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 LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
74 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
75 #define IS_SET(flag) ((term.mode & (flag)) != 0)
76 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
77 #define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
78 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
80 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
81 #define IS_TRUECOL(x) (1 << 24 & (x))
82 #define TRUERED(x) (((x) & 0xff0000) >> 8)
83 #define TRUEGREEN(x) (((x) & 0xff00))
84 #define TRUEBLUE(x) (((x) & 0xff) << 8)
87 #define VT102ID "\033[?6c"
89 enum glyph_attribute {
102 enum cursor_movement {
120 MODE_MOUSEMOTION = 64,
125 MODE_APPCURSOR = 2048,
126 MODE_MOUSESGR = 4096,
131 MODE_MOUSEX10 = 131072,
132 MODE_MOUSEMANY = 262144,
133 MODE_BRCKTPASTE = 524288,
134 MODE_PRINT = 1048576,
135 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
152 ESC_STR = 4, /* DSC, OSC, PM, APC */
154 ESC_STR_END = 16, /* a final string was encountered */
155 ESC_TEST = 32, /* Enter in test mode */
164 enum selection_type {
169 enum selection_snap {
174 typedef unsigned char uchar;
175 typedef unsigned int uint;
176 typedef unsigned long ulong;
177 typedef unsigned short ushort;
179 typedef XftDraw *Draw;
180 typedef XftColor Colour;
181 typedef Colormap Colourmap;
184 char c[UTF_SIZ]; /* character code */
185 ushort mode; /* attribute flags */
186 uint32_t fg; /* foreground */
187 uint32_t bg; /* background */
193 Glyph attr; /* current char attributes */
199 /* CSI Escape sequence structs */
200 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
202 char buf[ESC_BUF_SIZ]; /* raw string */
203 int len; /* raw string length */
205 int arg[ESC_ARG_SIZ];
206 int narg; /* nb of args */
210 /* STR Escape sequence structs */
211 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
213 char type; /* ESC type ... */
214 char buf[STR_BUF_SIZ]; /* raw string */
215 int len; /* raw string length */
216 char *args[STR_ARG_SIZ];
217 int narg; /* nb of args */
220 /* Internal representation of the screen */
222 int row; /* nb row */
223 int col; /* nb col */
224 Line *line; /* screen */
225 Line *alt; /* alternate screen */
226 bool *dirty; /* dirtyness of lines */
227 TCursor c; /* cursor */
228 int top; /* top scroll limit */
229 int bot; /* bottom scroll limit */
230 int mode; /* terminal mode flags */
231 int esc; /* escape state flags */
232 char trantbl[4]; /* charset table translation */
233 int charset; /* current charset */
234 int icharset; /* selected charset for sequence */
235 bool numlock; /* lock numbers in keyboard */
239 /* Purely graphic info */
245 Atom xembed, wmdeletewin, netwmname, netwmpid;
250 XSetWindowAttributes attrs;
252 bool isfixed; /* is fixed geometry? */
253 int l, t; /* left and top offset */
254 int gm; /* geometry mask */
255 int tw, th; /* tty width and height */
256 int w, h; /* window width and height */
257 int ch; /* char height */
258 int cw; /* char width */
259 char state; /* focus, redraw, visible */
272 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
273 signed char appkey; /* application keypad */
274 signed char appcursor; /* application cursor */
275 signed char crlf; /* crlf mode */
283 * Selection variables:
284 * nb – normalized coordinates of the beginning of the selection
285 * ne – normalized coordinates of the end of the selection
286 * ob – original coordinates of the beginning of the selection
287 * oe – original coordinates of the end of the selection
296 struct timeval tclick1;
297 struct timeval tclick2;
310 void (*func)(const Arg *);
314 /* function definitions used in config.h */
315 static void clippaste(const Arg *);
316 static void numlock(const Arg *);
317 static void selpaste(const Arg *);
318 static void xzoom(const Arg *);
319 static void printsel(const Arg *);
320 static void printscreen(const Arg *) ;
321 static void toggleprinter(const Arg *);
323 /* Config.h for applying patches and the configuration. */
339 /* Drawing Context */
341 Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
342 Font font, bfont, ifont, ibfont;
346 static void die(const char *, ...);
347 static void draw(void);
348 static void redraw(int);
349 static void drawregion(int, int, int, int);
350 static void execsh(void);
351 static void sigchld(int);
352 static void run(void);
354 static void csidump(void);
355 static void csihandle(void);
356 static void csiparse(void);
357 static void csireset(void);
358 static void strdump(void);
359 static void strhandle(void);
360 static void strparse(void);
361 static void strreset(void);
363 static int tattrset(int);
364 static void tprinter(char *, size_t);
365 static void tdumpsel(void);
366 static void tdumpline(int);
367 static void tdump(void);
368 static void tclearregion(int, int, int, int);
369 static void tcursor(int);
370 static void tdeletechar(int);
371 static void tdeleteline(int);
372 static void tinsertblank(int);
373 static void tinsertblankline(int);
374 static void tmoveto(int, int);
375 static void tmoveato(int, int);
376 static void tnew(int, int);
377 static void tnewline(int);
378 static void tputtab(int);
379 static void tputc(char *, int);
380 static void treset(void);
381 static int tresize(int, int);
382 static void tscrollup(int, int);
383 static void tscrolldown(int, int);
384 static void tsetattr(int *, int);
385 static void tsetchar(char *, Glyph *, int, int);
386 static void tsetscroll(int, int);
387 static void tswapscreen(void);
388 static void tsetdirt(int, int);
389 static void tsetdirtattr(int);
390 static void tsetmode(bool, bool, int *, int);
391 static void tfulldirt(void);
392 static void techo(char *, int);
393 static int32_t tdefcolor(int *, int *, int);
394 static void tselcs(void);
395 static void tdeftran(char);
396 static inline bool match(uint, uint);
397 static void ttynew(void);
398 static void ttyread(void);
399 static void ttyresize(void);
400 static void ttysend(char *, size_t);
401 static void ttywrite(const char *, size_t);
403 static void xdraws(char *, Glyph, int, int, int, int);
404 static void xhints(void);
405 static void xclear(int, int, int, int);
406 static void xdrawcursor(void);
407 static void xinit(void);
408 static void xloadcols(void);
409 static int xsetcolorname(int, const char *);
410 static int xgeommasktogravity(int);
411 static int xloadfont(Font *, FcPattern *);
412 static void xloadfonts(char *, double);
413 static int xloadfontset(Font *);
414 static void xsettitle(char *);
415 static void xresettitle(void);
416 static void xsetpointermotion(int);
417 static void xseturgency(int);
418 static void xsetsel(char *);
419 static void xtermclear(int, int, int, int);
420 static void xunloadfont(Font *);
421 static void xunloadfonts(void);
422 static void xresize(int, int);
424 static void expose(XEvent *);
425 static void visibility(XEvent *);
426 static void unmap(XEvent *);
427 static char *kmap(KeySym, uint);
428 static void kpress(XEvent *);
429 static void cmessage(XEvent *);
430 static void cresize(int, int);
431 static void resize(XEvent *);
432 static void focus(XEvent *);
433 static void brelease(XEvent *);
434 static void bpress(XEvent *);
435 static void bmotion(XEvent *);
436 static void selnotify(XEvent *);
437 static void selclear(XEvent *);
438 static void selrequest(XEvent *);
440 static void selinit(void);
441 static void selsort(void);
442 static inline bool selected(int, int);
443 static char *getsel(void);
444 static void selcopy(void);
445 static void selscroll(int, int);
446 static void selsnap(int, int *, int *, int);
448 static size_t utf8decode(char *, long *, size_t);
449 static long utf8decodebyte(char, size_t *);
450 static size_t utf8encode(long, char *, size_t);
451 static char utf8encodebyte(long, size_t);
452 static size_t utf8len(char *);
453 static size_t utf8validate(long *, size_t);
455 static ssize_t xwrite(int, char *, size_t);
456 static void *xmalloc(size_t);
457 static void *xrealloc(void *, size_t);
458 static char *xstrdup(char *);
460 static void (*handler[LASTEvent])(XEvent *) = {
462 [ClientMessage] = cmessage,
463 [ConfigureNotify] = resize,
464 [VisibilityNotify] = visibility,
465 [UnmapNotify] = unmap,
469 [MotionNotify] = bmotion,
470 [ButtonPress] = bpress,
471 [ButtonRelease] = brelease,
472 [SelectionClear] = selclear,
473 [SelectionNotify] = selnotify,
474 [SelectionRequest] = selrequest,
481 static CSIEscape csiescseq;
482 static STREscape strescseq;
485 static Selection sel;
486 static int iofd = STDOUT_FILENO;
487 static char **opt_cmd = NULL;
488 static char *opt_io = NULL;
489 static char *opt_title = NULL;
490 static char *opt_embed = NULL;
491 static char *opt_class = NULL;
492 static char *opt_font = NULL;
493 static int oldbutton = 3; /* button event on startup: 3 = release */
495 static char *usedfont = NULL;
496 static double usedfontsize = 0;
498 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
499 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
500 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
501 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
503 /* Font Ring Cache */
516 /* Fontcache is an array now. A new font will be appended to the array. */
517 static Fontcache frc[16];
518 static int frclen = 0;
521 xwrite(int fd, char *s, size_t len) {
525 ssize_t r = write(fd, s, len);
535 xmalloc(size_t len) {
536 void *p = malloc(len);
539 die("Out of memory\n");
545 xrealloc(void *p, size_t len) {
546 if((p = realloc(p, len)) == NULL)
547 die("Out of memory\n");
554 if((s = strdup(s)) == NULL)
555 die("Out of memory\n");
561 utf8decode(char *c, long *u, size_t clen) {
562 size_t i, j, len, type;
568 udecoded = utf8decodebyte(c[0], &len);
569 if(!BETWEEN(len, 1, UTF_SIZ))
571 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
572 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
579 utf8validate(u, len);
584 utf8decodebyte(char c, size_t *i) {
585 for(*i = 0; *i < LEN(utfmask); ++(*i))
586 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
587 return (uchar)c & ~utfmask[*i];
592 utf8encode(long u, char *c, size_t clen) {
595 len = utf8validate(&u, 0);
598 for(i = len - 1; i != 0; --i) {
599 c[i] = utf8encodebyte(u, 0);
602 c[0] = utf8encodebyte(u, len);
607 utf8encodebyte(long u, size_t i) {
608 return utfbyte[i] | (u & ~utfmask[i]);
613 return utf8decode(c, &(long){0}, UTF_SIZ);
617 utf8validate(long *u, size_t i) {
618 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
620 for(i = 1; *u > utfmax[i]; ++i)
627 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
628 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
632 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
633 if(sel.xtarget == None)
634 sel.xtarget = XA_STRING;
642 return LIMIT(x, 0, term.col-1);
650 return LIMIT(y, 0, term.row-1);
655 if(sel.ob.y == sel.oe.y) {
656 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
657 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
659 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
660 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
662 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
663 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
667 selected(int x, int y) {
668 if(sel.ne.y == y && sel.nb.y == y)
669 return BETWEEN(x, sel.nb.x, sel.ne.x);
671 if(sel.type == SEL_RECTANGULAR) {
672 return ((sel.nb.y <= y && y <= sel.ne.y)
673 && (sel.nb.x <= x && x <= sel.ne.x));
676 return ((sel.nb.y < y && y < sel.ne.y)
677 || (y == sel.ne.y && x <= sel.ne.x))
678 || (y == sel.nb.y && x >= sel.nb.x
679 && (x <= sel.ne.x || sel.nb.y != sel.ne.y));
683 selsnap(int mode, int *x, int *y, int direction) {
689 * Snap around if the word wraps around at the end or
690 * beginning of a line.
