1 /* See LICENSE for licence details. */
15 #include <sys/ioctl.h>
16 #include <sys/select.h>
19 #include <sys/types.h>
24 #include <X11/Xatom.h>
26 #include <X11/Xutil.h>
27 #include <X11/cursorfont.h>
28 #include <X11/keysym.h>
29 #include <X11/Xft/Xft.h>
30 #include <fontconfig/fontconfig.h>
42 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
44 #elif defined(__FreeBSD__) || defined(__DragonFly__)
50 #define XEMBED_FOCUS_IN 4
51 #define XEMBED_FOCUS_OUT 5
54 #define UTF_INVALID 0xFFFD
56 #define ESC_BUF_SIZ (128*UTF_SIZ)
57 #define ESC_ARG_SIZ 16
58 #define STR_BUF_SIZ ESC_BUF_SIZ
59 #define STR_ARG_SIZ ESC_ARG_SIZ
60 #define DRAW_BUF_SIZ 20*1024
61 #define XK_ANY_MOD UINT_MAX
63 #define XK_SWITCH_MOD (1<<13)
65 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
68 #define MIN(a, b) ((a) < (b) ? (a) : (b))
69 #define MAX(a, b) ((a) < (b) ? (b) : (a))
70 #define LEN(a) (sizeof(a) / sizeof(a)[0])
71 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
72 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
73 #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f))
74 #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
75 #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
76 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
77 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
78 #define IS_SET(flag) ((term.mode & (flag)) != 0)
79 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_nsec-t2.tv_nsec)/1E6)
80 #define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
81 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
83 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
84 #define IS_TRUECOL(x) (1 << 24 & (x))
85 #define TRUERED(x) (((x) & 0xff0000) >> 8)
86 #define TRUEGREEN(x) (((x) & 0xff00))
87 #define TRUEBLUE(x) (((x) & 0xff) << 8)
90 #define VT102ID "\033[?6c"
92 enum glyph_attribute {
104 enum cursor_movement {
122 MODE_MOUSEMOTION = 64,
127 MODE_APPCURSOR = 2048,
128 MODE_MOUSESGR = 4096,
133 MODE_MOUSEX10 = 131072,
134 MODE_MOUSEMANY = 262144,
135 MODE_BRCKTPASTE = 524288,
136 MODE_PRINT = 1048576,
137 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
154 ESC_STR = 4, /* DCS, OSC, PM, APC */
156 ESC_STR_END = 16, /* a final string was encountered */
157 ESC_TEST = 32, /* Enter in test mode */
166 enum selection_type {
171 enum selection_snap {
176 typedef unsigned char uchar;
177 typedef unsigned int uint;
178 typedef unsigned long ulong;
179 typedef unsigned short ushort;
181 typedef XftDraw *Draw;
182 typedef XftColor Color;
185 char c[UTF_SIZ]; /* character code */
186 ushort mode; /* attribute flags */
187 uint32_t fg; /* foreground */
188 uint32_t bg; /* background */
194 Glyph attr; /* current char attributes */
200 /* CSI Escape sequence structs */
201 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
203 char buf[ESC_BUF_SIZ]; /* raw string */
204 int len; /* raw string length */
206 int arg[ESC_ARG_SIZ];
207 int narg; /* nb of args */
211 /* STR Escape sequence structs */
212 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
214 char type; /* ESC type ... */
215 char buf[STR_BUF_SIZ]; /* raw string */
216 int len; /* raw string length */
217 char *args[STR_ARG_SIZ];
218 int narg; /* nb of args */
221 /* Internal representation of the screen */
223 int row; /* nb row */
224 int col; /* nb col */
225 Line *line; /* screen */
226 Line *alt; /* alternate screen */
227 bool *dirty; /* dirtyness of lines */
228 TCursor c; /* cursor */
229 int top; /* top scroll limit */
230 int bot; /* bottom scroll limit */
231 int mode; /* terminal mode flags */
232 int esc; /* escape state flags */
233 char trantbl[4]; /* charset table translation */
234 int charset; /* current charset */
235 int icharset; /* selected charset for sequence */
236 bool numlock; /* lock numbers in keyboard */
240 /* Purely graphic info */
246 Atom xembed, wmdeletewin, netwmname, netwmpid;
251 XSetWindowAttributes attrs;
253 bool isfixed; /* is fixed geometry? */
254 int l, t; /* left and top offset */
255 int gm; /* geometry mask */
256 int tw, th; /* tty width and height */
257 int w, h; /* window width and height */
258 int ch; /* char height */
259 int cw; /* char width */
260 char state; /* focus, redraw, visible */
273 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
274 signed char appkey; /* application keypad */
275 signed char appcursor; /* application cursor */
276 signed char crlf; /* crlf mode */
284 * Selection variables:
285 * nb – normalized coordinates of the beginning of the selection
286 * ne – normalized coordinates of the end of the selection
287 * ob – original coordinates of the beginning of the selection
288 * oe – original coordinates of the end of the selection
297 struct timespec tclick1;
298 struct timespec tclick2;
311 void (*func)(const Arg *);
315 /* function definitions used in config.h */
316 static void clippaste(const Arg *);
317 static void numlock(const Arg *);
318 static void selpaste(const Arg *);
319 static void xzoom(const Arg *);
320 static void printsel(const Arg *);
321 static void printscreen(const Arg *) ;
322 static void toggleprinter(const Arg *);
324 /* Config.h for applying patches and the configuration. */
340 /* Drawing Context */
342 Color col[MAX(LEN(colorname), 256)];
343 Font font, bfont, ifont, ibfont;
347 static void die(const char *, ...);
348 static void draw(void);
349 static void redraw(int);
350 static void drawregion(int, int, int, int);
351 static void execsh(void);
352 static void sigchld(int);
353 static void run(void);
355 static void csidump(void);
356 static void csihandle(void);
357 static void csiparse(void);
358 static void csireset(void);
359 static void strdump(void);
360 static void strhandle(void);
361 static void strparse(void);
362 static void strreset(void);
364 static int tattrset(int);
365 static void tprinter(char *, size_t);
366 static void tdumpsel(void);
367 static void tdumpline(int);
368 static void tdump(void);
369 static void tclearregion(int, int, int, int);
370 static void tcursor(int);
371 static void tdeletechar(int);
372 static void tdeleteline(int);
373 static void tinsertblank(int);
374 static void tinsertblankline(int);
375 static void tmoveto(int, int);
376 static void tmoveato(int, int);
377 static void tnew(int, int);
378 static void tnewline(int);
379 static void tputtab(int);
380 static void tputc(char *, int);
381 static void treset(void);
382 static int tresize(int, int);
383 static void tscrollup(int, int);
384 static void tscrolldown(int, int);
385 static void tsetattr(int *, int);
386 static void tsetchar(char *, Glyph *, int, int);
387 static void tsetscroll(int, int);
388 static void tswapscreen(void);
389 static void tsetdirt(int, int);
390 static void tsetdirtattr(int);
391 static void tsetmode(bool, bool, int *, int);
392 static void tfulldirt(void);
393 static void techo(char *, int);
394 static void tcontrolcode(uchar );
395 static void tdectest(char );
396 static int32_t tdefcolor(int *, int *, int);
397 static void tdeftran(char);
398 static inline bool match(uint, uint);
399 static void ttynew(void);
400 static void ttyread(void);
401 static void ttyresize(void);
402 static void ttysend(char *, size_t);
403 static void ttywrite(const char *, size_t);
405 static void xdraws(char *, Glyph, int, int, int, int);
406 static void xhints(void);
407 static void xclear(int, int, int, int);
408 static void xdrawcursor(void);
409 static void xinit(void);
410 static void xloadcols(void);
411 static int xsetcolorname(int, const char *);
412 static int xgeommasktogravity(int);
413 static int xloadfont(Font *, FcPattern *);
414 static void xloadfonts(char *, double);
415 static int xloadfontset(Font *);
416 static void xsettitle(char *);
417 static void xresettitle(void);
418 static void xsetpointermotion(int);
419 static void xseturgency(int);
420 static void xsetsel(char *);
421 static void xtermclear(int, int, int, int);
422 static void xunloadfont(Font *);
423 static void xunloadfonts(void);
424 static void xresize(int, int);
426 static void expose(XEvent *);
427 static void visibility(XEvent *);
428 static void unmap(XEvent *);
429 static char *kmap(KeySym, uint);
430 static void kpress(XEvent *);
431 static void cmessage(XEvent *);
432 static void cresize(int, int);
433 static void resize(XEvent *);
434 static void focus(XEvent *);
435 static void brelease(XEvent *);
436 static void bpress(XEvent *);
437 static void bmotion(XEvent *);
438 static void selnotify(XEvent *);
439 static void selclear(XEvent *);
440 static void selrequest(XEvent *);
442 static void selinit(void);
443 static void selnormalize(void);
444 static inline bool selected(int, int);
445 static char *getsel(void);
446 static void selcopy(void);
447 static void selscroll(int, int);
448 static void selsnap(int, int *, int *, int);
449 static void getbuttoninfo(XEvent *);
450 static void mousereport(XEvent *);
452 static size_t utf8decode(char *, long *, size_t);
453 static long utf8decodebyte(char, size_t *);
454 static size_t utf8encode(long, char *, size_t);
455 static char utf8encodebyte(long, size_t);
456 static size_t utf8len(char *);
457 static size_t utf8validate(long *, size_t);
