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)
66 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
69 #define MIN(a, b) ((a) < (b) ? (a) : (b))
70 #define MAX(a, b) ((a) < (b) ? (b) : (a))
71 #define LEN(a) (sizeof(a) / sizeof(a)[0])
72 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
73 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
74 #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
75 #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
76 #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
77 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
78 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
79 #define IS_SET(flag) ((term.mode & (flag)) != 0)
80 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_nsec-t2.tv_nsec)/1E6)
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 enum glyph_attribute {
95 ATTR_UNDERLINE = 1 << 3,
97 ATTR_REVERSE = 1 << 5,
98 ATTR_INVISIBLE = 1 << 6,
102 ATTR_WDUMMY = 1 << 10,
105 enum cursor_movement {
118 MODE_INSERT = 1 << 1,
119 MODE_APPKEYPAD = 1 << 2,
120 MODE_ALTSCREEN = 1 << 3,
122 MODE_MOUSEBTN = 1 << 5,
123 MODE_MOUSEMOTION = 1 << 6,
124 MODE_REVERSE = 1 << 7,
125 MODE_KBDLOCK = 1 << 8,
128 MODE_APPCURSOR = 1 << 11,
129 MODE_MOUSESGR = 1 << 12,
131 MODE_BLINK = 1 << 14,
132 MODE_FBLINK = 1 << 15,
133 MODE_FOCUS = 1 << 16,
134 MODE_MOUSEX10 = 1 << 17,
135 MODE_MOUSEMANY = 1 << 18,
136 MODE_BRCKTPASTE = 1 << 19,
137 MODE_PRINT = 1 << 20,
138 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
155 ESC_STR = 4, /* DCS, OSC, PM, APC */
157 ESC_STR_END = 16, /* a final string was encountered */
158 ESC_TEST = 32, /* Enter in test mode */
167 enum selection_type {
172 enum selection_snap {
177 typedef unsigned char uchar;
178 typedef unsigned int uint;
179 typedef unsigned long ulong;
180 typedef unsigned short ushort;
182 typedef XftDraw *Draw;
183 typedef XftColor Color;
186 char c[UTF_SIZ]; /* character code */
187 ushort mode; /* attribute flags */
188 uint32_t fg; /* foreground */
189 uint32_t bg; /* background */
195 Glyph attr; /* current char attributes */
201 /* CSI Escape sequence structs */
202 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
204 char buf[ESC_BUF_SIZ]; /* raw string */
205 int len; /* raw string length */
207 int arg[ESC_ARG_SIZ];
208 int narg; /* nb of args */
212 /* STR Escape sequence structs */
213 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
215 char type; /* ESC type ... */
216 char buf[STR_BUF_SIZ]; /* raw string */
217 int len; /* raw string length */
218 char *args[STR_ARG_SIZ];
219 int narg; /* nb of args */
222 /* Internal representation of the screen */
224 int row; /* nb row */
225 int col; /* nb col */
226 Line *line; /* screen */
227 Line *alt; /* alternate screen */
228 bool *dirty; /* dirtyness of lines */
229 TCursor c; /* cursor */
230 int top; /* top scroll limit */
231 int bot; /* bottom scroll limit */
232 int mode; /* terminal mode flags */
233 int esc; /* escape state flags */
234 char trantbl[4]; /* charset table translation */
235 int charset; /* current charset */
236 int icharset; /* selected charset for sequence */
237 bool numlock; /* lock numbers in keyboard */
241 /* Purely graphic info */
247 Atom xembed, wmdeletewin, netwmname, netwmpid;
252 XSetWindowAttributes attrs;
254 bool isfixed; /* is fixed geometry? */
255 int l, t; /* left and top offset */
256 int gm; /* geometry mask */
257 int tw, th; /* tty width and height */
258 int w, h; /* window width and height */
259 int ch; /* char height */
260 int cw; /* char width */
261 char state; /* focus, redraw, visible */
274 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
275 signed char appkey; /* application keypad */
276 signed char appcursor; /* application cursor */
277 signed char crlf; /* crlf mode */
285 * Selection variables:
286 * nb – normalized coordinates of the beginning of the selection
287 * ne – normalized coordinates of the end of the selection
288 * ob – original coordinates of the beginning of the selection
289 * oe – original coordinates of the end of the selection
298 struct timespec tclick1;
299 struct timespec tclick2;
312 void (*func)(const Arg *);
316 /* function definitions used in config.h */
317 static void clippaste(const Arg *);
318 static void numlock(const Arg *);
319 static void selpaste(const Arg *);
320 static void xzoom(const Arg *);
321 static void xzoomabs(const Arg *);
322 static void xzoomreset(const Arg *);
323 static void printsel(const Arg *);
324 static void printscreen(const Arg *) ;
325 static void toggleprinter(const Arg *);
327 /* Config.h for applying patches and the configuration. */
343 /* Drawing Context */
345 Color col[MAX(LEN(colorname), 256)];
346 Font font, bfont, ifont, ibfont;
350 static void die(const char *, ...);
351 static void draw(void);
352 static void redraw(int);
353 static void drawregion(int, int, int, int);
354 static void execsh(void);
355 static void sigchld(int);
356 static void run(void);
358 static void csidump(void);
359 static void csihandle(void);
360 static void csiparse(void);
361 static void csireset(void);
362 static int eschandle(uchar ascii);
363 static void strdump(void);
364 static void strhandle(void);
365 static void strparse(void);
366 static void strreset(void);
368 static int tattrset(int);
369 static void tprinter(char *, size_t);
370 static void tdumpsel(void);
371 static void tdumpline(int);
372 static void tdump(void);
373 static void tclearregion(int, int, int, int);
374 static void tcursor(int);
375 static void tdeletechar(int);
376 static void tdeleteline(int);
377 static void tinsertblank(int);
378 static void tinsertblankline(int);
379 static int tlinelen(int);
380 static void tmoveto(int, int);
381 static void tmoveato(int, int);
382 static void tnew(int, int);
383 static void tnewline(int);
384 static void tputtab(int);
385 static void tputc(char *, int);
386 static void treset(void);
387 static void tresize(int, int);
388 static void tscrollup(int, int);
389 static void tscrolldown(int, int);
390 static void tsetattr(int *, int);
391 static void tsetchar(char *, Glyph *, int, int);
392 static void tsetscroll(int, int);
393 static void tswapscreen(void);
394 static void tsetdirt(int, int);
395 static void tsetdirtattr(int);
396 static void tsetmode(bool, bool, int *, int);
397 static void tfulldirt(void);
398 static void techo(char *, int);
399 static void tcontrolcode(uchar );
400 static void tdectest(char );
401 static int32_t tdefcolor(int *, int *, int);
402 static void tdeftran(char);
403 static inline bool match(uint, uint);
404 static void ttynew(void);
405 static void ttyread(void);
406 static void ttyresize(void);
407 static void ttysend(char *, size_t);
408 static void ttywrite(const char *, size_t);
409 static void tstrsequence(uchar c);
411 static void xdraws(char *, Glyph, int, int, int, int);
412 static void xhints(void);
413 static void xclear(int, int, int, int);
414 static void xdrawcursor(void);
415 static void xinit(void);
416 static void xloadcols(void);
417 static int xsetcolorname(int, const char *);
418 static int xgeommasktogravity(int);
419 static int xloadfont(Font *, FcPattern *);
420 static void xloadfonts(char *, double);
421 static int xloadfontset(Font *);
422 static void xsettitle(char *);
423 static void xresettitle(void);
424 static void xsetpointermotion(int);
425 static void xseturgency(int);
426 static void xsetsel(char *);
427 static void xtermclear(int, int, int, int);
428 static void xunloadfont(Font *);
429 static void xunloadfonts(void);
430 static void xresize(int, int);
432 static void expose(XEvent *);
433 static void visibility(XEvent *);
434 static void unmap(XEvent *);
435 static char *kmap(KeySym, uint);
436 static void kpress(XEvent *);
437 static void cmessage(XEvent *);
438 static void cresize(int, int);
439 static void resize(XEvent *);
440 static void focus(XEvent *);
441 static void brelease(XEvent *);
442 static void bpress(XEvent *);
443 static void bmotion(XEvent *);
444 static void selnotify(XEvent *);
445 static void selclear(XEvent *);
446 static void selrequest(XEvent *);
448 static void selinit(void);
449 static void selnormalize(void);
450 static inline bool selected(int, int);
451 static char *getsel(void);
452 static void selcopy(void);
453 static void selscroll(int, int);
454 static void selsnap(int, int *, int *, int);
455 static void getbuttoninfo(XEvent *);
456 static void mousereport(XEvent *);
458 static size_t utf8decode(char *, long *, size_t);
459 static long utf8decodebyte(char, size_t *);
460 static size_t utf8encode(long, char *, size_t);
461 static char utf8encodebyte(long, size_t);
462 static size_t utf8len(char *);
463 static size_t utf8validate(long *, size_t);
465 static ssize_t xwrite(int, const char *, size_t);
466 static void *xmalloc(size_t);
467 static void *xrealloc(void *, size_t);
468 static char *xstrdup(char *);
470 static void usage(void);
472 static void (*handler[LASTEvent])(XEvent *) = {
474 [ClientMessage] = cmessage,
475 [ConfigureNotify] = resize,
476 [VisibilityNotify] = visibility,
477 [UnmapNotify] = unmap,
481 [MotionNotify] = bmotion,
482 [ButtonPress] = bpress,
483 [ButtonRelease] = brelease,
484 [SelectionClear] = selclear,
485 [SelectionNotify] = selnotify,
486 [SelectionRequest] = selrequest,
493 static CSIEscape csiescseq;
494 static STREscape strescseq;
497 static Selection sel;
498 static int iofd = STDOUT_FILENO;
499 static char **opt_cmd = NULL;
500 static char *opt_io = NULL;
501 static char *opt_title = NULL;
502 static char *opt_embed = NULL;