693 if(direction < 0 && *x <= 0) {
694 if(*y > 0 && term.line[*y - 1][term.col-1].mode
702 if(direction > 0 && *x >= term.col-1) {
703 if(*y < term.row-1 && term.line[*y][*x].mode
712 if(term.line[*y][*x+direction].mode & ATTR_WDUMMY) {
717 if(strchr(worddelimiters,
718 term.line[*y][*x+direction].c[0])) {
727 * Snap around if the the previous line or the current one
728 * has set ATTR_WRAP at its end. Then the whole next or
729 * previous line will be selected.
731 *x = (direction < 0) ? 0 : term.col - 1;
732 if(direction < 0 && *y > 0) {
733 for(; *y > 0; *y += direction) {
734 if(!(term.line[*y-1][term.col-1].mode
739 } else if(direction > 0 && *y < term.row-1) {
740 for(; *y < term.row; *y += direction) {
741 if(!(term.line[*y][term.col-1].mode
750 * Select the whole line when the end of line is reached.
754 while(--i > 0 && term.line[*y][i].c[0] == ' ')
764 getbuttoninfo(XEvent *e) {
766 uint state = e->xbutton.state &~Button1Mask;
768 sel.alt = IS_SET(MODE_ALTSCREEN);
770 sel.oe.x = x2col(e->xbutton.x);
771 sel.oe.y = y2row(e->xbutton.y);
773 if(sel.ob.y < sel.oe.y
774 || (sel.ob.y == sel.oe.y && sel.ob.x < sel.oe.x)) {
775 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
776 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
778 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
779 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
783 sel.type = SEL_REGULAR;
784 for(type = 1; type < LEN(selmasks); ++type) {
785 if(match(selmasks[type], state)) {
793 mousereport(XEvent *e) {
794 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
795 button = e->xbutton.button, state = e->xbutton.state,
801 if(e->xbutton.type == MotionNotify) {
802 if(x == ox && y == oy)
804 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
806 /* MOUSE_MOTION: no reporting if no button is pressed */
807 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
810 button = oldbutton + 32;
814 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
821 if(e->xbutton.type == ButtonPress) {
825 } else if(e->xbutton.type == ButtonRelease) {
827 /* MODE_MOUSEX10: no button release reporting */
828 if(IS_SET(MODE_MOUSEX10))
833 if(!IS_SET(MODE_MOUSEX10)) {
834 button += (state & ShiftMask ? 4 : 0)
835 + (state & Mod4Mask ? 8 : 0)
836 + (state & ControlMask ? 16 : 0);
840 if(IS_SET(MODE_MOUSESGR)) {
841 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
843 e->xbutton.type == ButtonRelease ? 'm' : 'M');
844 } else if(x < 223 && y < 223) {
845 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
846 32+button, 32+x+1, 32+y+1);
859 if(IS_SET(MODE_MOUSE)) {
864 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
865 if(e->xbutton.button == mk->b
866 && match(mk->mask, e->xbutton.state)) {
867 ttysend(mk->s, strlen(mk->s));
872 if(e->xbutton.button == Button1) {
873 gettimeofday(&now, NULL);
875 /* Clear previous selection, logically and visually. */
878 sel.type = SEL_REGULAR;
879 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
880 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
883 * If the user clicks below predefined timeouts specific
884 * snapping behaviour is exposed.
886 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
887 sel.snap = SNAP_LINE;
888 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
889 sel.snap = SNAP_WORD;
893 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
894 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
898 * Draw selection, unless it's regular and we don't want to
899 * make clicks visible
903 tsetdirt(sel.nb.y, sel.ne.y);
905 sel.tclick2 = sel.tclick1;
913 int x, y, bufsize, size, i, ex;
919 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
920 ptr = str = xmalloc(bufsize);
922 /* append every set & selected glyph to the selection */
923 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
924 gp = &term.line[y][0];
925 last = &gp[term.col-1];
927 while(last >= gp && !(selected(last - gp, y) &&
928 strcmp(last->c, " ") != 0)) {
932 for(x = 0; gp <= last; x++, ++gp) {
933 if(!selected(x, y) || (gp->mode & ATTR_WDUMMY))
936 size = utf8len(gp->c);
937 memcpy(ptr, gp->c, size);
942 * Copy and pasting of line endings is inconsistent
943 * in the inconsistent terminal and GUI world.
944 * The best solution seems like to produce '\n' when
945 * something is copied from st and convert '\n' to
946 * '\r', when something to be pasted is received by
948 * FIXME: Fix the computer world.
950 if(y < sel.ne.y && x > 0 && !((gp-1)->mode & ATTR_WRAP))
954 * If the last selected line expands in the selection
955 * after the visible text '\n' is appended.
959 while(--i > 0 && term.line[y][i].c[0] == ' ')
962 if(sel.nb.y == sel.ne.y && sel.ne.x < sel.nb.x)
979 selnotify(XEvent *e) {
980 ulong nitems, ofs, rem;
982 uchar *data, *last, *repl;
987 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
988 False, AnyPropertyType, &type, &format,
989 &nitems, &rem, &data)) {
990 fprintf(stderr, "Clipboard allocation failed\n");
996 * Line endings are inconsistent in the terminal and GUI world
997 * copy and pasting. When receiving some selection data,
998 * replace all '\n' with '\r'.
999 * FIXME: Fix the computer world.