459 static ssize_t xwrite(int, const char *, size_t);
460 static void *xmalloc(size_t);
461 static void *xrealloc(void *, size_t);
462 static char *xstrdup(char *);
464 static void usage(void);
466 static void (*handler[LASTEvent])(XEvent *) = {
468 [ClientMessage] = cmessage,
469 [ConfigureNotify] = resize,
470 [VisibilityNotify] = visibility,
471 [UnmapNotify] = unmap,
475 [MotionNotify] = bmotion,
476 [ButtonPress] = bpress,
477 [ButtonRelease] = brelease,
478 [SelectionClear] = selclear,
479 [SelectionNotify] = selnotify,
480 [SelectionRequest] = selrequest,
487 static CSIEscape csiescseq;
488 static STREscape strescseq;
491 static Selection sel;
492 static int iofd = STDOUT_FILENO;
493 static char **opt_cmd = NULL;
494 static char *opt_io = NULL;
495 static char *opt_title = NULL;
496 static char *opt_embed = NULL;
497 static char *opt_class = NULL;
498 static char *opt_font = NULL;
499 static int oldbutton = 3; /* button event on startup: 3 = release */
501 static char *usedfont = NULL;
502 static double usedfontsize = 0;
504 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
505 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
506 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
507 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
509 /* Font Ring Cache */
522 /* Fontcache is an array now. A new font will be appended to the array. */
523 static Fontcache frc[16];
524 static int frclen = 0;
527 xwrite(int fd, const char *s, size_t len) {
531 ssize_t r = write(fd, s, len);
541 xmalloc(size_t len) {
542 void *p = malloc(len);
545 die("Out of memory\n");
551 xrealloc(void *p, size_t len) {
552 if((p = realloc(p, len)) == NULL)
553 die("Out of memory\n");
560 if((s = strdup(s)) == NULL)
561 die("Out of memory\n");
567 utf8decode(char *c, long *u, size_t clen) {
568 size_t i, j, len, type;
574 udecoded = utf8decodebyte(c[0], &len);
575 if(!BETWEEN(len, 1, UTF_SIZ))
577 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
578 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
585 utf8validate(u, len);
590 utf8decodebyte(char c, size_t *i) {
591 for(*i = 0; *i < LEN(utfmask); ++(*i))
592 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
593 return (uchar)c & ~utfmask[*i];
598 utf8encode(long u, char *c, size_t clen) {
601 len = utf8validate(&u, 0);
604 for(i = len - 1; i != 0; --i) {
605 c[i] = utf8encodebyte(u, 0);
608 c[0] = utf8encodebyte(u, len);
613 utf8encodebyte(long u, size_t i) {
614 return utfbyte[i] | (u & ~utfmask[i]);
619 return utf8decode(c, &(long){0}, UTF_SIZ);
623 utf8validate(long *u, size_t i) {
624 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
626 for(i = 1; *u > utfmax[i]; ++i)
633 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
634 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
638 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
639 if(sel.xtarget == None)
640 sel.xtarget = XA_STRING;
648 return LIMIT(x, 0, term.col-1);
656 return LIMIT(y, 0, term.row-1);
659 static int tlinelen(int y) {
662 while (i > 0 && term.line[y][i - 1].c[0] == ' ')
672 if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
673 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
674 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
676 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
677 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
679 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
680 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
682 /* expand selection over line breaks */
683 if (sel.type == SEL_RECTANGULAR)
685 i = tlinelen(sel.nb.y);
688 if (tlinelen(sel.ne.y) <= sel.ne.x)
689 sel.ne.x = term.col - 1;
693 selected(int x, int y) {
694 if(sel.type == SEL_RECTANGULAR)
695 return BETWEEN(y, sel.nb.y, sel.ne.y)
696 && BETWEEN(x, sel.nb.x, sel.ne.x);
698 return BETWEEN(y, sel.nb.y, sel.ne.y)
699 && (y != sel.nb.y || x >= sel.nb.x)
700 && (y != sel.ne.y || x <= sel.ne.x);
704 selsnap(int mode, int *x, int *y, int direction) {
705 int newx, newy, xt, yt;
711 * Snap around if the word wraps around at the end or
712 * beginning of a line.
715 newx = *x + direction;
717 if(!BETWEEN(newx, 0, term.col - 1)) {
719 newx = (newx + term.col) % term.col;
720 if (!BETWEEN(newy, 0, term.row - 1))
726 yt = newy, xt = newx;
727 if(!(term.line[yt][xt].mode & ATTR_WRAP))
731 if (newx >= tlinelen(newy))
734 gp = &term.line[newy][newx];
735 if (!(gp->mode & ATTR_WDUMMY) && strchr(worddelimiters, gp->c[0]))
744 * Snap around if the the previous line or the current one
745 * has set ATTR_WRAP at its end. Then the whole next or
746 * previous line will be selected.
748 *x = (direction < 0) ? 0 : term.col - 1;
749 if(direction < 0 && *y > 0) {
750 for(; *y > 0; *y += direction) {
751 if(!(term.line[*y-1][term.col-1].mode
756 } else if(direction > 0 && *y < term.row-1) {
757 for(; *y < term.row; *y += direction) {
758 if(!(term.line[*y][term.col-1].mode
769 getbuttoninfo(XEvent *e) {
771 uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
773 sel.alt = IS_SET(MODE_ALTSCREEN);
775 sel.oe.x = x2col(e->xbutton.x);
776 sel.oe.y = y2row(e->xbutton.y);
778 if(sel.ob.y < sel.oe.y
779 || (sel.ob.y == sel.oe.y && sel.ob.x < sel.oe.x)) {
780 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
781 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
783 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
784 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
788 sel.type = SEL_REGULAR;
789 for(type = 1; type < LEN(selmasks); ++type) {
790 if(match(selmasks[type], state)) {
798 mousereport(XEvent *e) {
799 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
800 button = e->xbutton.button, state = e->xbutton.state,
806 if(e->xbutton.type == MotionNotify) {
807 if(x == ox && y == oy)
809 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
811 /* MOUSE_MOTION: no reporting if no button is pressed */
812 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
815 button = oldbutton + 32;
819 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
826 if(e->xbutton.type == ButtonPress) {
830 } else if(e->xbutton.type == ButtonRelease) {
832 /* MODE_MOUSEX10: no button release reporting */
833 if(IS_SET(MODE_MOUSEX10))
835 if (button == 64 || button == 65)
840 if(!IS_SET(MODE_MOUSEX10)) {
841 button += (state & ShiftMask ? 4 : 0)
842 + (state & Mod4Mask ? 8 : 0)
843 + (state & ControlMask ? 16 : 0);
847 if(IS_SET(MODE_MOUSESGR)) {
848 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
850 e->xbutton.type == ButtonRelease ? 'm' : 'M');
851 } else if(x < 223 && y < 223) {
852 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
853 32+button, 32+x+1, 32+y+1);
866 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
871 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
872 if(e->xbutton.button == mk->b
873 && match(mk->mask, e->xbutton.state)) {
874 ttysend(mk->s, strlen(mk->s));
879 if(e->xbutton.button == Button1) {
880 clock_gettime(CLOCK_MONOTONIC, &now);
882 /* Clear previous selection, logically and visually. */
885 sel.type = SEL_REGULAR;
886 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
887 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
890 * If the user clicks below predefined timeouts specific
891 * snapping behaviour is exposed.
893 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
894 sel.snap = SNAP_LINE;
895 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
896 sel.snap = SNAP_WORD;
900 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
901 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
905 * Draw selection, unless it's regular and we don't want to
906 * make clicks visible
910 tsetdirt(sel.nb.y, sel.ne.y);
912 sel.tclick2 = sel.tclick1;
920 int x, y, bufsize, size, ex;
926 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
927 ptr = str = xmalloc(bufsize);
929 /* append every set & selected glyph to the selection */
930 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
931 gp = &term.line[y][0];
932 last = &gp[term.col-1];
934 while(last >= gp && !(selected(last - gp, y) &&
935 strcmp(last->c, " ") != 0)) {
939 for(x = 0; gp <= last; x++, ++gp) {
940 if(!selected(x, y) || (gp->mode & ATTR_WDUMMY))
943 size = utf8len(gp->c);
944 memcpy(ptr, gp->c, size);
949 * Copy and pasting of line endings is inconsistent
950 * in the inconsistent terminal and GUI world.
951 * The best solution seems like to produce '\n' when
952 * something is copied from st and convert '\n' to
953 * '\r', when something to be pasted is received by
955 * FIXME: Fix the computer world.
957 if(y < sel.ne.y && !(x > 0 && (gp-1)->mode & ATTR_WRAP))
961 * If the last selected line expands in the selection
962 * after the visible text '\n' is appended.
966 if(sel.nb.y == sel.ne.y && sel.ne.x < sel.nb.x)
982 selnotify(XEvent *e) {
983 ulong nitems, ofs, rem;
985 uchar *data, *last, *repl;
990 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
991 False, AnyPropertyType, &type, &format,
992 &nitems, &rem, &data)) {
993 fprintf(stderr, "Clipboard allocation failed\n");
999 * Line endings are inconsistent in the terminal and GUI world
1000 * copy and pasting. When receiving some selection data,
1001 * replace all '\n' with '\r'.
1002 * FIXME: Fix the computer world.