503 static char *opt_class = NULL;
504 static char *opt_font = NULL;
505 static int oldbutton = 3; /* button event on startup: 3 = release */
507 static char *usedfont = NULL;
508 static double usedfontsize = 0;
509 static double defaultfontsize = 0;
511 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
512 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
513 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
514 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
516 /* Font Ring Cache */
529 /* Fontcache is an array now. A new font will be appended to the array. */
530 static Fontcache frc[16];
531 static int frclen = 0;
534 xwrite(int fd, const char *s, size_t len) {
538 ssize_t r = write(fd, s, len);
548 xmalloc(size_t len) {
549 void *p = malloc(len);
552 die("Out of memory\n");
558 xrealloc(void *p, size_t len) {
559 if((p = realloc(p, len)) == NULL)
560 die("Out of memory\n");
567 if((s = strdup(s)) == NULL)
568 die("Out of memory\n");
574 utf8decode(char *c, long *u, size_t clen) {
575 size_t i, j, len, type;
581 udecoded = utf8decodebyte(c[0], &len);
582 if(!BETWEEN(len, 1, UTF_SIZ))
584 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
585 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
592 utf8validate(u, len);
597 utf8decodebyte(char c, size_t *i) {
598 for(*i = 0; *i < LEN(utfmask); ++(*i))
599 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
600 return (uchar)c & ~utfmask[*i];
605 utf8encode(long u, char *c, size_t clen) {
608 len = utf8validate(&u, 0);
611 for(i = len - 1; i != 0; --i) {
612 c[i] = utf8encodebyte(u, 0);
615 c[0] = utf8encodebyte(u, len);
620 utf8encodebyte(long u, size_t i) {
621 return utfbyte[i] | (u & ~utfmask[i]);
626 return utf8decode(c, &(long){0}, UTF_SIZ);
630 utf8validate(long *u, size_t i) {
631 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
633 for(i = 1; *u > utfmax[i]; ++i)
640 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
641 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
645 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
646 if(sel.xtarget == None)
647 sel.xtarget = XA_STRING;
655 return LIMIT(x, 0, term.col-1);
663 return LIMIT(y, 0, term.row-1);
666 static int tlinelen(int y) {
669 if(term.line[y][i - 1].mode & ATTR_WRAP)
672 while(i > 0 && term.line[y][i - 1].c[0] == ' ')
682 if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
683 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
684 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
686 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
687 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
689 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
690 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
692 selsnap(sel.snap, &sel.nb.x, &sel.nb.y, -1);
693 selsnap(sel.snap, &sel.ne.x, &sel.ne.y, +1);
695 /* expand selection over line breaks */
696 if (sel.type == SEL_RECTANGULAR)
698 i = tlinelen(sel.nb.y);
701 if (tlinelen(sel.ne.y) <= sel.ne.x)
702 sel.ne.x = term.col - 1;
706 selected(int x, int y) {
707 if(sel.type == SEL_RECTANGULAR)
708 return BETWEEN(y, sel.nb.y, sel.ne.y)
709 && BETWEEN(x, sel.nb.x, sel.ne.x);
711 return BETWEEN(y, sel.nb.y, sel.ne.y)
712 && (y != sel.nb.y || x >= sel.nb.x)
713 && (y != sel.ne.y || x <= sel.ne.x);
717 selsnap(int mode, int *x, int *y, int direction) {
718 int newx, newy, xt, yt;
719 bool delim, prevdelim;
725 * Snap around if the word wraps around at the end or
726 * beginning of a line.
728 prevgp = &term.line[*y][*x];
729 prevdelim = strchr(worddelimiters, prevgp->c[0]) != NULL;
731 newx = *x + direction;
733 if(!BETWEEN(newx, 0, term.col - 1)) {
735 newx = (newx + term.col) % term.col;
736 if (!BETWEEN(newy, 0, term.row - 1))
742 yt = newy, xt = newx;
743 if(!(term.line[yt][xt].mode & ATTR_WRAP))
747 if (newx >= tlinelen(newy))
750 gp = &term.line[newy][newx];
751 delim = strchr(worddelimiters, gp->c[0]) != NULL;
752 if(!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
753 || (delim && gp->c[0] != prevgp->c[0])))
764 * Snap around if the the previous line or the current one
765 * has set ATTR_WRAP at its end. Then the whole next or
766 * previous line will be selected.
768 *x = (direction < 0) ? 0 : term.col - 1;
769 if(direction < 0 && *y > 0) {
770 for(; *y > 0; *y += direction) {
771 if(!(term.line[*y-1][term.col-1].mode
776 } else if(direction > 0 && *y < term.row-1) {
777 for(; *y < term.row; *y += direction) {
778 if(!(term.line[*y][term.col-1].mode
789 getbuttoninfo(XEvent *e) {
791 uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
793 sel.alt = IS_SET(MODE_ALTSCREEN);
795 sel.oe.x = x2col(e->xbutton.x);
796 sel.oe.y = y2row(e->xbutton.y);
799 sel.type = SEL_REGULAR;
800 for(type = 1; type < LEN(selmasks); ++type) {
801 if(match(selmasks[type], state)) {
809 mousereport(XEvent *e) {
810 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
811 button = e->xbutton.button, state = e->xbutton.state,
817 if(e->xbutton.type == MotionNotify) {
818 if(x == ox && y == oy)
820 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
822 /* MOUSE_MOTION: no reporting if no button is pressed */
823 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
826 button = oldbutton + 32;
830 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
837 if(e->xbutton.type == ButtonPress) {
841 } else if(e->xbutton.type == ButtonRelease) {
843 /* MODE_MOUSEX10: no button release reporting */
844 if(IS_SET(MODE_MOUSEX10))
846 if (button == 64 || button == 65)
851 if(!IS_SET(MODE_MOUSEX10)) {
852 button += (state & ShiftMask ? 4 : 0)
853 + (state & Mod4Mask ? 8 : 0)
854 + (state & ControlMask ? 16 : 0);
858 if(IS_SET(MODE_MOUSESGR)) {
859 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
861 e->xbutton.type == ButtonRelease ? 'm' : 'M');
862 } else if(x < 223 && y < 223) {
863 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
864 32+button, 32+x+1, 32+y+1);
877 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
882 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
883 if(e->xbutton.button == mk->b
884 && match(mk->mask, e->xbutton.state)) {
885 ttysend(mk->s, strlen(mk->s));
890 if(e->xbutton.button == Button1) {
891 clock_gettime(CLOCK_MONOTONIC, &now);
893 /* Clear previous selection, logically and visually. */
896 sel.type = SEL_REGULAR;
897 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
898 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
901 * If the user clicks below predefined timeouts specific
902 * snapping behaviour is exposed.
904 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
905 sel.snap = SNAP_LINE;
906 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
907 sel.snap = SNAP_WORD;
914 * Draw selection, unless it's regular and we don't want to
915 * make clicks visible
919 tsetdirt(sel.nb.y, sel.ne.y);
921 sel.tclick2 = sel.tclick1;
929 int y, bufsize, size, lastx, linelen;
935 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
936 ptr = str = xmalloc(bufsize);
938 /* append every set & selected glyph to the selection */
939 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
940 linelen = tlinelen(y);
942 if(sel.type == SEL_RECTANGULAR) {
943 gp = &term.line[y][sel.nb.x];
946 gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
947 lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
949 last = &term.line[y][MIN(lastx, linelen-1)];
951 for( ; gp <= last; ++gp) {
952 if(gp->mode & ATTR_WDUMMY)
955 size = utf8len(gp->c);
956 memcpy(ptr, gp->c, size);
961 * Copy and pasting of line endings is inconsistent
962 * in the inconsistent terminal and GUI world.
963 * The best solution seems like to produce '\n' when
964 * something is copied from st and convert '\n' to
965 * '\r', when something to be pasted is received by
967 * FIXME: Fix the computer world.
969 if((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP))
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);
1149 char **args, *sh, *prog;
1150 const struct passwd *pw;
1151 char buf[sizeof(long) * 8 + 1];
1154 if((pw = getpwuid(getuid())) == NULL) {
1156 die("getpwuid:%s\n", strerror(errno));
1158 die("who are you?\n");
1161 sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
1168 args = (opt_cmd) ? opt_cmd : (char *[]) {prog, NULL};
1170 snprintf(buf, sizeof(buf), "%lu", xw.win);
1172 unsetenv("COLUMNS");
1174 unsetenv("TERMCAP");
1175 setenv("LOGNAME", pw->pw_name, 1);
1176 setenv("USER", pw->pw_name, 1);
1177 setenv("SHELL", sh, 1);
1178 setenv("HOME", pw->pw_dir, 1);
1179 setenv("TERM", termname, 1);
1180 setenv("WINDOWID", buf, 1);
1182 signal(SIGCHLD, SIG_DFL);
1183 signal(SIGHUP, SIG_DFL);
1184 signal(SIGINT, SIG_DFL);
1185 signal(SIGQUIT, SIG_DFL);
1186 signal(SIGTERM, SIG_DFL);
1187 signal(SIGALRM, SIG_DFL);
1197 if(waitpid(pid, &stat, 0) < 0)
1198 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1200 ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
1201 if (ret != EXIT_SUCCESS)
1202 die("child finished with error '%d'\n", stat);
1209 struct winsize w = {term.row, term.col, 0, 0};
1211 /* seems to work fine on linux, openbsd and freebsd */
1212 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1213 die("openpty failed: %s\n", strerror(errno));
1215 switch(pid = fork()) {
1217 die("fork failed\n");
1220 setsid(); /* create a new process group */
1221 dup2(s, STDIN_FILENO);
1222 dup2(s, STDOUT_FILENO);
1223 dup2(s, STDERR_FILENO);
1224 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1225 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1233 signal(SIGCHLD, sigchld);
1235 term.mode |= MODE_PRINT;
1236 iofd = (!strcmp(opt_io, "-")) ?
