE_FOCUS = 1 << 16,
132 MODE_MOUSEX10 = 1 << 17,
133 MODE_MOUSEMANY = 1 << 18,
134 MODE_BRCKTPASTE = 1 << 19,
135 MODE_PRINT = 1 << 20,
136 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
153 ESC_STR = 4, /* DCS, OSC, PM, APC */
155 ESC_STR_END = 16, /* a final string was encountered */
156 ESC_TEST = 32, /* Enter in test mode */
165 enum selection_type {
170 enum selection_snap {
175 typedef unsigned char uchar;
176 typedef unsigned int uint;
177 typedef unsigned long ulong;
178 typedef unsigned short ushort;
180 typedef XftDraw *Draw;
181 typedef XftColor Color;
184 char c[UTF_SIZ]; /* character code */
185 ushort mode; /* attribute flags */
186 uint32_t fg; /* foreground */
187 uint32_t bg; /* background */
193 Glyph attr; /* current char attributes */
199 /* CSI Escape sequence structs */
200 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
202 char buf[ESC_BUF_SIZ]; /* raw string */
203 int len; /* raw string length */
205 int arg[ESC_ARG_SIZ];
206 int narg; /* nb of args */
210 /* STR Escape sequence structs */
211 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
213 char type; /* ESC type ... */
214 char buf[STR_BUF_SIZ]; /* raw string */
215 int len; /* raw string length */
216 char *args[STR_ARG_SIZ];
217 int narg; /* nb of args */
220 /* Internal representation of the screen */
222 int row; /* nb row */
223 int col; /* nb col */
224 Line *line; /* screen */
225 Line *alt; /* alternate screen */
226 bool *dirty; /* dirtyness of lines */
227 TCursor c; /* cursor */
228 int top; /* top scroll limit */
229 int bot; /* bottom scroll limit */
230 int mode; /* terminal mode flags */
231 int esc; /* escape state flags */
232 char trantbl[4]; /* charset table translation */
233 int charset; /* current charset */
234 int icharset; /* selected charset for sequence */
235 bool numlock; /* lock numbers in keyboard */
239 /* Purely graphic info */
245 Atom xembed, wmdeletewin, netwmname, netwmpid;
250 XSetWindowAttributes attrs;
252 bool isfixed; /* is fixed geometry? */
253 int l, t; /* left and top offset */
254 int gm; /* geometry mask */
255 int tw, th; /* tty width and height */
256 int w, h; /* window width and height */
257 int ch; /* char height */
258 int cw; /* char width */
259 char state; /* focus, redraw, visible */
272 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
273 signed char appkey; /* application keypad */
274 signed char appcursor; /* application cursor */
275 signed char crlf; /* crlf mode */
283 * Selection variables:
284 * nb – normalized coordinates of the beginning of the selection
285 * ne – normalized coordinates of the end of the selection
286 * ob – original coordinates of the beginning of the selection
287 * oe – original coordinates of the end of the selection
293 char *primary, *clipboard;
296 struct timespec tclick1;
297 struct timespec tclick2;
310 void (*func)(const Arg *);
314 /* function definitions used in config.h */
315 static void clipcopy(const Arg *);
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 xzoomabs(const Arg *);
321 static void xzoomreset(const Arg *);
322 static void printsel(const Arg *);
323 static void printscreen(const Arg *) ;
324 static void toggleprinter(const Arg *);
326 /* Config.h for applying patches and the configuration. */
342 /* Drawing Context */
344 Color col[MAX(LEN(colorname), 256)];
345 Font font, bfont, ifont, ibfont;
349 static void die(const char *, ...);
350 static void draw(void);
351 static void redraw(void);
352 static void drawregion(int, int, int, int);
353 static void execsh(void);
354 static void sigchld(int);
355 static void run(void);
357 static void csidump(void);
358 static void csihandle(void);
359 static void csiparse(void);
360 static void csireset(void);
361 static int eschandle(uchar ascii);
362 static void strdump(void);
363 static void strhandle(void);
364 static void strparse(void);
365 static void strreset(void);
367 static int tattrset(int);
368 static void tprinter(char *, size_t);
369 static void tdumpsel(void);
370 static void tdumpline(int);
371 static void tdump(void);
372 static void tclearregion(int, int, int, int);
373 static void tcursor(int);
374 static void tdeletechar(int);
375 static void tdeleteline(int);
376 static void tinsertblank(int);
377 static void tinsertblankline(int);
378 static int tlinelen(int);
379 static void tmoveto(int, int);
380 static void tmoveato(int, int);
381 static void tnew(int, int);
382 static void tnewline(int);
383 static void tputtab(int);
384 static void tputc(char *, int);
385 static void treset(void);
386 static void tresize(int, int);
387 static void tscrollup(int, int);
388 static void tscrolldown(int, int);
389 static void tsetattr(int *, int);
390 static void tsetchar(char *, Glyph *, int, int);
391 static void tsetscroll(int, int);
392 static void tswapscreen(void);
393 static void tsetdirt(int, int);
394 static void tsetdirtattr(int);
395 static void tsetmode(bool, bool, int *, int);
396 static void tfulldirt(void);
397 static void techo(char *, int);
398 static void tcontrolcode(uchar );
399 static void tdectest(char );
400 static int32_t tdefcolor(int *, int *, int);
401 static void tdeftran(char);
402 static inline bool match(uint, uint);
403 static void ttynew(void);
404 static void ttyread(void);
405 static void ttyresize(void);
406 static void ttysend(char *, size_t);
407 static void ttywrite(const char *, size_t);
408 static void tstrsequence(uchar c);
410 static void xdraws(char *, Glyph, int, int, int, int);
411 static void xhints(void);
412 static void xclear(int, int, int, int);
413 static void xdrawcursor(void);
414 static void xinit(void);
415 static void xloadcols(void);
416 static int xsetcolorname(int, const char *);
417 static int xgeommasktogravity(int);
418 static int xloadfont(Font *, FcPattern *);
419 static void xloadfonts(char *, double);
420 static int xloadfontset(Font *);
421 static void xsettitle(char *);
422 static void xresettitle(void);
423 static void xsetpointermotion(int);
424 static void xseturgency(int);
425 static void xsetsel(char *);
426 static void xtermclear(int, int, int, int);
427 static void xunloadfont(Font *);
428 static void xunloadfonts(void);
429 static void xresize(int, int);
431 static void expose(XEvent *);
432 static void visibility(XEvent *);
433 static void unmap(XEvent *);
434 static char *kmap(KeySym, uint);
435 static void kpress(XEvent *);
436 static void cmessage(XEvent *);
437 static void cresize(int, int);
438 static void resize(XEvent *);
439 static void focus(XEvent *);
440 static void brelease(XEvent *);
441 static void bpress(XEvent *);
442 static void bmotion(XEvent *);
443 static void selnotify(XEvent *);
444 static void selclear(XEvent *);
445 static void selrequest(XEvent *);
447 static void selinit(void);
448 static void selnormalize(void);
449 static inline bool selected(int, int);
450 static char *getsel(void);
451 static void selcopy(void);
452 static void selscroll(int, int);
453 static void selsnap(int, int *, int *, int);
454 static void getbuttoninfo(XEvent *);
455 static void mousereport(XEvent *);
457 static size_t utf8decode(char *, long *, size_t);
458 static long utf8decodebyte(char, size_t *);
459 static size_t utf8encode(long, char *, size_t);
460 static char utf8encodebyte(long, size_t);
461 static size_t utf8len(char *);
462 static size_t utf8validate(long *, size_t);
464 static ssize_t xwrite(int, const char *, size_t);
465 static void *xmalloc(size_t);
466 static void *xrealloc(void *, size_t);
467 static char *xstrdup(char *);
469 static void usage(void);
471 static void (*handler[LASTEvent])(XEvent *) = {
473 [ClientMessage] = cmessage,
474 [ConfigureNotify] = resize,
475 [VisibilityNotify] = visibility,
476 [UnmapNotify] = unmap,
480 [MotionNotify] = bmotion,
481 [ButtonPress] = bpress,
482 [ButtonRelease] = brelease,
484 * Uncomment if you want the selection to disappear when you select something
485 * different in another window.
487 /* [SelectionClear] = selclear, */
488 [SelectionNotify] = selnotify,
489 [SelectionRequest] = selrequest,
496 static CSIEscape csiescseq;
497 static STREscape strescseq;
500 static Selection sel;
501 static int iofd = STDOUT_FILENO;
502 static char **opt_cmd = NULL;
503 static char *opt_io = NULL;
504 static char *opt_title = NULL;
505 static char *opt_embed = NULL;
506 static char *opt_class = NULL;
507 static char *opt_font = NULL;
508 static int oldbutton = 3; /* button event on startup: 3 = release */
510 static char *usedfont = NULL;
511 static double usedfontsize = 0;
512 static double defaultfontsize = 0;
514 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
515 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
516 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
517 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
519 /* Font Ring Cache */
533 /* Fontcache is an array now. A new font will be appended to the array. */
534 static Fontcache frc[16];
535 static int frclen = 0;
538 xwrite(int fd, const char *s, size_t len) {
542 ssize_t r = write(fd, s, len);
552 xmalloc(size_t len) {
553 void *p = malloc(len);
556 die("Out of memory\n");
562 xrealloc(void *p, size_t len) {
563 if((p = realloc(p, len)) == NULL)
564 die("Out of memory\n");
571 if((s = strdup(s)) == NULL)
572 die("Out of memory\n");
578 utf8decode(char *c, long *u, size_t clen) {
579 size_t i, j, len, type;
585 udecoded = utf8decodebyte(c[0], &len);
586 if(!BETWEEN(len, 1, UTF_SIZ))
588 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
589 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
596 utf8validate(u, len);
601 utf8decodebyte(char c, size_t *i) {
602 for(*i = 0; *i < LEN(utfmask); ++(*i))
603 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
604 return (uchar)c & ~utfmask[*i];
609 utf8encode(long u, char *c, size_t clen) {
612 len = utf8validate(&u, 0);
615 for(i = len - 1; i != 0; --i) {
616 c[i] = utf8encodebyte(u, 0);
619 c[0] = utf8encodebyte(u, len);
624 utf8encodebyte(long u, size_t i) {
625 return utfbyte[i] | (u & ~utfmask[i]);
630 return utf8decode(c, &(long){0}, UTF_SIZ);
634 utf8validate(long *u, size_t i) {
635 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
637 for(i = 1; *u > utfmax[i]; ++i)
644 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
645 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
649 sel.clipboard = NULL;
650 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
651 if(sel.xtarget == None)
652 sel.xtarget = XA_STRING;
660 return LIMIT(x, 0, term.col-1);
668 return LIMIT(y, 0, term.row-1);
671 static int tlinelen(int y) {
674 if(term.line[y][i - 1].mode & ATTR_WRAP)
677 while(i > 0 && term.line[y][i - 1].c[0] == ' ')
687 if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
688 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
689 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
691 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
692 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
694 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
695 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
697 selsnap(sel.snap, &sel.nb.x, &sel.nb.y, -1);
698 selsnap(sel.snap, &sel.ne.x, &sel.ne.y, +1);
700 /* expand selection over line breaks */
701 if (sel.type == SEL_RECTANGULAR)
703 i = tlinelen(sel.nb.y);
706 if (tlinelen(sel.ne.y) <= sel.ne.x)
707 sel.ne.x = term.col - 1;
711 selected(int x, int y) {
712 if(sel.type == SEL_RECTANGULAR)
713 return BETWEEN(y, sel.nb.y, sel.ne.y)
714 && BETWEEN(x, sel.nb.x, sel.ne.x);
716 return BETWEEN(y, sel.nb.y, sel.ne.y)
717 && (y != sel.nb.y || x >= sel.nb.x)
718 && (y != sel.ne.y || x <= sel.ne.x);
722 selsnap(int mode, int *x, int *y, int direction) {
723 int newx, newy, xt, yt;
724 bool delim, prevdelim;
730 * Snap around if the word wraps around at the end or
731 * beginning of a line.
