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>
39 #define Draw XftDraw *
40 #define Colour XftColor
41 #define Colourmap Colormap
42 #define Rectangle XRectangle
46 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
48 #elif defined(__FreeBSD__) || defined(__DragonFly__)
54 #define XEMBED_FOCUS_IN 4
55 #define XEMBED_FOCUS_OUT 5
59 #define ESC_BUF_SIZ (128*UTF_SIZ)
60 #define ESC_ARG_SIZ 16
61 #define STR_BUF_SIZ ESC_BUF_SIZ
62 #define STR_ARG_SIZ ESC_ARG_SIZ
63 #define DRAW_BUF_SIZ 20*1024
64 #define XK_ANY_MOD UINT_MAX
66 #define XK_SWITCH_MOD (1<<13)
68 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
71 #define SERRNO strerror(errno)
72 #define MIN(a, b) ((a) < (b) ? (a) : (b))
73 #define MAX(a, b) ((a) < (b) ? (b) : (a))
74 #define LEN(a) (sizeof(a) / sizeof(a[0]))
75 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
76 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
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_usec-t2.tv_usec)/1000)
81 #define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
83 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
84 #define IS_TRUECOL(x) (1 << 24 & (x))
85 #define TRUERED(x) (((x) & 0xff0000) >> 8)
86 #define TRUEGREEN(x) (((x) & 0xff00))
87 #define TRUEBLUE(x) (((x) & 0xff) << 8)
90 #define VT102ID "\033[?6c"
92 enum glyph_attribute {
105 enum cursor_movement {
123 MODE_MOUSEMOTION = 64,
128 MODE_APPCURSOR = 2048,
129 MODE_MOUSESGR = 4096,
134 MODE_MOUSEX10 = 131072,
135 MODE_MOUSEMANY = 262144,
136 MODE_BRCKTPASTE = 524288,
137 MODE_PRINT = 1048576,
138 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
155 ESC_STR = 4, /* DSC, 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;
183 char c[UTF_SIZ]; /* character code */
184 ushort mode; /* attribute flags */
185 uint32_t fg; /* foreground */
186 uint32_t bg; /* background */
192 Glyph attr; /* current char attributes */
198 /* CSI Escape sequence structs */
199 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
201 char buf[ESC_BUF_SIZ]; /* raw string */
202 int len; /* raw string length */
204 int arg[ESC_ARG_SIZ];
205 int narg; /* nb of args */
209 /* STR Escape sequence structs */
210 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
212 char type; /* ESC type ... */
213 char buf[STR_BUF_SIZ]; /* raw string */
214 int len; /* raw string length */
215 char *args[STR_ARG_SIZ];
216 int narg; /* nb of args */
219 /* Internal representation of the screen */
221 int row; /* nb row */
222 int col; /* nb col */
223 Line *line; /* screen */
224 Line *alt; /* alternate screen */
225 bool *dirty; /* dirtyness of lines */
226 TCursor c; /* cursor */
227 int top; /* top scroll limit */
228 int bot; /* bottom scroll limit */
229 int mode; /* terminal mode flags */
230 int esc; /* escape state flags */
231 char trantbl[4]; /* charset table translation */
232 int charset; /* current charset */
233 int icharset; /* selected charset for sequence */
234 bool numlock; /* lock numbers in keyboard */
238 /* Purely graphic info */
244 Atom xembed, wmdeletewin, netwmname, netwmpid;
249 XSetWindowAttributes attrs;
251 bool isfixed; /* is fixed geometry? */
252 int fx, fy, fw, fh; /* fixed geometry */
253 int tw, th; /* tty width and height */
254 int w, h; /* window width and height */
255 int ch; /* char height */
256 int cw; /* char width */
257 char state; /* focus, redraw, visible */
270 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
271 signed char appkey; /* application keypad */
272 signed char appcursor; /* application cursor */
273 signed char crlf; /* crlf mode */
281 * Selection variables:
282 * nb – normalized coordinates of the beginning of the selection
283 * ne – normalized coordinates of the end of the selection
284 * ob – original coordinates of the beginning of the selection
285 * oe – original coordinates of the end of the selection
294 struct timeval tclick1;
295 struct timeval tclick2;
308 void (*func)(const Arg *);
312 /* function definitions used in config.h */
313 static void clippaste(const Arg *);
314 static void numlock(const Arg *);
315 static void selpaste(const Arg *);
316 static void xzoom(const Arg *);
317 static void printsel(const Arg *);
318 static void printscreen(const Arg *) ;
319 static void toggleprinter(const Arg *);
321 /* Config.h for applying patches and the configuration. */
337 /* Drawing Context */
339 Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
340 Font font, bfont, ifont, ibfont;
344 static void die(const char *, ...);
345 static void draw(void);
346 static void redraw(int);
347 static void drawregion(int, int, int, int);
348 static void execsh(void);
349 static void sigchld(int);
350 static void run(void);
352 static void csidump(void);
353 static void csihandle(void);
354 static void csiparse(void);
355 static void csireset(void);
356 static void strdump(void);
357 static void strhandle(void);
358 static void strparse(void);
359 static void strreset(void);
361 static int tattrset(int);
362 static void tprinter(char *s, size_t len);
363 static void tdumpsel(void);
364 static void tdumpline(int);
365 static void tdump(void);
366 static void tclearregion(int, int, int, int);
367 static void tcursor(int);
368 static void tdeletechar(int);
369 static void tdeleteline(int);
370 static void tinsertblank(int);
371 static void tinsertblankline(int);
372 static void tmoveto(int, int);
373 static void tmoveato(int x, int y);
374 static void tnew(int, int);
375 static void tnewline(int);
376 static void tputtab(bool);
377 static void tputc(char *, int);
378 static void treset(void);
379 static int tresize(int, int);
380 static void tscrollup(int, int);
381 static void tscrolldown(int, int);
382 static void tsetattr(int*, int);
383 static void tsetchar(char *, Glyph *, int, int);
384 static void tsetscroll(int, int);
385 static void tswapscreen(void);
386 static void tsetdirt(int, int);
387 static void tsetdirtattr(int);
388 static void tsetmode(bool, bool, int *, int);
389 static void tfulldirt(void);
390 static void techo(char *, int);