1238 open(opt_io, O_WRONLY | O_CREAT, 0666);
1240 fprintf(stderr, "Error opening %s:%s\n",
1241 opt_io, strerror(errno));
1250 static char buf[BUFSIZ];
1251 static int buflen = 0;
1254 int charsize; /* size of utf8 char in bytes */
1258 /* append read bytes to unprocessed bytes */
1259 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1260 die("Couldn't read from shell: %s\n", strerror(errno));
1262 /* process every complete utf8 char */
1265 while((charsize = utf8decode(ptr, &unicodep, buflen))) {
1266 utf8encode(unicodep, s, UTF_SIZ);
1272 /* keep any uncomplete utf8 char for the next call */
1273 memmove(buf, ptr, buflen);
1277 ttywrite(const char *s, size_t n) {
1278 if(xwrite(cmdfd, s, n) == -1)
1279 die("write error on tty: %s\n", strerror(errno));
1283 ttysend(char *s, size_t n) {
1285 if(IS_SET(MODE_ECHO))
1293 w.ws_row = term.row;
1294 w.ws_col = term.col;
1295 w.ws_xpixel = xw.tw;
1296 w.ws_ypixel = xw.th;
1297 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1298 fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
1302 tattrset(int attr) {
1305 for(i = 0; i < term.row-1; i++) {
1306 for(j = 0; j < term.col-1; j++) {
1307 if(term.line[i][j].mode & attr)
1316 tsetdirt(int top, int bot) {
1319 LIMIT(top, 0, term.row-1);
1320 LIMIT(bot, 0, term.row-1);
1322 for(i = top; i <= bot; i++)
1327 tsetdirtattr(int attr) {
1330 for(i = 0; i < term.row-1; i++) {
1331 for(j = 0; j < term.col-1; j++) {
1332 if(term.line[i][j].mode & attr) {
1342 tsetdirt(0, term.row-1);
1347 static TCursor c[2];
1348 bool alt = IS_SET(MODE_ALTSCREEN);
1350 if(mode == CURSOR_SAVE) {
1352 } else if(mode == CURSOR_LOAD) {
1354 tmoveto(c[alt].x, c[alt].y);
1362 term.c = (TCursor){{
1366 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1368 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1369 for(i = tabspaces; i < term.col; i += tabspaces)
1372 term.bot = term.row - 1;
1373 term.mode = MODE_WRAP;
1374 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1377 for(i = 0; i < 2; i++) {
1379 tcursor(CURSOR_SAVE);
1380 tclearregion(0, 0, term.col-1, term.row-1);
1386 tnew(int col, int row) {
1387 term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
1396 Line *tmp = term.line;
1398 term.line = term.alt;
1400 term.mode ^= MODE_ALTSCREEN;
1405 tscrolldown(int orig, int n) {
1409 LIMIT(n, 0, term.bot-orig+1);
1411 tsetdirt(orig, term.bot-n);
1412 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1414 for(i = term.bot; i >= orig+n; i--) {
1415 temp = term.line[i];
1416 term.line[i] = term.line[i-n];
1417 term.line[i-n] = temp;
1424 tscrollup(int orig, int n) {
1428 LIMIT(n, 0, term.bot-orig+1);
1430 tclearregion(0, orig, term.col-1, orig+n-1);
1431 tsetdirt(orig+n, term.bot);
1433 for(i = orig; i <= term.bot-n; i++) {
1434 temp = term.line[i];
1435 term.line[i] = term.line[i+n];
1436 term.line[i+n] = temp;
1439 selscroll(orig, -n);
1443 selscroll(int orig, int n) {
1447 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1448 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1452 if(sel.type == SEL_RECTANGULAR) {
1453 if(sel.ob.y < term.top)
1454 sel.ob.y = term.top;
1455 if(sel.oe.y > term.bot)
1456 sel.oe.y = term.bot;
1458 if(sel.ob.y < term.top) {
1459 sel.ob.y = term.top;
1462 if(sel.oe.y > term.bot) {
1463 sel.oe.y = term.bot;
1464 sel.oe.x = term.col;
1472 tnewline(int first_col) {
1476 tscrollup(term.top, 1);
1480 tmoveto(first_col ? 0 : term.c.x, y);
1485 char *p = csiescseq.buf, *np;
1494 csiescseq.buf[csiescseq.len] = '\0';
1495 while(p < csiescseq.buf+csiescseq.len) {
1497 v = strtol(p, &np, 10);
1500 if(v == LONG_MAX || v == LONG_MIN)
1502 csiescseq.arg[csiescseq.narg++] = v;
1504 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1508 csiescseq.mode = *p;
1511 /* for absolute user moves, when decom is set */
1513 tmoveato(int x, int y) {
1514 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1518 tmoveto(int x, int y) {
1521 if(term.c.state & CURSOR_ORIGIN) {
1526 maxy = term.row - 1;
1528 LIMIT(x, 0, term.col-1);
1529 LIMIT(y, miny, maxy);
1530 term.c.state &= ~CURSOR_WRAPNEXT;
1536 tsetchar(char *c, Glyph *attr, int x, int y) {
1537 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1538 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1539 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1540 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1541 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1542 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1543 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1544 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1545 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1549 * The table is proudly stolen from rxvt.
1551 if(term.trantbl[term.charset] == CS_GRAPHIC0) {
1552 if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
1553 c = vt100_0[c[0] - 0x41];
1557 if(term.line[y][x].mode & ATTR_WIDE) {
1558 if(x+1 < term.col) {
1559 term.line[y][x+1].c[0] = ' ';
1560 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1562 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1563 term.line[y][x-1].c[0] = ' ';
1564 term.line[y][x-1].mode &= ~ATTR_WIDE;
1568 term.line[y][x] = *attr;
1569 memcpy(term.line[y][x].c, c, UTF_SIZ);
1573 tclearregion(int x1, int y1, int x2, int y2) {
1578 temp = x1, x1 = x2, x2 = temp;
1580 temp = y1, y1 = y2, y2 = temp;
1582 LIMIT(x1, 0, term.col-1);
1583 LIMIT(x2, 0, term.col-1);
1584 LIMIT(y1, 0, term.row-1);
1585 LIMIT(y2, 0, term.row-1);
1587 for(y = y1; y <= y2; y++) {
1589 for(x = x1; x <= x2; x++) {
1590 gp = &term.line[y][x];
1593 gp->fg = term.c.attr.fg;
1594 gp->bg = term.c.attr.bg;
1596 memcpy(gp->c, " ", 2);
1602 tdeletechar(int n) {
1606 LIMIT(n, 0, term.col - term.c.x);
1610 size = term.col - src;
1611 line = term.line[term.c.y];
1613 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1614 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1618 tinsertblank(int n) {
1622 LIMIT(n, 0, term.col - term.c.x);
1626 size = term.col - dst;
1627 line = term.line[term.c.y];
1629 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1630 tclearregion(src, term.c.y, dst - 1, term.c.y);
1634 tinsertblankline(int n) {
1635 if(BETWEEN(term.c.y, term.top, term.bot))
1636 tscrolldown(term.c.y, n);
1640 tdeleteline(int n) {
1641 if(BETWEEN(term.c.y, term.top, term.bot))
1642 tscrollup(term.c.y, n);
1646 tdefcolor(int *attr, int *npar, int l) {
1650 switch (attr[*npar + 1]) {
1651 case 2: /* direct color in RGB space */
1652 if (*npar + 4 >= l) {
1654 "erresc(38): Incorrect number of parameters (%d)\n",
1658 r = attr[*npar + 2];
1659 g = attr[*npar + 3];
1660 b = attr[*npar + 4];
1662 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1663 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1666 idx = TRUECOLOR(r, g, b);
1668 case 5: /* indexed color */
1669 if (*npar + 2 >= l) {
1671 "erresc(38): Incorrect number of parameters (%d)\n",
1676 if(!BETWEEN(attr[*npar], 0, 255))
1677 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1681 case 0: /* implemented defined (only foreground) */
1682 case 1: /* transparent */
1683 case 3: /* direct color in CMY space */
1684 case 4: /* direct color in CMYK space */
1687 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1695 tsetattr(int *attr, int l) {
1699 for(i = 0; i < l; i++) {
1702 term.c.attr.mode &= ~(
1711 term.c.attr.fg = defaultfg;
1712 term.c.attr.bg = defaultbg;
1715 term.c.attr.mode |= ATTR_BOLD;
1718 term.c.attr.mode |= ATTR_FAINT;
1721 term.c.attr.mode |= ATTR_ITALIC;
1724 term.c.attr.mode |= ATTR_UNDERLINE;
1726 case 5: /* slow blink */
1728 case 6: /* rapid blink */
1729 term.c.attr.mode |= ATTR_BLINK;
1732 term.c.attr.mode |= ATTR_REVERSE;
1735 term.c.attr.mode |= ATTR_INVISIBLE;
1738 term.c.attr.mode |= ATTR_STRUCK;
1741 term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
1744 term.c.attr.mode &= ~ATTR_ITALIC;
1747 term.c.attr.mode &= ~ATTR_UNDERLINE;
1750 term.c.attr.mode &= ~ATTR_BLINK;
1753 term.c.attr.mode &= ~ATTR_REVERSE;
1756 term.c.attr.mode &= ~ATTR_INVISIBLE;
1759 term.c.attr.mode &= ~ATTR_STRUCK;
1762 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1763 term.c.attr.fg = idx;
1766 term.c.attr.fg = defaultfg;