733 prevgp = &term.line[*y][*x];
734 prevdelim = strchr(worddelimiters, prevgp->c[0]) != NULL;
736 newx = *x + direction;
738 if(!BETWEEN(newx, 0, term.col - 1)) {
740 newx = (newx + term.col) % term.col;
741 if (!BETWEEN(newy, 0, term.row - 1))
747 yt = newy, xt = newx;
748 if(!(term.line[yt][xt].mode & ATTR_WRAP))
752 if (newx >= tlinelen(newy))
755 gp = &term.line[newy][newx];
756 delim = strchr(worddelimiters, gp->c[0]) != NULL;
757 if(!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
758 || (delim && gp->c[0] != prevgp->c[0])))
769 * Snap around if the the previous line or the current one
770 * has set ATTR_WRAP at its end. Then the whole next or
771 * previous line will be selected.
773 *x = (direction < 0) ? 0 : term.col - 1;
774 if(direction < 0 && *y > 0) {
775 for(; *y > 0; *y += direction) {
776 if(!(term.line[*y-1][term.col-1].mode
781 } else if(direction > 0 && *y < term.row-1) {
782 for(; *y < term.row; *y += direction) {
783 if(!(term.line[*y][term.col-1].mode
794 getbuttoninfo(XEvent *e) {
796 uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
798 sel.alt = IS_SET(MODE_ALTSCREEN);
800 sel.oe.x = x2col(e->xbutton.x);
801 sel.oe.y = y2row(e->xbutton.y);
804 sel.type = SEL_REGULAR;
805 for(type = 1; type < LEN(selmasks); ++type) {
806 if(match(selmasks[type], state)) {
814 mousereport(XEvent *e) {
815 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
816 button = e->xbutton.button, state = e->xbutton.state,
822 if(e->xbutton.type == MotionNotify) {
823 if(x == ox && y == oy)
825 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
827 /* MOUSE_MOTION: no reporting if no button is pressed */
828 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
831 button = oldbutton + 32;
835 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
842 if(e->xbutton.type == ButtonPress) {
846 } else if(e->xbutton.type == ButtonRelease) {
848 /* MODE_MOUSEX10: no button release reporting */
849 if(IS_SET(MODE_MOUSEX10))
851 if (button == 64 || button == 65)
856 if(!IS_SET(MODE_MOUSEX10)) {
857 button += (state & ShiftMask ? 4 : 0)
858 + (state & Mod4Mask ? 8 : 0)
859 + (state & ControlMask ? 16 : 0);
863 if(IS_SET(MODE_MOUSESGR)) {
864 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
866 e->xbutton.type == ButtonRelease ? 'm' : 'M');
867 } else if(x < 223 && y < 223) {
868 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
869 32+button, 32+x+1, 32+y+1);
882 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
887 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
888 if(e->xbutton.button == mk->b
889 && match(mk->mask, e->xbutton.state)) {
890 ttysend(mk->s, strlen(mk->s));
895 if(e->xbutton.button == Button1) {
896 clock_gettime(CLOCK_MONOTONIC, &now);
898 /* Clear previous selection, logically and visually. */
901 sel.type = SEL_REGULAR;
902 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
903 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
906 * If the user clicks below predefined timeouts specific
907 * snapping behaviour is exposed.
909 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
910 sel.snap = SNAP_LINE;
911 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
912 sel.snap = SNAP_WORD;
919 * Draw selection, unless it's regular and we don't want to
920 * make clicks visible
924 tsetdirt(sel.nb.y, sel.ne.y);
926 sel.tclick2 = sel.tclick1;
934 int y, bufsize, size, lastx, linelen;
940 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
941 ptr = str = xmalloc(bufsize);
943 /* append every set & selected glyph to the selection */
944 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
945 linelen = tlinelen(y);
947 if(sel.type == SEL_RECTANGULAR) {
948 gp = &term.line[y][sel.nb.x];
951 gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
952 lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
954 last = &term.line[y][MIN(lastx, linelen-1)];
955 while(last >= gp && last->c[0] == ' ')
958 for( ; gp <= last; ++gp) {
959 if(gp->mode & ATTR_WDUMMY)
962 size = utf8len(gp->c);
963 memcpy(ptr, gp->c, size);
968 * Copy and pasting of line endings is inconsistent
969 * in the inconsistent terminal and GUI world.
970 * The best solution seems like to produce '\n' when
971 * something is copied from st and convert '\n' to
972 * '\r', when something to be pasted is received by
974 * FIXME: Fix the computer world.
976 if((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP))
989 selnotify(XEvent *e) {
990 ulong nitems, ofs, rem;
992 uchar *data, *last, *repl;
994 XSelectionEvent *xsev;
997 xsev = (XSelectionEvent *)e;
999 if(XGetWindowProperty(xw.dpy, xw.win, xsev->property, ofs,
1000 BUFSIZ/4, False, AnyPropertyType,
1001 &type, &format, &nitems, &rem,
1003 fprintf(stderr, "Clipboard allocation failed\n");
1008 * As seen in getsel:
1009 * Line endings are inconsistent in the terminal and GUI world
1010 * copy and pasting. When receiving some selection data,
1011 * replace all '\n' with '\r'.
1012 * FIXME: Fix the computer world.
1015 last = data + nitems * format / 8;
1016 while((repl = memchr(repl, '\n', last - repl))) {
1020 if(IS_SET(MODE_BRCKTPASTE))
1021 ttywrite("\033[200~", 6);
1022 ttysend((char *)data, nitems * format / 8);
1023 if(IS_SET(MODE_BRCKTPASTE))
1024 ttywrite("\033[201~", 6);
1026 /* number of 32-bit chunks returned */
1027 ofs += nitems * format / 32;
1032 selpaste(const Arg *dummy) {
1033 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1034 xw.win, CurrentTime);
1038 clipcopy(const Arg *dummy) {
1041 if(sel.clipboard != NULL)
1042 free(sel.clipboard);
1044 if(sel.primary != NULL) {
1045 sel.clipboard = xstrdup(sel.primary);
1046 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1047 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1052 clippaste(const Arg *dummy) {
1055 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1056 XConvertSelection(xw.dpy, clipboard, sel.xtarget, clipboard,
1057 xw.win, CurrentTime);
1061 selclear(XEvent *e) {
1065 tsetdirt(sel.nb.y, sel.ne.y);
1069 selrequest(XEvent *e) {
1070 XSelectionRequestEvent *xsre;
1071 XSelectionEvent xev;
1072 Atom xa_targets, string, clipboard;
1075 xsre = (XSelectionRequestEvent *) e;
1076 xev.type = SelectionNotify;
1077 xev.requestor = xsre->requestor;
1078 xev.selection = xsre->selection;
1079 xev.target = xsre->target;
1080 xev.time = xsre->time;
1082 xev.property = None;
1084 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1085 if(xsre->target == xa_targets) {
1086 /* respond with the supported type */
1087 string = sel.xtarget;
1088 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1089 XA_ATOM, 32, PropModeReplace,
1090 (uchar *) &string, 1);
1091 xev.property = xsre->property;
1092 } else if(xsre->target == sel.xtarget || xsre->target == XA_STRING) {
1094 * xith XA_STRING non ascii characters may be incorrect in the
1095 * requestor. It is not our problem, use utf8.