1005 last = data + nitems * format / 8;
1006 while((repl = memchr(repl, '\n', last - repl))) {
1010 if(IS_SET(MODE_BRCKTPASTE))
1011 ttywrite("\033[200~", 6);
1012 ttysend((char *)data, nitems * format / 8);
1013 if(IS_SET(MODE_BRCKTPASTE))
1014 ttywrite("\033[201~", 6);
1016 /* number of 32-bit chunks returned */
1017 ofs += nitems * format / 32;
1022 selpaste(const Arg *dummy) {
1023 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1024 xw.win, CurrentTime);
1028 clippaste(const Arg *dummy) {
1031 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1032 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
1033 xw.win, CurrentTime);
1037 selclear(XEvent *e) {
1041 tsetdirt(sel.nb.y, sel.ne.y);
1045 selrequest(XEvent *e) {
1046 XSelectionRequestEvent *xsre;
1047 XSelectionEvent xev;
1048 Atom xa_targets, string;
1050 xsre = (XSelectionRequestEvent *) e;
1051 xev.type = SelectionNotify;
1052 xev.requestor = xsre->requestor;
1053 xev.selection = xsre->selection;
1054 xev.target = xsre->target;
1055 xev.time = xsre->time;
1057 xev.property = None;
1059 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1060 if(xsre->target == xa_targets) {
1061 /* respond with the supported type */
1062 string = sel.xtarget;
1063 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1064 XA_ATOM, 32, PropModeReplace,
1065 (uchar *) &string, 1);
1066 xev.property = xsre->property;
1067 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
1068 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1069 xsre->target, 8, PropModeReplace,
1070 (uchar *) sel.clip, strlen(sel.clip));
1071 xev.property = xsre->property;
1074 /* all done, send a notification to the listener */
1075 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1076 fprintf(stderr, "Error sending SelectionNotify event\n");
1080 xsetsel(char *str) {
1081 /* register the selection for both the clipboard and the primary */
1087 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1089 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1090 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1094 brelease(XEvent *e) {
1095 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1100 if(e->xbutton.button == Button2) {
1102 } else if(e->xbutton.button == Button1) {
1110 tsetdirt(sel.nb.y, sel.ne.y);
1115 bmotion(XEvent *e) {
1116 int oldey, oldex, oldsby, oldsey;
1118 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1133 if(oldey != sel.oe.y || oldex != sel.oe.x)
1134 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1138 die(const char *errstr, ...) {
1141 va_start(ap, errstr);
1142 vfprintf(stderr, errstr, ap);
1150 char *envshell = getenv("SHELL");
1151 const struct passwd *pass = getpwuid(getuid());
1152 char buf[sizeof(long) * 8 + 1];
1154 unsetenv("COLUMNS");
1156 unsetenv("TERMCAP");
1159 setenv("LOGNAME", pass->pw_name, 1);
1160 setenv("USER", pass->pw_name, 1);
1161 setenv("SHELL", pass->pw_shell, 0);
1162 setenv("HOME", pass->pw_dir, 0);
1165 snprintf(buf, sizeof(buf), "%lu", xw.win);
1166 setenv("WINDOWID", buf, 1);
1168 signal(SIGCHLD, SIG_DFL);
1169 signal(SIGHUP, SIG_DFL);
1170 signal(SIGINT, SIG_DFL);
1171 signal(SIGQUIT, SIG_DFL);
1172 signal(SIGTERM, SIG_DFL);
1173 signal(SIGALRM, SIG_DFL);
1175 DEFAULT(envshell, shell);
1176 setenv("TERM", termname, 1);
1177 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
1178 execvp(args[0], args);
1186 if(waitpid(pid, &stat, 0) < 0)
1187 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1189 if(WIFEXITED(stat)) {
1190 exit(WEXITSTATUS(stat));
1199 struct winsize w = {term.row, term.col, 0, 0};
1201 /* seems to work fine on linux, openbsd and freebsd */
1202 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1203 die("openpty failed: %s\n", strerror(errno));
1205 switch(pid = fork()) {
1207 die("fork failed\n");
1210 setsid(); /* create a new process group */
1211 dup2(s, STDIN_FILENO);
1212 dup2(s, STDOUT_FILENO);
1213 dup2(s, STDERR_FILENO);
1214 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1215 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1223 signal(SIGCHLD, sigchld);
1225 term.mode |= MODE_PRINT;
1226 iofd = (!strcmp(opt_io, "-")) ?
1228 open(opt_io, O_WRONLY | O_CREAT, 0666);
1230 fprintf(stderr, "Error opening %s:%s\n",
1231 opt_io, strerror(errno));
1240 static char buf[BUFSIZ];
1241 static int buflen = 0;
1244 int charsize; /* size of utf8 char in bytes */
1248 /* append read bytes to unprocessed bytes */
1249 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1250 die("Couldn't read from shell: %s\n", strerror(errno));
1252 /* process every complete utf8 char */
1255 while((charsize = utf8decode(ptr, &unicodep, buflen))) {
1256 utf8encode(unicodep, s, UTF_SIZ);
1262 /* keep any uncomplete utf8 char for the next call */
1263 memmove(buf, ptr, buflen);
1267 ttywrite(const char *s, size_t n) {
1268 if(xwrite(cmdfd, s, n) == -1)
1269 die("write error on tty: %s\n", strerror(errno));
1273 ttysend(char *s, size_t n) {
1275 if(IS_SET(MODE_ECHO))
1283 w.ws_row = term.row;
1284 w.ws_col = term.col;
1285 w.ws_xpixel = xw.tw;
1286 w.ws_ypixel = xw.th;
1287 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1288 fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
1292 tattrset(int attr) {
1295 for(i = 0; i < term.row-1; i++) {
1296 for(j = 0; j < term.col-1; j++) {
1297 if(term.line[i][j].mode & attr)
1306 tsetdirt(int top, int bot) {
1309 LIMIT(top, 0, term.row-1);
1310 LIMIT(bot, 0, term.row-1);
1312 for(i = top; i <= bot; i++)
1317 tsetdirtattr(int attr) {
1320 for(i = 0; i < term.row-1; i++) {
1321 for(j = 0; j < term.col-1; j++) {
1322 if(term.line[i][j].mode & attr) {
1332 tsetdirt(0, term.row-1);
1337 static TCursor c[2];
1338 bool alt = IS_SET(MODE_ALTSCREEN);
1340 if(mode == CURSOR_SAVE) {
1342 } else if(mode == CURSOR_LOAD) {
1344 tmoveto(c[alt].x, c[alt].y);
1352 term.c = (TCursor){{
1356 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1358 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1359 for(i = tabspaces; i < term.col; i += tabspaces)
1362 term.bot = term.row - 1;
1363 term.mode = MODE_WRAP;
1364 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1367 tclearregion(0, 0, term.col-1, term.row-1);
1369 tcursor(CURSOR_SAVE);
1373 tnew(int col, int row) {
1374 term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
1383 Line *tmp = term.line;
1385 term.line = term.alt;
1387 term.mode ^= MODE_ALTSCREEN;
1392 tscrolldown(int orig, int n) {
1396 LIMIT(n, 0, term.bot-orig+1);
1398 tsetdirt(orig, term.bot-n);
1399 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1401 for(i = term.bot; i >= orig+n; i--) {
1402 temp = term.line[i];
1403 term.line[i] = term.line[i-n];
1404 term.line[i-n] = temp;
1411 tscrollup(int orig, int n) {
1415 LIMIT(n, 0, term.bot-orig+1);
1417 tclearregion(0, orig, term.col-1, orig+n-1);
1418 tsetdirt(orig+n, term.bot);
1420 for(i = orig; i <= term.bot-n; i++) {
1421 temp = term.line[i];
1422 term.line[i] = term.line[i+n];
1423 term.line[i+n] = temp;
1426 selscroll(orig, -n);
1430 selscroll(int orig, int n) {
1434 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1435 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1439 if(sel.type == SEL_RECTANGULAR) {
1440 if(sel.ob.y < term.top)
1441 sel.ob.y = term.top;
1442 if(sel.oe.y > term.bot)
1443 sel.oe.y = term.bot;
1445 if(sel.ob.y < term.top) {
1446 sel.ob.y = term.top;
1449 if(sel.oe.y > term.bot) {
1450 sel.oe.y = term.bot;
1451 sel.oe.x = term.col;
1459 tnewline(int first_col) {
1463 tscrollup(term.top, 1);
1467 tmoveto(first_col ? 0 : term.c.x, y);
1472 char *p = csiescseq.buf, *np;
1481 csiescseq.buf[csiescseq.len] = '\0';
1482 while(p < csiescseq.buf+csiescseq.len) {
1484 v = strtol(p, &np, 10);
1487 if(v == LONG_MAX || v == LONG_MIN)
1489 csiescseq.arg[csiescseq.narg++] = v;
1491 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1495 csiescseq.mode = *p;
1498 /* for absolute user moves, when decom is set */
1500 tmoveato(int x, int y) {
1501 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1505 tmoveto(int x, int y) {
1508 if(term.c.state & CURSOR_ORIGIN) {
1513 maxy = term.row - 1;
1515 LIMIT(x, 0, term.col-1);
1516 LIMIT(y, miny, maxy);
1517 term.c.state &= ~CURSOR_WRAPNEXT;
1523 tsetchar(char *c, Glyph *attr, int x, int y) {
1524 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1525 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1526 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1527 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1528 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1529 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1530 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1531 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1532 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1536 * The table is proudly stolen from rxvt.