1769 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1770 term.c.attr.bg = idx;
1773 term.c.attr.bg = defaultbg;
1776 if(BETWEEN(attr[i], 30, 37)) {
1777 term.c.attr.fg = attr[i] - 30;
1778 } else if(BETWEEN(attr[i], 40, 47)) {
1779 term.c.attr.bg = attr[i] - 40;
1780 } else if(BETWEEN(attr[i], 90, 97)) {
1781 term.c.attr.fg = attr[i] - 90 + 8;
1782 } else if(BETWEEN(attr[i], 100, 107)) {
1783 term.c.attr.bg = attr[i] - 100 + 8;
1786 "erresc(default): gfx attr %d unknown\n",
1787 attr[i]), csidump();
1795 tsetscroll(int t, int b) {
1798 LIMIT(t, 0, term.row-1);
1799 LIMIT(b, 0, term.row-1);
1810 tsetmode(bool priv, bool set, int *args, int narg) {
1814 for(lim = args + narg; args < lim; ++args) {
1817 case 1: /* DECCKM -- Cursor key */
1818 MODBIT(term.mode, set, MODE_APPCURSOR);
1820 case 5: /* DECSCNM -- Reverse video */
1822 MODBIT(term.mode, set, MODE_REVERSE);
1823 if(mode != term.mode)
1824 redraw(REDRAW_TIMEOUT);
1826 case 6: /* DECOM -- Origin */
1827 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1830 case 7: /* DECAWM -- Auto wrap */
1831 MODBIT(term.mode, set, MODE_WRAP);
1833 case 0: /* Error (IGNORED) */
1834 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1835 case 3: /* DECCOLM -- Column (IGNORED) */
1836 case 4: /* DECSCLM -- Scroll (IGNORED) */
1837 case 8: /* DECARM -- Auto repeat (IGNORED) */
1838 case 18: /* DECPFF -- Printer feed (IGNORED) */
1839 case 19: /* DECPEX -- Printer extent (IGNORED) */
1840 case 42: /* DECNRCM -- National characters (IGNORED) */
1841 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1843 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1844 MODBIT(term.mode, !set, MODE_HIDE);
1846 case 9: /* X10 mouse compatibility mode */
1847 xsetpointermotion(0);
1848 MODBIT(term.mode, 0, MODE_MOUSE);
1849 MODBIT(term.mode, set, MODE_MOUSEX10);
1851 case 1000: /* 1000: report button press */
1852 xsetpointermotion(0);
1853 MODBIT(term.mode, 0, MODE_MOUSE);
1854 MODBIT(term.mode, set, MODE_MOUSEBTN);
1856 case 1002: /* 1002: report motion on button press */
1857 xsetpointermotion(0);
1858 MODBIT(term.mode, 0, MODE_MOUSE);
1859 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1861 case 1003: /* 1003: enable all mouse motions */
1862 xsetpointermotion(set);
1863 MODBIT(term.mode, 0, MODE_MOUSE);
1864 MODBIT(term.mode, set, MODE_MOUSEMANY);
1866 case 1004: /* 1004: send focus events to tty */
1867 MODBIT(term.mode, set, MODE_FOCUS);
1869 case 1006: /* 1006: extended reporting mode */
1870 MODBIT(term.mode, set, MODE_MOUSESGR);
1873 MODBIT(term.mode, set, MODE_8BIT);
1875 case 1049: /* swap screen & set/restore cursor as xterm */
1876 if (!allowaltscreen)
1878 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1880 case 47: /* swap screen */
1882 if (!allowaltscreen)
1884 alt = IS_SET(MODE_ALTSCREEN);
1886 tclearregion(0, 0, term.col-1,
1889 if(set ^ alt) /* set is always 1 or 0 */
1895 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1897 case 2004: /* 2004: bracketed paste mode */
1898 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1900 /* Not implemented mouse modes. See comments there. */
1901 case 1001: /* mouse highlight mode; can hang the
1902 terminal by design when implemented. */
1903 case 1005: /* UTF-8 mouse mode; will confuse
1904 applications not supporting UTF-8
1906 case 1015: /* urxvt mangled mouse mode; incompatible
1907 and can be mistaken for other control
1911 "erresc: unknown private set/reset mode %d\n",
1917 case 0: /* Error (IGNORED) */
1919 case 2: /* KAM -- keyboard action */
1920 MODBIT(term.mode, set, MODE_KBDLOCK);
1922 case 4: /* IRM -- Insertion-replacement */
1923 MODBIT(term.mode, set, MODE_INSERT);
1925 case 12: /* SRM -- Send/Receive */
1926 MODBIT(term.mode, !set, MODE_ECHO);
1928 case 20: /* LNM -- Linefeed/new line */
1929 MODBIT(term.mode, set, MODE_CRLF);
1933 "erresc: unknown set/reset mode %d\n",
1946 switch(csiescseq.mode) {
1949 fprintf(stderr, "erresc: unknown csi ");
1953 case '@': /* ICH -- Insert <n> blank char */
1954 DEFAULT(csiescseq.arg[0], 1);
1955 tinsertblank(csiescseq.arg[0]);
1957 case 'A': /* CUU -- Cursor <n> Up */
1958 DEFAULT(csiescseq.arg[0], 1);
1959 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1961 case 'B': /* CUD -- Cursor <n> Down */
1962 case 'e': /* VPR --Cursor <n> Down */
1963 DEFAULT(csiescseq.arg[0], 1);
1964 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1966 case 'i': /* MC -- Media Copy */
1967 switch(csiescseq.arg[0]) {
1972 tdumpline(term.c.y);
1978 term.mode &= ~MODE_PRINT;
1981 term.mode |= MODE_PRINT;
1985 case 'c': /* DA -- Device Attributes */
1986 if(csiescseq.arg[0] == 0)
1987 ttywrite(vtiden, sizeof(vtiden) - 1);
1989 case 'C': /* CUF -- Cursor <n> Forward */
1990 case 'a': /* HPR -- Cursor <n> Forward */
1991 DEFAULT(csiescseq.arg[0], 1);
1992 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1994 case 'D': /* CUB -- Cursor <n> Backward */
1995 DEFAULT(csiescseq.arg[0], 1);
1996 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1998 case 'E': /* CNL -- Cursor <n> Down and first col */
1999 DEFAULT(csiescseq.arg[0], 1);
2000 tmoveto(0, term.c.y+csiescseq.arg[0]);
2002 case 'F': /* CPL -- Cursor <n> Up and first col */
2003 DEFAULT(csiescseq.arg[0], 1);
2004 tmoveto(0, term.c.y-csiescseq.arg[0]);
2006 case 'g': /* TBC -- Tabulation clear */
2007 switch(csiescseq.arg[0]) {
2008 case 0: /* clear current tab stop */
2009 term.tabs[term.c.x] = 0;
2011 case 3: /* clear all the tabs */
2012 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
2018 case 'G': /* CHA -- Move to <col> */
2020 DEFAULT(csiescseq.arg[0], 1);
2021 tmoveto(csiescseq.arg[0]-1, term.c.y);
2023 case 'H': /* CUP -- Move to <row> <col> */
2025 DEFAULT(csiescseq.arg[0], 1);
2026 DEFAULT(csiescseq.arg[1], 1);
2027 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
2029 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
2030 DEFAULT(csiescseq.arg[0], 1);
2031 tputtab(csiescseq.arg[0]);
2033 case 'J': /* ED -- Clear screen */
2035 switch(csiescseq.arg[0]) {
2037 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2038 if(term.c.y < term.row-1) {
2039 tclearregion(0, term.c.y+1, term.col-1,
2045 tclearregion(0, 0, term.col-1, term.c.y-1);
2046 tclearregion(0, term.c.y, term.c.x, term.c.y);
2049 tclearregion(0, 0, term.col-1, term.row-1);
2055 case 'K': /* EL -- Clear line */
2056 switch(csiescseq.arg[0]) {
2058 tclearregion(term.c.x, term.c.y, term.col-1,
2062 tclearregion(0, term.c.y, term.c.x, term.c.y);
2065 tclearregion(0, term.c.y, term.col-1, term.c.y);
2069 case 'S': /* SU -- Scroll <n> line up */
2070 DEFAULT(csiescseq.arg[0], 1);
2071 tscrollup(term.top, csiescseq.arg[0]);
2073 case 'T': /* SD -- Scroll <n> line down */
2074 DEFAULT(csiescseq.arg[0], 1);
2075 tscrolldown(term.top, csiescseq.arg[0]);
2077 case 'L': /* IL -- Insert <n> blank lines */
2078 DEFAULT(csiescseq.arg[0], 1);
2079 tinsertblankline(csiescseq.arg[0]);
2081 case 'l': /* RM -- Reset Mode */
2082 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2084 case 'M': /* DL -- Delete <n> lines */
2085 DEFAULT(csiescseq.arg[0], 1);
2086 tdeleteline(csiescseq.arg[0]);
2088 case 'X': /* ECH -- Erase <n> char */
2089 DEFAULT(csiescseq.arg[0], 1);
2090 tclearregion(term.c.x, term.c.y,
2091 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2093 case 'P': /* DCH -- Delete <n> char */
2094 DEFAULT(csiescseq.arg[0], 1);
2095 tdeletechar(csiescseq.arg[0]);
2097 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2098 DEFAULT(csiescseq.arg[0], 1);
2099 tputtab(-csiescseq.arg[0]);
2101 case 'd': /* VPA -- Move to <row> */
2102 DEFAULT(csiescseq.arg[0], 1);
2103 tmoveato(term.c.x, csiescseq.arg[0]-1);
2105 case 'h': /* SM -- Set terminal mode */
2106 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2108 case 'm': /* SGR -- Terminal attribute (color) */
2109 tsetattr(csiescseq.arg, csiescseq.narg);
2111 case 'n': /* DSR – Device Status Report (cursor position) */
2112 if (csiescseq.arg[0] == 6) {
2113 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2114 term.c.y+1, term.c.x+1);
2118 case 'r': /* DECSTBM -- Set Scrolling Region */
2119 if(csiescseq.priv) {
2122 DEFAULT(csiescseq.arg[0], 1);