1097 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1098 if(xsre->selection == XA_PRIMARY) {
1099 seltext = sel.primary;
1100 } else if(xsre->selection == clipboard) {
1101 seltext = sel.clipboard;
1104 "Unhandled clipboard selection 0x%lx\n",
1108 if(seltext != NULL) {
1109 XChangeProperty(xsre->display, xsre->requestor,
1110 xsre->property, xsre->target,
1112 (uchar *)seltext, strlen(seltext));
1113 xev.property = xsre->property;
1117 /* all done, send a notification to the listener */
1118 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1119 fprintf(stderr, "Error sending SelectionNotify event\n");
1123 xsetsel(char *str) {
1127 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1131 brelease(XEvent *e) {
1132 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1137 if(e->xbutton.button == Button2) {
1139 } else if(e->xbutton.button == Button1) {
1147 tsetdirt(sel.nb.y, sel.ne.y);
1152 bmotion(XEvent *e) {
1153 int oldey, oldex, oldsby, oldsey;
1155 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1170 if(oldey != sel.oe.y || oldex != sel.oe.x)
1171 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1175 die(const char *errstr, ...) {
1178 va_start(ap, errstr);
1179 vfprintf(stderr, errstr, ap);
1186 char **args, *sh, *prog;
1187 const struct passwd *pw;
1188 char buf[sizeof(long) * 8 + 1];
1191 if((pw = getpwuid(getuid())) == NULL) {
1193 die("getpwuid:%s\n", strerror(errno));
1195 die("who are you?\n");
1198 if (!(sh = getenv("SHELL"))) {
1199 sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
1208 args = (opt_cmd) ? opt_cmd : (char *[]) {prog, NULL};
1210 snprintf(buf, sizeof(buf), "%lu", xw.win);
1212 unsetenv("COLUMNS");
1214 unsetenv("TERMCAP");
1215 setenv("LOGNAME", pw->pw_name, 1);
1216 setenv("USER", pw->pw_name, 1);
1217 setenv("SHELL", sh, 1);
1218 setenv("HOME", pw->pw_dir, 1);
1219 setenv("TERM", termname, 1);
1220 setenv("WINDOWID", buf, 1);
1222 signal(SIGCHLD, SIG_DFL);
1223 signal(SIGHUP, SIG_DFL);
1224 signal(SIGINT, SIG_DFL);
1225 signal(SIGQUIT, SIG_DFL);
1226 signal(SIGTERM, SIG_DFL);
1227 signal(SIGALRM, SIG_DFL);
1230 _exit(EXIT_FAILURE);
1237 if(waitpid(pid, &stat, 0) < 0)
1238 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1240 ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
1241 if (ret != EXIT_SUCCESS)
1242 die("child finished with error '%d'\n", stat);
1249 struct winsize w = {term.row, term.col, 0, 0};
1251 /* seems to work fine on linux, openbsd and freebsd */
1252 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1253 die("openpty failed: %s\n", strerror(errno));
1255 switch(pid = fork()) {
1257 die("fork failed\n");
1260 setsid(); /* create a new process group */
1261 dup2(s, STDIN_FILENO);
1262 dup2(s, STDOUT_FILENO);
1263 dup2(s, STDERR_FILENO);
1264 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1265 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1273 signal(SIGCHLD, sigchld);
1275 term.mode |= MODE_PRINT;
1276 iofd = (!strcmp(opt_io, "-")) ?
1278 open(opt_io, O_WRONLY | O_CREAT, 0666);
1280 fprintf(stderr, "Error opening %s:%s\n",
1281 opt_io, strerror(errno));
1290 static char buf[BUFSIZ];
1291 static int buflen = 0;
1294 int charsize; /* size of utf8 char in bytes */
1298 /* append read bytes to unprocessed bytes */
1299 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1300 die("Couldn't read from shell: %s\n", strerror(errno));
1302 /* process every complete utf8 char */
1305 while((charsize = utf8decode(ptr, &unicodep, buflen))) {
1306 utf8encode(unicodep, s, UTF_SIZ);
1312 /* keep any uncomplete utf8 char for the next call */
1313 memmove(buf, ptr, buflen);
1317 ttywrite(const char *s, size_t n) {
1318 if(xwrite(cmdfd, s, n) == -1)
1319 die("write error on tty: %s\n", strerror(errno));
1323 ttysend(char *s, size_t n) {
1325 if(IS_SET(MODE_ECHO))
1333 w.ws_row = term.row;
1334 w.ws_col = term.col;
1335 w.ws_xpixel = xw.tw;
1336 w.ws_ypixel = xw.th;
1337 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1338 fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
1342 tattrset(int attr) {
1345 for(i = 0; i < term.row-1; i++) {
1346 for(j = 0; j < term.col-1; j++) {
1347 if(term.line[i][j].mode & attr)
1356 tsetdirt(int top, int bot) {
1359 LIMIT(top, 0, term.row-1);
1360 LIMIT(bot, 0, term.row-1);
1362 for(i = top; i <= bot; i++)
1367 tsetdirtattr(int attr) {
1370 for(i = 0; i < term.row-1; i++) {
1371 for(j = 0; j < term.col-1; j++) {
1372 if(term.line[i][j].mode & attr) {
1382 tsetdirt(0, term.row-1);
1387 static TCursor c[2];
1388 bool alt = IS_SET(MODE_ALTSCREEN);
1390 if(mode == CURSOR_SAVE) {
1392 } else if(mode == CURSOR_LOAD) {
1394 tmoveto(c[alt].x, c[alt].y);
1402 term.c = (TCursor){{
1406 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1408 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1409 for(i = tabspaces; i < term.col; i += tabspaces)
1412 term.bot = term.row - 1;
1413 term.mode = MODE_WRAP;
1414 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1417 for(i = 0; i < 2; i++) {
1419 tcursor(CURSOR_SAVE);
1420 tclearregion(0, 0, term.col-1, term.row-1);
1426 tnew(int col, int row) {
1427 term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
1436 Line *tmp = term.line;
1438 term.line = term.alt;
1440 term.mode ^= MODE_ALTSCREEN;
1445 tscrolldown(int orig, int n) {
1449 LIMIT(n, 0, term.bot-orig+1);
1451 tsetdirt(orig, term.bot-n);
1452 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1454 for(i = term.bot; i >= orig+n; i--) {
1455 temp = term.line[i];
1456 term.line[i] = term.line[i-n];
1457 term.line[i-n] = temp;
1464 tscrollup(int orig, int n) {
1468 LIMIT(n, 0, term.bot-orig+1);
1470 tclearregion(0, orig, term.col-1, orig+n-1);
1471 tsetdirt(orig+n, term.bot);
1473 for(i = orig; i <= term.bot-n; i++) {
1474 temp = term.line[i];
1475 term.line[i] = term.line[i+n];
1476 term.line[i+n] = temp;
1479 selscroll(orig, -n);
1483 selscroll(int orig, int n) {
1487 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1488 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1492 if(sel.type == SEL_RECTANGULAR) {
1493 if(sel.ob.y < term.top)
1494 sel.ob.y = term.top;
1495 if(sel.oe.y > term.bot)
1496 sel.oe.y = term.bot;
1498 if(sel.ob.y < term.top) {
1499 sel.ob.y = term.top;
1502 if(sel.oe.y > term.bot) {
1503 sel.oe.y = term.bot;
1504 sel.oe.x = term.col;
1512 tnewline(int first_col) {
1516 tscrollup(term.top, 1);
1520 tmoveto(first_col ? 0 : term.c.x, y);
1525 char *p = csiescseq.buf, *np;
1534 csiescseq.buf[csiescseq.len] = '\0';
1535 while(p < csiescseq.buf+csiescseq.len) {
1537 v = strtol(p, &np, 10);
1540 if(v == LONG_MAX || v == LONG_MIN)
1542 csiescseq.arg[csiescseq.narg++] = v;
1544 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1548 csiescseq.mode = *p;
1551 /* for absolute user moves, when decom is set */
1553 tmoveato(int x, int y) {
1554 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1558 tmoveto(int x, int y) {
1561 if(term.c.state & CURSOR_ORIGIN) {
1566 maxy = term.row - 1;
1568 LIMIT(x, 0, term.col-1);
1569 LIMIT(y, miny, maxy);
1570 term.c.state &= ~CURSOR_WRAPNEXT;
1576 tsetchar(char *c, Glyph *attr, int x, int y) {
1577 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1578 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1579 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1580 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1581 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1582 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1583 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1584 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1585 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1589 * The table is proudly stolen from rxvt.