1002 last = data + nitems * format / 8;
1003 while((repl = memchr(repl, '\n', last - repl))) {
1007 if(IS_SET(MODE_BRCKTPASTE))
1008 ttywrite("\033[200~", 6);
1009 ttysend((char *)data, nitems * format / 8);
1010 if(IS_SET(MODE_BRCKTPASTE))
1011 ttywrite("\033[201~", 6);
1013 /* number of 32-bit chunks returned */
1014 ofs += nitems * format / 32;
1019 selpaste(const Arg *dummy) {
1020 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1021 xw.win, CurrentTime);
1025 clippaste(const Arg *dummy) {
1028 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1029 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
1030 xw.win, CurrentTime);
1034 selclear(XEvent *e) {
1038 tsetdirt(sel.nb.y, sel.ne.y);
1042 selrequest(XEvent *e) {
1043 XSelectionRequestEvent *xsre;
1044 XSelectionEvent xev;
1045 Atom xa_targets, string;
1047 xsre = (XSelectionRequestEvent *) e;
1048 xev.type = SelectionNotify;
1049 xev.requestor = xsre->requestor;
1050 xev.selection = xsre->selection;
1051 xev.target = xsre->target;
1052 xev.time = xsre->time;
1054 xev.property = None;
1056 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1057 if(xsre->target == xa_targets) {
1058 /* respond with the supported type */
1059 string = sel.xtarget;
1060 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1061 XA_ATOM, 32, PropModeReplace,
1062 (uchar *) &string, 1);
1063 xev.property = xsre->property;
1064 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
1065 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1066 xsre->target, 8, PropModeReplace,
1067 (uchar *) sel.clip, strlen(sel.clip));
1068 xev.property = xsre->property;
1071 /* all done, send a notification to the listener */
1072 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1073 fprintf(stderr, "Error sending SelectionNotify event\n");
1077 xsetsel(char *str) {
1078 /* register the selection for both the clipboard and the primary */
1084 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1086 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1087 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1091 brelease(XEvent *e) {
1092 if(IS_SET(MODE_MOUSE)) {
1097 if(e->xbutton.button == Button2) {
1099 } else if(e->xbutton.button == Button1) {
1107 tsetdirt(sel.nb.y, sel.ne.y);
1112 bmotion(XEvent *e) {
1113 int oldey, oldex, oldsby, oldsey;
1115 if(IS_SET(MODE_MOUSE)) {
1130 if(oldey != sel.oe.y || oldex != sel.oe.x)
1131 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1135 die(const char *errstr, ...) {
1138 va_start(ap, errstr);
1139 vfprintf(stderr, errstr, ap);
1147 char *envshell = getenv("SHELL");
1148 const struct passwd *pass = getpwuid(getuid());
1149 char buf[sizeof(long) * 8 + 1];
1151 unsetenv("COLUMNS");
1153 unsetenv("TERMCAP");
1156 setenv("LOGNAME", pass->pw_name, 1);
1157 setenv("USER", pass->pw_name, 1);
1158 setenv("SHELL", pass->pw_shell, 0);
1159 setenv("HOME", pass->pw_dir, 0);
1162 snprintf(buf, sizeof(buf), "%lu", xw.win);
1163 setenv("WINDOWID", buf, 1);
1165 signal(SIGCHLD, SIG_DFL);
1166 signal(SIGHUP, SIG_DFL);
1167 signal(SIGINT, SIG_DFL);
1168 signal(SIGQUIT, SIG_DFL);
1169 signal(SIGTERM, SIG_DFL);
1170 signal(SIGALRM, SIG_DFL);
1172 DEFAULT(envshell, shell);
1173 setenv("TERM", termname, 1);
1174 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
1175 execvp(args[0], args);
1183 if(waitpid(pid, &stat, 0) < 0)
1184 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1186 if(WIFEXITED(stat)) {
1187 exit(WEXITSTATUS(stat));
1196 struct winsize w = {term.row, term.col, 0, 0};
1198 /* seems to work fine on linux, openbsd and freebsd */
1199 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1200 die("openpty failed: %s\n", strerror(errno));
1202 switch(pid = fork()) {
1204 die("fork failed\n");
1207 setsid(); /* create a new process group */
1208 dup2(s, STDIN_FILENO);
1209 dup2(s, STDOUT_FILENO);
1210 dup2(s, STDERR_FILENO);
1211 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1212 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1220 signal(SIGCHLD, sigchld);
1222 term.mode |= MODE_PRINT;
1223 iofd = (!strcmp(opt_io, "-")) ?
1225 open(opt_io, O_WRONLY | O_CREAT, 0666);
1227 fprintf(stderr, "Error opening %s:%s\n",
1228 opt_io, strerror(errno));
1238 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
1240 fprintf(stderr, "\n");
1245 static char buf[BUFSIZ];
1246 static int buflen = 0;
1249 int charsize; /* size of utf8 char in bytes */
1253 /* append read bytes to unprocessed bytes */
1254 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1255 die("Couldn't read from shell: %s\n", strerror(errno));
1257 /* process every complete utf8 char */
1260 while((charsize = utf8decode(ptr, &unicodep, buflen))) {
1261 utf8encode(unicodep, s, UTF_SIZ);
1267 /* keep any uncomplete utf8 char for the next call */
1268 memmove(buf, ptr, buflen);
1272 ttywrite(const char *s, size_t n) {
1273 if(write(cmdfd, s, n) == -1)
1274 die("write error on tty: %s\n", strerror(errno));
1278 ttysend(char *s, size_t n) {
1280 if(IS_SET(MODE_ECHO))
1288 w.ws_row = term.row;
1289 w.ws_col = term.col;
1290 w.ws_xpixel = xw.tw;
1291 w.ws_ypixel = xw.th;
1292 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1293 fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
1297 tattrset(int attr) {
1300 for(i = 0; i < term.row-1; i++) {
1301 for(j = 0; j < term.col-1; j++) {
1302 if(term.line[i][j].mode & attr)
1311 tsetdirt(int top, int bot) {
1314 LIMIT(top, 0, term.row-1);
1315 LIMIT(bot, 0, term.row-1);
1317 for(i = top; i <= bot; i++)
1322 tsetdirtattr(int attr) {
1325 for(i = 0; i < term.row-1; i++) {
1326 for(j = 0; j < term.col-1; j++) {
1327 if(term.line[i][j].mode & attr) {
1337 tsetdirt(0, term.row-1);
1342 static TCursor c[2];
1343 bool alt = IS_SET(MODE_ALTSCREEN);
1345 if(mode == CURSOR_SAVE) {
1347 } else if(mode == CURSOR_LOAD) {
1349 tmoveto(c[alt].x, c[alt].y);
1357 term.c = (TCursor){{
1361 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1363 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1364 for(i = tabspaces; i < term.col; i += tabspaces)
1367 term.bot = term.row - 1;
1368 term.mode = MODE_WRAP;
1369 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1372 tclearregion(0, 0, term.col-1, term.row-1);
1374 tcursor(CURSOR_SAVE);
1378 tnew(int col, int row) {
1379 term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
1388 Line *tmp = term.line;
1390 term.line = term.alt;
1392 term.mode ^= MODE_ALTSCREEN;
1397 tscrolldown(int orig, int n) {
1401 LIMIT(n, 0, term.bot-orig+1);
1403 tsetdirt(orig, term.bot-n);
1404 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1406 for(i = term.bot; i >= orig+n; i--) {
1407 temp = term.line[i];
1408 term.line[i] = term.line[i-n];
1409 term.line[i-n] = temp;
1416 tscrollup(int orig, int n) {
1420 LIMIT(n, 0, term.bot-orig+1);
1422 tclearregion(0, orig, term.col-1, orig+n-1);
1423 tsetdirt(orig+n, term.bot);
1425 for(i = orig; i <= term.bot-n; i++) {
1426 temp = term.line[i];
1427 term.line[i] = term.line[i+n];
1428 term.line[i+n] = temp;
1431 selscroll(orig, -n);
1435 selscroll(int orig, int n) {
1439 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1440 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1444 if(sel.type == SEL_RECTANGULAR) {
1445 if(sel.ob.y < term.top)
1446 sel.ob.y = term.top;
1447 if(sel.oe.y > term.bot)
1448 sel.oe.y = term.bot;
1450 if(sel.ob.y < term.top) {
1451 sel.ob.y = term.top;
1454 if(sel.oe.y > term.bot) {
1455 sel.oe.y = term.bot;
1456 sel.oe.x = term.col;
1464 tnewline(int first_col) {
1468 tscrollup(term.top, 1);
1472 tmoveto(first_col ? 0 : term.c.x, y);
1477 char *p = csiescseq.buf, *np;
1486 csiescseq.buf[csiescseq.len] = '\0';
1487 while(p < csiescseq.buf+csiescseq.len) {
1489 v = strtol(p, &np, 10);
1492 if(v == LONG_MAX || v == LONG_MIN)
1494 csiescseq.arg[csiescseq.narg++] = v;
1496 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1500 csiescseq.mode = *p;
1503 /* for absolute user moves, when decom is set */
1505 tmoveato(int x, int y) {
1506 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1510 tmoveto(int x, int y) {
1513 if(term.c.state & CURSOR_ORIGIN) {
1518 maxy = term.row - 1;
1520 LIMIT(x, 0, term.col-1);
1521 LIMIT(y, miny, maxy);
1522 term.c.state &= ~CURSOR_WRAPNEXT;
1528 tsetchar(char *c, Glyph *attr, int x, int y) {
1529 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1530 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1531 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1532 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1533 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1534 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1535 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1536 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1537 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1541 * The table is proudly stolen from rxvt.