1538 if(term.trantbl[term.charset] == CS_GRAPHIC0) {
1539 if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
1540 c = vt100_0[c[0] - 0x41];
1544 if(term.line[y][x].mode & ATTR_WIDE) {
1545 if(x+1 < term.col) {
1546 term.line[y][x+1].c[0] = ' ';
1547 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1549 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1550 term.line[y][x-1].c[0] = ' ';
1551 term.line[y][x-1].mode &= ~ATTR_WIDE;
1555 term.line[y][x] = *attr;
1556 memcpy(term.line[y][x].c, c, UTF_SIZ);
1560 tclearregion(int x1, int y1, int x2, int y2) {
1564 temp = x1, x1 = x2, x2 = temp;
1566 temp = y1, y1 = y2, y2 = temp;
1568 LIMIT(x1, 0, term.col-1);
1569 LIMIT(x2, 0, term.col-1);
1570 LIMIT(y1, 0, term.row-1);
1571 LIMIT(y2, 0, term.row-1);
1573 for(y = y1; y <= y2; y++) {
1575 for(x = x1; x <= x2; x++) {
1578 term.line[y][x] = term.c.attr;
1579 memcpy(term.line[y][x].c, " ", 2);
1585 tdeletechar(int n) {
1589 LIMIT(n, 0, term.col - term.c.x);
1593 size = term.col - src;
1594 line = term.line[term.c.y];
1596 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1597 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1601 tinsertblank(int n) {
1605 LIMIT(n, 0, term.col - term.c.x);
1609 size = term.col - dst;
1610 line = term.line[term.c.y];
1612 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1613 tclearregion(src, term.c.y, dst - 1, term.c.y);
1617 tinsertblankline(int n) {
1618 if(BETWEEN(term.c.y, term.top, term.bot))
1619 tscrolldown(term.c.y, n);
1623 tdeleteline(int n) {
1624 if(BETWEEN(term.c.y, term.top, term.bot))
1625 tscrollup(term.c.y, n);
1629 tdefcolor(int *attr, int *npar, int l) {
1633 switch (attr[*npar + 1]) {
1634 case 2: /* direct color in RGB space */
1635 if (*npar + 4 >= l) {
1637 "erresc(38): Incorrect number of parameters (%d)\n",
1641 r = attr[*npar + 2];
1642 g = attr[*npar + 3];
1643 b = attr[*npar + 4];
1645 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1646 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1649 idx = TRUECOLOR(r, g, b);
1651 case 5: /* indexed color */
1652 if (*npar + 2 >= l) {
1654 "erresc(38): Incorrect number of parameters (%d)\n",
1659 if(!BETWEEN(attr[*npar], 0, 255))
1660 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1664 case 0: /* implemented defined (only foreground) */
1665 case 1: /* transparent */
1666 case 3: /* direct color in CMY space */
1667 case 4: /* direct color in CMYK space */
1670 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1678 tsetattr(int *attr, int l) {
1682 for(i = 0; i < l; i++) {
1685 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
1686 | ATTR_BOLD | ATTR_ITALIC \
1688 term.c.attr.fg = defaultfg;
1689 term.c.attr.bg = defaultbg;
1692 term.c.attr.mode |= ATTR_BOLD;
1695 term.c.attr.mode |= ATTR_ITALIC;
1698 term.c.attr.mode |= ATTR_UNDERLINE;
1700 case 5: /* slow blink */
1701 case 6: /* rapid blink */
1702 term.c.attr.mode |= ATTR_BLINK;
1705 term.c.attr.mode |= ATTR_REVERSE;
1709 term.c.attr.mode &= ~ATTR_BOLD;
1712 term.c.attr.mode &= ~ATTR_ITALIC;
1715 term.c.attr.mode &= ~ATTR_UNDERLINE;
1719 term.c.attr.mode &= ~ATTR_BLINK;
1722 term.c.attr.mode &= ~ATTR_REVERSE;
1725 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1726 term.c.attr.fg = idx;
1729 term.c.attr.fg = defaultfg;
1732 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1733 term.c.attr.bg = idx;
1736 term.c.attr.bg = defaultbg;
1739 if(BETWEEN(attr[i], 30, 37)) {
1740 term.c.attr.fg = attr[i] - 30;
1741 } else if(BETWEEN(attr[i], 40, 47)) {
1742 term.c.attr.bg = attr[i] - 40;
1743 } else if(BETWEEN(attr[i], 90, 97)) {
1744 term.c.attr.fg = attr[i] - 90 + 8;
1745 } else if(BETWEEN(attr[i], 100, 107)) {
1746 term.c.attr.bg = attr[i] - 100 + 8;
1749 "erresc(default): gfx attr %d unknown\n",
1750 attr[i]), csidump();
1758 tsetscroll(int t, int b) {
1761 LIMIT(t, 0, term.row-1);
1762 LIMIT(b, 0, term.row-1);
1773 tsetmode(bool priv, bool set, int *args, int narg) {
1777 for(lim = args + narg; args < lim; ++args) {
1780 case 1: /* DECCKM -- Cursor key */
1781 MODBIT(term.mode, set, MODE_APPCURSOR);
1783 case 5: /* DECSCNM -- Reverse video */
1785 MODBIT(term.mode, set, MODE_REVERSE);
1786 if(mode != term.mode)
1787 redraw(REDRAW_TIMEOUT);
1789 case 6: /* DECOM -- Origin */
1790 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1793 case 7: /* DECAWM -- Auto wrap */
1794 MODBIT(term.mode, set, MODE_WRAP);
1796 case 0: /* Error (IGNORED) */
1797 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1798 case 3: /* DECCOLM -- Column (IGNORED) */
1799 case 4: /* DECSCLM -- Scroll (IGNORED) */
1800 case 8: /* DECARM -- Auto repeat (IGNORED) */
1801 case 18: /* DECPFF -- Printer feed (IGNORED) */
1802 case 19: /* DECPEX -- Printer extent (IGNORED) */
1803 case 42: /* DECNRCM -- National characters (IGNORED) */
1804 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1806 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1807 MODBIT(term.mode, !set, MODE_HIDE);
1809 case 9: /* X10 mouse compatibility mode */
1810 xsetpointermotion(0);
1811 MODBIT(term.mode, 0, MODE_MOUSE);
1812 MODBIT(term.mode, set, MODE_MOUSEX10);
1814 case 1000: /* 1000: report button press */
1815 xsetpointermotion(0);
1816 MODBIT(term.mode, 0, MODE_MOUSE);
1817 MODBIT(term.mode, set, MODE_MOUSEBTN);
1819 case 1002: /* 1002: report motion on button press */
1820 xsetpointermotion(0);
1821 MODBIT(term.mode, 0, MODE_MOUSE);
1822 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1824 case 1003: /* 1003: enable all mouse motions */
1825 xsetpointermotion(set);
1826 MODBIT(term.mode, 0, MODE_MOUSE);
1827 MODBIT(term.mode, set, MODE_MOUSEMANY);
1829 case 1004: /* 1004: send focus events to tty */
1830 MODBIT(term.mode, set, MODE_FOCUS);
1832 case 1006: /* 1006: extended reporting mode */
1833 MODBIT(term.mode, set, MODE_MOUSESGR);
1836 MODBIT(term.mode, set, MODE_8BIT);
1838 case 1049: /* swap screen & set/restore cursor as xterm */
1839 if (!allowaltscreen)
1841 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1843 case 47: /* swap screen */
1845 if (!allowaltscreen)
1847 alt = IS_SET(MODE_ALTSCREEN);
1849 tclearregion(0, 0, term.col-1,
1852 if(set ^ alt) /* set is always 1 or 0 */
1858 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1860 case 2004: /* 2004: bracketed paste mode */
1861 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1863 /* Not implemented mouse modes. See comments there. */
1864 case 1001: /* mouse highlight mode; can hang the
1865 terminal by design when implemented. */
1866 case 1005: /* UTF-8 mouse mode; will confuse
1867 applications not supporting UTF-8
1869 case 1015: /* urxvt mangled mouse mode; incompatible
1870 and can be mistaken for other control
1874 "erresc: unknown private set/reset mode %d\n",
1880 case 0: /* Error (IGNORED) */
1882 case 2: /* KAM -- keyboard action */
1883 MODBIT(term.mode, set, MODE_KBDLOCK);
1885 case 4: /* IRM -- Insertion-replacement */
1886 MODBIT(term.mode, set, MODE_INSERT);
1888 case 12: /* SRM -- Send/Receive */
1889 MODBIT(term.mode, !set, MODE_ECHO);
1891 case 20: /* LNM -- Linefeed/new line */
1892 MODBIT(term.mode, set, MODE_CRLF);
1896 "erresc: unknown set/reset mode %d\n",
1909 switch(csiescseq.mode) {
1912 fprintf(stderr, "erresc: unknown csi ");
1916 case '@': /* ICH -- Insert <n> blank char */
1917 DEFAULT(csiescseq.arg[0], 1);
1918 tinsertblank(csiescseq.arg[0]);
1920 case 'A': /* CUU -- Cursor <n> Up */
1921 DEFAULT(csiescseq.arg[0], 1);
1922 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1924 case 'B': /* CUD -- Cursor <n> Down */
1925 case 'e': /* VPR --Cursor <n> Down */
1926 DEFAULT(csiescseq.arg[0], 1);
1927 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1929 case 'i': /* MC -- Media Copy */
1930 switch(csiescseq.arg[0]) {
1935 tdumpline(term.c.y);
1941 term.mode &= ~MODE_PRINT;
1944 term.mode |= MODE_PRINT;
1948 case 'c': /* DA -- Device Attributes */
1949 if(csiescseq.arg[0] == 0)
1950 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1952 case 'C': /* CUF -- Cursor <n> Forward */
1953 case 'a': /* HPR -- Cursor <n> Forward */
1954 DEFAULT(csiescseq.arg[0], 1);
1955 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1957 case 'D': /* CUB -- Cursor <n> Backward */
1958 DEFAULT(csiescseq.arg[0], 1);
1959 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1961 case 'E': /* CNL -- Cursor <n> Down and first col */
1962 DEFAULT(csiescseq.arg[0], 1);
1963 tmoveto(0, term.c.y+csiescseq.arg[0]);
1965 case 'F': /* CPL -- Cursor <n> Up and first col */
1966 DEFAULT(csiescseq.arg[0], 1);