1591 if(term.trantbl[term.charset] == CS_GRAPHIC0) {
1592 if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
1593 c = vt100_0[c[0] - 0x41];
1597 if(term.line[y][x].mode & ATTR_WIDE) {
1598 if(x+1 < term.col) {
1599 term.line[y][x+1].c[0] = ' ';
1600 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1602 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1603 term.line[y][x-1].c[0] = ' ';
1604 term.line[y][x-1].mode &= ~ATTR_WIDE;
1608 term.line[y][x] = *attr;
1609 memcpy(term.line[y][x].c, c, UTF_SIZ);
1613 tclearregion(int x1, int y1, int x2, int y2) {
1618 temp = x1, x1 = x2, x2 = temp;
1620 temp = y1, y1 = y2, y2 = temp;
1622 LIMIT(x1, 0, term.col-1);
1623 LIMIT(x2, 0, term.col-1);
1624 LIMIT(y1, 0, term.row-1);
1625 LIMIT(y2, 0, term.row-1);
1627 for(y = y1; y <= y2; y++) {
1629 for(x = x1; x <= x2; x++) {
1630 gp = &term.line[y][x];
1633 gp->fg = term.c.attr.fg;
1634 gp->bg = term.c.attr.bg;
1636 memcpy(gp->c, " ", 2);
1642 tdeletechar(int n) {
1646 LIMIT(n, 0, term.col - term.c.x);
1650 size = term.col - src;
1651 line = term.line[term.c.y];
1653 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1654 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1658 tinsertblank(int n) {
1662 LIMIT(n, 0, term.col - term.c.x);
1666 size = term.col - dst;
1667 line = term.line[term.c.y];
1669 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1670 tclearregion(src, term.c.y, dst - 1, term.c.y);
1674 tinsertblankline(int n) {
1675 if(BETWEEN(term.c.y, term.top, term.bot))
1676 tscrolldown(term.c.y, n);
1680 tdeleteline(int n) {
1681 if(BETWEEN(term.c.y, term.top, term.bot))
1682 tscrollup(term.c.y, n);
1686 tdefcolor(int *attr, int *npar, int l) {
1690 switch (attr[*npar + 1]) {
1691 case 2: /* direct color in RGB space */
1692 if (*npar + 4 >= l) {
1694 "erresc(38): Incorrect number of parameters (%d)\n",
1698 r = attr[*npar + 2];
1699 g = attr[*npar + 3];
1700 b = attr[*npar + 4];
1702 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1703 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1706 idx = TRUECOLOR(r, g, b);
1708 case 5: /* indexed color */
1709 if (*npar + 2 >= l) {
1711 "erresc(38): Incorrect number of parameters (%d)\n",
1716 if(!BETWEEN(attr[*npar], 0, 255))
1717 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1721 case 0: /* implemented defined (only foreground) */
1722 case 1: /* transparent */
1723 case 3: /* direct color in CMY space */
1724 case 4: /* direct color in CMYK space */
1727 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1735 tsetattr(int *attr, int l) {
1739 for(i = 0; i < l; i++) {
1742 term.c.attr.mode &= ~(
1751 term.c.attr.fg = defaultfg;
1752 term.c.attr.bg = defaultbg;
1755 term.c.attr.mode |= ATTR_BOLD;
1758 term.c.attr.mode |= ATTR_FAINT;
1761 term.c.attr.mode |= ATTR_ITALIC;
1764 term.c.attr.mode |= ATTR_UNDERLINE;
1766 case 5: /* slow blink */
1768 case 6: /* rapid blink */
1769 term.c.attr.mode |= ATTR_BLINK;
1772 term.c.attr.mode |= ATTR_REVERSE;
1775 term.c.attr.mode |= ATTR_INVISIBLE;
1778 term.c.attr.mode |= ATTR_STRUCK;
1781 term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
1784 term.c.attr.mode &= ~ATTR_ITALIC;
1787 term.c.attr.mode &= ~ATTR_UNDERLINE;
1790 term.c.attr.mode &= ~ATTR_BLINK;
1793 term.c.attr.mode &= ~ATTR_REVERSE;
1796 term.c.attr.mode &= ~ATTR_INVISIBLE;
1799 term.c.attr.mode &= ~ATTR_STRUCK;
1802 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1803 term.c.attr.fg = idx;
1806 term.c.attr.fg = defaultfg;
1809 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1810 term.c.attr.bg = idx;
1813 term.c.attr.bg = defaultbg;
1816 if(BETWEEN(attr[i], 30, 37)) {
1817 term.c.attr.fg = attr[i] - 30;
1818 } else if(BETWEEN(attr[i], 40, 47)) {
1819 term.c.attr.bg = attr[i] - 40;
1820 } else if(BETWEEN(attr[i], 90, 97)) {
1821 term.c.attr.fg = attr[i] - 90 + 8;
1822 } else if(BETWEEN(attr[i], 100, 107)) {
1823 term.c.attr.bg = attr[i] - 100 + 8;
1826 "erresc(default): gfx attr %d unknown\n",
1827 attr[i]), csidump();
1835 tsetscroll(int t, int b) {
1838 LIMIT(t, 0, term.row-1);
1839 LIMIT(b, 0, term.row-1);
1850 tsetmode(bool priv, bool set, int *args, int narg) {
1854 for(lim = args + narg; args < lim; ++args) {
1857 case 1: /* DECCKM -- Cursor key */
1858 MODBIT(term.mode, set, MODE_APPCURSOR);
1860 case 5: /* DECSCNM -- Reverse video */
1862 MODBIT(term.mode, set, MODE_REVERSE);
1863 if(mode != term.mode)
1866 case 6: /* DECOM -- Origin */
1867 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1870 case 7: /* DECAWM -- Auto wrap */
1871 MODBIT(term.mode, set, MODE_WRAP);
1873 case 0: /* Error (IGNORED) */
1874 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1875 case 3: /* DECCOLM -- Column (IGNORED) */
1876 case 4: /* DECSCLM -- Scroll (IGNORED) */
1877 case 8: /* DECARM -- Auto repeat (IGNORED) */
1878 case 18: /* DECPFF -- Printer feed (IGNORED) */
1879 case 19: /* DECPEX -- Printer extent (IGNORED) */
1880 case 42: /* DECNRCM -- National characters (IGNORED) */
1881 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1883 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1884 MODBIT(term.mode, !set, MODE_HIDE);
1886 case 9: /* X10 mouse compatibility mode */
1887 xsetpointermotion(0);
1888 MODBIT(term.mode, 0, MODE_MOUSE);
1889 MODBIT(term.mode, set, MODE_MOUSEX10);
1891 case 1000: /* 1000: report button press */
1892 xsetpointermotion(0);
1893 MODBIT(term.mode, 0, MODE_MOUSE);
1894 MODBIT(term.mode, set, MODE_MOUSEBTN);
1896 case 1002: /* 1002: report motion on button press */
1897 xsetpointermotion(0);
1898 MODBIT(term.mode, 0, MODE_MOUSE);
1899 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1901 case 1003: /* 1003: enable all mouse motions */
1902 xsetpointermotion(set);
1903 MODBIT(term.mode, 0, MODE_MOUSE);
1904 MODBIT(term.mode, set, MODE_MOUSEMANY);
1906 case 1004: /* 1004: send focus events to tty */
1907 MODBIT(term.mode, set, MODE_FOCUS);
1909 case 1006: /* 1006: extended reporting mode */
1910 MODBIT(term.mode, set, MODE_MOUSESGR);
1913 MODBIT(term.mode, set, MODE_8BIT);
1915 case 1049: /* swap screen & set/restore cursor as xterm */
1916 if (!allowaltscreen)
1918 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1920 case 47: /* swap screen */
1922 if (!allowaltscreen)
1924 alt = IS_SET(MODE_ALTSCREEN);
1926 tclearregion(0, 0, term.col-1,
1929 if(set ^ alt) /* set is always 1 or 0 */
1935 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1937 case 2004: /* 2004: bracketed paste mode */
1938 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1940 /* Not implemented mouse modes. See comments there. */
1941 case 1001: /* mouse highlight mode; can hang the
1942 terminal by design when implemented. */
1943 case 1005: /* UTF-8 mouse mode; will confuse
1944 applications not supporting UTF-8
1946 case 1015: /* urxvt mangled mouse mode; incompatible
1947 and can be mistaken for other control
1951 "erresc: unknown private set/reset mode %d\n",
1957 case 0: /* Error (IGNORED) */
1959 case 2: /* KAM -- keyboard action */
1960 MODBIT(term.mode, set, MODE_KBDLOCK);
1962 case 4: /* IRM -- Insertion-replacement */
1963 MODBIT(term.mode, set, MODE_INSERT);
1965 case 12: /* SRM -- Send/Receive */
1966 MODBIT(term.mode, !set, MODE_ECHO);
1968 case 20: /* LNM -- Linefeed/new line */
1969 MODBIT(term.mode, set, MODE_CRLF);
1973 "erresc: unknown set/reset mode %d\n",
1986 switch(csiescseq.mode) {
1989 fprintf(stderr, "erresc: unknown csi ");
1993 case '@': /* ICH -- Insert <n> blank char */
1994 DEFAULT(csiescseq.arg[0], 1);
1995 tinsertblank(csiescseq.arg[0]);
1997 case 'A': /* CUU -- Cursor <n> Up */
1998 DEFAULT(csiescseq.arg[0], 1);
1999 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
2001 case 'B': /* CUD -- Cursor <n> Down */
2002 case 'e': /* VPR --Cursor <n> Down */
2003 DEFAULT(csiescseq.arg[0], 1);
2004 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
2006 case 'i': /* MC -- Media Copy */
2007 switch(csiescseq.arg[0]) {
2012 tdumpline(term.c.y);
2018 term.mode &= ~MODE_PRINT;
2021 term.mode |= MODE_PRINT;
2025 case 'c': /* DA -- Device Attributes */
2026 if(csiescseq.arg[0] == 0)
2027 ttywrite(vtiden, sizeof(vtiden) - 1);
2029 case 'C': /* CUF -- Cursor <n> Forward */
2030 case 'a': /* HPR -- Cursor <n> Forward */
2031 DEFAULT(csiescseq.arg[0], 1);
2032 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
2034 case 'D': /* CUB -- Cursor <n> Backward */
2035 DEFAULT(csiescseq.arg[0], 1);
2036 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
2038 case 'E': /* CNL -- Cursor <n> Down and first col */
2039 DEFAULT(csiescseq.arg[0], 1);
2040 tmoveto(0, term.c.y+csiescseq.arg[0]);
2042 case 'F': /* CPL -- Cursor <n> Up and first col */
2043 DEFAULT(csiescseq.arg[0], 1);
2044 tmoveto(0, term.c.y-csiescseq.arg[0]);
2046 case 'g': /* TBC -- Tabulation clear */
2047 switch(csiescseq.arg[0]) {
2048 case 0: /* clear current tab stop */
2049 term.tabs[term.c.x] = 0;
2051 case 3: /* clear all the tabs */
2052 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
2058 case 'G': /* CHA -- Move to <col> */
2060 DEFAULT(csiescseq.arg[0], 1);
2061 tmoveto(csiescseq.arg[0]-1, term.c.y);
2063 case 'H': /* CUP -- Move to <row> <col> */
2065 DEFAULT(csiescseq.arg[0], 1);
2066 DEFAULT(csiescseq.arg[1], 1);
2067 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
2069 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
2070 DEFAULT(csiescseq.arg[0], 1);
2071 tputtab(csiescseq.arg[0]);
2073 case 'J': /* ED -- Clear screen */
2075 switch(csiescseq.arg[0]) {
2077 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2078 if(term.c.y < term.row-1) {
2079 tclearregion(0, term.c.y+1, term.col-1,
2085 tclearregion(0, 0, term.col-1, term.c.y-1);
2086 tclearregion(0, term.c.y, term.c.x, term.c.y);
2089 tclearregion(0, 0, term.col-1, term.row-1);
2095 case 'K': /* EL -- Clear line */
2096 switch(csiescseq.arg[0]) {
2098 tclearregion(term.c.x, term.c.y, term.col-1,
2102 tclearregion(0, term.c.y, term.c.x, term.c.y);