2123 DEFAULT(csiescseq.arg[1], term.row);
2124 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2128 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2129 tcursor(CURSOR_SAVE);
2131 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2132 tcursor(CURSOR_LOAD);
2143 for(i = 0; i < csiescseq.len; i++) {
2144 c = csiescseq.buf[i] & 0xff;
2147 } else if(c == '\n') {
2149 } else if(c == '\r') {
2151 } else if(c == 0x1b) {
2154 printf("(%02x)", c);
2162 memset(&csiescseq, 0, sizeof(csiescseq));
2170 term.esc &= ~(ESC_STR_END|ESC_STR);
2172 narg = strescseq.narg;
2173 par = atoi(strescseq.args[0]);
2175 switch(strescseq.type) {
2176 case ']': /* OSC -- Operating System Command */
2182 xsettitle(strescseq.args[1]);
2184 case 4: /* color set */
2187 p = strescseq.args[2];
2189 case 104: /* color reset, here p = NULL */
2190 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2191 if(xsetcolorname(j, p)) {
2192 fprintf(stderr, "erresc: invalid color %s\n", p);
2195 * TODO if defaultbg color is changed, borders
2203 case 'k': /* old title set compatibility */
2204 xsettitle(strescseq.args[0]);
2206 case 'P': /* DCS -- Device Control String */
2207 case '_': /* APC -- Application Program Command */
2208 case '^': /* PM -- Privacy Message */
2212 fprintf(stderr, "erresc: unknown str ");
2218 char *p = strescseq.buf;
2221 strescseq.buf[strescseq.len] = '\0';
2222 while(p && strescseq.narg < STR_ARG_SIZ)
2223 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2231 printf("ESC%c", strescseq.type);
2232 for(i = 0; i < strescseq.len; i++) {
2233 c = strescseq.buf[i] & 0xff;
2236 } else if(isprint(c)) {
2238 } else if(c == '\n') {
2240 } else if(c == '\r') {
2242 } else if(c == 0x1b) {
2245 printf("(%02x)", c);
2253 memset(&strescseq, 0, sizeof(strescseq));
2257 tprinter(char *s, size_t len) {
2258 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2259 fprintf(stderr, "Error writing in %s:%s\n",
2260 opt_io, strerror(errno));
2267 toggleprinter(const Arg *arg) {
2268 term.mode ^= MODE_PRINT;
2272 printscreen(const Arg *arg) {
2277 printsel(const Arg *arg) {
2285 if((ptr = getsel())) {
2286 tprinter(ptr, strlen(ptr));
2295 bp = &term.line[n][0];
2296 end = &bp[MIN(tlinelen(n), term.col) - 1];
2297 if(bp != end || bp->c[0] != ' ') {
2298 for( ;bp <= end; ++bp)
2299 tprinter(bp->c, utf8len(bp->c));
2308 for(i = 0; i < term.row; ++i)
2317 while(x < term.col && n--)
2318 for(++x; x < term.col && !term.tabs[x]; ++x)
2322 for(--x; x > 0 && !term.tabs[x]; --x)
2325 tmoveto(x, term.c.y);
2329 techo(char *buf, int len) {
2330 for(; len > 0; buf++, len--) {
2333 if(ISCONTROL((uchar) c)) { /* control code */
2338 } else if(c != '\n' && c != '\r' && c != '\t') {
2352 tdeftran(char ascii) {
2353 static char cs[] = "0B";
2354 static int vcs[] = {CS_GRAPHIC0, CS_USA};
2357 if((p = strchr(cs, ascii)) == NULL) {
2358 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2360 term.trantbl[term.icharset] = vcs[p - cs];
2366 static char E[UTF_SIZ] = "E";
2369 if(c == '8') { /* DEC screen alignment test. */
2370 for(x = 0; x < term.col; ++x) {
2371 for(y = 0; y < term.row; ++y)
2372 tsetchar(E, &term.c.attr, x, y);
2378 tstrsequence(uchar c) {
2381 case 0x90: /* DCS -- Device Control String */
2384 case 0x9f: /* APC -- Application Program Command */
2387 case 0x9e: /* PM -- Privacy Message */
2390 case 0x9d: /* OSC -- Operating System Command */
2397 term.esc |= ESC_STR;
2402 tcontrolcode(uchar ascii) {
2403 static char question[UTF_SIZ] = "?";
2410 tmoveto(term.c.x-1, term.c.y);
2413 tmoveto(0, term.c.y);
2418 /* go to first col if the mode is set */
2419 tnewline(IS_SET(MODE_CRLF));
2421 case '\a': /* BEL */
2422 if(term.esc & ESC_STR_END) {
2423 /* backwards compatibility to xterm */
2426 if(!(xw.state & WIN_FOCUSED))
2429 XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
2432 case '\033': /* ESC */
2434 term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
2435 term.esc |= ESC_START;
2437 case '\016': /* SO (LS1 -- Locking shift 1) */
2438 case '\017': /* SI (LS0 -- Locking shift 0) */
2439 term.charset = 1 - (ascii - '\016');
2441 case '\032': /* SUB */
2442 tsetchar(question, &term.c.attr, term.c.x, term.c.y);
2443 case '\030': /* CAN */
2446 case '\005': /* ENQ (IGNORED) */
2447 case '\000': /* NUL (IGNORED) */
2448 case '\021': /* XON (IGNORED) */
2449 case '\023': /* XOFF (IGNORED) */
2450 case 0177: /* DEL (IGNORED) */
2452 case 0x84: /* TODO: IND */
2454 case 0x85: /* NEL -- Next line */
2455 tnewline(1); /* always go to first col */
2457 case 0x88: /* HTS -- Horizontal tab stop */
2458 term.tabs[term.c.x] = 1;
2460 case 0x8d: /* TODO: RI */
2461 case 0x8e: /* TODO: SS2 */
2462 case 0x8f: /* TODO: SS3 */
2463 case 0x98: /* TODO: SOS */
2465 case 0x9a: /* DECID -- Identify Terminal */
2466 ttywrite(vtiden, sizeof(vtiden) - 1);
2468 case 0x9b: /* TODO: CSI */
2469 case 0x9c: /* TODO: ST */
2471 case 0x90: /* DCS -- Device Control String */
2472 case 0x9f: /* APC -- Application Program Command */
2473 case 0x9e: /* PM -- Privacy Message */
2474 case 0x9d: /* OSC -- Operating System Command */
2475 tstrsequence(ascii);
2478 /* only CAN, SUB, \a and C1 chars interrupt a sequence */
2479 term.esc &= ~(ESC_STR_END|ESC_STR);
2484 * returns 1 when the sequence is finished and it hasn't to read
2485 * more characters for this sequence, otherwise 0
2488 eschandle(uchar ascii) {
2491 term.esc |= ESC_CSI;
2494 term.esc |= ESC_TEST;
2496 case 'P': /* DCS -- Device Control String */
2497 case '_': /* APC -- Application Program Command */
2498 case '^': /* PM -- Privacy Message */
2499 case ']': /* OSC -- Operating System Command */
2500 case 'k': /* old title set compatibility */
2501 tstrsequence(ascii);
2503 case 'n': /* LS2 -- Locking shift 2 */
2504 case 'o': /* LS3 -- Locking shift 3 */
2505 term.charset = 2 + (ascii - 'n');
2507 case '(': /* GZD4 -- set primary charset G0 */
2508 case ')': /* G1D4 -- set secondary charset G1 */
2509 case '*': /* G2D4 -- set tertiary charset G2 */
2510 case '+': /* G3D4 -- set quaternary charset G3 */
2511 term.icharset = ascii - '(';
2512 term.esc |= ESC_ALTCHARSET;
2514 case 'D': /* IND -- Linefeed */
2515 if(term.c.y == term.bot) {
2516 tscrollup(term.top, 1);
2518 tmoveto(term.c.x, term.c.y+1);
2521 case 'E': /* NEL -- Next line */
2522 tnewline(1); /* always go to first col */
2524 case 'H': /* HTS -- Horizontal tab stop */
2525 term.tabs[term.c.x] = 1;
2527 case 'M': /* RI -- Reverse index */
2528 if(term.c.y == term.top) {
2529 tscrolldown(term.top, 1);
2531 tmoveto(term.c.x, term.c.y-1);
2534 case 'Z': /* DECID -- Identify Terminal */
2535 ttywrite(vtiden, sizeof(vtiden) - 1);
2537 case 'c': /* RIS -- Reset to inital state */
2542 case '=': /* DECPAM -- Application keypad */
2543 term.mode |= MODE_APPKEYPAD;
2545 case '>': /* DECPNM -- Normal keypad */
2546 term.mode &= ~MODE_APPKEYPAD;
2548 case '7': /* DECSC -- Save Cursor */
2549 tcursor(CURSOR_SAVE);
2551 case '8': /* DECRC -- Restore Cursor */
2552 tcursor(CURSOR_LOAD);
2554 case '\\': /* ST -- String Terminator */
2555 if(term.esc & ESC_STR_END)
2559 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2560 (uchar) ascii, isprint(ascii)? ascii:'.');
2567 tputc(char *c, int len) {
2576 unicodep = ascii = *c;
2578 utf8decode(c, &unicodep, UTF_SIZ);
2579 width = wcwidth(unicodep);
2580 control = ISCONTROLC1(unicodep);
2584 if(IS_SET(MODE_PRINT))
2586 control = ISCONTROL(unicodep);
2589 * STR sequence must be checked before anything else
2590 * because it uses all following characters until it
2591 * receives a ESC, a SUB, a ST or any other C1 control
2594 if(term.esc & ESC_STR) {
2596 (ascii == '\a' || ascii == 030 ||
2597 ascii == 032 || ascii == 033 ||
2598 ISCONTROLC1(unicodep))) {
2599 term.esc &= ~(ESC_START|ESC_STR);
2600 term.esc |= ESC_STR_END;
2601 } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2602 memmove(&strescseq.buf[strescseq.len], c, len);
2603 strescseq.len += len;
2607 * Here is a bug in terminals. If the user never sends
2608 * some code to stop the str or esc command, then st
2609 * will stop responding. But this is better than
2610 * silently failing with unknown characters. At least
2611 * then users will report back.