391 static int32_t tdefcolor(int *, int *, int);
392 static void tselcs(void);
393 static void tdeftran(char);
394 static inline bool match(uint, uint);
395 static void ttynew(void);
396 static void ttyread(void);
397 static void ttyresize(void);
398 static void ttysend(char *, size_t);
399 static void ttywrite(const char *, size_t);
401 static void xdraws(char *, Glyph, int, int, int, int);
402 static void xhints(void);
403 static void xclear(int, int, int, int);
404 static void xdrawcursor(void);
405 static void xinit(void);
406 static void xloadcols(void);
407 static int xsetcolorname(int, const char *);
408 static int xloadfont(Font *, FcPattern *);
409 static void xloadfonts(char *, double);
410 static int xloadfontset(Font *);
411 static void xsettitle(char *);
412 static void xresettitle(void);
413 static void xsetpointermotion(int);
414 static void xseturgency(int);
415 static void xsetsel(char*);
416 static void xtermclear(int, int, int, int);
417 static void xunloadfont(Font *f);
418 static void xunloadfonts(void);
419 static void xresize(int, int);
421 static void expose(XEvent *);
422 static void visibility(XEvent *);
423 static void unmap(XEvent *);
424 static char *kmap(KeySym, uint);
425 static void kpress(XEvent *);
426 static void cmessage(XEvent *);
427 static void cresize(int, int);
428 static void resize(XEvent *);
429 static void focus(XEvent *);
430 static void brelease(XEvent *);
431 static void bpress(XEvent *);
432 static void bmotion(XEvent *);
433 static void selnotify(XEvent *);
434 static void selclear(XEvent *);
435 static void selrequest(XEvent *);
437 static void selinit(void);
438 static void selsort(void);
439 static inline bool selected(int, int);
440 static char *getsel(void);
441 static void selcopy(void);
442 static void selscroll(int, int);
443 static void selsnap(int, int *, int *, int);
445 static int utf8decode(char *, long *);
446 static int utf8encode(long *, char *);
447 static int utf8size(char *);
448 static int isfullutf8(char *, int);
450 static ssize_t xwrite(int, char *, size_t);
451 static void *xmalloc(size_t);
452 static void *xrealloc(void *, size_t);
453 static char *xstrdup(char *s);
455 static void (*handler[LASTEvent])(XEvent *) = {
457 [ClientMessage] = cmessage,
458 [ConfigureNotify] = resize,
459 [VisibilityNotify] = visibility,
460 [UnmapNotify] = unmap,
464 [MotionNotify] = bmotion,
465 [ButtonPress] = bpress,
466 [ButtonRelease] = brelease,
467 [SelectionClear] = selclear,
468 [SelectionNotify] = selnotify,
469 [SelectionRequest] = selrequest,
476 static CSIEscape csiescseq;
477 static STREscape strescseq;
480 static Selection sel;
481 static int iofd = STDOUT_FILENO;
482 static char **opt_cmd = NULL;
483 static char *opt_io = NULL;
484 static char *opt_title = NULL;
485 static char *opt_embed = NULL;
486 static char *opt_class = NULL;
487 static char *opt_font = NULL;
488 static int oldbutton = 3; /* button event on startup: 3 = release */
490 static char *usedfont = NULL;
491 static double usedfontsize = 0;
493 /* Font Ring Cache */
506 /* Fontcache is an array now. A new font will be appended to the array. */
507 static Fontcache frc[16];
508 static int frclen = 0;
511 xwrite(int fd, char *s, size_t len) {
515 ssize_t r = write(fd, s, len);
525 xmalloc(size_t len) {
526 void *p = malloc(len);
529 die("Out of memory\n");
535 xrealloc(void *p, size_t len) {
536 if((p = realloc(p, len)) == NULL)
537 die("Out of memory\n");
547 die("Out of memory\n");
553 utf8decode(char *s, long *u) {
559 if(~c & 0x80) { /* 0xxxxxxx */
562 } else if((c & 0xE0) == 0xC0) { /* 110xxxxx */
565 } else if((c & 0xF0) == 0xE0) { /* 1110xxxx */
568 } else if((c & 0xF8) == 0xF0) { /* 11110xxx */
575 for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
577 if((c & 0xC0) != 0x80) /* 10xxxxxx */
583 if((n == 1 && *u < 0x80) ||
584 (n == 2 && *u < 0x800) ||
585 (n == 3 && *u < 0x10000) ||
586 (*u >= 0xD800 && *u <= 0xDFFF)) {
598 utf8encode(long *u, char *s) {
606 *sp = uc; /* 0xxxxxxx */
608 } else if(*u < 0x800) {
609 *sp = (uc >> 6) | 0xC0; /* 110xxxxx */
611 } else if(uc < 0x10000) {
612 *sp = (uc >> 12) | 0xE0; /* 1110xxxx */
614 } else if(uc <= 0x10FFFF) {
615 *sp = (uc >> 18) | 0xF0; /* 11110xxx */
621 for(i=n,++sp; i>0; --i,++sp)
622 *sp = ((uc >> 6*(i-1)) & 0x3F) | 0x80; /* 10xxxxxx */
634 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
635 UTF-8 otherwise return 0 */
637 isfullutf8(char *s, int b) {
645 } else if((*c1 & 0xE0) == 0xC0 && b == 1) {
647 } else if((*c1 & 0xF0) == 0xE0 &&
649 ((b == 2) && (*c2 & 0xC0) == 0x80))) {
651 } else if((*c1 & 0xF8) == 0xF0 &&
653 ((b == 2) && (*c2 & 0xC0) == 0x80) ||
654 ((b == 3) && (*c2 & 0xC0) == 0x80 && (*c3 & 0xC0) == 0x80))) {
667 } else if((c & 0xE0) == 0xC0) {
669 } else if((c & 0xF0) == 0xE0) {
678 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
679 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
683 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
684 if(sel.xtarget == None)
685 sel.xtarget = XA_STRING;
693 return LIMIT(x, 0, term.col-1);
701 return LIMIT(y, 0, term.row-1);
706 if(sel.ob.y == sel.oe.y) {
707 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
708 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
710 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
711 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
713 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
714 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
718 selected(int x, int y) {
719 if(sel.ne.y == y && sel.nb.y == y)
720 return BETWEEN(x, sel.nb.x, sel.ne.x);
722 if(sel.type == SEL_RECTANGULAR) {
723 return ((sel.nb.y <= y && y <= sel.ne.y)
724 && (sel.nb.x <= x && x <= sel.ne.x));
727 return ((sel.nb.y < y && y < sel.ne.y)
728 || (y == sel.ne.y && x <= sel.ne.x))
729 || (y == sel.nb.y && x >= sel.nb.x
730 && (x <= sel.ne.x || sel.nb.y != sel.ne.y));
734 selsnap(int mode, int *x, int *y, int direction) {
740 * Snap around if the word wraps around at the end or
741 * beginning of a line.