2105 tclearregion(0, term.c.y, term.col-1, term.c.y);
2109 case 'S': /* SU -- Scroll <n> line up */
2110 DEFAULT(csiescseq.arg[0], 1);
2111 tscrollup(term.top, csiescseq.arg[0]);
2113 case 'T': /* SD -- Scroll <n> line down */
2114 DEFAULT(csiescseq.arg[0], 1);
2115 tscrolldown(term.top, csiescseq.arg[0]);
2117 case 'L': /* IL -- Insert <n> blank lines */
2118 DEFAULT(csiescseq.arg[0], 1);
2119 tinsertblankline(csiescseq.arg[0]);
2121 case 'l': /* RM -- Reset Mode */
2122 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2124 case 'M': /* DL -- Delete <n> lines */
2125 DEFAULT(csiescseq.arg[0], 1);
2126 tdeleteline(csiescseq.arg[0]);
2128 case 'X': /* ECH -- Erase <n> char */
2129 DEFAULT(csiescseq.arg[0], 1);
2130 tclearregion(term.c.x, term.c.y,
2131 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2133 case 'P': /* DCH -- Delete <n> char */
2134 DEFAULT(csiescseq.arg[0], 1);
2135 tdeletechar(csiescseq.arg[0]);
2137 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2138 DEFAULT(csiescseq.arg[0], 1);
2139 tputtab(-csiescseq.arg[0]);
2141 case 'd': /* VPA -- Move to <row> */
2142 DEFAULT(csiescseq.arg[0], 1);
2143 tmoveato(term.c.x, csiescseq.arg[0]-1);
2145 case 'h': /* SM -- Set terminal mode */
2146 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2148 case 'm': /* SGR -- Terminal attribute (color) */
2149 tsetattr(csiescseq.arg, csiescseq.narg);
2151 case 'n': /* DSR – Device Status Report (cursor position) */
2152 if (csiescseq.arg[0] == 6) {
2153 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2154 term.c.y+1, term.c.x+1);
2158 case 'r': /* DECSTBM -- Set Scrolling Region */
2159 if(csiescseq.priv) {
2162 DEFAULT(csiescseq.arg[0], 1);
2163 DEFAULT(csiescseq.arg[1], term.row);
2164 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2168 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2169 tcursor(CURSOR_SAVE);
2171 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2172 tcursor(CURSOR_LOAD);
2183 for(i = 0; i < csiescseq.len; i++) {
2184 c = csiescseq.buf[i] & 0xff;
2187 } else if(c == '\n') {
2189 } else if(c == '\r') {
2191 } else if(c == 0x1b) {
2194 printf("(%02x)", c);
2202 memset(&csiescseq, 0, sizeof(csiescseq));
2210 term.esc &= ~(ESC_STR_END|ESC_STR);
2212 narg = strescseq.narg;
2213 par = atoi(strescseq.args[0]);
2215 switch(strescseq.type) {
2216 case ']': /* OSC -- Operating System Command */
2222 xsettitle(strescseq.args[1]);
2224 case 4: /* color set */
2227 p = strescseq.args[2];
2229 case 104: /* color reset, here p = NULL */
2230 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2231 if(xsetcolorname(j, p)) {
2232 fprintf(stderr, "erresc: invalid color %s\n", p);
2235 * TODO if defaultbg color is changed, borders
2243 case 'k': /* old title set compatibility */
2244 xsettitle(strescseq.args[0]);
2246 case 'P': /* DCS -- Device Control String */
2247 case '_': /* APC -- Application Program Command */
2248 case '^': /* PM -- Privacy Message */
2252 fprintf(stderr, "erresc: unknown str ");
2258 char *p = strescseq.buf;
2261 strescseq.buf[strescseq.len] = '\0';
2262 while(p && strescseq.narg < STR_ARG_SIZ)
2263 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2271 printf("ESC%c", strescseq.type);
2272 for(i = 0; i < strescseq.len; i++) {
2273 c = strescseq.buf[i] & 0xff;
2276 } else if(isprint(c)) {
2278 } else if(c == '\n') {
2280 } else if(c == '\r') {
2282 } else if(c == 0x1b) {
2285 printf("(%02x)", c);
2293 memset(&strescseq, 0, sizeof(strescseq));
2297 tprinter(char *s, size_t len) {
2298 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2299 fprintf(stderr, "Error writing in %s:%s\n",
2300 opt_io, strerror(errno));
2307 toggleprinter(const Arg *arg) {
2308 term.mode ^= MODE_PRINT;
2312 printscreen(const Arg *arg) {
2317 printsel(const Arg *arg) {
2325 if((ptr = getsel())) {
2326 tprinter(ptr, strlen(ptr));
2335 bp = &term.line[n][0];
2336 end = &bp[MIN(tlinelen(n), term.col) - 1];
2337 if(bp != end || bp->c[0] != ' ') {
2338 for( ;bp <= end; ++bp)
2339 tprinter(bp->c, utf8len(bp->c));
2348 for(i = 0; i < term.row; ++i)
2357 while(x < term.col && n--)
2358 for(++x; x < term.col && !term.tabs[x]; ++x)
2362 for(--x; x > 0 && !term.tabs[x]; --x)
2365 tmoveto(x, term.c.y);
2369 techo(char *buf, int len) {
2370 for(; len > 0; buf++, len--) {
2373 if(ISCONTROL((uchar) c)) { /* control code */
2378 } else if(c != '\n' && c != '\r' && c != '\t') {
2392 tdeftran(char ascii) {
2393 static char cs[] = "0B";
2394 static int vcs[] = {CS_GRAPHIC0, CS_USA};
2397 if((p = strchr(cs, ascii)) == NULL) {
2398 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2400 term.trantbl[term.icharset] = vcs[p - cs];
2406 static char E[UTF_SIZ] = "E";
2409 if(c == '8') { /* DEC screen alignment test. */
2410 for(x = 0; x < term.col; ++x) {
2411 for(y = 0; y < term.row; ++y)
2412 tsetchar(E, &term.c.attr, x, y);
2418 tstrsequence(uchar c) {
2421 case 0x90: /* DCS -- Device Control String */
2424 case 0x9f: /* APC -- Application Program Command */
2427 case 0x9e: /* PM -- Privacy Message */
2430 case 0x9d: /* OSC -- Operating System Command */
2437 term.esc |= ESC_STR;
2442 tcontrolcode(uchar ascii) {
2443 static char question[UTF_SIZ] = "?";
2450 tmoveto(term.c.x-1, term.c.y);
2453 tmoveto(0, term.c.y);
2458 /* go to first col if the mode is set */
2459 tnewline(IS_SET(MODE_CRLF));
2461 case '\a': /* BEL */
2462 if(term.esc & ESC_STR_END) {
2463 /* backwards compatibility to xterm */
2466 if(!(xw.state & WIN_FOCUSED))
2469 XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
2472 case '\033': /* ESC */
2474 term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
2475 term.esc |= ESC_START;
2477 case '\016': /* SO (LS1 -- Locking shift 1) */
2478 case '\017': /* SI (LS0 -- Locking shift 0) */
2479 term.charset = 1 - (ascii - '\016');
2481 case '\032': /* SUB */
2482 tsetchar(question, &term.c.attr, term.c.x, term.c.y);
2483 case '\030': /* CAN */
2486 case '\005': /* ENQ (IGNORED) */
2487 case '\000': /* NUL (IGNORED) */
2488 case '\021': /* XON (IGNORED) */
2489 case '\023': /* XOFF (IGNORED) */
2490 case 0177: /* DEL (IGNORED) */
2492 case 0x84: /* TODO: IND */
2494 case 0x85: /* NEL -- Next line */
2495 tnewline(1); /* always go to first col */
2497 case 0x88: /* HTS -- Horizontal tab stop */
2498 term.tabs[term.c.x] = 1;
2500 case 0x8d: /* TODO: RI */
2501 case 0x8e: /* TODO: SS2 */
2502 case 0x8f: /* TODO: SS3 */
2503 case 0x98: /* TODO: SOS */
2505 case 0x9a: /* DECID -- Identify Terminal */
2506 ttywrite(vtiden, sizeof(vtiden) - 1);
2508 case 0x9b: /* TODO: CSI */
2509 case 0x9c: /* TODO: ST */
2511 case 0x90: /* DCS -- Device Control String */
2512 case 0x9f: /* APC -- Application Program Command */
2513 case 0x9e: /* PM -- Privacy Message */
2514 case 0x9d: /* OSC -- Operating System Command */
2515 tstrsequence(ascii);
2518 /* only CAN, SUB, \a and C1 chars interrupt a sequence */
2519 term.esc &= ~(ESC_STR_END|ESC_STR);
2524 * returns 1 when the sequence is finished and it hasn't to read
2525 * more characters for this sequence, otherwise 0
2528 eschandle(uchar ascii) {
2531 term.esc |= ESC_CSI;
2534 term.esc |= ESC_TEST;
2536 case 'P': /* DCS -- Device Control String */
2537 case '_': /* APC -- Application Program Command */
2538 case '^': /* PM -- Privacy Message */
2539 case ']': /* OSC -- Operating System Command */
2540 case 'k': /* old title set compatibility */
2541 tstrsequence(ascii);
2543 case 'n': /* LS2 -- Locking shift 2 */
2544 case 'o': /* LS3 -- Locking shift 3 */
2545 term.charset = 2 + (ascii - 'n');
2547 case '(': /* GZD4 -- set primary charset G0 */
2548 case ')': /* G1D4 -- set secondary charset G1 */
2549 case '*': /* G2D4 -- set tertiary charset G2 */
2550 case '+': /* G3D4 -- set quaternary charset G3 */
2551 term.icharset = ascii - '(';
2552 term.esc |= ESC_ALTCHARSET;
2554 case 'D': /* IND -- Linefeed */
2555 if(term.c.y == term.bot) {
2556 tscrollup(term.top, 1);
2558 tmoveto(term.c.x, term.c.y+1);
2561 case 'E': /* NEL -- Next line */
2562 tnewline(1); /* always go to first col */
2564 case 'H': /* HTS -- Horizontal tab stop */
2565 term.tabs[term.c.x] = 1;
2567 case 'M': /* RI -- Reverse index */
2568 if(term.c.y == term.top) {
2569 tscrolldown(term.top, 1);
2571 tmoveto(term.c.x, term.c.y-1);
2574 case 'Z': /* DECID -- Identify Terminal */
2575 ttywrite(vtiden, sizeof(vtiden) - 1);
2577 case 'c': /* RIS -- Reset to inital state */
2582 case '=': /* DECPAM -- Application keypad */
2583 term.mode |= MODE_APPKEYPAD;
2585 case '>': /* DECPNM -- Normal keypad */
2586 term.mode &= ~MODE_APPKEYPAD;
2588 case '7': /* DECSC -- Save Cursor */
2589 tcursor(CURSOR_SAVE);
2591 case '8': /* DECRC -- Restore Cursor */
2592 tcursor(CURSOR_LOAD);
2594 case '\\': /* ST -- String Terminator */
2595 if(term.esc & ESC_STR_END)
2599 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2600 (uchar) ascii, isprint(ascii)? ascii:'.');
2607 tputc(char *c, int len) {
2616 unicodep = ascii = *c;
2618 utf8decode(c, &unicodep, UTF_SIZ);
2619 if ((width = wcwidth(unicodep)) == -1) {
2620 c = "\357\277\275"; /* UTF_INVALID */
2623 control = ISCONTROLC1(unicodep);
2627 if(IS_SET(MODE_PRINT))
2629 control = ISCONTROL(unicodep);
2632 * STR sequence must be checked before anything else
2633 * because it uses all following characters until it
2634 * receives a ESC, a SUB, a ST or any other C1 control
2637 if(term.esc & ESC_STR) {
2639 (ascii == '\a' || ascii == 030 ||
2640 ascii == 032 || ascii == 033 ||
2641 ISCONTROLC1(unicodep))) {
2642 term.esc &= ~(ESC_START|ESC_STR);
2643 term.esc |= ESC_STR_END;
2644 } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2645 memmove(&strescseq.buf[strescseq.len], c, len);
2646 strescseq.len += len;
2650 * Here is a bug in terminals. If the user never sends
2651 * some code to stop the str or esc command, then st
2652 * will stop responding. But this is better than
2653 * silently failing with unknown characters. At least
2654 * then users will report back.