1543 if(attr->mode & ATTR_GFX) {
1544 if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
1545 c = vt100_0[c[0] - 0x41];
1549 if(term.line[y][x].mode & ATTR_WIDE) {
1550 if(x+1 < term.col) {
1551 term.line[y][x+1].c[0] = ' ';
1552 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1554 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1555 term.line[y][x-1].c[0] = ' ';
1556 term.line[y][x-1].mode &= ~ATTR_WIDE;
1560 term.line[y][x] = *attr;
1561 memcpy(term.line[y][x].c, c, UTF_SIZ);
1565 tclearregion(int x1, int y1, int x2, int y2) {
1569 temp = x1, x1 = x2, x2 = temp;
1571 temp = y1, y1 = y2, y2 = temp;
1573 LIMIT(x1, 0, term.col-1);
1574 LIMIT(x2, 0, term.col-1);
1575 LIMIT(y1, 0, term.row-1);
1576 LIMIT(y2, 0, term.row-1);
1578 for(y = y1; y <= y2; y++) {
1580 for(x = x1; x <= x2; x++) {
1583 term.line[y][x] = term.c.attr;
1584 memcpy(term.line[y][x].c, " ", 2);
1590 tdeletechar(int n) {
1594 LIMIT(n, 0, term.col - term.c.x);
1598 size = term.col - src;
1599 line = term.line[term.c.y];
1601 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1602 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1606 tinsertblank(int n) {
1610 LIMIT(n, 0, term.col - term.c.x);
1614 size = term.col - dst;
1615 line = term.line[term.c.y];
1617 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1618 tclearregion(src, term.c.y, dst - 1, term.c.y);
1622 tinsertblankline(int n) {
1623 if(BETWEEN(term.c.y, term.top, term.bot))
1624 tscrolldown(term.c.y, n);
1628 tdeleteline(int n) {
1629 if(BETWEEN(term.c.y, term.top, term.bot))
1630 tscrollup(term.c.y, n);
1634 tdefcolor(int *attr, int *npar, int l) {
1638 switch (attr[*npar + 1]) {
1639 case 2: /* direct colour in RGB space */
1640 if (*npar + 4 >= l) {
1642 "erresc(38): Incorrect number of parameters (%d)\n",
1646 r = attr[*npar + 2];
1647 g = attr[*npar + 3];
1648 b = attr[*npar + 4];
1650 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1651 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1654 idx = TRUECOLOR(r, g, b);
1656 case 5: /* indexed colour */
1657 if (*npar + 2 >= l) {
1659 "erresc(38): Incorrect number of parameters (%d)\n",
1664 if(!BETWEEN(attr[*npar], 0, 255))
1665 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1669 case 0: /* implemented defined (only foreground) */
1670 case 1: /* transparent */
1671 case 3: /* direct colour in CMY space */
1672 case 4: /* direct colour in CMYK space */
1675 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1682 tsetattr(int *attr, int l) {
1686 for(i = 0; i < l; i++) {
1689 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
1690 | ATTR_BOLD | ATTR_ITALIC \
1692 term.c.attr.fg = defaultfg;
1693 term.c.attr.bg = defaultbg;
1696 term.c.attr.mode |= ATTR_BOLD;
1699 term.c.attr.mode |= ATTR_ITALIC;
1702 term.c.attr.mode |= ATTR_UNDERLINE;
1704 case 5: /* slow blink */
1705 case 6: /* rapid blink */
1706 term.c.attr.mode |= ATTR_BLINK;
1709 term.c.attr.mode |= ATTR_REVERSE;
1713 term.c.attr.mode &= ~ATTR_BOLD;
1716 term.c.attr.mode &= ~ATTR_ITALIC;
1719 term.c.attr.mode &= ~ATTR_UNDERLINE;
1723 term.c.attr.mode &= ~ATTR_BLINK;
1726 term.c.attr.mode &= ~ATTR_REVERSE;
1729 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1730 term.c.attr.fg = idx;
1733 term.c.attr.fg = defaultfg;
1736 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1737 term.c.attr.bg = idx;
1740 term.c.attr.bg = defaultbg;
1743 if(BETWEEN(attr[i], 30, 37)) {
1744 term.c.attr.fg = attr[i] - 30;
1745 } else if(BETWEEN(attr[i], 40, 47)) {
1746 term.c.attr.bg = attr[i] - 40;
1747 } else if(BETWEEN(attr[i], 90, 97)) {
1748 term.c.attr.fg = attr[i] - 90 + 8;
1749 } else if(BETWEEN(attr[i], 100, 107)) {
1750 term.c.attr.bg = attr[i] - 100 + 8;
1753 "erresc(default): gfx attr %d unknown\n",
1754 attr[i]), csidump();
1762 tsetscroll(int t, int b) {
1765 LIMIT(t, 0, term.row-1);
1766 LIMIT(b, 0, term.row-1);
1777 tsetmode(bool priv, bool set, int *args, int narg) {
1781 for(lim = args + narg; args < lim; ++args) {
1784 case 1: /* DECCKM -- Cursor key */
1785 MODBIT(term.mode, set, MODE_APPCURSOR);
1787 case 5: /* DECSCNM -- Reverse video */
1789 MODBIT(term.mode, set, MODE_REVERSE);
1790 if(mode != term.mode)
1791 redraw(REDRAW_TIMEOUT);
1793 case 6: /* DECOM -- Origin */
1794 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1797 case 7: /* DECAWM -- Auto wrap */
1798 MODBIT(term.mode, set, MODE_WRAP);
1800 case 0: /* Error (IGNORED) */
1801 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1802 case 3: /* DECCOLM -- Column (IGNORED) */
1803 case 4: /* DECSCLM -- Scroll (IGNORED) */
1804 case 8: /* DECARM -- Auto repeat (IGNORED) */
1805 case 18: /* DECPFF -- Printer feed (IGNORED) */
1806 case 19: /* DECPEX -- Printer extent (IGNORED) */
1807 case 42: /* DECNRCM -- National characters (IGNORED) */
1808 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1810 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1811 MODBIT(term.mode, !set, MODE_HIDE);
1813 case 9: /* X10 mouse compatibility mode */
1814 xsetpointermotion(0);
1815 MODBIT(term.mode, 0, MODE_MOUSE);
1816 MODBIT(term.mode, set, MODE_MOUSEX10);
1818 case 1000: /* 1000: report button press */
1819 xsetpointermotion(0);
1820 MODBIT(term.mode, 0, MODE_MOUSE);
1821 MODBIT(term.mode, set, MODE_MOUSEBTN);
1823 case 1002: /* 1002: report motion on button press */
1824 xsetpointermotion(0);
1825 MODBIT(term.mode, 0, MODE_MOUSE);
1826 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1828 case 1003: /* 1003: enable all mouse motions */
1829 xsetpointermotion(set);
1830 MODBIT(term.mode, 0, MODE_MOUSE);
1831 MODBIT(term.mode, set, MODE_MOUSEMANY);
1833 case 1004: /* 1004: send focus events to tty */
1834 MODBIT(term.mode, set, MODE_FOCUS);
1836 case 1006: /* 1006: extended reporting mode */
1837 MODBIT(term.mode, set, MODE_MOUSESGR);
1840 MODBIT(term.mode, set, MODE_8BIT);
1842 case 1049: /* swap screen & set/restore cursor as xterm */
1843 if (!allowaltscreen)
1845 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1847 case 47: /* swap screen */
1849 if (!allowaltscreen)
1851 alt = IS_SET(MODE_ALTSCREEN);
1853 tclearregion(0, 0, term.col-1,
1856 if(set ^ alt) /* set is always 1 or 0 */
1862 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1864 case 2004: /* 2004: bracketed paste mode */
1865 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1867 /* Not implemented mouse modes. See comments there. */
1868 case 1001: /* mouse highlight mode; can hang the
1869 terminal by design when implemented. */
1870 case 1005: /* UTF-8 mouse mode; will confuse
1871 applications not supporting UTF-8
1873 case 1015: /* urxvt mangled mouse mode; incompatible
1874 and can be mistaken for other control
1878 "erresc: unknown private set/reset mode %d\n",
1884 case 0: /* Error (IGNORED) */
1886 case 2: /* KAM -- keyboard action */
1887 MODBIT(term.mode, set, MODE_KBDLOCK);
1889 case 4: /* IRM -- Insertion-replacement */
1890 MODBIT(term.mode, set, MODE_INSERT);
1892 case 12: /* SRM -- Send/Receive */
1893 MODBIT(term.mode, !set, MODE_ECHO);
1895 case 20: /* LNM -- Linefeed/new line */
1896 MODBIT(term.mode, set, MODE_CRLF);
1900 "erresc: unknown set/reset mode %d\n",
1913 switch(csiescseq.mode) {
1916 fprintf(stderr, "erresc: unknown csi ");
1920 case '@': /* ICH -- Insert <n> blank char */
1921 DEFAULT(csiescseq.arg[0], 1);
1922 tinsertblank(csiescseq.arg[0]);
1924 case 'A': /* CUU -- Cursor <n> Up */
1925 DEFAULT(csiescseq.arg[0], 1);
1926 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1928 case 'B': /* CUD -- Cursor <n> Down */
1929 case 'e': /* VPR --Cursor <n> Down */
1930 DEFAULT(csiescseq.arg[0], 1);
1931 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1933 case 'i': /* MC -- Media Copy */
1934 switch(csiescseq.arg[0]) {
1939 tdumpline(term.c.y);
1945 term.mode &= ~MODE_PRINT;
1948 term.mode |= MODE_PRINT;