744 if(direction < 0 && *x <= 0) {
745 if(*y > 0 && term.line[*y - 1][term.col-1].mode
753 if(direction > 0 && *x >= term.col-1) {
754 if(*y < term.row-1 && term.line[*y][*x].mode
763 if(term.line[*y][*x+direction].mode & ATTR_WDUMMY) {
768 if(strchr(worddelimiters,
769 term.line[*y][*x+direction].c[0])) {
778 * Snap around if the the previous line or the current one
779 * has set ATTR_WRAP at its end. Then the whole next or
780 * previous line will be selected.
782 *x = (direction < 0) ? 0 : term.col - 1;
783 if(direction < 0 && *y > 0) {
784 for(; *y > 0; *y += direction) {
785 if(!(term.line[*y-1][term.col-1].mode
790 } else if(direction > 0 && *y < term.row-1) {
791 for(; *y < term.row; *y += direction) {
792 if(!(term.line[*y][term.col-1].mode
801 * Select the whole line when the end of line is reached.
805 while(--i > 0 && term.line[*y][i].c[0] == ' ')
815 getbuttoninfo(XEvent *e) {
817 uint state = e->xbutton.state &~Button1Mask;
819 sel.alt = IS_SET(MODE_ALTSCREEN);
821 sel.oe.x = x2col(e->xbutton.x);
822 sel.oe.y = y2row(e->xbutton.y);
824 if(sel.ob.y < sel.oe.y
825 || (sel.ob.y == sel.oe.y && sel.ob.x < sel.oe.x)) {
826 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
827 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
829 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
830 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
834 sel.type = SEL_REGULAR;
835 for(type = 1; type < LEN(selmasks); ++type) {
836 if(match(selmasks[type], state)) {
844 mousereport(XEvent *e) {
845 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
846 button = e->xbutton.button, state = e->xbutton.state,
852 if(e->xbutton.type == MotionNotify) {
853 if(x == ox && y == oy)
855 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
857 /* MOUSE_MOTION: no reporting if no button is pressed */
858 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
861 button = oldbutton + 32;
865 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
872 if(e->xbutton.type == ButtonPress) {
876 } else if(e->xbutton.type == ButtonRelease) {
878 /* MODE_MOUSEX10: no button release reporting */
879 if(IS_SET(MODE_MOUSEX10))
884 if(!IS_SET(MODE_MOUSEX10)) {
885 button += (state & ShiftMask ? 4 : 0)
886 + (state & Mod4Mask ? 8 : 0)
887 + (state & ControlMask ? 16 : 0);
891 if(IS_SET(MODE_MOUSESGR)) {
892 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
894 e->xbutton.type == ButtonRelease ? 'm' : 'M');
895 } else if(x < 223 && y < 223) {
896 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
897 32+button, 32+x+1, 32+y+1);
910 if(IS_SET(MODE_MOUSE)) {
915 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
916 if(e->xbutton.button == mk->b
917 && match(mk->mask, e->xbutton.state)) {
918 ttysend(mk->s, strlen(mk->s));
923 if(e->xbutton.button == Button1) {
924 gettimeofday(&now, NULL);
926 /* Clear previous selection, logically and visually. */
929 sel.type = SEL_REGULAR;
930 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
931 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
934 * If the user clicks below predefined timeouts specific
935 * snapping behaviour is exposed.
937 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
938 sel.snap = SNAP_LINE;
939 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
940 sel.snap = SNAP_WORD;
944 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
945 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
949 * Draw selection, unless it's regular and we don't want to
950 * make clicks visible
954 tsetdirt(sel.nb.y, sel.ne.y);
956 sel.tclick2 = sel.tclick1;
964 int x, y, bufsize, size, i, ex;
970 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
971 ptr = str = xmalloc(bufsize);
973 /* append every set & selected glyph to the selection */
974 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
975 gp = &term.line[y][0];
976 last = &gp[term.col-1];
978 while(last >= gp && !(selected(last - gp, y) &&
979 strcmp(last->c, " ") != 0)) {
983 for(x = 0; gp <= last; x++, ++gp) {
984 if(!selected(x, y) || (gp->mode & ATTR_WDUMMY))
987 size = utf8size(gp->c);
988 memcpy(ptr, gp->c, size);
993 * Copy and pasting of line endings is inconsistent
994 * in the inconsistent terminal and GUI world.
995 * The best solution seems like to produce '\n' when
996 * something is copied from st and convert '\n' to
997 * '\r', when something to be pasted is received by
999 * FIXME: Fix the computer world.