2656 * In the case users ever get fixed, here is the code:
2667 * Actions of control codes must be performed as soon they arrive
2668 * because they can be embedded inside a control sequence, and
2669 * they must not cause conflicts with sequences.
2672 tcontrolcode(ascii);
2674 * control codes are not shown ever
2677 } else if(term.esc & ESC_START) {
2678 if(term.esc & ESC_CSI) {
2679 csiescseq.buf[csiescseq.len++] = ascii;
2680 if(BETWEEN(ascii, 0x40, 0x7E)
2681 || csiescseq.len >= \
2682 sizeof(csiescseq.buf)-1) {
2688 } else if(term.esc & ESC_ALTCHARSET) {
2690 } else if(term.esc & ESC_TEST) {
2693 if (!eschandle(ascii))
2695 /* sequence already finished */
2699 * All characters which form part of a sequence are not
2704 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2707 gp = &term.line[term.c.y][term.c.x];
2708 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2709 gp->mode |= ATTR_WRAP;
2711 gp = &term.line[term.c.y][term.c.x];
2714 if(IS_SET(MODE_INSERT) && term.c.x+width < term.col)
2715 memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
2717 if(term.c.x+width > term.col) {
2719 gp = &term.line[term.c.y][term.c.x];
2722 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2725 gp->mode |= ATTR_WIDE;
2726 if(term.c.x+1 < term.col) {
2728 gp[1].mode = ATTR_WDUMMY;
2731 if(term.c.x+width < term.col) {
2732 tmoveto(term.c.x+width, term.c.y);
2734 term.c.state |= CURSOR_WRAPNEXT;
2739 tresize(int col, int row) {
2741 int minrow = MIN(row, term.row);
2742 int mincol = MIN(col, term.col);
2743 int slide = term.c.y - row + 1;
2747 if(col < 1 || row < 1) {
2749 "tresize: error resizing to %dx%d\n", col, row);
2753 /* free unneeded rows */
2757 * slide screen to keep cursor where we expect it -
2758 * tscrollup would work here, but we can optimize to
2759 * memmove because we're freeing the earlier lines
2761 for(/* i = 0 */; i < slide; i++) {
2765 memmove(term.line, term.line + slide, row * sizeof(Line));
2766 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2768 for(i += row; i < term.row; i++) {
2773 /* resize to new height */
2774 term.line = xrealloc(term.line, row * sizeof(Line));
2775 term.alt = xrealloc(term.alt, row * sizeof(Line));
2776 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2777 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2779 /* resize each row to new width, zero-pad if needed */
2780 for(i = 0; i < minrow; i++) {
2781 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2782 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2785 /* allocate any new rows */
2786 for(/* i == minrow */; i < row; i++) {
2787 term.line[i] = xmalloc(col * sizeof(Glyph));
2788 term.alt[i] = xmalloc(col * sizeof(Glyph));
2790 if(col > term.col) {
2791 bp = term.tabs + term.col;
2793 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2794 while(--bp > term.tabs && !*bp)
2796 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2799 /* update terminal size */
2802 /* reset scrolling region */
2803 tsetscroll(0, row-1);
2804 /* make use of the LIMIT in tmoveto */
2805 tmoveto(term.c.x, term.c.y);
2806 /* Clearing both screens (it makes dirty all lines) */
2808 for(i = 0; i < 2; i++) {
2809 if(mincol < col && 0 < minrow) {
2810 tclearregion(mincol, 0, col - 1, minrow - 1);
2812 if(0 < col && minrow < row) {
2813 tclearregion(0, minrow, col - 1, row - 1);
2816 tcursor(CURSOR_LOAD);
2822 xresize(int col, int row) {
2823 xw.tw = MAX(1, col * xw.cw);
2824 xw.th = MAX(1, row * xw.ch);
2826 XFreePixmap(xw.dpy, xw.buf);
2827 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2828 DefaultDepth(xw.dpy, xw.scr));
2829 XftDrawChange(xw.draw, xw.buf);
2830 xclear(0, 0, xw.w, xw.h);
2833 static inline ushort
2834 sixd_to_16bit(int x) {
2835 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2841 XRenderColor color = { .alpha = 0xffff };
2846 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2847 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2850 /* load colors [0-15] and [256-LEN(colorname)] (config.h) */
2851 for(i = 0; i < LEN(colorname); i++) {
2854 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2855 die("Could not allocate color '%s'\n", colorname[i]);
2859 /* load colors [16-231] ; same colors as xterm */
2860 for(i = 16; i < 6*6*6+16; i++) {
2861 color.red = sixd_to_16bit( ((i-16)/36)%6 );
2862 color.green = sixd_to_16bit( ((i-16)/6) %6 );
2863 color.blue = sixd_to_16bit( ((i-16)/1) %6 );
2864 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2865 die("Could not allocate color %d\n", i);
2868 /* load colors [232-255] ; grayscale */
2869 for(; i < 256; i++) {
2870 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
2871 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2872 die("Could not allocate color %d\n", i);
2878 xsetcolorname(int x, const char *name) {
2879 XRenderColor color = { .alpha = 0xffff };
2882 if(!BETWEEN(x, 0, LEN(colorname)))
2886 if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
2887 color.red = sixd_to_16bit( ((x-16)/36)%6 );
2888 color.green = sixd_to_16bit( ((x-16)/6) %6 );
2889 color.blue = sixd_to_16bit( ((x-16)/1) %6 );
2890 if(!XftColorAllocValue(xw.dpy, xw.vis,
2891 xw.cmap, &color, &ncolor)) {
2895 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2898 } else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
2899 color.red = color.green = color.blue = \
2900 0x0808 + 0x0a0a * (x - (16 + 216));
2901 if(!XftColorAllocValue(xw.dpy, xw.vis,
2902 xw.cmap, &color, &ncolor)) {
2906 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2909 } else { /* system colors */
2910 name = colorname[x];
2913 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
2916 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2922 xtermclear(int col1, int row1, int col2, int row2) {
2923 XftDrawRect(xw.draw,
2924 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2925 borderpx + col1 * xw.cw,
2926 borderpx + row1 * xw.ch,
2927 (col2-col1+1) * xw.cw,
2928 (row2-row1+1) * xw.ch);
2932 * Absolute coordinates.
2935 xclear(int x1, int y1, int x2, int y2) {
2936 XftDrawRect(xw.draw,
2937 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2938 x1, y1, x2-x1, y2-y1);
2943 XClassHint class = {opt_class ? opt_class : termname, termname};
2944 XWMHints wm = {.flags = InputHint, .input = 1};
2945 XSizeHints *sizeh = NULL;
2947 sizeh = XAllocSizeHints();
2949 sizeh->flags = PSize | PResizeInc | PBaseSize;
2950 sizeh->height = xw.h;
2951 sizeh->width = xw.w;
2952 sizeh->height_inc = xw.ch;
2953 sizeh->width_inc = xw.cw;
2954 sizeh->base_height = 2 * borderpx;
2955 sizeh->base_width = 2 * borderpx;
2956 if(xw.isfixed == True) {
2957 sizeh->flags |= PMaxSize | PMinSize;
2958 sizeh->min_width = sizeh->max_width = xw.w;
2959 sizeh->min_height = sizeh->max_height = xw.h;
2961 if(xw.gm & (XValue|YValue)) {
2962 sizeh->flags |= USPosition | PWinGravity;
2965 sizeh->win_gravity = xgeommasktogravity(xw.gm);
2968 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2974 xgeommasktogravity(int mask) {
2975 switch(mask & (XNegative|YNegative)) {
2977 return NorthWestGravity;
2979 return NorthEastGravity;
2981 return SouthWestGravity;
2983 return SouthEastGravity;
2987 xloadfont(Font *f, FcPattern *pattern) {
2991 match = FcFontMatch(NULL, pattern, &result);
2995 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2996 FcPatternDestroy(match);
3001 f->pattern = FcPatternDuplicate(pattern);
3003 f->ascent = f->match->ascent;
3004 f->descent = f->match->descent;
3006 f->rbearing = f->match->max_advance_width;
3008 f->height = f->ascent + f->descent;
3009 f->width = f->lbearing + f->rbearing;
3015 xloadfonts(char *fontstr, double fontsize) {
3017 FcResult r_sz, r_psz;
3021 if(fontstr[0] == '-') {
3022 pattern = XftXlfdParse(fontstr, False, False);
3024 pattern = FcNameParse((FcChar8 *)fontstr);
3028 die("st: can't open font %s\n", fontstr);
3031 FcPatternDel(pattern, FC_PIXEL_SIZE);
3032 FcPatternDel(pattern, FC_SIZE);
3033 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
3034 usedfontsize = fontsize;
3036 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
3037 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
3038 if(r_psz == FcResultMatch) {
3039 usedfontsize = fontval;
3040 } else if(r_sz == FcResultMatch) {
3044 * Default font size is 12, if none given. This is to
3045 * have a known usedfontsize value.