1952 case 'c': /* DA -- Device Attributes */
1953 if(csiescseq.arg[0] == 0)
1954 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1956 case 'C': /* CUF -- Cursor <n> Forward */
1957 case 'a': /* HPR -- Cursor <n> Forward */
1958 DEFAULT(csiescseq.arg[0], 1);
1959 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1961 case 'D': /* CUB -- Cursor <n> Backward */
1962 DEFAULT(csiescseq.arg[0], 1);
1963 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1965 case 'E': /* CNL -- Cursor <n> Down and first col */
1966 DEFAULT(csiescseq.arg[0], 1);
1967 tmoveto(0, term.c.y+csiescseq.arg[0]);
1969 case 'F': /* CPL -- Cursor <n> Up and first col */
1970 DEFAULT(csiescseq.arg[0], 1);
1971 tmoveto(0, term.c.y-csiescseq.arg[0]);
1973 case 'g': /* TBC -- Tabulation clear */
1974 switch(csiescseq.arg[0]) {
1975 case 0: /* clear current tab stop */
1976 term.tabs[term.c.x] = 0;
1978 case 3: /* clear all the tabs */
1979 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1985 case 'G': /* CHA -- Move to <col> */
1987 DEFAULT(csiescseq.arg[0], 1);
1988 tmoveto(csiescseq.arg[0]-1, term.c.y);
1990 case 'H': /* CUP -- Move to <row> <col> */
1992 DEFAULT(csiescseq.arg[0], 1);
1993 DEFAULT(csiescseq.arg[1], 1);
1994 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1996 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1997 DEFAULT(csiescseq.arg[0], 1);
1998 tputtab(csiescseq.arg[0]);
2000 case 'J': /* ED -- Clear screen */
2002 switch(csiescseq.arg[0]) {
2004 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2005 if(term.c.y < term.row-1) {
2006 tclearregion(0, term.c.y+1, term.col-1,
2012 tclearregion(0, 0, term.col-1, term.c.y-1);
2013 tclearregion(0, term.c.y, term.c.x, term.c.y);
2016 tclearregion(0, 0, term.col-1, term.row-1);
2022 case 'K': /* EL -- Clear line */
2023 switch(csiescseq.arg[0]) {
2025 tclearregion(term.c.x, term.c.y, term.col-1,
2029 tclearregion(0, term.c.y, term.c.x, term.c.y);
2032 tclearregion(0, term.c.y, term.col-1, term.c.y);
2036 case 'S': /* SU -- Scroll <n> line up */
2037 DEFAULT(csiescseq.arg[0], 1);
2038 tscrollup(term.top, csiescseq.arg[0]);
2040 case 'T': /* SD -- Scroll <n> line down */
2041 DEFAULT(csiescseq.arg[0], 1);
2042 tscrolldown(term.top, csiescseq.arg[0]);
2044 case 'L': /* IL -- Insert <n> blank lines */
2045 DEFAULT(csiescseq.arg[0], 1);
2046 tinsertblankline(csiescseq.arg[0]);
2048 case 'l': /* RM -- Reset Mode */
2049 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2051 case 'M': /* DL -- Delete <n> lines */
2052 DEFAULT(csiescseq.arg[0], 1);
2053 tdeleteline(csiescseq.arg[0]);
2055 case 'X': /* ECH -- Erase <n> char */
2056 DEFAULT(csiescseq.arg[0], 1);
2057 tclearregion(term.c.x, term.c.y,
2058 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2060 case 'P': /* DCH -- Delete <n> char */
2061 DEFAULT(csiescseq.arg[0], 1);
2062 tdeletechar(csiescseq.arg[0]);
2064 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2065 DEFAULT(csiescseq.arg[0], 1);
2066 tputtab(-csiescseq.arg[0]);
2068 case 'd': /* VPA -- Move to <row> */
2069 DEFAULT(csiescseq.arg[0], 1);
2070 tmoveato(term.c.x, csiescseq.arg[0]-1);
2072 case 'h': /* SM -- Set terminal mode */
2073 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2075 case 'm': /* SGR -- Terminal attribute (color) */
2076 tsetattr(csiescseq.arg, csiescseq.narg);
2078 case 'n': /* DSR – Device Status Report (cursor position) */
2079 if (csiescseq.arg[0] == 6) {
2080 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2081 term.c.y+1, term.c.x+1);
2085 case 'r': /* DECSTBM -- Set Scrolling Region */
2086 if(csiescseq.priv) {
2089 DEFAULT(csiescseq.arg[0], 1);
2090 DEFAULT(csiescseq.arg[1], term.row);
2091 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2095 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2096 tcursor(CURSOR_SAVE);
2098 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2099 tcursor(CURSOR_LOAD);
2110 for(i = 0; i < csiescseq.len; i++) {
2111 c = csiescseq.buf[i] & 0xff;
2114 } else if(c == '\n') {
2116 } else if(c == '\r') {
2118 } else if(c == 0x1b) {
2121 printf("(%02x)", c);
2129 memset(&csiescseq, 0, sizeof(csiescseq));
2138 narg = strescseq.narg;
2139 par = atoi(strescseq.args[0]);
2141 switch(strescseq.type) {
2142 case ']': /* OSC -- Operating System Command */
2148 xsettitle(strescseq.args[1]);
2150 case 4: /* color set */
2153 p = strescseq.args[2];
2155 case 104: /* color reset, here p = NULL */
2156 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2157 if (!xsetcolorname(j, p)) {
2158 fprintf(stderr, "erresc: invalid color %s\n", p);
2161 * TODO if defaultbg color is changed, borders
2169 case 'k': /* old title set compatibility */
2170 xsettitle(strescseq.args[0]);
2172 case 'P': /* DSC -- Device Control String */
2173 case '_': /* APC -- Application Program Command */
2174 case '^': /* PM -- Privacy Message */
2178 fprintf(stderr, "erresc: unknown str ");
2184 char *p = strescseq.buf;
2187 strescseq.buf[strescseq.len] = '\0';
2188 while(p && strescseq.narg < STR_ARG_SIZ)
2189 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2197 printf("ESC%c", strescseq.type);
2198 for(i = 0; i < strescseq.len; i++) {
2199 c = strescseq.buf[i] & 0xff;
2202 } else if(isprint(c)) {
2204 } else if(c == '\n') {
2206 } else if(c == '\r') {
2208 } else if(c == 0x1b) {
2211 printf("(%02x)", c);
2219 memset(&strescseq, 0, sizeof(strescseq));
2223 tprinter(char *s, size_t len) {
2224 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2225 fprintf(stderr, "Error writing in %s:%s\n",
2226 opt_io, strerror(errno));
2233 toggleprinter(const Arg *arg) {
2234 term.mode ^= MODE_PRINT;
2238 printscreen(const Arg *arg) {
2243 printsel(const Arg *arg) {
2251 if((ptr = getsel())) {
2252 tprinter(ptr, strlen(ptr));
2261 bp = &term.line[n][0];
2262 end = &bp[term.col-1];
2263 while(end > bp && !strcmp(" ", end->c))
2265 if(bp != end || strcmp(bp->c, " ")) {
2266 for( ;bp <= end; ++bp)
2267 tprinter(bp->c, strlen(bp->c));
2276 for(i = 0; i < term.row; ++i)
2285 while(x < term.col && n--)
2286 for(++x; x < term.col && !term.tabs[x]; ++x)
2290 for(--x; x > 0 && !term.tabs[x]; --x)
2293 tmoveto(x, term.c.y);
2297 techo(char *buf, int len) {
2298 for(; len > 0; buf++, len--) {
2301 if(c < 0x20 || c == 0177) { /* control code */
2302 if(c != '\n' && c != '\r' && c != '\t') {
2316 tdeftran(char ascii) {
2318 static char tbl[][2] = {
2319 {'0', CS_GRAPHIC0}, {'1', CS_GRAPHIC1}, {'A', CS_UK},
2320 {'B', CS_USA}, {'<', CS_MULTI}, {'K', CS_GER},
2321 {'5', CS_FIN}, {'C', CS_FIN},
2325 for (bp = &tbl[0]; (c = (*bp)[0]) && c != ascii; ++bp)
2329 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2331 term.trantbl[term.icharset] = (*bp)[1];
2336 MODBIT(term.c.attr.mode,
2337 term.trantbl[term.charset] == CS_GRAPHIC0,
2342 tputc(char *c, int len) {
2344 bool control = ascii < '\x20' || ascii == 0177;
2351 utf8decode(c, &unicodep, UTF_SIZ);
2352 width = wcwidth(unicodep);
2355 if(IS_SET(MODE_PRINT))
2359 * STR sequences must be checked before anything else
2360 * because it can use some control codes as part of the sequence.
2362 if(term.esc & ESC_STR) {
2365 term.esc = ESC_START | ESC_STR_END;
2367 case '\a': /* backwards compatibility to xterm */
2372 if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2373 memmove(&strescseq.buf[strescseq.len], c, len);
2374 strescseq.len += len;
2377 * Here is a bug in terminals. If the user never sends
2378 * some code to stop the str or esc command, then st
2379 * will stop responding. But this is better than
2380 * silently failing with unknown characters. At least
2381 * then users will report back.
2383 * In the case users ever get fixed, here is the code:
2395 * Actions of control codes must be performed as soon they arrive
2396 * because they can be embedded inside a control sequence, and
2397 * they must not cause conflicts with sequences.