1001 if(y < sel.ne.y && x > 0 && !((gp-1)->mode & ATTR_WRAP))
1005 * If the last selected line expands in the selection
1006 * after the visible text '\n' is appended.
1010 while(--i > 0 && term.line[y][i].c[0] == ' ')
1013 if(sel.nb.y == sel.ne.y && sel.ne.x < sel.nb.x)
1030 selnotify(XEvent *e) {
1031 ulong nitems, ofs, rem;
1033 uchar *data, *last, *repl;
1038 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
1039 False, AnyPropertyType, &type, &format,
1040 &nitems, &rem, &data)) {
1041 fprintf(stderr, "Clipboard allocation failed\n");
1046 * As seen in selcopy:
1047 * Line endings are inconsistent in the terminal and GUI world
1048 * copy and pasting. When receiving some selection data,
1049 * replace all '\n' with '\r'.
1050 * FIXME: Fix the computer world.
1053 last = data + nitems * format / 8;
1054 while((repl = memchr(repl, '\n', last - repl))) {
1058 if(IS_SET(MODE_BRCKTPASTE))
1059 ttywrite("\033[200~", 6);
1060 ttysend((char *)data, nitems * format / 8);
1061 if(IS_SET(MODE_BRCKTPASTE))
1062 ttywrite("\033[201~", 6);
1064 /* number of 32-bit chunks returned */
1065 ofs += nitems * format / 32;
1070 selpaste(const Arg *dummy) {
1071 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1072 xw.win, CurrentTime);
1076 clippaste(const Arg *dummy) {
1079 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1080 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
1081 xw.win, CurrentTime);
1085 selclear(XEvent *e) {
1089 tsetdirt(sel.nb.y, sel.ne.y);
1093 selrequest(XEvent *e) {
1094 XSelectionRequestEvent *xsre;
1095 XSelectionEvent xev;
1096 Atom xa_targets, string;
1098 xsre = (XSelectionRequestEvent *) e;
1099 xev.type = SelectionNotify;
1100 xev.requestor = xsre->requestor;
1101 xev.selection = xsre->selection;
1102 xev.target = xsre->target;
1103 xev.time = xsre->time;
1105 xev.property = None;
1107 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1108 if(xsre->target == xa_targets) {
1109 /* respond with the supported type */
1110 string = sel.xtarget;
1111 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1112 XA_ATOM, 32, PropModeReplace,
1113 (uchar *) &string, 1);
1114 xev.property = xsre->property;
1115 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
1116 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1117 xsre->target, 8, PropModeReplace,
1118 (uchar *) sel.clip, strlen(sel.clip));
1119 xev.property = xsre->property;
1122 /* all done, send a notification to the listener */
1123 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1124 fprintf(stderr, "Error sending SelectionNotify event\n");
1128 xsetsel(char *str) {
1129 /* register the selection for both the clipboard and the primary */
1135 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1137 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1138 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1142 brelease(XEvent *e) {
1143 if(IS_SET(MODE_MOUSE)) {
1148 if(e->xbutton.button == Button2) {
1150 } else if(e->xbutton.button == Button1) {
1158 tsetdirt(sel.nb.y, sel.ne.y);
1163 bmotion(XEvent *e) {
1164 int oldey, oldex, oldsby, oldsey;
1166 if(IS_SET(MODE_MOUSE)) {
1181 if(oldey != sel.oe.y || oldex != sel.oe.x)
1182 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1186 die(const char *errstr, ...) {
1189 va_start(ap, errstr);
1190 vfprintf(stderr, errstr, ap);
1198 char *envshell = getenv("SHELL");
1199 const struct passwd *pass = getpwuid(getuid());
1200 char buf[sizeof(long) * 8 + 1];
1202 unsetenv("COLUMNS");
1204 unsetenv("TERMCAP");
1207 setenv("LOGNAME", pass->pw_name, 1);
1208 setenv("USER", pass->pw_name, 1);
1209 setenv("SHELL", pass->pw_shell, 0);
1210 setenv("HOME", pass->pw_dir, 0);
1213 snprintf(buf, sizeof(buf), "%lu", xw.win);
1214 setenv("WINDOWID", buf, 1);
1216 signal(SIGCHLD, SIG_DFL);
1217 signal(SIGHUP, SIG_DFL);
1218 signal(SIGINT, SIG_DFL);
1219 signal(SIGQUIT, SIG_DFL);
1220 signal(SIGTERM, SIG_DFL);
1221 signal(SIGALRM, SIG_DFL);
1223 DEFAULT(envshell, shell);
1224 setenv("TERM", termname, 1);
1225 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
1226 execvp(args[0], args);
1234 if(waitpid(pid, &stat, 0) < 0)
1235 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
1237 if(WIFEXITED(stat)) {
1238 exit(WEXITSTATUS(stat));
1247 struct winsize w = {term.row, term.col, 0, 0};
1249 /* seems to work fine on linux, openbsd and freebsd */
1250 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1251 die("openpty failed: %s\n", SERRNO);
1253 switch(pid = fork()) {
1255 die("fork failed\n");
1258 setsid(); /* create a new process group */
1259 dup2(s, STDIN_FILENO);
1260 dup2(s, STDOUT_FILENO);
1261 dup2(s, STDERR_FILENO);
1262 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1263 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
1271 signal(SIGCHLD, sigchld);
1273 term.mode |= MODE_PRINT;
1274 iofd = (!strcmp(opt_io, "-")) ?