3047 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
3050 defaultfontsize = usedfontsize;
3053 FcConfigSubstitute(0, pattern, FcMatchPattern);
3054 FcDefaultSubstitute(pattern);
3056 if(xloadfont(&dc.font, pattern))
3057 die("st: can't open font %s\n", fontstr);
3059 if(usedfontsize < 0) {
3060 FcPatternGetDouble(dc.font.match->pattern,
3061 FC_PIXEL_SIZE, 0, &fontval);
3062 usedfontsize = fontval;
3064 defaultfontsize = fontval;
3067 /* Setting character width and height. */
3068 xw.cw = ceilf(dc.font.width * cwscale);
3069 xw.ch = ceilf(dc.font.height * chscale);
3071 FcPatternDel(pattern, FC_SLANT);
3072 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
3073 if(xloadfont(&dc.ifont, pattern))
3074 die("st: can't open font %s\n", fontstr);
3076 FcPatternDel(pattern, FC_WEIGHT);
3077 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
3078 if(xloadfont(&dc.ibfont, pattern))
3079 die("st: can't open font %s\n", fontstr);
3081 FcPatternDel(pattern, FC_SLANT);
3082 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
3083 if(xloadfont(&dc.bfont, pattern))
3084 die("st: can't open font %s\n", fontstr);
3086 FcPatternDestroy(pattern);
3090 xloadfontset(Font *f) {
3093 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
3099 xunloadfont(Font *f) {
3100 XftFontClose(xw.dpy, f->match);
3101 FcPatternDestroy(f->pattern);
3103 FcFontSetDestroy(f->set);
3107 xunloadfonts(void) {
3108 /* Free the loaded fonts in the font cache. */
3110 XftFontClose(xw.dpy, frc[--frclen].font);
3112 xunloadfont(&dc.font);
3113 xunloadfont(&dc.bfont);
3114 xunloadfont(&dc.ifont);
3115 xunloadfont(&dc.ibfont);
3119 xzoom(const Arg *arg) {
3122 larg.i = usedfontsize + arg->i;
3127 xzoomabs(const Arg *arg) {
3129 xloadfonts(usedfont, arg->i);
3136 xzoomreset(const Arg *arg) {
3139 if(defaultfontsize > 0) {
3140 larg.i = defaultfontsize;
3150 pid_t thispid = getpid();
3152 if(!(xw.dpy = XOpenDisplay(NULL)))
3153 die("Can't open display\n");
3154 xw.scr = XDefaultScreen(xw.dpy);
3155 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3159 die("Could not init fontconfig.\n");
3161 usedfont = (opt_font == NULL)? font : opt_font;
3162 xloadfonts(usedfont, 0);
3165 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3168 /* adjust fixed window geometry */
3169 xw.w = 2 * borderpx + term.col * xw.cw;
3170 xw.h = 2 * borderpx + term.row * xw.ch;
3171 if(xw.gm & XNegative)
3172 xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
3173 if(xw.gm & YNegative)
3174 xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
3177 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3178 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3179 xw.attrs.bit_gravity = NorthWestGravity;
3180 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3181 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3182 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3183 xw.attrs.colormap = xw.cmap;
3185 if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
3186 parent = XRootWindow(xw.dpy, xw.scr);
3187 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
3188 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3189 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3190 | CWEventMask | CWColormap, &xw.attrs);
3192 memset(&gcvalues, 0, sizeof(gcvalues));
3193 gcvalues.graphics_exposures = False;
3194 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3196 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3197 DefaultDepth(xw.dpy, xw.scr));
3198 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3199 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3201 /* Xft rendering context */
3202 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3205 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3206 XSetLocaleModifiers("@im=local");
3207 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3208 XSetLocaleModifiers("@im=");
3209 if((xw.xim = XOpenIM(xw.dpy,
3210 NULL, NULL, NULL)) == NULL) {
3211 die("XOpenIM failed. Could not open input"
3216 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3217 | XIMStatusNothing, XNClientWindow, xw.win,
3218 XNFocusWindow, xw.win, NULL);
3220 die("XCreateIC failed. Could not obtain input method.\n");
3222 /* white cursor, black outline */
3223 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3224 XDefineCursor(xw.dpy, xw.win, cursor);
3225 XRecolorCursor(xw.dpy, cursor,
3226 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3227 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3229 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3230 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3231 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3232 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3234 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3235 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3236 PropModeReplace, (uchar *)&thispid, 1);
3239 XMapWindow(xw.dpy, xw.win);
3241 XSync(xw.dpy, False);
3245 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3246 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3247 width = charlen * xw.cw, xp, i;
3248 int frcflags, charexists;
3249 int u8fl, u8fblen, u8cblen, doesexist;
3252 Font *font = &dc.font;
3254 FcPattern *fcpattern, *fontpattern;
3255 FcFontSet *fcsets[] = { NULL };
3256 FcCharSet *fccharset;
3257 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3258 XRenderColor colfg, colbg;
3262 frcflags = FRC_NORMAL;
3264 if(base.mode & ATTR_ITALIC) {
3265 if(base.fg == defaultfg)
3266 base.fg = defaultitalic;
3268 frcflags = FRC_ITALIC;
3269 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3270 if(base.fg == defaultfg)
3271 base.fg = defaultitalic;
3273 frcflags = FRC_ITALICBOLD;
3274 } else if(base.mode & ATTR_UNDERLINE) {
3275 if(base.fg == defaultfg)
3276 base.fg = defaultunderline;
3279 if(IS_TRUECOL(base.fg)) {
3280 colfg.alpha = 0xffff;
3281 colfg.red = TRUERED(base.fg);
3282 colfg.green = TRUEGREEN(base.fg);
3283 colfg.blue = TRUEBLUE(base.fg);
3284 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3287 fg = &dc.col[base.fg];
3290 if(IS_TRUECOL(base.bg)) {
3291 colbg.alpha = 0xffff;
3292 colbg.green = TRUEGREEN(base.bg);
3293 colbg.red = TRUERED(base.bg);
3294 colbg.blue = TRUEBLUE(base.bg);
3295 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3298 bg = &dc.col[base.bg];
3301 if(base.mode & ATTR_BOLD) {
3303 * change basic system colors [0-7]
3304 * to bright system colors [8-15]
3306 if(BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT))
3307 fg = &dc.col[base.fg + 8];
3309 if(base.mode & ATTR_ITALIC) {
3311 frcflags = FRC_ITALICBOLD;
3314 frcflags = FRC_BOLD;
3318 if(IS_SET(MODE_REVERSE)) {
3319 if(fg == &dc.col[defaultfg]) {
3320 fg = &dc.col[defaultbg];
3322 colfg.red = ~fg->color.red;
3323 colfg.green = ~fg->color.green;
3324 colfg.blue = ~fg->color.blue;
3325 colfg.alpha = fg->color.alpha;
3326 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3331 if(bg == &dc.col[defaultbg]) {
3332 bg = &dc.col[defaultfg];
3334 colbg.red = ~bg->color.red;
3335 colbg.green = ~bg->color.green;
3336 colbg.blue = ~bg->color.blue;
3337 colbg.alpha = bg->color.alpha;
3338 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3344 if(base.mode & ATTR_REVERSE) {
3350 if(base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) {
3351 colfg.red = fg->color.red / 2;
3352 colfg.green = fg->color.green / 2;
3353 colfg.blue = fg->color.blue / 2;
3354 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
3358 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3361 if(base.mode & ATTR_INVISIBLE)
3364 /* Intelligent cleaning up of the borders. */
3366 xclear(0, (y == 0)? 0 : winy, borderpx,
3367 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3369 if(x + charlen >= term.col) {
3370 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3371 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3374 xclear(winx, 0, winx + width, borderpx);
3376 xclear(winx, winy + xw.ch, winx + width, xw.h);
3378 /* Clean up the region we want to draw to. */
3379 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3381 /* Set the clip region because Xft is sometimes dirty. */
3386 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3388 for(xp = winx; bytelen > 0;) {
3390 * Search for the range in the to be printed string of glyphs
3391 * that are in the main font. Then print that range. If
3392 * some glyph is found that is not in the font, do the
3398 oneatatime = font->width != xw.cw;
3401 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3405 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3409 if(!oneatatime && bytelen > 0)
3414 XftDrawStringUtf8(xw.draw, fg,
3416 winy + font->ascent,
3429 /* Search the font cache. */
3430 for(i = 0; i < frclen; i++) {
3431 charexists = XftCharExists(xw.dpy, frc[i].font, unicodep);
3432 /* Everything correct. */
3433 if(charexists && frc[i].flags == frcflags)
3435 /* We got a default font for a not found glyph. */
3436 if(!charexists && frc[i].flags == frcflags \
3437 && frc[i].unicodep == unicodep) {
3442 /* Nothing was found. */
3446 fcsets[0] = font->set;
3449 * Nothing was found in the cache. Now use
3450 * some dozen of Fontconfig calls to get the
3451 * font for one single character.
3453 * Xft and fontconfig are design failures.
3455 fcpattern = FcPatternDuplicate(font->pattern);
3456 fccharset = FcCharSetCreate();
3458 FcCharSetAddChar(fccharset, unicodep);
3459 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3461 FcPatternAddBool(fcpattern, FC_SCALABLE,
3464 FcConfigSubstitute(0, fcpattern,
3466 FcDefaultSubstitute(fcpattern);
3468 fontpattern = FcFontSetMatch(0, fcsets, 1,
3472 * Overwrite or create the new cache entry.