2405 tmoveto(term.c.x-1, term.c.y);
2408 tmoveto(0, term.c.y);
2413 /* go to first col if the mode is set */
2414 tnewline(IS_SET(MODE_CRLF));
2416 case '\a': /* BEL */
2417 if(!(xw.state & WIN_FOCUSED))
2420 XBell(xw.dpy, bellvolume);
2422 case '\033': /* ESC */
2424 term.esc = ESC_START;
2426 case '\016': /* SO */
2430 case '\017': /* SI */
2434 case '\032': /* SUB */
2435 case '\030': /* CAN */
2438 case '\005': /* ENQ (IGNORED) */
2439 case '\000': /* NUL (IGNORED) */
2440 case '\021': /* XON (IGNORED) */
2441 case '\023': /* XOFF (IGNORED) */
2442 case 0177: /* DEL (IGNORED) */
2445 } else if(term.esc & ESC_START) {
2446 if(term.esc & ESC_CSI) {
2447 csiescseq.buf[csiescseq.len++] = ascii;
2448 if(BETWEEN(ascii, 0x40, 0x7E)
2449 || csiescseq.len >= \
2450 sizeof(csiescseq.buf)-1) {
2455 } else if(term.esc & ESC_STR_END) {
2459 } else if(term.esc & ESC_ALTCHARSET) {
2463 } else if(term.esc & ESC_TEST) {
2464 if(ascii == '8') { /* DEC screen alignment test. */
2465 char E[UTF_SIZ] = "E";
2468 for(x = 0; x < term.col; ++x) {
2469 for(y = 0; y < term.row; ++y)
2470 tsetchar(E, &term.c.attr, x, y);
2477 term.esc |= ESC_CSI;
2480 term.esc |= ESC_TEST;
2482 case 'P': /* DCS -- Device Control String */
2483 case '_': /* APC -- Application Program Command */
2484 case '^': /* PM -- Privacy Message */
2485 case ']': /* OSC -- Operating System Command */
2486 case 'k': /* old title set compatibility */
2488 strescseq.type = ascii;
2489 term.esc |= ESC_STR;
2491 case '(': /* set primary charset G0 */
2492 case ')': /* set secondary charset G1 */
2493 case '*': /* set tertiary charset G2 */
2494 case '+': /* set quaternary charset G3 */
2495 term.icharset = ascii - '(';
2496 term.esc |= ESC_ALTCHARSET;
2498 case 'D': /* IND -- Linefeed */
2499 if(term.c.y == term.bot) {
2500 tscrollup(term.top, 1);
2502 tmoveto(term.c.x, term.c.y+1);
2506 case 'E': /* NEL -- Next line */
2507 tnewline(1); /* always go to first col */
2510 case 'H': /* HTS -- Horizontal tab stop */
2511 term.tabs[term.c.x] = 1;
2514 case 'M': /* RI -- Reverse index */
2515 if(term.c.y == term.top) {
2516 tscrolldown(term.top, 1);
2518 tmoveto(term.c.x, term.c.y-1);
2522 case 'Z': /* DECID -- Identify Terminal */
2523 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2526 case 'c': /* RIS -- Reset to inital state */
2532 case '=': /* DECPAM -- Application keypad */
2533 term.mode |= MODE_APPKEYPAD;
2536 case '>': /* DECPNM -- Normal keypad */
2537 term.mode &= ~MODE_APPKEYPAD;
2540 case '7': /* DECSC -- Save Cursor */
2541 tcursor(CURSOR_SAVE);
2544 case '8': /* DECRC -- Restore Cursor */
2545 tcursor(CURSOR_LOAD);
2548 case '\\': /* ST -- Stop */
2552 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2553 (uchar) ascii, isprint(ascii)? ascii:'.');
2558 * All characters which form part of a sequence are not
2564 * Display control codes only if we are in graphic mode
2566 if(control && !(term.c.attr.mode & ATTR_GFX))
2568 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2570 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2571 term.line[term.c.y][term.c.x].mode |= ATTR_WRAP;
2575 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
2576 memmove(&term.line[term.c.y][term.c.x+1],
2577 &term.line[term.c.y][term.c.x],
2578 (term.col - term.c.x - 1) * sizeof(Glyph));
2581 if(term.c.x+width > term.col)
2584 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2587 term.line[term.c.y][term.c.x].mode |= ATTR_WIDE;
2588 if(term.c.x+1 < term.col) {
2589 term.line[term.c.y][term.c.x+1].c[0] = '\0';
2590 term.line[term.c.y][term.c.x+1].mode = ATTR_WDUMMY;
2593 if(term.c.x+width < term.col) {
2594 tmoveto(term.c.x+width, term.c.y);
2596 term.c.state |= CURSOR_WRAPNEXT;
2601 tresize(int col, int row) {
2603 int minrow = MIN(row, term.row);
2604 int mincol = MIN(col, term.col);
2605 int slide = term.c.y - row + 1;
2609 if(col < 1 || row < 1)
2612 /* free unneeded rows */
2616 * slide screen to keep cursor where we expect it -
2617 * tscrollup would work here, but we can optimize to
2618 * memmove because we're freeing the earlier lines
2620 for(/* i = 0 */; i < slide; i++) {
2624 memmove(term.line, term.line + slide, row * sizeof(Line));
2625 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2627 for(i += row; i < term.row; i++) {
2632 /* resize to new height */
2633 term.line = xrealloc(term.line, row * sizeof(Line));
2634 term.alt = xrealloc(term.alt, row * sizeof(Line));
2635 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2636 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2638 /* resize each row to new width, zero-pad if needed */
2639 for(i = 0; i < minrow; i++) {
2641 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2642 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2645 /* allocate any new rows */
2646 for(/* i == minrow */; i < row; i++) {
2648 term.line[i] = xmalloc(col * sizeof(Glyph));
2649 term.alt[i] = xmalloc(col * sizeof(Glyph));
2651 if(col > term.col) {
2652 bp = term.tabs + term.col;
2654 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2655 while(--bp > term.tabs && !*bp)
2657 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2660 /* update terminal size */
2663 /* reset scrolling region */
2664 tsetscroll(0, row-1);
2665 /* make use of the LIMIT in tmoveto */
2666 tmoveto(term.c.x, term.c.y);
2667 /* Clearing both screens */
2670 if(mincol < col && 0 < minrow) {
2671 tclearregion(mincol, 0, col - 1, minrow - 1);
2673 if(0 < col && minrow < row) {
2674 tclearregion(0, minrow, col - 1, row - 1);
2676 tcursor(CURSOR_SAVE);
2678 tcursor(CURSOR_LOAD);
2679 } while(orig != term.line);
2685 xresize(int col, int row) {
2686 xw.tw = MAX(1, col * xw.cw);
2687 xw.th = MAX(1, row * xw.ch);
2689 XFreePixmap(xw.dpy, xw.buf);
2690 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2691 DefaultDepth(xw.dpy, xw.scr));
2692 XftDrawChange(xw.draw, xw.buf);
2693 xclear(0, 0, xw.w, xw.h);
2696 static inline ushort
2697 sixd_to_16bit(int x) {
2698 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2704 XRenderColor color = { .alpha = 0xffff };
2709 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2710 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2713 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
2714 for(i = 0; i < LEN(colorname); i++) {
2717 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2718 die("Could not allocate color '%s'\n", colorname[i]);
2722 /* load colors [16-255] ; same colors as xterm */
2723 for(i = 16, r = 0; r < 6; r++) {
2724 for(g = 0; g < 6; g++) {
2725 for(b = 0; b < 6; b++) {
2726 color.red = sixd_to_16bit(r);
2727 color.green = sixd_to_16bit(g);
2728 color.blue = sixd_to_16bit(b);
2729 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
2730 die("Could not allocate color %d\n", i);
2737 for(r = 0; r < 24; r++, i++) {
2738 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
2739 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
2741 die("Could not allocate color %d\n", i);
2748 xsetcolorname(int x, const char *name) {
2749 XRenderColor color = { .alpha = 0xffff };
2751 if(!BETWEEN(x, 0, LEN(colorname)))
2754 if(BETWEEN(x, 16, 16 + 215)) {
2755 int r = (x - 16) / 36, g = ((x - 16) % 36) / 6, b = (x - 16) % 6;
2756 color.red = sixd_to_16bit(r);
2757 color.green = sixd_to_16bit(g);
2758 color.blue = sixd_to_16bit(b);
2759 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2760 return 0; /* something went wrong */
2763 } else if(BETWEEN(x, 16 + 216, 255)) {
2764 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (x - (16 + 216));
2765 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2766 return 0; /* something went wrong */
2770 name = colorname[x];
2773 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &colour))
2780 xtermclear(int col1, int row1, int col2, int row2) {
2781 XftDrawRect(xw.draw,
2782 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2783 borderpx + col1 * xw.cw,
2784 borderpx + row1 * xw.ch,
2785 (col2-col1+1) * xw.cw,
2786 (row2-row1+1) * xw.ch);
2790 * Absolute coordinates.
2793 xclear(int x1, int y1, int x2, int y2) {
2794 XftDrawRect(xw.draw,
2795 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2796 x1, y1, x2-x1, y2-y1);
2801 XClassHint class = {opt_class ? opt_class : termname, termname};
2802 XWMHints wm = {.flags = InputHint, .input = 1};
2803 XSizeHints *sizeh = NULL;
2805 sizeh = XAllocSizeHints();
2807 sizeh->flags = PSize | PResizeInc | PBaseSize;
2808 sizeh->height = xw.h;
2809 sizeh->width = xw.w;
2810 sizeh->height_inc = xw.ch;
2811 sizeh->width_inc = xw.cw;
2812 sizeh->base_height = 2 * borderpx;
2813 sizeh->base_width = 2 * borderpx;
2814 if(xw.isfixed == True) {
2815 sizeh->flags |= PMaxSize | PMinSize;
2816 sizeh->min_width = sizeh->max_width = xw.w;
2817 sizeh->min_height = sizeh->max_height = xw.h;
2819 if(xw.gm & (XValue|YValue)) {
2820 sizeh->flags |= USPosition | PWinGravity;
2823 sizeh->win_gravity = xgeommasktogravity(xw.gm);
2826 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2832 xgeommasktogravity(int mask) {
2833 switch(mask & (XNegative|YNegative)) {
2835 return NorthWestGravity;
2837 return NorthEastGravity;
2839 return SouthWestGravity;
2841 return SouthEastGravity;
2845 xloadfont(Font *f, FcPattern *pattern) {
2849 match = FcFontMatch(NULL, pattern, &result);
2853 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2854 FcPatternDestroy(match);
2859 f->pattern = FcPatternDuplicate(pattern);
2861 f->ascent = f->match->ascent;
2862 f->descent = f->match->descent;
2864 f->rbearing = f->match->max_advance_width;
2866 f->height = f->ascent + f->descent;
2867 f->width = f->lbearing + f->rbearing;
2873 xloadfonts(char *fontstr, double fontsize) {
2875 FcResult r_sz, r_psz;
2878 if(fontstr[0] == '-') {
2879 pattern = XftXlfdParse(fontstr, False, False);
2881 pattern = FcNameParse((FcChar8 *)fontstr);
2885 die("st: can't open font %s\n", fontstr);
2888 FcPatternDel(pattern, FC_PIXEL_SIZE);
2889 FcPatternDel(pattern, FC_SIZE);
2890 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2891 usedfontsize = fontsize;
2893 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2894 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2895 if(r_psz == FcResultMatch) {
2896 usedfontsize = fontval;
2897 } else if(r_sz == FcResultMatch) {
2901 * Default font size is 12, if none given. This is to
2902 * have a known usedfontsize value.