1276 open(opt_io, O_WRONLY | O_CREAT, 0666);
1278 fprintf(stderr, "Error opening %s:%s\n",
1279 opt_io, strerror(errno));
1289 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
1291 fprintf(stderr, "\n");
1296 static char buf[BUFSIZ];
1297 static int buflen = 0;
1300 int charsize; /* size of utf8 char in bytes */
1304 /* append read bytes to unprocessed bytes */
1305 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1306 die("Couldn't read from shell: %s\n", SERRNO);
1308 /* process every complete utf8 char */
1311 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
1312 charsize = utf8decode(ptr, &utf8c);
1313 utf8encode(&utf8c, s);
1319 /* keep any uncomplete utf8 char for the next call */
1320 memmove(buf, ptr, buflen);
1324 ttywrite(const char *s, size_t n) {
1325 if(write(cmdfd, s, n) == -1)
1326 die("write error on tty: %s\n", SERRNO);
1330 ttysend(char *s, size_t n) {
1332 if(IS_SET(MODE_ECHO))
1340 w.ws_row = term.row;
1341 w.ws_col = term.col;
1342 w.ws_xpixel = xw.tw;
1343 w.ws_ypixel = xw.th;
1344 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1345 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
1349 tattrset(int attr) {
1352 for(i = 0; i < term.row-1; i++) {
1353 for(j = 0; j < term.col-1; j++) {
1354 if(term.line[i][j].mode & attr)
1363 tsetdirt(int top, int bot) {
1366 LIMIT(top, 0, term.row-1);
1367 LIMIT(bot, 0, term.row-1);
1369 for(i = top; i <= bot; i++)
1374 tsetdirtattr(int attr) {
1377 for(i = 0; i < term.row-1; i++) {
1378 for(j = 0; j < term.col-1; j++) {
1379 if(term.line[i][j].mode & attr) {
1389 tsetdirt(0, term.row-1);
1394 static TCursor c[2];
1395 bool alt = IS_SET(MODE_ALTSCREEN);
1397 if(mode == CURSOR_SAVE) {
1399 } else if(mode == CURSOR_LOAD) {
1401 tmoveto(c[alt].x, c[alt].y);
1409 term.c = (TCursor){{
1413 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1415 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1416 for(i = tabspaces; i < term.col; i += tabspaces)
1419 term.bot = term.row - 1;
1420 term.mode = MODE_WRAP;
1421 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1424 tclearregion(0, 0, term.col-1, term.row-1);
1426 tcursor(CURSOR_SAVE);
1430 tnew(int col, int row) {
1431 term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
1440 Line *tmp = term.line;
1442 term.line = term.alt;
1444 term.mode ^= MODE_ALTSCREEN;
1449 tscrolldown(int orig, int n) {
1453 LIMIT(n, 0, term.bot-orig+1);
1455 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1457 for(i = term.bot; i >= orig+n; i--) {
1458 temp = term.line[i];
1459 term.line[i] = term.line[i-n];
1460 term.line[i-n] = temp;
1463 term.dirty[i-n] = 1;
1470 tscrollup(int orig, int n) {
1473 LIMIT(n, 0, term.bot-orig+1);
1475 tclearregion(0, orig, term.col-1, orig+n-1);
1477 for(i = orig; i <= term.bot-n; i++) {
1478 temp = term.line[i];
1479 term.line[i] = term.line[i+n];
1480 term.line[i+n] = temp;
1483 term.dirty[i+n] = 1;
1486 selscroll(orig, -n);
1490 selscroll(int orig, int n) {
1494 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1495 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1499 if(sel.type == SEL_RECTANGULAR) {
1500 if(sel.ob.y < term.top)
1501 sel.ob.y = term.top;
1502 if(sel.oe.y > term.bot)
1503 sel.oe.y = term.bot;
1505 if(sel.ob.y < term.top) {
1506 sel.ob.y = term.top;
1509 if(sel.oe.y > term.bot) {
1510 sel.oe.y = term.bot;
1511 sel.oe.x = term.col;
1519 tnewline(int first_col) {
1523 tscrollup(term.top, 1);
1527 tmoveto(first_col ? 0 : term.c.x, y);
1532 char *p = csiescseq.buf, *np;
1541 csiescseq.buf[csiescseq.len] = '\0';
1542 while(p < csiescseq.buf+csiescseq.len) {
1544 v = strtol(p, &np, 10);
1547 if(v == LONG_MAX || v == LONG_MIN)
1549 csiescseq.arg[csiescseq.narg++] = v;
1551 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1555 csiescseq.mode = *p;
1558 /* for absolute user moves, when decom is set */
1560 tmoveato(int x, int y) {
1561 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1565 tmoveto(int x, int y) {
1568 if(term.c.state & CURSOR_ORIGIN) {
1573 maxy = term.row - 1;
1575 LIMIT(x, 0, term.col-1);
1576 LIMIT(y, miny, maxy);
1577 term.c.state &= ~CURSOR_WRAPNEXT;
1583 tsetchar(char *c, Glyph *attr, int x, int y) {
1584 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1585 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1586 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1587 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1588 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1589 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1590 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1591 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1592 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1596 * The table is proudly stolen from rxvt.