3474 if(frclen >= LEN(frc)) {
3475 frclen = LEN(frc) - 1;
3476 XftFontClose(xw.dpy, frc[frclen].font);
3477 frc[frclen].unicodep = 0;
3480 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3482 frc[frclen].flags = frcflags;
3483 frc[frclen].unicodep = unicodep;
3488 FcPatternDestroy(fcpattern);
3489 FcCharSetDestroy(fccharset);
3492 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3493 xp, winy + frc[i].font->ascent,
3494 (FcChar8 *)u8c, u8cblen);
3496 xp += xw.cw * wcwidth(unicodep);
3500 * This is how the loop above actually should be. Why does the
3501 * application have to care about font details?
3503 * I have to repeat: Xft and Fontconfig are design failures.
3506 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3507 winy + font->ascent, (FcChar8 *)s, bytelen);
3510 if(base.mode & ATTR_UNDERLINE) {
3511 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3515 if(base.mode & ATTR_STRUCK) {
3516 XftDrawRect(xw.draw, fg, winx, winy + 2 * font->ascent / 3,
3520 /* Reset clip to none. */
3521 XftDrawSetClip(xw.draw, 0);
3526 static int oldx = 0, oldy = 0;
3527 int sl, width, curx;
3528 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3530 LIMIT(oldx, 0, term.col-1);
3531 LIMIT(oldy, 0, term.row-1);
3535 /* adjust position if in dummy */
3536 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3538 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3541 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3543 /* remove the old cursor */
3544 sl = utf8len(term.line[oldy][oldx].c);
3545 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3546 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3549 if(IS_SET(MODE_HIDE))
3552 /* draw the new one */
3553 if(xw.state & WIN_FOCUSED) {
3554 if(IS_SET(MODE_REVERSE)) {
3555 g.mode |= ATTR_REVERSE;
3561 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3563 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3565 XftDrawRect(xw.draw, &dc.col[defaultcs],
3566 borderpx + curx * xw.cw,
3567 borderpx + term.c.y * xw.ch,
3569 XftDrawRect(xw.draw, &dc.col[defaultcs],
3570 borderpx + curx * xw.cw,
3571 borderpx + term.c.y * xw.ch,
3573 XftDrawRect(xw.draw, &dc.col[defaultcs],
3574 borderpx + (curx + 1) * xw.cw - 1,
3575 borderpx + term.c.y * xw.ch,
3577 XftDrawRect(xw.draw, &dc.col[defaultcs],
3578 borderpx + curx * xw.cw,
3579 borderpx + (term.c.y + 1) * xw.ch - 1,
3582 oldx = curx, oldy = term.c.y;
3587 xsettitle(char *p) {
3590 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3592 XSetWMName(xw.dpy, xw.win, &prop);
3593 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3599 xsettitle(opt_title ? opt_title : "st");
3610 drawregion(0, 0, term.col, term.row);
3611 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3613 XSetForeground(xw.dpy, dc.gc,
3614 dc.col[IS_SET(MODE_REVERSE)?
3615 defaultfg : defaultbg].pixel);
3619 drawregion(int x1, int y1, int x2, int y2) {
3620 int ic, ib, x, y, ox, sl;
3622 char buf[DRAW_BUF_SIZ];
3623 bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
3626 if(!(xw.state & WIN_VISIBLE))
3629 for(y = y1; y < y2; y++) {
3633 xtermclear(0, y, term.col, y);
3635 base = term.line[y][0];
3637 for(x = x1; x < x2; x++) {
3638 new = term.line[y][x];
3639 if(new.mode == ATTR_WDUMMY)
3641 if(ena_sel && selected(x, y))
3642 new.mode ^= ATTR_REVERSE;
3643 if(ib > 0 && (ATTRCMP(base, new)
3644 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3645 xdraws(buf, base, ox, y, ic, ib);
3653 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3654 memcpy(buf+ib, new.c, sl);
3656 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3659 xdraws(buf, base, ox, y, ic, ib);
3665 expose(XEvent *ev) {
3666 XExposeEvent *e = &ev->xexpose;
3668 if(xw.state & WIN_REDRAW) {
3670 xw.state &= ~WIN_REDRAW;
3676 visibility(XEvent *ev) {
3677 XVisibilityEvent *e = &ev->xvisibility;
3679 if(e->state == VisibilityFullyObscured) {
3680 xw.state &= ~WIN_VISIBLE;
3681 } else if(!(xw.state & WIN_VISIBLE)) {
3682 /* need a full redraw for next Expose, not just a buf copy */
3683 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3689 xw.state &= ~WIN_VISIBLE;
3693 xsetpointermotion(int set) {
3694 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3695 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3699 xseturgency(int add) {
3700 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3702 MODBIT(h->flags, add, XUrgencyHint);
3703 XSetWMHints(xw.dpy, xw.win, h);
3709 XFocusChangeEvent *e = &ev->xfocus;
3711 if(e->mode == NotifyGrab)
3714 if(ev->type == FocusIn) {
3715 XSetICFocus(xw.xic);
3716 xw.state |= WIN_FOCUSED;
3718 if(IS_SET(MODE_FOCUS))
3719 ttywrite("\033[I", 3);
3721 XUnsetICFocus(xw.xic);
3722 xw.state &= ~WIN_FOCUSED;
3723 if(IS_SET(MODE_FOCUS))
3724 ttywrite("\033[O", 3);
3729 match(uint mask, uint state) {
3730 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3734 numlock(const Arg *dummy) {
3739 kmap(KeySym k, uint state) {
3743 /* Check for mapped keys out of X11 function keys. */
3744 for(i = 0; i < LEN(mappedkeys); i++) {
3745 if(mappedkeys[i] == k)
3748 if(i == LEN(mappedkeys)) {
3749 if((k & 0xFFFF) < 0xFD00)
3753 for(kp = key; kp < key + LEN(key); kp++) {
3757 if(!match(kp->mask, state))
3760 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3762 if(term.numlock && kp->appkey == 2)
3765 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3768 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3778 kpress(XEvent *ev) {
3779 XKeyEvent *e = &ev->xkey;
3781 char buf[32], *customkey;
3787 if(IS_SET(MODE_KBDLOCK))
3790 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3792 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3793 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3794 bp->func(&(bp->arg));
3799 /* 2. custom keys from config.h */
3800 if((customkey = kmap(ksym, e->state))) {
3801 ttysend(customkey, strlen(customkey));
3805 /* 3. composed string from input method */
3808 if(len == 1 && e->state & Mod1Mask) {
3809 if(IS_SET(MODE_8BIT)) {
3812 len = utf8encode(c, buf, UTF_SIZ);
3825 cmessage(XEvent *e) {
3828 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3830 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3831 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3832 xw.state |= WIN_FOCUSED;
3834 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3835 xw.state &= ~WIN_FOCUSED;
3837 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3838 /* Send SIGHUP to shell */
3845 cresize(int width, int height) {
3853 col = (xw.w - 2 * borderpx) / xw.cw;
3854 row = (xw.h - 2 * borderpx) / xw.ch;
3863 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3866 cresize(e->xconfigure.width, e->xconfigure.height);
3872 int w = xw.w, h = xw.h;
3874 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3875 struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
3878 /* Waiting for window mapping */
3880 XNextEvent(xw.dpy, &ev);
3881 if(XFilterEvent(&ev, None))
3883 if(ev.type == ConfigureNotify) {
3884 w = ev.xconfigure.width;
3885 h = ev.xconfigure.height;
3886 } else if(ev.type == MapNotify) {
3894 clock_gettime(CLOCK_MONOTONIC, &last);
3897 for(xev = actionfps;;) {
3899 FD_SET(cmdfd, &rfd);
3902 if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
3905 die("select failed: %s\n", strerror(errno));
3907 if(FD_ISSET(cmdfd, &rfd)) {
3910 blinkset = tattrset(ATTR_BLINK);
3912 MODBIT(term.mode, 0, MODE_BLINK);
3916 if(FD_ISSET(xfd, &rfd))
3919 clock_gettime(CLOCK_MONOTONIC, &now);
3920 drawtimeout.tv_sec = 0;
3921 drawtimeout.tv_nsec = (1000/xfps) * 1E6;
3925 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3926 tsetdirtattr(ATTR_BLINK);
3927 term.mode ^= MODE_BLINK;
3931 deltatime = TIMEDIFF(now, last);
3932 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3939 while(XPending(xw.dpy)) {
3940 XNextEvent(xw.dpy, &ev);
3941 if(XFilterEvent(&ev, None))
3943 if(handler[ev.type])
3944 (handler[ev.type])(&ev);
3950 if(xev && !FD_ISSET(xfd, &rfd))
3952 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3954 if(TIMEDIFF(now, lastblink) \
3956 drawtimeout.tv_nsec = 1000;
3958 drawtimeout.tv_nsec = (1E6 * \
3963 drawtimeout.tv_sec = \
3964 drawtimeout.tv_nsec / 1E9;
3965 drawtimeout.tv_nsec %= (long)1E9;
3976 die("%s " VERSION " (c) 2010-2015 st engineers\n" \
3977 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
3978 " [-i] [-t title] [-w windowid] [-e command ...]\n", argv0);
3982 main(int argc, char *argv[]) {
3984 uint cols = 80, rows = 24;
3991 allowaltscreen = false;
3994 opt_class = EARGF(usage());
3997 /* eat all remaining arguments */
4000 if(argv[1] != NULL && opt_title == NULL) {
4001 titles = xstrdup(argv[1]);
4002 opt_title = basename(titles);
4007 opt_font = EARGF(usage());
4010 xw.gm = XParseGeometry(EARGF(usage()),
4011 &xw.l, &xw.t, &cols, &rows);
4017 opt_io = EARGF(usage());
4020 opt_title = EARGF(usage());
4023 opt_embed = EARGF(usage());
4031 setlocale(LC_CTYPE, "");
4032 XSetLocaleModifiers("");
4033 tnew(cols? cols : 1, rows? rows : 1);