1967 tmoveto(0, term.c.y-csiescseq.arg[0]);
1969 case 'g': /* TBC -- Tabulation clear */
1970 switch(csiescseq.arg[0]) {
1971 case 0: /* clear current tab stop */
1972 term.tabs[term.c.x] = 0;
1974 case 3: /* clear all the tabs */
1975 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1981 case 'G': /* CHA -- Move to <col> */
1983 DEFAULT(csiescseq.arg[0], 1);
1984 tmoveto(csiescseq.arg[0]-1, term.c.y);
1986 case 'H': /* CUP -- Move to <row> <col> */
1988 DEFAULT(csiescseq.arg[0], 1);
1989 DEFAULT(csiescseq.arg[1], 1);
1990 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1992 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1993 DEFAULT(csiescseq.arg[0], 1);
1994 tputtab(csiescseq.arg[0]);
1996 case 'J': /* ED -- Clear screen */
1998 switch(csiescseq.arg[0]) {
2000 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2001 if(term.c.y < term.row-1) {
2002 tclearregion(0, term.c.y+1, term.col-1,
2008 tclearregion(0, 0, term.col-1, term.c.y-1);
2009 tclearregion(0, term.c.y, term.c.x, term.c.y);
2012 tclearregion(0, 0, term.col-1, term.row-1);
2018 case 'K': /* EL -- Clear line */
2019 switch(csiescseq.arg[0]) {
2021 tclearregion(term.c.x, term.c.y, term.col-1,
2025 tclearregion(0, term.c.y, term.c.x, term.c.y);
2028 tclearregion(0, term.c.y, term.col-1, term.c.y);
2032 case 'S': /* SU -- Scroll <n> line up */
2033 DEFAULT(csiescseq.arg[0], 1);
2034 tscrollup(term.top, csiescseq.arg[0]);
2036 case 'T': /* SD -- Scroll <n> line down */
2037 DEFAULT(csiescseq.arg[0], 1);
2038 tscrolldown(term.top, csiescseq.arg[0]);
2040 case 'L': /* IL -- Insert <n> blank lines */
2041 DEFAULT(csiescseq.arg[0], 1);
2042 tinsertblankline(csiescseq.arg[0]);
2044 case 'l': /* RM -- Reset Mode */
2045 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2047 case 'M': /* DL -- Delete <n> lines */
2048 DEFAULT(csiescseq.arg[0], 1);
2049 tdeleteline(csiescseq.arg[0]);
2051 case 'X': /* ECH -- Erase <n> char */
2052 DEFAULT(csiescseq.arg[0], 1);
2053 tclearregion(term.c.x, term.c.y,
2054 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2056 case 'P': /* DCH -- Delete <n> char */
2057 DEFAULT(csiescseq.arg[0], 1);
2058 tdeletechar(csiescseq.arg[0]);
2060 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2061 DEFAULT(csiescseq.arg[0], 1);
2062 tputtab(-csiescseq.arg[0]);
2064 case 'd': /* VPA -- Move to <row> */
2065 DEFAULT(csiescseq.arg[0], 1);
2066 tmoveato(term.c.x, csiescseq.arg[0]-1);
2068 case 'h': /* SM -- Set terminal mode */
2069 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2071 case 'm': /* SGR -- Terminal attribute (color) */
2072 tsetattr(csiescseq.arg, csiescseq.narg);
2074 case 'n': /* DSR – Device Status Report (cursor position) */
2075 if (csiescseq.arg[0] == 6) {
2076 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2077 term.c.y+1, term.c.x+1);
2081 case 'r': /* DECSTBM -- Set Scrolling Region */
2082 if(csiescseq.priv) {
2085 DEFAULT(csiescseq.arg[0], 1);
2086 DEFAULT(csiescseq.arg[1], term.row);
2087 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2091 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2092 tcursor(CURSOR_SAVE);
2094 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2095 tcursor(CURSOR_LOAD);
2106 for(i = 0; i < csiescseq.len; i++) {
2107 c = csiescseq.buf[i] & 0xff;
2110 } else if(c == '\n') {
2112 } else if(c == '\r') {
2114 } else if(c == 0x1b) {
2117 printf("(%02x)", c);
2125 memset(&csiescseq, 0, sizeof(csiescseq));
2133 term.esc &= ~(ESC_STR_END|ESC_STR);
2135 narg = strescseq.narg;
2136 par = atoi(strescseq.args[0]);
2138 switch(strescseq.type) {
2139 case ']': /* OSC -- Operating System Command */
2145 xsettitle(strescseq.args[1]);
2147 case 4: /* color set */
2150 p = strescseq.args[2];
2152 case 104: /* color reset, here p = NULL */
2153 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2154 if(xsetcolorname(j, p)) {
2155 fprintf(stderr, "erresc: invalid color %s\n", p);
2158 * TODO if defaultbg color is changed, borders
2166 case 'k': /* old title set compatibility */
2167 xsettitle(strescseq.args[0]);
2169 case 'P': /* DCS -- Device Control String */
2170 case '_': /* APC -- Application Program Command */
2171 case '^': /* PM -- Privacy Message */
2175 fprintf(stderr, "erresc: unknown str ");
2181 char *p = strescseq.buf;
2184 strescseq.buf[strescseq.len] = '\0';
2185 while(p && strescseq.narg < STR_ARG_SIZ)
2186 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2194 printf("ESC%c", strescseq.type);
2195 for(i = 0; i < strescseq.len; i++) {
2196 c = strescseq.buf[i] & 0xff;
2199 } else if(isprint(c)) {
2201 } else if(c == '\n') {
2203 } else if(c == '\r') {
2205 } else if(c == 0x1b) {
2208 printf("(%02x)", c);
2216 memset(&strescseq, 0, sizeof(strescseq));
2220 tprinter(char *s, size_t len) {
2221 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2222 fprintf(stderr, "Error writing in %s:%s\n",
2223 opt_io, strerror(errno));
2230 toggleprinter(const Arg *arg) {
2231 term.mode ^= MODE_PRINT;
2235 printscreen(const Arg *arg) {
2240 printsel(const Arg *arg) {
2248 if((ptr = getsel())) {
2249 tprinter(ptr, strlen(ptr));
2258 bp = &term.line[n][0];
2259 end = &bp[term.col-1];
2260 while(end > bp && !strcmp(" ", end->c))
2262 if(bp != end || strcmp(bp->c, " ")) {
2263 for( ;bp <= end; ++bp)
2264 tprinter(bp->c, strlen(bp->c));
2273 for(i = 0; i < term.row; ++i)
2282 while(x < term.col && n--)
2283 for(++x; x < term.col && !term.tabs[x]; ++x)
2287 for(--x; x > 0 && !term.tabs[x]; --x)
2290 tmoveto(x, term.c.y);
2294 techo(char *buf, int len) {
2295 for(; len > 0; buf++, len--) {
2298 if(ISCONTROL(c)) { /* control code */
2303 } else if(c != '\n' && c != '\r' && c != '\t') {
2317 tdeftran(char ascii) {
2318 static char cs[] = "0B";
2319 static int vcs[] = {CS_GRAPHIC0, CS_USA};
2322 if((p = strchr(cs, ascii)) == NULL) {
2323 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2325 term.trantbl[term.icharset] = vcs[p - cs];
2330 tcontrolcode(uchar ascii) {
2331 static char question[UTF_SIZ] = "?";
2338 tmoveto(term.c.x-1, term.c.y);
2341 tmoveto(0, term.c.y);
2346 /* go to first col if the mode is set */
2347 tnewline(IS_SET(MODE_CRLF));
2349 case '\a': /* BEL */
2350 if(term.esc & ESC_STR_END) {
2351 /* backwards compatibility to xterm */
2354 if(!(xw.state & WIN_FOCUSED))
2357 XBell(xw.dpy, bellvolume);
2360 case '\033': /* ESC */
2362 term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
2363 term.esc |= ESC_START;
2365 case '\016': /* SO */
2368 case '\017': /* SI */
2371 case '\032': /* SUB */
2372 tsetchar(question, &term.c.attr, term.c.x, term.c.y);
2373 case '\030': /* CAN */
2376 case '\005': /* ENQ (IGNORED) */
2377 case '\000': /* NUL (IGNORED) */
2378 case '\021': /* XON (IGNORED) */
2379 case '\023': /* XOFF (IGNORED) */
2380 case 0177: /* DEL (IGNORED) */
2382 case 0x84: /* TODO: IND */
2383 case 0x85: /* TODO: NEL */
2384 case 0x88: /* TODO: HTS */
2385 case 0x8d: /* TODO: RI */
2386 case 0x8e: /* TODO: SS2 */
2387 case 0x8f: /* TODO: SS3 */
2388 case 0x90: /* TODO: DCS */
2389 case 0x98: /* TODO: SOS */
2390 case 0x9a: /* TODO: DECID */
2391 case 0x9b: /* TODO: CSI */
2392 case 0x9c: /* TODO: ST */
2393 case 0x9d: /* TODO: OSC */
2394 case 0x9e: /* TODO: PM */
2395 case 0x9f: /* TODO: APC */
2398 /* only CAN, SUB, \a and C1 chars interrupt a sequence */
2399 term.esc &= ~(ESC_STR_END|ESC_STR);
2405 static char E[UTF_SIZ] = "E";
2408 if(c == '8') { /* DEC screen alignment test. */
2409 for(x = 0; x < term.col; ++x) {
2410 for(y = 0; y < term.row; ++y)
2411 tsetchar(E, &term.c.attr, x, y);
2417 tputc(char *c, int len) {
2426 unicodep = ascii = *c;
2428 utf8decode(c, &unicodep, UTF_SIZ);
2429 width = wcwidth(unicodep);
2430 control = ISCONTROLC1(unicodep);
2434 if(IS_SET(MODE_PRINT))
2436 control = ISCONTROL(unicodep);
2439 * STR sequence must be checked before anything else
2440 * because it uses all following characters until it
2441 * receives a ESC, a SUB, a ST or any other C1 control
2444 if(term.esc & ESC_STR) {
2446 (ascii == '\a' || ascii == 030 ||
2447 ascii == 032 || ascii == 033 ||
2448 ISCONTROLC1(unicodep))) {
2449 term.esc &= ~(ESC_START|ESC_STR);
2450 term.esc |= ESC_STR_END;
2451 } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2452 memmove(&strescseq.buf[strescseq.len], c, len);
2453 strescseq.len += len;
2457 * Here is a bug in terminals. If the user never sends
2458 * some code to stop the str or esc command, then st
2459 * will stop responding. But this is better than
2460 * silently failing with unknown characters. At least
2461 * then users will report back.