2613 * In the case users ever get fixed, here is the code:
2624 * Actions of control codes must be performed as soon they arrive
2625 * because they can be embedded inside a control sequence, and
2626 * they must not cause conflicts with sequences.
2629 tcontrolcode(ascii);
2631 * control codes are not shown ever
2634 } else if(term.esc & ESC_START) {
2635 if(term.esc & ESC_CSI) {
2636 csiescseq.buf[csiescseq.len++] = ascii;
2637 if(BETWEEN(ascii, 0x40, 0x7E)
2638 || csiescseq.len >= \
2639 sizeof(csiescseq.buf)-1) {
2645 } else if(term.esc & ESC_ALTCHARSET) {
2647 } else if(term.esc & ESC_TEST) {
2650 if (!eschandle(ascii))
2652 /* sequence already finished */
2656 * All characters which form part of a sequence are not
2661 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2664 gp = &term.line[term.c.y][term.c.x];
2665 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2666 gp->mode |= ATTR_WRAP;
2670 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col)
2671 memmove(gp+1, gp, (term.col - term.c.x - 1) * sizeof(Glyph));
2673 if(term.c.x+width > term.col)
2676 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2679 gp->mode |= ATTR_WIDE;
2680 if(term.c.x+1 < term.col) {
2682 gp[1].mode = ATTR_WDUMMY;
2685 if(term.c.x+width < term.col) {
2686 tmoveto(term.c.x+width, term.c.y);
2688 term.c.state |= CURSOR_WRAPNEXT;
2693 tresize(int col, int row) {
2695 int minrow = MIN(row, term.row);
2696 int mincol = MIN(col, term.col);
2697 int slide = term.c.y - row + 1;
2701 if(col < 1 || row < 1) {
2703 "tresize: error resizing to %dx%d\n", col, row);
2707 /* free unneeded rows */
2711 * slide screen to keep cursor where we expect it -
2712 * tscrollup would work here, but we can optimize to
2713 * memmove because we're freeing the earlier lines
2715 for(/* i = 0 */; i < slide; i++) {
2719 memmove(term.line, term.line + slide, row * sizeof(Line));
2720 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2722 for(i += row; i < term.row; i++) {
2727 /* resize to new height */
2728 term.line = xrealloc(term.line, row * sizeof(Line));
2729 term.alt = xrealloc(term.alt, row * sizeof(Line));
2730 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2731 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2733 /* resize each row to new width, zero-pad if needed */
2734 for(i = 0; i < minrow; i++) {
2735 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2736 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2739 /* allocate any new rows */
2740 for(/* i == minrow */; i < row; i++) {
2741 term.line[i] = xmalloc(col * sizeof(Glyph));
2742 term.alt[i] = xmalloc(col * sizeof(Glyph));
2744 if(col > term.col) {
2745 bp = term.tabs + term.col;
2747 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2748 while(--bp > term.tabs && !*bp)
2750 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2753 /* update terminal size */
2756 /* reset scrolling region */
2757 tsetscroll(0, row-1);
2758 /* make use of the LIMIT in tmoveto */
2759 tmoveto(term.c.x, term.c.y);
2760 /* Clearing both screens (it makes dirty all lines) */
2762 for(i = 0; i < 2; i++) {
2763 if(mincol < col && 0 < minrow) {
2764 tclearregion(mincol, 0, col - 1, minrow - 1);
2766 if(0 < col && minrow < row) {
2767 tclearregion(0, minrow, col - 1, row - 1);
2770 tcursor(CURSOR_LOAD);
2776 xresize(int col, int row) {
2777 xw.tw = MAX(1, col * xw.cw);
2778 xw.th = MAX(1, row * xw.ch);
2780 XFreePixmap(xw.dpy, xw.buf);
2781 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2782 DefaultDepth(xw.dpy, xw.scr));
2783 XftDrawChange(xw.draw, xw.buf);
2784 xclear(0, 0, xw.w, xw.h);
2787 static inline ushort
2788 sixd_to_16bit(int x) {
2789 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2795 XRenderColor color = { .alpha = 0xffff };
2800 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2801 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2804 /* load colors [0-15] and [256-LEN(colorname)] (config.h) */
2805 for(i = 0; i < LEN(colorname); i++) {
2808 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2809 die("Could not allocate color '%s'\n", colorname[i]);
2813 /* load colors [16-231] ; same colors as xterm */
2814 for(i = 16; i < 6*6*6+16; i++) {
2815 color.red = sixd_to_16bit( ((i-16)/36)%6 );
2816 color.green = sixd_to_16bit( ((i-16)/6) %6 );
2817 color.blue = sixd_to_16bit( ((i-16)/1) %6 );
2818 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2819 die("Could not allocate color %d\n", i);
2822 /* load colors [232-255] ; grayscale */
2823 for(; i < 256; i++) {
2824 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
2825 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2826 die("Could not allocate color %d\n", i);
2832 xsetcolorname(int x, const char *name) {
2833 XRenderColor color = { .alpha = 0xffff };
2836 if(!BETWEEN(x, 0, LEN(colorname)))
2840 if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
2841 color.red = sixd_to_16bit( ((x-16)/36)%6 );
2842 color.green = sixd_to_16bit( ((x-16)/6) %6 );
2843 color.blue = sixd_to_16bit( ((x-16)/1) %6 );
2844 if(!XftColorAllocValue(xw.dpy, xw.vis,
2845 xw.cmap, &color, &ncolor)) {
2849 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2852 } else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
2853 color.red = color.green = color.blue = \
2854 0x0808 + 0x0a0a * (x - (16 + 216));
2855 if(!XftColorAllocValue(xw.dpy, xw.vis,
2856 xw.cmap, &color, &ncolor)) {
2860 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2863 } else { /* system colors */
2864 name = colorname[x];
2867 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
2870 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2876 xtermclear(int col1, int row1, int col2, int row2) {
2877 XftDrawRect(xw.draw,
2878 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2879 borderpx + col1 * xw.cw,
2880 borderpx + row1 * xw.ch,
2881 (col2-col1+1) * xw.cw,
2882 (row2-row1+1) * xw.ch);
2886 * Absolute coordinates.
2889 xclear(int x1, int y1, int x2, int y2) {
2890 XftDrawRect(xw.draw,
2891 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2892 x1, y1, x2-x1, y2-y1);
2897 XClassHint class = {opt_class ? opt_class : termname, termname};
2898 XWMHints wm = {.flags = InputHint, .input = 1};
2899 XSizeHints *sizeh = NULL;
2901 sizeh = XAllocSizeHints();
2903 sizeh->flags = PSize | PResizeInc | PBaseSize;
2904 sizeh->height = xw.h;
2905 sizeh->width = xw.w;
2906 sizeh->height_inc = xw.ch;
2907 sizeh->width_inc = xw.cw;
2908 sizeh->base_height = 2 * borderpx;
2909 sizeh->base_width = 2 * borderpx;
2910 if(xw.isfixed == True) {
2911 sizeh->flags |= PMaxSize | PMinSize;
2912 sizeh->min_width = sizeh->max_width = xw.w;
2913 sizeh->min_height = sizeh->max_height = xw.h;
2915 if(xw.gm & (XValue|YValue)) {
2916 sizeh->flags |= USPosition | PWinGravity;
2919 sizeh->win_gravity = xgeommasktogravity(xw.gm);
2922 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2928 xgeommasktogravity(int mask) {
2929 switch(mask & (XNegative|YNegative)) {
2931 return NorthWestGravity;
2933 return NorthEastGravity;
2935 return SouthWestGravity;
2937 return SouthEastGravity;
2941 xloadfont(Font *f, FcPattern *pattern) {
2945 match = FcFontMatch(NULL, pattern, &result);
2949 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2950 FcPatternDestroy(match);
2955 f->pattern = FcPatternDuplicate(pattern);
2957 f->ascent = f->match->ascent;
2958 f->descent = f->match->descent;
2960 f->rbearing = f->match->max_advance_width;
2962 f->height = f->ascent + f->descent;
2963 f->width = f->lbearing + f->rbearing;
2969 xloadfonts(char *fontstr, double fontsize) {
2971 FcResult r_sz, r_psz;
2975 if(fontstr[0] == '-') {
2976 pattern = XftXlfdParse(fontstr, False, False);
2978 pattern = FcNameParse((FcChar8 *)fontstr);
2982 die("st: can't open font %s\n", fontstr);
2985 FcPatternDel(pattern, FC_PIXEL_SIZE);
2986 FcPatternDel(pattern, FC_SIZE);
2987 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2988 usedfontsize = fontsize;
2990 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2991 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2992 if(r_psz == FcResultMatch) {
2993 usedfontsize = fontval;
2994 } else if(r_sz == FcResultMatch) {
2998 * Default font size is 12, if none given. This is to
2999 * have a known usedfontsize value.