1598 if(attr->mode & ATTR_GFX) {
1599 if(c[0] >= 0x41 && c[0] <= 0x7e
1600 && vt100_0[c[0] - 0x41]) {
1601 c = vt100_0[c[0] - 0x41];
1605 if(term.line[y][x].mode & ATTR_WIDE) {
1606 if(x+1 < term.col) {
1607 term.line[y][x+1].c[0] = ' ';
1608 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1610 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1611 term.line[y][x-1].c[0] = ' ';
1612 term.line[y][x-1].mode &= ~ATTR_WIDE;
1616 term.line[y][x] = *attr;
1617 memcpy(term.line[y][x].c, c, UTF_SIZ);
1621 tclearregion(int x1, int y1, int x2, int y2) {
1625 temp = x1, x1 = x2, x2 = temp;
1627 temp = y1, y1 = y2, y2 = temp;
1629 LIMIT(x1, 0, term.col-1);
1630 LIMIT(x2, 0, term.col-1);
1631 LIMIT(y1, 0, term.row-1);
1632 LIMIT(y2, 0, term.row-1);
1634 for(y = y1; y <= y2; y++) {
1636 for(x = x1; x <= x2; x++) {
1639 term.line[y][x] = term.c.attr;
1640 memcpy(term.line[y][x].c, " ", 2);
1646 tdeletechar(int n) {
1647 int src = term.c.x + n;
1649 int size = term.col - src;
1651 term.dirty[term.c.y] = 1;
1653 if(src >= term.col) {
1654 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1658 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1659 size * sizeof(Glyph));
1660 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1664 tinsertblank(int n) {
1667 int size = term.col - dst;
1669 term.dirty[term.c.y] = 1;
1671 if(dst >= term.col) {
1672 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1676 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1677 size * sizeof(Glyph));
1678 tclearregion(src, term.c.y, dst - 1, term.c.y);
1682 tinsertblankline(int n) {
1683 if(term.c.y < term.top || term.c.y > term.bot)
1686 tscrolldown(term.c.y, n);
1690 tdeleteline(int n) {
1691 if(term.c.y < term.top || term.c.y > term.bot)
1694 tscrollup(term.c.y, n);
1698 tdefcolor(int *attr, int *npar, int l) {
1702 switch (attr[*npar + 1]) {
1703 case 2: /* direct colour in RGB space */
1704 if (*npar + 4 >= l) {
1706 "erresc(38): Incorrect number of parameters (%d)\n",
1710 r = attr[*npar + 2];
1711 g = attr[*npar + 3];
1712 b = attr[*npar + 4];
1714 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1715 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1718 idx = TRUECOLOR(r, g, b);
1720 case 5: /* indexed colour */
1721 if (*npar + 2 >= l) {
1723 "erresc(38): Incorrect number of parameters (%d)\n",
1728 if(!BETWEEN(attr[*npar], 0, 255))
1729 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1733 case 0: /* implemented defined (only foreground) */
1734 case 1: /* transparent */
1735 case 3: /* direct colour in CMY space */
1736 case 4: /* direct colour in CMYK space */
1739 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1746 tsetattr(int *attr, int l) {
1750 for(i = 0; i < l; i++) {
1753 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
1754 | ATTR_BOLD | ATTR_ITALIC \
1756 term.c.attr.fg = defaultfg;
1757 term.c.attr.bg = defaultbg;
1760 term.c.attr.mode |= ATTR_BOLD;
1763 term.c.attr.mode |= ATTR_ITALIC;
1766 term.c.attr.mode |= ATTR_UNDERLINE;
1768 case 5: /* slow blink */
1769 case 6: /* rapid blink */
1770 term.c.attr.mode |= ATTR_BLINK;
1773 term.c.attr.mode |= ATTR_REVERSE;
1777 term.c.attr.mode &= ~ATTR_BOLD;
1780 term.c.attr.mode &= ~ATTR_ITALIC;
1783 term.c.attr.mode &= ~ATTR_UNDERLINE;
1787 term.c.attr.mode &= ~ATTR_BLINK;
1790 term.c.attr.mode &= ~ATTR_REVERSE;
1793 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1794 term.c.attr.fg = idx;
1797 term.c.attr.fg = defaultfg;
1800 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1801 term.c.attr.bg = idx;
1804 term.c.attr.bg = defaultbg;
1807 if(BETWEEN(attr[i], 30, 37)) {
1808 term.c.attr.fg = attr[i] - 30;
1809 } else if(BETWEEN(attr[i], 40, 47)) {
1810 term.c.attr.bg = attr[i] - 40;
1811 } else if(BETWEEN(attr[i], 90, 97)) {
1812 term.c.attr.fg = attr[i] - 90 + 8;
1813 } else if(BETWEEN(attr[i], 100, 107)) {
1814 term.c.attr.bg = attr[i] - 100 + 8;
1817 "erresc(default): gfx attr %d unknown\n",
1818 attr[i]), csidump();
1826 tsetscroll(int t, int b) {
1829 LIMIT(t, 0, term.row-1);
1830 LIMIT(b, 0, term.row-1);
1840 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
1843 tsetmode(bool priv, bool set, int *args, int narg) {
1847 for(lim = args + narg; args < lim; ++args) {
1851 case 1: /* DECCKM -- Cursor key */
1852 MODBIT(term.mode, set, MODE_APPCURSOR);
1854 case 5: /* DECSCNM -- Reverse video */
1856 MODBIT(term.mode, set, MODE_REVERSE);
1857 if(mode != term.mode)
1858 redraw(REDRAW_TIMEOUT);
1860 case 6: /* DECOM -- Origin */
1861 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1864 case 7: /* DECAWM -- Auto wrap */
1865 MODBIT(term.mode, set, MODE_WRAP);
1867 case 0: /* Error (IGNORED) */
1868 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1869 case 3: /* DECCOLM -- Column (IGNORED) */
1870 case 4: /* DECSCLM -- Scroll (IGNORED) */
1871 case 8: /* DECARM -- Auto repeat (IGNORED) */
1872 case 18: /* DECPFF -- Printer feed (IGNORED) */
1873 case 19: /* DECPEX -- Printer extent (IGNORED) */
1874 case 42: /* DECNRCM -- National characters (IGNORED) */
1875 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1877 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1878 MODBIT(term.mode, !set, MODE_HIDE);