2463 * In the case users ever get fixed, here is the code:
2474 * Actions of control codes must be performed as soon they arrive
2475 * because they can be embedded inside a control sequence, and
2476 * they must not cause conflicts with sequences.
2479 tcontrolcode(ascii);
2481 * control codes are not shown ever
2484 } else if(term.esc & ESC_START) {
2485 if(term.esc & ESC_CSI) {
2486 csiescseq.buf[csiescseq.len++] = ascii;
2487 if(BETWEEN(ascii, 0x40, 0x7E)
2488 || csiescseq.len >= \
2489 sizeof(csiescseq.buf)-1) {
2495 } else if(term.esc & ESC_ALTCHARSET) {
2497 } else if(term.esc & ESC_TEST) {
2502 term.esc |= ESC_CSI;
2505 term.esc |= ESC_TEST;
2507 case 'P': /* DCS -- Device Control String */
2508 case '_': /* APC -- Application Program Command */
2509 case '^': /* PM -- Privacy Message */
2510 case ']': /* OSC -- Operating System Command */
2511 case 'k': /* old title set compatibility */
2513 strescseq.type = ascii;
2514 term.esc |= ESC_STR;
2516 case '(': /* set primary charset G0 */
2517 case ')': /* set secondary charset G1 */
2518 case '*': /* set tertiary charset G2 */
2519 case '+': /* set quaternary charset G3 */
2520 term.icharset = ascii - '(';
2521 term.esc |= ESC_ALTCHARSET;
2523 case 'D': /* IND -- Linefeed */
2524 if(term.c.y == term.bot) {
2525 tscrollup(term.top, 1);
2527 tmoveto(term.c.x, term.c.y+1);
2530 case 'E': /* NEL -- Next line */
2531 tnewline(1); /* always go to first col */
2533 case 'H': /* HTS -- Horizontal tab stop */
2534 term.tabs[term.c.x] = 1;
2536 case 'M': /* RI -- Reverse index */
2537 if(term.c.y == term.top) {
2538 tscrolldown(term.top, 1);
2540 tmoveto(term.c.x, term.c.y-1);
2543 case 'Z': /* DECID -- Identify Terminal */
2544 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2546 case 'c': /* RIS -- Reset to inital state */
2551 case '=': /* DECPAM -- Application keypad */
2552 term.mode |= MODE_APPKEYPAD;
2554 case '>': /* DECPNM -- Normal keypad */
2555 term.mode &= ~MODE_APPKEYPAD;
2557 case '7': /* DECSC -- Save Cursor */
2558 tcursor(CURSOR_SAVE);
2560 case '8': /* DECRC -- Restore Cursor */
2561 tcursor(CURSOR_LOAD);
2563 case '\\': /* ST -- String Terminator */
2564 if(term.esc & ESC_STR_END)
2568 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2569 (uchar) ascii, isprint(ascii)? ascii:'.');
2575 * All characters which form part of a sequence are not
2580 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2583 gp = &term.line[term.c.y][term.c.x];
2584 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2585 gp->mode |= ATTR_WRAP;
2589 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col)
2590 memmove(gp+1, gp, (term.col - term.c.x - 1) * sizeof(Glyph));
2592 if(term.c.x+width > term.col)
2595 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2598 gp->mode |= ATTR_WIDE;
2599 if(term.c.x+1 < term.col) {
2601 gp[1].mode = ATTR_WDUMMY;
2604 if(term.c.x+width < term.col) {
2605 tmoveto(term.c.x+width, term.c.y);
2607 term.c.state |= CURSOR_WRAPNEXT;
2612 tresize(int col, int row) {
2614 int minrow = MIN(row, term.row);
2615 int mincol = MIN(col, term.col);
2616 int slide = term.c.y - row + 1;
2621 if(col < 1 || row < 1)
2624 /* free unneeded rows */
2628 * slide screen to keep cursor where we expect it -
2629 * tscrollup would work here, but we can optimize to
2630 * memmove because we're freeing the earlier lines
2632 for(/* i = 0 */; i < slide; i++) {
2636 memmove(term.line, term.line + slide, row * sizeof(Line));
2637 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2639 for(i += row; i < term.row; i++) {
2644 /* resize to new height */
2645 term.line = xrealloc(term.line, row * sizeof(Line));
2646 term.alt = xrealloc(term.alt, row * sizeof(Line));
2647 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2648 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2650 /* resize each row to new width, zero-pad if needed */
2651 for(i = 0; i < minrow; i++) {
2653 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2654 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2657 /* allocate any new rows */
2658 for(/* i == minrow */; i < row; i++) {
2660 term.line[i] = xmalloc(col * sizeof(Glyph));
2661 term.alt[i] = xmalloc(col * sizeof(Glyph));
2663 if(col > term.col) {
2664 bp = term.tabs + term.col;
2666 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2667 while(--bp > term.tabs && !*bp)
2669 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2672 /* update terminal size */
2675 /* reset scrolling region */
2676 tsetscroll(0, row-1);
2677 /* make use of the LIMIT in tmoveto */
2678 tmoveto(term.c.x, term.c.y);
2679 /* Clearing both screens */
2683 if(mincol < col && 0 < minrow) {
2684 tclearregion(mincol, 0, col - 1, minrow - 1);
2686 if(0 < col && minrow < row) {
2687 tclearregion(0, minrow, col - 1, row - 1);
2690 tcursor(CURSOR_LOAD);
2691 } while(orig != term.line);
2698 xresize(int col, int row) {
2699 xw.tw = MAX(1, col * xw.cw);
2700 xw.th = MAX(1, row * xw.ch);
2702 XFreePixmap(xw.dpy, xw.buf);
2703 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2704 DefaultDepth(xw.dpy, xw.scr));
2705 XftDrawChange(xw.draw, xw.buf);
2706 xclear(0, 0, xw.w, xw.h);
2709 static inline ushort
2710 sixd_to_16bit(int x) {
2711 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2717 XRenderColor color = { .alpha = 0xffff };
2722 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2723 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2726 /* load colors [0-15] and [256-LEN(colorname)] (config.h) */
2727 for(i = 0; i < LEN(colorname); i++) {
2730 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2731 die("Could not allocate color '%s'\n", colorname[i]);
2735 /* load colors [16-231] ; same colors as xterm */
2736 for(i = 16; i < 6*6*6+16; i++) {
2737 color.red = sixd_to_16bit( ((i-16)/36)%6 );
2738 color.green = sixd_to_16bit( ((i-16)/6) %6 );
2739 color.blue = sixd_to_16bit( ((i-16)/1) %6 );
2740 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2741 die("Could not allocate color %d\n", i);
2744 /* load colors [232-255] ; grayscale */
2745 for(; i < 256; i++) {
2746 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
2747 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2748 die("Could not allocate color %d\n", i);
2754 xsetcolorname(int x, const char *name) {
2755 XRenderColor color = { .alpha = 0xffff };
2758 if(!BETWEEN(x, 0, LEN(colorname)))
2762 if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
2763 color.red = sixd_to_16bit( ((x-16)/36)%6 );
2764 color.green = sixd_to_16bit( ((x-16)/6) %6 );
2765 color.blue = sixd_to_16bit( ((x-16)/1) %6 );
2766 if(!XftColorAllocValue(xw.dpy, xw.vis,
2767 xw.cmap, &color, &ncolor)) {
2771 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2774 } else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
2775 color.red = color.green = color.blue = \
2776 0x0808 + 0x0a0a * (x - (16 + 216));
2777 if(!XftColorAllocValue(xw.dpy, xw.vis,
2778 xw.cmap, &color, &ncolor)) {
2782 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2785 } else { /* system colors */
2786 name = colorname[x];
2789 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
2792 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2798 xtermclear(int col1, int row1, int col2, int row2) {
2799 XftDrawRect(xw.draw,
2800 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2801 borderpx + col1 * xw.cw,
2802 borderpx + row1 * xw.ch,
2803 (col2-col1+1) * xw.cw,
2804 (row2-row1+1) * xw.ch);
2808 * Absolute coordinates.
2811 xclear(int x1, int y1, int x2, int y2) {
2812 XftDrawRect(xw.draw,
2813 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2814 x1, y1, x2-x1, y2-y1);
2819 XClassHint class = {opt_class ? opt_class : termname, termname};
2820 XWMHints wm = {.flags = InputHint, .input = 1};
2821 XSizeHints *sizeh = NULL;
2823 sizeh = XAllocSizeHints();
2825 sizeh->flags = PSize | PResizeInc | PBaseSize;
2826 sizeh->height = xw.h;
2827 sizeh->width = xw.w;
2828 sizeh->height_inc = xw.ch;
2829 sizeh->width_inc = xw.cw;
2830 sizeh->base_height = 2 * borderpx;
2831 sizeh->base_width = 2 * borderpx;
2832 if(xw.isfixed == True) {
2833 sizeh->flags |= PMaxSize | PMinSize;
2834 sizeh->min_width = sizeh->max_width = xw.w;
2835 sizeh->min_height = sizeh->max_height = xw.h;
2837 if(xw.gm & (XValue|YValue)) {
2838 sizeh->flags |= USPosition | PWinGravity;
2841 sizeh->win_gravity = xgeommasktogravity(xw.gm);
2844 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2850 xgeommasktogravity(int mask) {
2851 switch(mask & (XNegative|YNegative)) {
2853 return NorthWestGravity;
2855 return NorthEastGravity;
2857 return SouthWestGravity;
2859 return SouthEastGravity;
2863 xloadfont(Font *f, FcPattern *pattern) {
2867 match = FcFontMatch(NULL, pattern, &result);
2871 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2872 FcPatternDestroy(match);
2877 f->pattern = FcPatternDuplicate(pattern);
2879 f->ascent = f->match->ascent;
2880 f->descent = f->match->descent;
2882 f->rbearing = f->match->max_advance_width;
2884 f->height = f->ascent + f->descent;
2885 f->width = f->lbearing + f->rbearing;
2891 xloadfonts(char *fontstr, double fontsize) {
2893 FcResult r_sz, r_psz;
2896 if(fontstr[0] == '-') {
2897 pattern = XftXlfdParse(fontstr, False, False);
2899 pattern = FcNameParse((FcChar8 *)fontstr);
2903 die("st: can't open font %s\n", fontstr);
2906 FcPatternDel(pattern, FC_PIXEL_SIZE);
2907 FcPatternDel(pattern, FC_SIZE);
2908 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2909 usedfontsize = fontsize;
2911 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2912 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2913 if(r_psz == FcResultMatch) {
2914 usedfontsize = fontval;
2915 } else if(r_sz == FcResultMatch) {
2919 * Default font size is 12, if none given. This is to
2920 * have a known usedfontsize value.