3001 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
3004 defaultfontsize = usedfontsize;
3007 FcConfigSubstitute(0, pattern, FcMatchPattern);
3008 FcDefaultSubstitute(pattern);
3010 if(xloadfont(&dc.font, pattern))
3011 die("st: can't open font %s\n", fontstr);
3013 if(usedfontsize < 0) {
3014 FcPatternGetDouble(dc.font.match->pattern,
3015 FC_PIXEL_SIZE, 0, &fontval);
3016 usedfontsize = fontval;
3018 defaultfontsize = fontval;
3021 /* Setting character width and height. */
3022 xw.cw = ceilf(dc.font.width * cwscale);
3023 xw.ch = ceilf(dc.font.height * chscale);
3025 FcPatternDel(pattern, FC_SLANT);
3026 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
3027 if(xloadfont(&dc.ifont, pattern))
3028 die("st: can't open font %s\n", fontstr);
3030 FcPatternDel(pattern, FC_WEIGHT);
3031 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
3032 if(xloadfont(&dc.ibfont, pattern))
3033 die("st: can't open font %s\n", fontstr);
3035 FcPatternDel(pattern, FC_SLANT);
3036 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
3037 if(xloadfont(&dc.bfont, pattern))
3038 die("st: can't open font %s\n", fontstr);
3040 FcPatternDestroy(pattern);
3044 xloadfontset(Font *f) {
3047 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
3053 xunloadfont(Font *f) {
3054 XftFontClose(xw.dpy, f->match);
3055 FcPatternDestroy(f->pattern);
3057 FcFontSetDestroy(f->set);
3061 xunloadfonts(void) {
3062 /* Free the loaded fonts in the font cache. */
3064 XftFontClose(xw.dpy, frc[--frclen].font);
3066 xunloadfont(&dc.font);
3067 xunloadfont(&dc.bfont);
3068 xunloadfont(&dc.ifont);
3069 xunloadfont(&dc.ibfont);
3073 xzoom(const Arg *arg) {
3076 larg.i = usedfontsize + arg->i;
3081 xzoomabs(const Arg *arg) {
3083 xloadfonts(usedfont, arg->i);
3090 xzoomreset(const Arg *arg) {
3093 if(defaultfontsize > 0) {
3094 larg.i = defaultfontsize;
3104 pid_t thispid = getpid();
3106 if(!(xw.dpy = XOpenDisplay(NULL)))
3107 die("Can't open display\n");
3108 xw.scr = XDefaultScreen(xw.dpy);
3109 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3113 die("Could not init fontconfig.\n");
3115 usedfont = (opt_font == NULL)? font : opt_font;
3116 xloadfonts(usedfont, 0);
3119 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3122 /* adjust fixed window geometry */
3123 xw.w = 2 * borderpx + term.col * xw.cw;
3124 xw.h = 2 * borderpx + term.row * xw.ch;
3125 if(xw.gm & XNegative)
3126 xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
3127 if(xw.gm & YNegative)
3128 xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
3131 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3132 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3133 xw.attrs.bit_gravity = NorthWestGravity;
3134 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3135 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3136 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3137 xw.attrs.colormap = xw.cmap;
3139 if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
3140 parent = XRootWindow(xw.dpy, xw.scr);
3141 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
3142 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3143 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3144 | CWEventMask | CWColormap, &xw.attrs);
3146 memset(&gcvalues, 0, sizeof(gcvalues));
3147 gcvalues.graphics_exposures = False;
3148 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3150 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3151 DefaultDepth(xw.dpy, xw.scr));
3152 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3153 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3155 /* Xft rendering context */
3156 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3159 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3160 XSetLocaleModifiers("@im=local");
3161 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3162 XSetLocaleModifiers("@im=");
3163 if((xw.xim = XOpenIM(xw.dpy,
3164 NULL, NULL, NULL)) == NULL) {
3165 die("XOpenIM failed. Could not open input"
3170 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3171 | XIMStatusNothing, XNClientWindow, xw.win,
3172 XNFocusWindow, xw.win, NULL);
3174 die("XCreateIC failed. Could not obtain input method.\n");
3176 /* white cursor, black outline */
3177 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3178 XDefineCursor(xw.dpy, xw.win, cursor);
3179 XRecolorCursor(xw.dpy, cursor,
3180 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3181 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3183 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3184 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3185 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3186 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3188 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3189 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3190 PropModeReplace, (uchar *)&thispid, 1);
3193 XMapWindow(xw.dpy, xw.win);
3195 XSync(xw.dpy, False);
3199 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3200 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3201 width = charlen * xw.cw, xp, i;
3203 int u8fl, u8fblen, u8cblen, doesexist;
3206 Font *font = &dc.font;
3208 FcPattern *fcpattern, *fontpattern;
3209 FcFontSet *fcsets[] = { NULL };
3210 FcCharSet *fccharset;
3211 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3212 XRenderColor colfg, colbg;
3216 frcflags = FRC_NORMAL;
3218 if(base.mode & ATTR_ITALIC) {
3219 if(base.fg == defaultfg)
3220 base.fg = defaultitalic;
3222 frcflags = FRC_ITALIC;
3223 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3224 if(base.fg == defaultfg)
3225 base.fg = defaultitalic;
3227 frcflags = FRC_ITALICBOLD;
3228 } else if(base.mode & ATTR_UNDERLINE) {
3229 if(base.fg == defaultfg)
3230 base.fg = defaultunderline;
3233 if(IS_TRUECOL(base.fg)) {
3234 colfg.alpha = 0xffff;
3235 colfg.red = TRUERED(base.fg);
3236 colfg.green = TRUEGREEN(base.fg);
3237 colfg.blue = TRUEBLUE(base.fg);
3238 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3241 fg = &dc.col[base.fg];
3244 if(IS_TRUECOL(base.bg)) {
3245 colbg.alpha = 0xffff;
3246 colbg.green = TRUEGREEN(base.bg);
3247 colbg.red = TRUERED(base.bg);
3248 colbg.blue = TRUEBLUE(base.bg);
3249 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3252 bg = &dc.col[base.bg];
3255 if(base.mode & ATTR_BOLD) {
3257 * change basic system colors [0-7]
3258 * to bright system colors [8-15]
3260 if(BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT))
3261 fg = &dc.col[base.fg + 8];
3263 if(base.mode & ATTR_ITALIC) {
3265 frcflags = FRC_ITALICBOLD;
3268 frcflags = FRC_BOLD;
3272 if(IS_SET(MODE_REVERSE)) {
3273 if(fg == &dc.col[defaultfg]) {
3274 fg = &dc.col[defaultbg];
3276 colfg.red = ~fg->color.red;
3277 colfg.green = ~fg->color.green;
3278 colfg.blue = ~fg->color.blue;
3279 colfg.alpha = fg->color.alpha;
3280 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3285 if(bg == &dc.col[defaultbg]) {
3286 bg = &dc.col[defaultfg];
3288 colbg.red = ~bg->color.red;
3289 colbg.green = ~bg->color.green;
3290 colbg.blue = ~bg->color.blue;
3291 colbg.alpha = bg->color.alpha;
3292 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3298 if(base.mode & ATTR_REVERSE) {
3304 if(base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) {
3305 colfg.red = fg->color.red / 2;
3306 colfg.green = fg->color.green / 2;
3307 colfg.blue = fg->color.blue / 2;
3308 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
3312 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3315 if(base.mode & ATTR_INVISIBLE)
3318 /* Intelligent cleaning up of the borders. */
3320 xclear(0, (y == 0)? 0 : winy, borderpx,
3321 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3323 if(x + charlen >= term.col) {
3324 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3325 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3328 xclear(winx, 0, winx + width, borderpx);
3330 xclear(winx, winy + xw.ch, winx + width, xw.h);
3332 /* Clean up the region we want to draw to. */
3333 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3335 /* Set the clip region because Xft is sometimes dirty. */
3340 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3342 for(xp = winx; bytelen > 0;) {
3344 * Search for the range in the to be printed string of glyphs
3345 * that are in the main font. Then print that range. If
3346 * some glyph is found that is not in the font, do the
3352 oneatatime = font->width != xw.cw;
3355 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3359 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3363 if(!oneatatime && bytelen > 0)
3368 XftDrawStringUtf8(xw.draw, fg,
3370 winy + font->ascent,
3383 /* Search the font cache. */
3384 for(i = 0; i < frclen; i++) {
3385 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3386 && frc[i].flags == frcflags) {
3391 /* Nothing was found. */
3395 fcsets[0] = font->set;
3398 * Nothing was found in the cache. Now use
3399 * some dozen of Fontconfig calls to get the
3400 * font for one single character.
3402 * Xft and fontconfig are design failures.
3404 fcpattern = FcPatternDuplicate(font->pattern);
3405 fccharset = FcCharSetCreate();
3407 FcCharSetAddChar(fccharset, unicodep);
3408 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3410 FcPatternAddBool(fcpattern, FC_SCALABLE,
3413 FcConfigSubstitute(0, fcpattern,
3415 FcDefaultSubstitute(fcpattern);
3417 fontpattern = FcFontSetMatch(0, fcsets,
3418 FcTrue, fcpattern, &fcres);
3421 * Overwrite or create the new cache entry.