1880 case 9: /* X10 mouse compatibility mode */
1881 xsetpointermotion(0);
1882 MODBIT(term.mode, 0, MODE_MOUSE);
1883 MODBIT(term.mode, set, MODE_MOUSEX10);
1885 case 1000: /* 1000: report button press */
1886 xsetpointermotion(0);
1887 MODBIT(term.mode, 0, MODE_MOUSE);
1888 MODBIT(term.mode, set, MODE_MOUSEBTN);
1890 case 1002: /* 1002: report motion on button press */
1891 xsetpointermotion(0);
1892 MODBIT(term.mode, 0, MODE_MOUSE);
1893 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1895 case 1003: /* 1003: enable all mouse motions */
1896 xsetpointermotion(set);
1897 MODBIT(term.mode, 0, MODE_MOUSE);
1898 MODBIT(term.mode, set, MODE_MOUSEMANY);
1900 case 1004: /* 1004: send focus events to tty */
1901 MODBIT(term.mode, set, MODE_FOCUS);
1903 case 1006: /* 1006: extended reporting mode */
1904 MODBIT(term.mode, set, MODE_MOUSESGR);
1907 MODBIT(term.mode, set, MODE_8BIT);
1909 case 1049: /* swap screen & set/restore cursor as xterm */
1910 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1911 case 47: /* swap screen */
1913 if (!allowaltscreen)
1915 alt = IS_SET(MODE_ALTSCREEN);
1917 tclearregion(0, 0, term.col-1,
1920 if(set ^ alt) /* set is always 1 or 0 */
1926 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1928 case 2004: /* 2004: bracketed paste mode */
1929 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1931 /* Not implemented mouse modes. See comments there. */
1932 case 1001: /* mouse highlight mode; can hang the
1933 terminal by design when implemented. */
1934 case 1005: /* UTF-8 mouse mode; will confuse
1935 applications not supporting UTF-8
1937 case 1015: /* urxvt mangled mouse mode; incompatible
1938 and can be mistaken for other control
1942 "erresc: unknown private set/reset mode %d\n",
1948 case 0: /* Error (IGNORED) */
1950 case 2: /* KAM -- keyboard action */
1951 MODBIT(term.mode, set, MODE_KBDLOCK);
1953 case 4: /* IRM -- Insertion-replacement */
1954 MODBIT(term.mode, set, MODE_INSERT);
1956 case 12: /* SRM -- Send/Receive */
1957 MODBIT(term.mode, !set, MODE_ECHO);
1959 case 20: /* LNM -- Linefeed/new line */
1960 MODBIT(term.mode, set, MODE_CRLF);
1964 "erresc: unknown set/reset mode %d\n",
1977 switch(csiescseq.mode) {
1980 fprintf(stderr, "erresc: unknown csi ");
1984 case '@': /* ICH -- Insert <n> blank char */
1985 DEFAULT(csiescseq.arg[0], 1);
1986 tinsertblank(csiescseq.arg[0]);
1988 case 'A': /* CUU -- Cursor <n> Up */
1989 DEFAULT(csiescseq.arg[0], 1);
1990 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1992 case 'B': /* CUD -- Cursor <n> Down */
1993 case 'e': /* VPR --Cursor <n> Down */
1994 DEFAULT(csiescseq.arg[0], 1);
1995 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1997 case 'i': /* MC -- Media Copy */
1998 switch(csiescseq.arg[0]) {
2003 tdumpline(term.c.y);
2009 term.mode &= ~MODE_PRINT;
2012 term.mode |= MODE_PRINT;
2016 case 'c': /* DA -- Device Attributes */
2017 if(csiescseq.arg[0] == 0)
2018 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2020 case 'C': /* CUF -- Cursor <n> Forward */
2021 case 'a': /* HPR -- Cursor <n> Forward */
2022 DEFAULT(csiescseq.arg[0], 1);
2023 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
2025 case 'D': /* CUB -- Cursor <n> Backward */
2026 DEFAULT(csiescseq.arg[0], 1);
2027 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
2029 case 'E': /* CNL -- Cursor <n> Down and first col */
2030 DEFAULT(csiescseq.arg[0], 1);
2031 tmoveto(0, term.c.y+csiescseq.arg[0]);
2033 case 'F': /* CPL -- Cursor <n> Up and first col */
2034 DEFAULT(csiescseq.arg[0], 1);
2035 tmoveto(0, term.c.y-csiescseq.arg[0]);
2037 case 'g': /* TBC -- Tabulation clear */
2038 switch(csiescseq.arg[0]) {
2039 case 0: /* clear current tab stop */
2040 term.tabs[term.c.x] = 0;
2042 case 3: /* clear all the tabs */
2043 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
2049 case 'G': /* CHA -- Move to <col> */
2051 DEFAULT(csiescseq.arg[0], 1);
2052 tmoveto(csiescseq.arg[0]-1, term.c.y);
2054 case 'H': /* CUP -- Move to <row> <col> */
2056 DEFAULT(csiescseq.arg[0], 1);
2057 DEFAULT(csiescseq.arg[1], 1);
2058 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
2060 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
2061 DEFAULT(csiescseq.arg[0], 1);
2062 while(csiescseq.arg[0]--)
2065 case 'J': /* ED -- Clear screen */
2067 switch(csiescseq.arg[0]) {
2069 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2070 if(term.c.y < term.row-1) {
2071 tclearregion(0, term.c.y+1, term.col-1,
2077 tclearregion(0, 0, term.col-1, term.c.y-1);
2078 tclearregion(0, term.c.y, term.c.x, term.c.y);
2081 tclearregion(0, 0, term.col-1, term.row-1);
2087 case 'K': /* EL -- Clear line */
2088 switch(csiescseq.arg[0]) {
2090 tclearregion(term.c.x, term.c.y, term.col-1,
2094 tclearregion(0, term.c.y, term.c.x, term.c.y);
2097 tclearregion(0, term.c.y, term.col-1, term.c.y);
2101 case 'S': /* SU -- Scroll <n> line up */
2102 DEFAULT(csiescseq.arg[0], 1);
2103 tscrollup(term.top, csiescseq.arg[0]);
2105 case 'T': /* SD -- Scroll <n> line down */
2106 DEFAULT(csiescseq.arg[0], 1);
2107 tscrolldown(term.top, csiescseq.arg[0]);
2109 case 'L': /* IL -- Insert <n> blank lines */