2904 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2909 FcConfigSubstitute(0, pattern, FcMatchPattern);
2910 FcDefaultSubstitute(pattern);
2912 if(xloadfont(&dc.font, pattern))
2913 die("st: can't open font %s\n", fontstr);
2915 if(usedfontsize < 0) {
2916 FcPatternGetDouble(dc.font.match->pattern,
2917 FC_PIXEL_SIZE, 0, &fontval);
2918 usedfontsize = fontval;
2921 /* Setting character width and height. */
2922 xw.cw = CEIL(dc.font.width * cwscale);
2923 xw.ch = CEIL(dc.font.height * chscale);
2925 FcPatternDel(pattern, FC_SLANT);
2926 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2927 if(xloadfont(&dc.ifont, pattern))
2928 die("st: can't open font %s\n", fontstr);
2930 FcPatternDel(pattern, FC_WEIGHT);
2931 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2932 if(xloadfont(&dc.ibfont, pattern))
2933 die("st: can't open font %s\n", fontstr);
2935 FcPatternDel(pattern, FC_SLANT);
2936 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2937 if(xloadfont(&dc.bfont, pattern))
2938 die("st: can't open font %s\n", fontstr);
2940 FcPatternDestroy(pattern);
2944 xloadfontset(Font *f) {
2947 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
2953 xunloadfont(Font *f) {
2954 XftFontClose(xw.dpy, f->match);
2955 FcPatternDestroy(f->pattern);
2957 FcFontSetDestroy(f->set);
2961 xunloadfonts(void) {
2964 /* Free the loaded fonts in the font cache. */
2965 for(i = 0; i < frclen; i++) {
2966 XftFontClose(xw.dpy, frc[i].font);
2970 xunloadfont(&dc.font);
2971 xunloadfont(&dc.bfont);
2972 xunloadfont(&dc.ifont);
2973 xunloadfont(&dc.ibfont);
2977 xzoom(const Arg *arg) {
2979 xloadfonts(usedfont, usedfontsize + arg->i);
2989 pid_t thispid = getpid();
2991 if(!(xw.dpy = XOpenDisplay(NULL)))
2992 die("Can't open display\n");
2993 xw.scr = XDefaultScreen(xw.dpy);
2994 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
2998 die("Could not init fontconfig.\n");
3000 usedfont = (opt_font == NULL)? font : opt_font;
3001 xloadfonts(usedfont, 0);
3004 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3007 /* adjust fixed window geometry */
3008 xw.w = 2 * borderpx + term.col * xw.cw;
3009 xw.h = 2 * borderpx + term.row * xw.ch;
3010 if(xw.gm & XNegative)
3011 xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
3012 if(xw.gm & YNegative)
3013 xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
3016 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3017 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3018 xw.attrs.bit_gravity = NorthWestGravity;
3019 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3020 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3021 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3022 xw.attrs.colormap = xw.cmap;
3024 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3025 XRootWindow(xw.dpy, xw.scr);
3026 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
3027 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3028 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3029 | CWEventMask | CWColormap, &xw.attrs);
3031 memset(&gcvalues, 0, sizeof(gcvalues));
3032 gcvalues.graphics_exposures = False;
3033 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3035 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3036 DefaultDepth(xw.dpy, xw.scr));
3037 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3038 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3040 /* Xft rendering context */
3041 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3044 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3045 XSetLocaleModifiers("@im=local");
3046 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3047 XSetLocaleModifiers("@im=");
3048 if((xw.xim = XOpenIM(xw.dpy,
3049 NULL, NULL, NULL)) == NULL) {
3050 die("XOpenIM failed. Could not open input"
3055 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3056 | XIMStatusNothing, XNClientWindow, xw.win,
3057 XNFocusWindow, xw.win, NULL);
3059 die("XCreateIC failed. Could not obtain input method.\n");
3061 /* white cursor, black outline */
3062 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3063 XDefineCursor(xw.dpy, xw.win, cursor);
3064 XRecolorCursor(xw.dpy, cursor,
3065 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3066 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3068 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3069 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3070 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3071 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3073 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3074 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3075 PropModeReplace, (uchar *)&thispid, 1);
3078 XMapWindow(xw.dpy, xw.win);
3080 XSync(xw.dpy, False);
3084 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3085 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3086 width = charlen * xw.cw, xp, i;
3088 int u8fl, u8fblen, u8cblen, doesexist;
3091 Font *font = &dc.font;
3093 FcPattern *fcpattern, *fontpattern;
3094 FcFontSet *fcsets[] = { NULL };
3095 FcCharSet *fccharset;
3096 Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3097 XRenderColor colfg, colbg;
3101 frcflags = FRC_NORMAL;
3103 if(base.mode & ATTR_ITALIC) {
3104 if(base.fg == defaultfg)
3105 base.fg = defaultitalic;
3107 frcflags = FRC_ITALIC;
3108 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3109 if(base.fg == defaultfg)
3110 base.fg = defaultitalic;
3112 frcflags = FRC_ITALICBOLD;
3113 } else if(base.mode & ATTR_UNDERLINE) {
3114 if(base.fg == defaultfg)
3115 base.fg = defaultunderline;
3118 if(IS_TRUECOL(base.fg)) {
3119 colfg.alpha = 0xffff;
3120 colfg.red = TRUERED(base.fg);
3121 colfg.green = TRUEGREEN(base.fg);
3122 colfg.blue = TRUEBLUE(base.fg);
3123 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3126 fg = &dc.col[base.fg];
3129 if(IS_TRUECOL(base.bg)) {
3130 colbg.alpha = 0xffff;
3131 colbg.green = TRUEGREEN(base.bg);
3132 colbg.red = TRUERED(base.bg);
3133 colbg.blue = TRUEBLUE(base.bg);
3134 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3137 bg = &dc.col[base.bg];
3140 if(base.mode & ATTR_BOLD) {
3141 if(BETWEEN(base.fg, 0, 7)) {
3142 /* basic system colors */
3143 fg = &dc.col[base.fg + 8];
3144 } else if(BETWEEN(base.fg, 16, 195)) {
3146 fg = &dc.col[base.fg + 36];
3147 } else if(BETWEEN(base.fg, 232, 251)) {
3149 fg = &dc.col[base.fg + 4];
3152 * Those ranges will not be brightened:
3153 * 8 - 15 – bright system colors
3154 * 196 - 231 – highest 256 color cube
3155 * 252 - 255 – brightest colors in greyscale
3158 frcflags = FRC_BOLD;
3161 if(IS_SET(MODE_REVERSE)) {
3162 if(fg == &dc.col[defaultfg]) {
3163 fg = &dc.col[defaultbg];
3165 colfg.red = ~fg->color.red;
3166 colfg.green = ~fg->color.green;
3167 colfg.blue = ~fg->color.blue;
3168 colfg.alpha = fg->color.alpha;
3169 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3174 if(bg == &dc.col[defaultbg]) {
3175 bg = &dc.col[defaultfg];
3177 colbg.red = ~bg->color.red;
3178 colbg.green = ~bg->color.green;
3179 colbg.blue = ~bg->color.blue;
3180 colbg.alpha = bg->color.alpha;
3181 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3187 if(base.mode & ATTR_REVERSE) {
3193 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3196 /* Intelligent cleaning up of the borders. */
3198 xclear(0, (y == 0)? 0 : winy, borderpx,
3199 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3201 if(x + charlen >= term.col) {
3202 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3203 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3206 xclear(winx, 0, winx + width, borderpx);
3208 xclear(winx, winy + xw.ch, winx + width, xw.h);
3210 /* Clean up the region we want to draw to. */
3211 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3213 /* Set the clip region because Xft is sometimes dirty. */
3218 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3220 for(xp = winx; bytelen > 0;) {
3222 * Search for the range in the to be printed string of glyphs
3223 * that are in the main font. Then print that range. If
3224 * some glyph is found that is not in the font, do the
3230 oneatatime = font->width != xw.cw;
3233 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3237 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3238 if(oneatatime || !doesexist || bytelen <= 0) {
3239 if(oneatatime || bytelen <= 0) {
3247 XftDrawStringUtf8(xw.draw, fg,
3249 winy + font->ascent,
3267 /* Search the font cache. */
3268 for(i = 0; i < frclen; i++) {
3269 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3270 && frc[i].flags == frcflags) {
3275 /* Nothing was found. */
3279 fcsets[0] = font->set;
3282 * Nothing was found in the cache. Now use
3283 * some dozen of Fontconfig calls to get the
3284 * font for one single character.
3286 * Xft and fontconfig are design failures.
3288 fcpattern = FcPatternDuplicate(font->pattern);
3289 fccharset = FcCharSetCreate();
3291 FcCharSetAddChar(fccharset, unicodep);
3292 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3294 FcPatternAddBool(fcpattern, FC_SCALABLE,
3297 FcConfigSubstitute(0, fcpattern,
3299 FcDefaultSubstitute(fcpattern);
3301 fontpattern = FcFontSetMatch(0, fcsets,
3302 FcTrue, fcpattern, &fcres);
3305 * Overwrite or create the new cache entry.