3423 if(frclen >= LEN(frc)) {
3424 frclen = LEN(frc) - 1;
3425 XftFontClose(xw.dpy, frc[frclen].font);
3428 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3430 frc[frclen].flags = frcflags;
3435 FcPatternDestroy(fcpattern);
3436 FcCharSetDestroy(fccharset);
3439 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3440 xp, winy + frc[i].font->ascent,
3441 (FcChar8 *)u8c, u8cblen);
3443 xp += xw.cw * wcwidth(unicodep);
3447 * This is how the loop above actually should be. Why does the
3448 * application have to care about font details?
3450 * I have to repeat: Xft and Fontconfig are design failures.
3453 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3454 winy + font->ascent, (FcChar8 *)s, bytelen);
3457 if(base.mode & ATTR_UNDERLINE) {
3458 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3462 if(base.mode & ATTR_STRUCK) {
3463 XftDrawRect(xw.draw, fg, winx, winy + 2 * font->ascent / 3,
3467 /* Reset clip to none. */
3468 XftDrawSetClip(xw.draw, 0);
3473 static int oldx = 0, oldy = 0;
3474 int sl, width, curx;
3475 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3477 LIMIT(oldx, 0, term.col-1);
3478 LIMIT(oldy, 0, term.row-1);
3482 /* adjust position if in dummy */
3483 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3485 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3488 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3490 /* remove the old cursor */
3491 sl = utf8len(term.line[oldy][oldx].c);
3492 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3493 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3496 if(IS_SET(MODE_HIDE))
3499 /* draw the new one */
3500 if(xw.state & WIN_FOCUSED) {
3501 if(IS_SET(MODE_REVERSE)) {
3502 g.mode |= ATTR_REVERSE;
3508 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3510 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3512 XftDrawRect(xw.draw, &dc.col[defaultcs],
3513 borderpx + curx * xw.cw,
3514 borderpx + term.c.y * xw.ch,
3516 XftDrawRect(xw.draw, &dc.col[defaultcs],
3517 borderpx + curx * xw.cw,
3518 borderpx + term.c.y * xw.ch,
3520 XftDrawRect(xw.draw, &dc.col[defaultcs],
3521 borderpx + (curx + 1) * xw.cw - 1,
3522 borderpx + term.c.y * xw.ch,
3524 XftDrawRect(xw.draw, &dc.col[defaultcs],
3525 borderpx + curx * xw.cw,
3526 borderpx + (term.c.y + 1) * xw.ch - 1,
3529 oldx = curx, oldy = term.c.y;
3534 xsettitle(char *p) {
3537 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3539 XSetWMName(xw.dpy, xw.win, &prop);
3540 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3546 xsettitle(opt_title ? opt_title : "st");
3550 redraw(int timeout) {
3551 struct timespec tv = {0, timeout * 1000};
3557 nanosleep(&tv, NULL);
3558 XSync(xw.dpy, False); /* necessary for a good tput flash */
3564 drawregion(0, 0, term.col, term.row);
3565 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3567 XSetForeground(xw.dpy, dc.gc,
3568 dc.col[IS_SET(MODE_REVERSE)?
3569 defaultfg : defaultbg].pixel);
3573 drawregion(int x1, int y1, int x2, int y2) {
3574 int ic, ib, x, y, ox, sl;
3576 char buf[DRAW_BUF_SIZ];
3577 bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
3580 if(!(xw.state & WIN_VISIBLE))
3583 for(y = y1; y < y2; y++) {
3587 xtermclear(0, y, term.col, y);
3589 base = term.line[y][0];
3591 for(x = x1; x < x2; x++) {
3592 new = term.line[y][x];
3593 if(new.mode == ATTR_WDUMMY)
3595 if(ena_sel && selected(x, y))
3596 new.mode ^= ATTR_REVERSE;
3597 if(ib > 0 && (ATTRCMP(base, new)
3598 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3599 xdraws(buf, base, ox, y, ic, ib);
3607 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3608 memcpy(buf+ib, new.c, sl);
3610 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3613 xdraws(buf, base, ox, y, ic, ib);
3619 expose(XEvent *ev) {
3620 XExposeEvent *e = &ev->xexpose;
3622 if(xw.state & WIN_REDRAW) {
3624 xw.state &= ~WIN_REDRAW;
3630 visibility(XEvent *ev) {
3631 XVisibilityEvent *e = &ev->xvisibility;
3633 if(e->state == VisibilityFullyObscured) {
3634 xw.state &= ~WIN_VISIBLE;
3635 } else if(!(xw.state & WIN_VISIBLE)) {
3636 /* need a full redraw for next Expose, not just a buf copy */
3637 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3643 xw.state &= ~WIN_VISIBLE;
3647 xsetpointermotion(int set) {
3648 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3649 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3653 xseturgency(int add) {
3654 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3656 MODBIT(h->flags, add, XUrgencyHint);
3657 XSetWMHints(xw.dpy, xw.win, h);
3663 XFocusChangeEvent *e = &ev->xfocus;
3665 if(e->mode == NotifyGrab)
3668 if(ev->type == FocusIn) {
3669 XSetICFocus(xw.xic);
3670 xw.state |= WIN_FOCUSED;
3672 if(IS_SET(MODE_FOCUS))
3673 ttywrite("\033[I", 3);
3675 XUnsetICFocus(xw.xic);
3676 xw.state &= ~WIN_FOCUSED;
3677 if(IS_SET(MODE_FOCUS))
3678 ttywrite("\033[O", 3);
3683 match(uint mask, uint state) {
3684 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3688 numlock(const Arg *dummy) {
3693 kmap(KeySym k, uint state) {
3697 /* Check for mapped keys out of X11 function keys. */
3698 for(i = 0; i < LEN(mappedkeys); i++) {
3699 if(mappedkeys[i] == k)
3702 if(i == LEN(mappedkeys)) {
3703 if((k & 0xFFFF) < 0xFD00)
3707 for(kp = key; kp < key + LEN(key); kp++) {
3711 if(!match(kp->mask, state))
3714 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3716 if(term.numlock && kp->appkey == 2)
3719 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3722 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3732 kpress(XEvent *ev) {
3733 XKeyEvent *e = &ev->xkey;
3735 char buf[32], *customkey;
3741 if(IS_SET(MODE_KBDLOCK))
3744 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3746 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3747 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3748 bp->func(&(bp->arg));
3753 /* 2. custom keys from config.h */
3754 if((customkey = kmap(ksym, e->state))) {
3755 ttysend(customkey, strlen(customkey));
3759 /* 3. composed string from input method */
3762 if(len == 1 && e->state & Mod1Mask) {
3763 if(IS_SET(MODE_8BIT)) {
3766 len = utf8encode(c, buf, UTF_SIZ);
3779 cmessage(XEvent *e) {
3782 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3784 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3785 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3786 xw.state |= WIN_FOCUSED;
3788 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3789 xw.state &= ~WIN_FOCUSED;
3791 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3792 /* Send SIGHUP to shell */
3799 cresize(int width, int height) {
3807 col = (xw.w - 2 * borderpx) / xw.cw;
3808 row = (xw.h - 2 * borderpx) / xw.ch;
3817 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3820 cresize(e->xconfigure.width, e->xconfigure.height);
3826 int w = xw.w, h = xw.h;
3828 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3829 struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
3832 /* Waiting for window mapping */
3834 XNextEvent(xw.dpy, &ev);
3835 if(XFilterEvent(&ev, None))
3837 if(ev.type == ConfigureNotify) {
3838 w = ev.xconfigure.width;
3839 h = ev.xconfigure.height;
3840 } else if(ev.type == MapNotify) {
3848 clock_gettime(CLOCK_MONOTONIC, &last);
3851 for(xev = actionfps;;) {
3853 FD_SET(cmdfd, &rfd);
3856 if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
3859 die("select failed: %s\n", strerror(errno));
3861 if(FD_ISSET(cmdfd, &rfd)) {
3864 blinkset = tattrset(ATTR_BLINK);
3866 MODBIT(term.mode, 0, MODE_BLINK);
3870 if(FD_ISSET(xfd, &rfd))
3873 clock_gettime(CLOCK_MONOTONIC, &now);
3874 drawtimeout.tv_sec = 0;
3875 drawtimeout.tv_nsec = (1000/xfps) * 1E6;
3879 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3880 tsetdirtattr(ATTR_BLINK);
3881 term.mode ^= MODE_BLINK;
3885 deltatime = TIMEDIFF(now, last);
3886 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3893 while(XPending(xw.dpy)) {
3894 XNextEvent(xw.dpy, &ev);
3895 if(XFilterEvent(&ev, None))
3897 if(handler[ev.type])
3898 (handler[ev.type])(&ev);
3904 if(xev && !FD_ISSET(xfd, &rfd))
3906 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3908 if(TIMEDIFF(now, lastblink) \
3910 drawtimeout.tv_nsec = 1000;
3912 drawtimeout.tv_nsec = (1E6 * \
3927 die("%s " VERSION " (c) 2010-2014 st engineers\n" \
3928 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
3929 " [-i] [-t title] [-w windowid] [-e command ...]\n", argv0);
3933 main(int argc, char *argv[]) {
3935 uint cols = 80, rows = 24;
3942 allowaltscreen = false;
3945 opt_class = EARGF(usage());
3948 /* eat all remaining arguments */
3951 if(argv[1] != NULL && opt_title == NULL) {
3952 titles = xstrdup(argv[1]);
3953 opt_title = basename(titles);
3958 opt_font = EARGF(usage());
3961 xw.gm = XParseGeometry(EARGF(usage()),
3962 &xw.l, &xw.t, &cols, &rows);
3968 opt_io = EARGF(usage());
3971 opt_title = EARGF(usage());
3974 opt_embed = EARGF(usage());
3982 setlocale(LC_CTYPE, "");
3983 XSetLocaleModifiers("");
3984 tnew(cols? cols : 1, rows? rows : 1);