2922 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2927 FcConfigSubstitute(0, pattern, FcMatchPattern);
2928 FcDefaultSubstitute(pattern);
2930 if(xloadfont(&dc.font, pattern))
2931 die("st: can't open font %s\n", fontstr);
2933 if(usedfontsize < 0) {
2934 FcPatternGetDouble(dc.font.match->pattern,
2935 FC_PIXEL_SIZE, 0, &fontval);
2936 usedfontsize = fontval;
2939 /* Setting character width and height. */
2940 xw.cw = CEIL(dc.font.width * cwscale);
2941 xw.ch = CEIL(dc.font.height * chscale);
2943 FcPatternDel(pattern, FC_SLANT);
2944 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2945 if(xloadfont(&dc.ifont, pattern))
2946 die("st: can't open font %s\n", fontstr);
2948 FcPatternDel(pattern, FC_WEIGHT);
2949 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2950 if(xloadfont(&dc.ibfont, pattern))
2951 die("st: can't open font %s\n", fontstr);
2953 FcPatternDel(pattern, FC_SLANT);
2954 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2955 if(xloadfont(&dc.bfont, pattern))
2956 die("st: can't open font %s\n", fontstr);
2958 FcPatternDestroy(pattern);
2962 xloadfontset(Font *f) {
2965 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
2971 xunloadfont(Font *f) {
2972 XftFontClose(xw.dpy, f->match);
2973 FcPatternDestroy(f->pattern);
2975 FcFontSetDestroy(f->set);
2979 xunloadfonts(void) {
2980 /* Free the loaded fonts in the font cache. */
2982 XftFontClose(xw.dpy, frc[--frclen].font);
2984 xunloadfont(&dc.font);
2985 xunloadfont(&dc.bfont);
2986 xunloadfont(&dc.ifont);
2987 xunloadfont(&dc.ibfont);
2991 xzoom(const Arg *arg) {
2993 xloadfonts(usedfont, usedfontsize + arg->i);
3004 pid_t thispid = getpid();
3006 if(!(xw.dpy = XOpenDisplay(NULL)))
3007 die("Can't open display\n");
3008 xw.scr = XDefaultScreen(xw.dpy);
3009 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3013 die("Could not init fontconfig.\n");
3015 usedfont = (opt_font == NULL)? font : opt_font;
3016 xloadfonts(usedfont, 0);
3019 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3022 /* adjust fixed window geometry */
3023 xw.w = 2 * borderpx + term.col * xw.cw;
3024 xw.h = 2 * borderpx + term.row * xw.ch;
3025 if(xw.gm & XNegative)
3026 xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
3027 if(xw.gm & YNegative)
3028 xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
3031 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3032 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3033 xw.attrs.bit_gravity = NorthWestGravity;
3034 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3035 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3036 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3037 xw.attrs.colormap = xw.cmap;
3039 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3040 XRootWindow(xw.dpy, xw.scr);
3041 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
3042 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3043 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3044 | CWEventMask | CWColormap, &xw.attrs);
3046 memset(&gcvalues, 0, sizeof(gcvalues));
3047 gcvalues.graphics_exposures = False;
3048 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3050 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3051 DefaultDepth(xw.dpy, xw.scr));
3052 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3053 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3055 /* Xft rendering context */
3056 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3059 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3060 XSetLocaleModifiers("@im=local");
3061 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3062 XSetLocaleModifiers("@im=");
3063 if((xw.xim = XOpenIM(xw.dpy,
3064 NULL, NULL, NULL)) == NULL) {
3065 die("XOpenIM failed. Could not open input"
3070 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3071 | XIMStatusNothing, XNClientWindow, xw.win,
3072 XNFocusWindow, xw.win, NULL);
3074 die("XCreateIC failed. Could not obtain input method.\n");
3076 /* white cursor, black outline */
3077 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3078 XDefineCursor(xw.dpy, xw.win, cursor);
3079 XRecolorCursor(xw.dpy, cursor,
3080 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3081 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3083 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3084 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3085 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3086 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3088 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3089 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3090 PropModeReplace, (uchar *)&thispid, 1);
3093 XMapWindow(xw.dpy, xw.win);
3095 XSync(xw.dpy, False);
3099 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3100 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3101 width = charlen * xw.cw, xp, i;
3103 int u8fl, u8fblen, u8cblen, doesexist;
3106 Font *font = &dc.font;
3108 FcPattern *fcpattern, *fontpattern;
3109 FcFontSet *fcsets[] = { NULL };
3110 FcCharSet *fccharset;
3111 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3112 XRenderColor colfg, colbg;
3116 frcflags = FRC_NORMAL;
3118 if(base.mode & ATTR_ITALIC) {
3119 if(base.fg == defaultfg)
3120 base.fg = defaultitalic;
3122 frcflags = FRC_ITALIC;
3123 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3124 if(base.fg == defaultfg)
3125 base.fg = defaultitalic;
3127 frcflags = FRC_ITALICBOLD;
3128 } else if(base.mode & ATTR_UNDERLINE) {
3129 if(base.fg == defaultfg)
3130 base.fg = defaultunderline;
3133 if(IS_TRUECOL(base.fg)) {
3134 colfg.alpha = 0xffff;
3135 colfg.red = TRUERED(base.fg);
3136 colfg.green = TRUEGREEN(base.fg);
3137 colfg.blue = TRUEBLUE(base.fg);
3138 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3141 fg = &dc.col[base.fg];
3144 if(IS_TRUECOL(base.bg)) {
3145 colbg.alpha = 0xffff;
3146 colbg.green = TRUEGREEN(base.bg);
3147 colbg.red = TRUERED(base.bg);
3148 colbg.blue = TRUEBLUE(base.bg);
3149 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3152 bg = &dc.col[base.bg];
3155 if(base.mode & ATTR_BOLD) {
3157 * change basic system colors [0-7]
3158 * to bright system colors [8-15]
3160 if(BETWEEN(base.fg, 0, 7))
3161 fg = &dc.col[base.fg + 8];
3163 if(base.mode & ATTR_ITALIC) {
3165 frcflags = FRC_ITALICBOLD;
3168 frcflags = FRC_BOLD;
3172 if(IS_SET(MODE_REVERSE)) {
3173 if(fg == &dc.col[defaultfg]) {
3174 fg = &dc.col[defaultbg];
3176 colfg.red = ~fg->color.red;
3177 colfg.green = ~fg->color.green;
3178 colfg.blue = ~fg->color.blue;
3179 colfg.alpha = fg->color.alpha;
3180 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3185 if(bg == &dc.col[defaultbg]) {
3186 bg = &dc.col[defaultfg];
3188 colbg.red = ~bg->color.red;
3189 colbg.green = ~bg->color.green;
3190 colbg.blue = ~bg->color.blue;
3191 colbg.alpha = bg->color.alpha;
3192 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3198 if(base.mode & ATTR_REVERSE) {
3204 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3207 /* Intelligent cleaning up of the borders. */
3209 xclear(0, (y == 0)? 0 : winy, borderpx,
3210 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3212 if(x + charlen >= term.col) {
3213 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3214 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3217 xclear(winx, 0, winx + width, borderpx);
3219 xclear(winx, winy + xw.ch, winx + width, xw.h);
3221 /* Clean up the region we want to draw to. */
3222 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3224 /* Set the clip region because Xft is sometimes dirty. */
3229 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3231 for(xp = winx; bytelen > 0;) {
3233 * Search for the range in the to be printed string of glyphs
3234 * that are in the main font. Then print that range. If
3235 * some glyph is found that is not in the font, do the
3241 oneatatime = font->width != xw.cw;
3244 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3248 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3252 if(!oneatatime && bytelen > 0)
3257 XftDrawStringUtf8(xw.draw, fg,
3259 winy + font->ascent,
3272 /* Search the font cache. */
3273 for(i = 0; i < frclen; i++) {
3274 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3275 && frc[i].flags == frcflags) {
3280 /* Nothing was found. */
3284 fcsets[0] = font->set;
3287 * Nothing was found in the cache. Now use
3288 * some dozen of Fontconfig calls to get the
3289 * font for one single character.
3291 * Xft and fontconfig are design failures.
3293 fcpattern = FcPatternDuplicate(font->pattern);
3294 fccharset = FcCharSetCreate();
3296 FcCharSetAddChar(fccharset, unicodep);
3297 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3299 FcPatternAddBool(fcpattern, FC_SCALABLE,
3302 FcConfigSubstitute(0, fcpattern,
3304 FcDefaultSubstitute(fcpattern);
3306 fontpattern = FcFontSetMatch(0, fcsets,
3307 FcTrue, fcpattern, &fcres);
3310 * Overwrite or create the new cache entry.