3307 if(frclen >= LEN(frc)) {
3308 frclen = LEN(frc) - 1;
3309 XftFontClose(xw.dpy, frc[frclen].font);
3312 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3314 frc[frclen].flags = frcflags;
3319 FcPatternDestroy(fcpattern);
3320 FcCharSetDestroy(fccharset);
3323 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3324 xp, winy + frc[i].font->ascent,
3325 (FcChar8 *)u8c, u8cblen);
3327 xp += xw.cw * wcwidth(unicodep);
3331 * This is how the loop above actually should be. Why does the
3332 * application have to care about font details?
3334 * I have to repeat: Xft and Fontconfig are design failures.
3337 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3338 winy + font->ascent, (FcChar8 *)s, bytelen);
3341 if(base.mode & ATTR_UNDERLINE) {
3342 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3346 /* Reset clip to none. */
3347 XftDrawSetClip(xw.draw, 0);
3352 static int oldx = 0, oldy = 0;
3353 int sl, width, curx;
3354 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3356 LIMIT(oldx, 0, term.col-1);
3357 LIMIT(oldy, 0, term.row-1);
3361 /* adjust position if in dummy */
3362 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3364 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3367 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3369 /* remove the old cursor */
3370 sl = utf8len(term.line[oldy][oldx].c);
3371 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3372 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3375 /* draw the new one */
3376 if(!(IS_SET(MODE_HIDE))) {
3377 if(xw.state & WIN_FOCUSED) {
3378 if(IS_SET(MODE_REVERSE)) {
3379 g.mode |= ATTR_REVERSE;
3385 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3387 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3389 XftDrawRect(xw.draw, &dc.col[defaultcs],
3390 borderpx + curx * xw.cw,
3391 borderpx + term.c.y * xw.ch,
3393 XftDrawRect(xw.draw, &dc.col[defaultcs],
3394 borderpx + curx * xw.cw,
3395 borderpx + term.c.y * xw.ch,
3397 XftDrawRect(xw.draw, &dc.col[defaultcs],
3398 borderpx + (curx + 1) * xw.cw - 1,
3399 borderpx + term.c.y * xw.ch,
3401 XftDrawRect(xw.draw, &dc.col[defaultcs],
3402 borderpx + curx * xw.cw,
3403 borderpx + (term.c.y + 1) * xw.ch - 1,
3406 oldx = curx, oldy = term.c.y;
3412 xsettitle(char *p) {
3415 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3417 XSetWMName(xw.dpy, xw.win, &prop);
3418 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3424 xsettitle(opt_title ? opt_title : "st");
3428 redraw(int timeout) {
3429 struct timespec tv = {0, timeout * 1000};
3434 nanosleep(&tv, NULL);
3435 XSync(xw.dpy, False); /* necessary for a good tput flash */
3441 drawregion(0, 0, term.col, term.row);
3442 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3444 XSetForeground(xw.dpy, dc.gc,
3445 dc.col[IS_SET(MODE_REVERSE)?
3446 defaultfg : defaultbg].pixel);
3450 drawregion(int x1, int y1, int x2, int y2) {
3451 int ic, ib, x, y, ox, sl;
3453 char buf[DRAW_BUF_SIZ];
3454 bool ena_sel = sel.ob.x != -1;
3457 if(sel.alt != IS_SET(MODE_ALTSCREEN))
3460 if(!(xw.state & WIN_VISIBLE))
3463 for(y = y1; y < y2; y++) {
3467 xtermclear(0, y, term.col, y);
3469 base = term.line[y][0];
3471 for(x = x1; x < x2; x++) {
3472 new = term.line[y][x];
3473 if(new.mode == ATTR_WDUMMY)
3475 if(ena_sel && selected(x, y))
3476 new.mode ^= ATTR_REVERSE;
3477 if(ib > 0 && (ATTRCMP(base, new)
3478 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3479 xdraws(buf, base, ox, y, ic, ib);
3487 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3488 memcpy(buf+ib, new.c, sl);
3490 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3493 xdraws(buf, base, ox, y, ic, ib);
3499 expose(XEvent *ev) {
3500 XExposeEvent *e = &ev->xexpose;
3502 if(xw.state & WIN_REDRAW) {
3504 xw.state &= ~WIN_REDRAW;
3510 visibility(XEvent *ev) {
3511 XVisibilityEvent *e = &ev->xvisibility;
3513 if(e->state == VisibilityFullyObscured) {
3514 xw.state &= ~WIN_VISIBLE;
3515 } else if(!(xw.state & WIN_VISIBLE)) {
3516 /* need a full redraw for next Expose, not just a buf copy */
3517 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3523 xw.state &= ~WIN_VISIBLE;
3527 xsetpointermotion(int set) {
3528 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3529 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3533 xseturgency(int add) {
3534 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3536 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
3537 XSetWMHints(xw.dpy, xw.win, h);
3543 XFocusChangeEvent *e = &ev->xfocus;
3545 if(e->mode == NotifyGrab)
3548 if(ev->type == FocusIn) {
3549 XSetICFocus(xw.xic);
3550 xw.state |= WIN_FOCUSED;
3552 if(IS_SET(MODE_FOCUS))
3553 ttywrite("\033[I", 3);
3555 XUnsetICFocus(xw.xic);
3556 xw.state &= ~WIN_FOCUSED;
3557 if(IS_SET(MODE_FOCUS))
3558 ttywrite("\033[O", 3);
3563 match(uint mask, uint state) {
3564 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3568 numlock(const Arg *dummy) {
3573 kmap(KeySym k, uint state) {
3577 /* Check for mapped keys out of X11 function keys. */
3578 for(i = 0; i < LEN(mappedkeys); i++) {
3579 if(mappedkeys[i] == k)
3582 if(i == LEN(mappedkeys)) {
3583 if((k & 0xFFFF) < 0xFD00)
3587 for(kp = key; kp < key + LEN(key); kp++) {
3591 if(!match(kp->mask, state))
3594 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3596 if(term.numlock && kp->appkey == 2)
3599 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3602 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3612 kpress(XEvent *ev) {
3613 XKeyEvent *e = &ev->xkey;
3615 char buf[32], *customkey;
3621 if(IS_SET(MODE_KBDLOCK))
3624 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3626 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3627 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3628 bp->func(&(bp->arg));
3633 /* 2. custom keys from config.h */
3634 if((customkey = kmap(ksym, e->state))) {
3635 ttysend(customkey, strlen(customkey));
3639 /* 3. composed string from input method */
3642 if(len == 1 && e->state & Mod1Mask) {
3643 if(IS_SET(MODE_8BIT)) {
3646 len = utf8encode(c, buf, UTF_SIZ);
3659 cmessage(XEvent *e) {
3662 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3664 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3665 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3666 xw.state |= WIN_FOCUSED;
3668 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3669 xw.state &= ~WIN_FOCUSED;
3671 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3672 /* Send SIGHUP to shell */
3679 cresize(int width, int height) {
3687 col = (xw.w - 2 * borderpx) / xw.cw;
3688 row = (xw.h - 2 * borderpx) / xw.ch;
3697 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3700 cresize(e->xconfigure.width, e->xconfigure.height);
3706 int w = xw.w, h = xw.h;
3708 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3709 struct timeval drawtimeout, *tv = NULL, now, last, lastblink;
3711 /* Waiting for window mapping */
3713 XNextEvent(xw.dpy, &ev);
3714 if(ev.type == ConfigureNotify) {
3715 w = ev.xconfigure.width;
3716 h = ev.xconfigure.height;
3717 } else if(ev.type == MapNotify) {
3725 gettimeofday(&last, NULL);
3728 for(xev = actionfps;;) {
3732 FD_SET(cmdfd, &rfd);
3735 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3738 die("select failed: %s\n", strerror(errno));
3740 if(FD_ISSET(cmdfd, &rfd)) {
3743 blinkset = tattrset(ATTR_BLINK);
3745 MODBIT(term.mode, 0, MODE_BLINK);
3749 if(FD_ISSET(xfd, &rfd))
3752 gettimeofday(&now, NULL);
3753 drawtimeout.tv_sec = 0;
3754 drawtimeout.tv_usec = (1000/xfps) * 1000;
3758 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3759 tsetdirtattr(ATTR_BLINK);
3760 term.mode ^= MODE_BLINK;
3764 deltatime = TIMEDIFF(now, last);
3765 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3772 while(XPending(xw.dpy)) {
3773 XNextEvent(xw.dpy, &ev);
3774 if(XFilterEvent(&ev, None))
3776 if(handler[ev.type])
3777 (handler[ev.type])(&ev);
3783 if(xev && !FD_ISSET(xfd, &rfd))
3785 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3787 if(TIMEDIFF(now, lastblink) \
3789 drawtimeout.tv_usec = 1;
3791 drawtimeout.tv_usec = (1000 * \
3806 die("%s " VERSION " (c) 2010-2014 st engineers\n" \
3807 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3808 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3812 main(int argc, char *argv[]) {
3814 uint cols = 80, rows = 24;
3821 allowaltscreen = false;
3824 opt_class = EARGF(usage());
3827 /* eat all remaining arguments */
3830 if(argv[1] != NULL && opt_title == NULL) {
3831 titles = xstrdup(argv[1]);
3832 opt_title = basename(titles);
3837 opt_font = EARGF(usage());
3840 xw.gm = XParseGeometry(EARGF(usage()),
3841 &xw.l, &xw.t, &cols, &rows);
3847 opt_io = EARGF(usage());
3850 opt_title = EARGF(usage());
3853 opt_embed = EARGF(usage());
3861 setlocale(LC_CTYPE, "");
3862 XSetLocaleModifiers("");
3863 tnew(cols? cols : 1, rows? rows : 1);