3312 if(frclen >= LEN(frc)) {
3313 frclen = LEN(frc) - 1;
3314 XftFontClose(xw.dpy, frc[frclen].font);
3317 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3319 frc[frclen].flags = frcflags;
3324 FcPatternDestroy(fcpattern);
3325 FcCharSetDestroy(fccharset);
3328 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3329 xp, winy + frc[i].font->ascent,
3330 (FcChar8 *)u8c, u8cblen);
3332 xp += xw.cw * wcwidth(unicodep);
3336 * This is how the loop above actually should be. Why does the
3337 * application have to care about font details?
3339 * I have to repeat: Xft and Fontconfig are design failures.
3342 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3343 winy + font->ascent, (FcChar8 *)s, bytelen);
3346 if(base.mode & ATTR_UNDERLINE) {
3347 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3351 /* Reset clip to none. */
3352 XftDrawSetClip(xw.draw, 0);
3357 static int oldx = 0, oldy = 0;
3358 int sl, width, curx;
3359 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3361 LIMIT(oldx, 0, term.col-1);
3362 LIMIT(oldy, 0, term.row-1);
3366 /* adjust position if in dummy */
3367 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3369 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3372 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3374 /* remove the old cursor */
3375 sl = utf8len(term.line[oldy][oldx].c);
3376 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3377 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3380 /* draw the new one */
3381 if(!(IS_SET(MODE_HIDE))) {
3382 if(xw.state & WIN_FOCUSED) {
3383 if(IS_SET(MODE_REVERSE)) {
3384 g.mode |= ATTR_REVERSE;
3390 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3392 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3394 XftDrawRect(xw.draw, &dc.col[defaultcs],
3395 borderpx + curx * xw.cw,
3396 borderpx + term.c.y * xw.ch,
3398 XftDrawRect(xw.draw, &dc.col[defaultcs],
3399 borderpx + curx * xw.cw,
3400 borderpx + term.c.y * xw.ch,
3402 XftDrawRect(xw.draw, &dc.col[defaultcs],
3403 borderpx + (curx + 1) * xw.cw - 1,
3404 borderpx + term.c.y * xw.ch,
3406 XftDrawRect(xw.draw, &dc.col[defaultcs],
3407 borderpx + curx * xw.cw,
3408 borderpx + (term.c.y + 1) * xw.ch - 1,
3411 oldx = curx, oldy = term.c.y;
3417 xsettitle(char *p) {
3420 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3422 XSetWMName(xw.dpy, xw.win, &prop);
3423 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3429 xsettitle(opt_title ? opt_title : "st");
3433 redraw(int timeout) {
3434 struct timespec tv = {0, timeout * 1000};
3440 nanosleep(&tv, NULL);
3441 XSync(xw.dpy, False); /* necessary for a good tput flash */
3447 drawregion(0, 0, term.col, term.row);
3448 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3450 XSetForeground(xw.dpy, dc.gc,
3451 dc.col[IS_SET(MODE_REVERSE)?
3452 defaultfg : defaultbg].pixel);
3456 drawregion(int x1, int y1, int x2, int y2) {
3457 int ic, ib, x, y, ox, sl;
3459 char buf[DRAW_BUF_SIZ];
3460 bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
3463 if(!(xw.state & WIN_VISIBLE))
3466 for(y = y1; y < y2; y++) {
3470 xtermclear(0, y, term.col, y);
3472 base = term.line[y][0];
3474 for(x = x1; x < x2; x++) {
3475 new = term.line[y][x];
3476 if(new.mode == ATTR_WDUMMY)
3478 if(ena_sel && selected(x, y))
3479 new.mode ^= ATTR_REVERSE;
3480 if(ib > 0 && (ATTRCMP(base, new)
3481 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3482 xdraws(buf, base, ox, y, ic, ib);
3490 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3491 memcpy(buf+ib, new.c, sl);
3493 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3496 xdraws(buf, base, ox, y, ic, ib);
3502 expose(XEvent *ev) {
3503 XExposeEvent *e = &ev->xexpose;
3505 if(xw.state & WIN_REDRAW) {
3507 xw.state &= ~WIN_REDRAW;
3513 visibility(XEvent *ev) {
3514 XVisibilityEvent *e = &ev->xvisibility;
3516 if(e->state == VisibilityFullyObscured) {
3517 xw.state &= ~WIN_VISIBLE;
3518 } else if(!(xw.state & WIN_VISIBLE)) {
3519 /* need a full redraw for next Expose, not just a buf copy */
3520 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3526 xw.state &= ~WIN_VISIBLE;
3530 xsetpointermotion(int set) {
3531 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3532 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3536 xseturgency(int add) {
3537 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3539 MODBIT(h->flags, add, XUrgencyHint);
3540 XSetWMHints(xw.dpy, xw.win, h);
3546 XFocusChangeEvent *e = &ev->xfocus;
3548 if(e->mode == NotifyGrab)
3551 if(ev->type == FocusIn) {
3552 XSetICFocus(xw.xic);
3553 xw.state |= WIN_FOCUSED;
3555 if(IS_SET(MODE_FOCUS))
3556 ttywrite("\033[I", 3);
3558 XUnsetICFocus(xw.xic);
3559 xw.state &= ~WIN_FOCUSED;
3560 if(IS_SET(MODE_FOCUS))
3561 ttywrite("\033[O", 3);
3566 match(uint mask, uint state) {
3567 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3571 numlock(const Arg *dummy) {
3576 kmap(KeySym k, uint state) {
3580 /* Check for mapped keys out of X11 function keys. */
3581 for(i = 0; i < LEN(mappedkeys); i++) {
3582 if(mappedkeys[i] == k)
3585 if(i == LEN(mappedkeys)) {
3586 if((k & 0xFFFF) < 0xFD00)
3590 for(kp = key; kp < key + LEN(key); kp++) {
3594 if(!match(kp->mask, state))
3597 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3599 if(term.numlock && kp->appkey == 2)
3602 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3605 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3615 kpress(XEvent *ev) {
3616 XKeyEvent *e = &ev->xkey;
3618 char buf[32], *customkey;
3624 if(IS_SET(MODE_KBDLOCK))
3627 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3629 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3630 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3631 bp->func(&(bp->arg));
3636 /* 2. custom keys from config.h */
3637 if((customkey = kmap(ksym, e->state))) {
3638 ttysend(customkey, strlen(customkey));
3642 /* 3. composed string from input method */
3645 if(len == 1 && e->state & Mod1Mask) {
3646 if(IS_SET(MODE_8BIT)) {
3649 len = utf8encode(c, buf, UTF_SIZ);
3662 cmessage(XEvent *e) {
3665 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3667 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3668 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3669 xw.state |= WIN_FOCUSED;
3671 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3672 xw.state &= ~WIN_FOCUSED;
3674 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3675 /* Send SIGHUP to shell */
3682 cresize(int width, int height) {
3690 col = (xw.w - 2 * borderpx) / xw.cw;
3691 row = (xw.h - 2 * borderpx) / xw.ch;
3700 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3703 cresize(e->xconfigure.width, e->xconfigure.height);
3709 int w = xw.w, h = xw.h;
3711 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3712 struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
3715 /* Waiting for window mapping */
3717 XNextEvent(xw.dpy, &ev);
3718 if(ev.type == ConfigureNotify) {
3719 w = ev.xconfigure.width;
3720 h = ev.xconfigure.height;
3721 } else if(ev.type == MapNotify) {
3729 clock_gettime(CLOCK_MONOTONIC, &last);
3732 for(xev = actionfps;;) {
3734 FD_SET(cmdfd, &rfd);
3737 if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
3740 die("select failed: %s\n", strerror(errno));
3742 if(FD_ISSET(cmdfd, &rfd)) {
3745 blinkset = tattrset(ATTR_BLINK);
3747 MODBIT(term.mode, 0, MODE_BLINK);
3751 if(FD_ISSET(xfd, &rfd))
3754 clock_gettime(CLOCK_MONOTONIC, &now);
3755 drawtimeout.tv_sec = 0;
3756 drawtimeout.tv_nsec = (1000/xfps) * 1E6;
3760 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3761 tsetdirtattr(ATTR_BLINK);
3762 term.mode ^= MODE_BLINK;
3766 deltatime = TIMEDIFF(now, last);
3767 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3774 while(XPending(xw.dpy)) {
3775 XNextEvent(xw.dpy, &ev);
3776 if(XFilterEvent(&ev, None))
3778 if(handler[ev.type])
3779 (handler[ev.type])(&ev);
3785 if(xev && !FD_ISSET(xfd, &rfd))
3787 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3789 if(TIMEDIFF(now, lastblink) \
3791 drawtimeout.tv_nsec = 1000;
3793 drawtimeout.tv_nsec = (1E6 * \
3808 die("%s " VERSION " (c) 2010-2014 st engineers\n" \
3809 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3810 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3814 main(int argc, char *argv[]) {
3816 uint cols = 80, rows = 24;
3823 allowaltscreen = false;
3826 opt_class = EARGF(usage());
3829 /* eat all remaining arguments */
3832 if(argv[1] != NULL && opt_title == NULL) {
3833 titles = xstrdup(argv[1]);
3834 opt_title = basename(titles);
3839 opt_font = EARGF(usage());
3842 xw.gm = XParseGeometry(EARGF(usage()),
3843 &xw.l, &xw.t, &cols, &rows);
3849 opt_io = EARGF(usage());
3852 opt_title = EARGF(usage());
3855 opt_embed = EARGF(usage());
3863 setlocale(LC_CTYPE, "");
3864 XSetLocaleModifiers("");
3865 tnew(cols? cols : 1, rows? rows : 1);