2110 DEFAULT(csiescseq.arg[0], 1);
2111 tinsertblankline(csiescseq.arg[0]);
2113 case 'l': /* RM -- Reset Mode */
2114 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2116 case 'M': /* DL -- Delete <n> lines */
2117 DEFAULT(csiescseq.arg[0], 1);
2118 tdeleteline(csiescseq.arg[0]);
2120 case 'X': /* ECH -- Erase <n> char */
2121 DEFAULT(csiescseq.arg[0], 1);
2122 tclearregion(term.c.x, term.c.y,
2123 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2125 case 'P': /* DCH -- Delete <n> char */
2126 DEFAULT(csiescseq.arg[0], 1);
2127 tdeletechar(csiescseq.arg[0]);
2129 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2130 DEFAULT(csiescseq.arg[0], 1);
2131 while(csiescseq.arg[0]--)
2134 case 'd': /* VPA -- Move to <row> */
2135 DEFAULT(csiescseq.arg[0], 1);
2136 tmoveato(term.c.x, csiescseq.arg[0]-1);
2138 case 'h': /* SM -- Set terminal mode */
2139 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2141 case 'm': /* SGR -- Terminal attribute (color) */
2142 tsetattr(csiescseq.arg, csiescseq.narg);
2144 case 'n': /* DSR – Device Status Report (cursor position) */
2145 if (csiescseq.arg[0] == 6) {
2146 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2147 term.c.y+1, term.c.x+1);
2151 case 'r': /* DECSTBM -- Set Scrolling Region */
2152 if(csiescseq.priv) {
2155 DEFAULT(csiescseq.arg[0], 1);
2156 DEFAULT(csiescseq.arg[1], term.row);
2157 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2161 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2162 tcursor(CURSOR_SAVE);
2164 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2165 tcursor(CURSOR_LOAD);
2176 for(i = 0; i < csiescseq.len; i++) {
2177 c = csiescseq.buf[i] & 0xff;
2180 } else if(c == '\n') {
2182 } else if(c == '\r') {
2184 } else if(c == 0x1b) {
2187 printf("(%02x)", c);
2195 memset(&csiescseq, 0, sizeof(csiescseq));
2204 narg = strescseq.narg;
2205 par = atoi(strescseq.args[0]);
2207 switch(strescseq.type) {
2208 case ']': /* OSC -- Operating System Command */
2214 xsettitle(strescseq.args[1]);
2216 case 4: /* color set */
2219 p = strescseq.args[2];
2221 case 104: /* color reset, here p = NULL */
2222 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2223 if (!xsetcolorname(j, p)) {
2224 fprintf(stderr, "erresc: invalid color %s\n", p);
2227 * TODO if defaultbg color is changed, borders
2235 case 'k': /* old title set compatibility */
2236 xsettitle(strescseq.args[0]);
2238 case 'P': /* DSC -- Device Control String */
2239 case '_': /* APC -- Application Program Command */
2240 case '^': /* PM -- Privacy Message */
2244 fprintf(stderr, "erresc: unknown str ");
2250 char *p = strescseq.buf;
2253 strescseq.buf[strescseq.len] = '\0';
2254 while(p && strescseq.narg < STR_ARG_SIZ)
2255 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2263 printf("ESC%c", strescseq.type);
2264 for(i = 0; i < strescseq.len; i++) {
2265 c = strescseq.buf[i] & 0xff;
2268 } else if(isprint(c)) {
2270 } else if(c == '\n') {
2272 } else if(c == '\r') {
2274 } else if(c == 0x1b) {
2277 printf("(%02x)", c);
2285 memset(&strescseq, 0, sizeof(strescseq));
2289 tprinter(char *s, size_t len) {
2290 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2291 fprintf(stderr, "Error writing in %s:%s\n",
2292 opt_io, strerror(errno));
2299 toggleprinter(const Arg *arg) {
2300 term.mode ^= MODE_PRINT;
2304 printscreen(const Arg *arg) {
2309 printsel(const Arg *arg) {
2319 tprinter(ptr, strlen(ptr));
2327 bp = &term.line[n][0];
2328 end = &bp[term.col-1];
2329 while(end > bp && !strcmp(" ", end->c))
2331 if(bp != end || strcmp(bp->c, " ")) {
2332 for( ;bp <= end; ++bp)
2333 tprinter(bp->c, strlen(bp->c));
2342 for(i = 0; i < term.row; ++i)
2347 tputtab(bool forward) {
2353 for(++x; x < term.col && !term.tabs[x]; ++x)
2358 for(--x; x > 0 && !term.tabs[x]; --x)
2361 tmoveto(x, term.c.y);
2365 techo(char *buf, int len) {
2366 for(; len > 0; buf++, len--) {
2369 if(c == '\033') { /* escape */
2372 } else if(c < '\x20') { /* control code */
2373 if(c != '\n' && c != '\r' && c != '\t') {
2387 tdeftran(char ascii) {
2389 static char tbl[][2] = {
2390 {'0', CS_GRAPHIC0}, {'1', CS_GRAPHIC1}, {'A', CS_UK},
2391 {'B', CS_USA}, {'<', CS_MULTI}, {'K', CS_GER},
2392 {'5', CS_FIN}, {'C', CS_FIN},
2396 for (bp = &tbl[0]; (c = (*bp)[0]) && c != ascii; ++bp)
2400 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2402 term.trantbl[term.icharset] = (*bp)[1];
2407 if (term.trantbl[term.charset] == CS_GRAPHIC0)
2408 term.c.attr.mode |= ATTR_GFX;
2410 term.c.attr.mode &= ~ATTR_GFX;
2414 tputc(char *c, int len) {
2416 bool control = ascii < '\x20' || ascii == 0177;
2423 utf8decode(c, &u8char);
2424 width = wcwidth(u8char);
2427 if(IS_SET(MODE_PRINT))
2431 * STR sequences must be checked before anything else
2432 * because it can use some control codes as part of the sequence.
2434 if(term.esc & ESC_STR) {
2437 term.esc = ESC_START | ESC_STR_END;
2439 case '\a': /* backwards compatibility to xterm */
2444 if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2445 memmove(&strescseq.buf[strescseq.len], c, len);
2446 strescseq.len += len;
2449 * Here is a bug in terminals. If the user never sends
2450 * some code to stop the str or esc command, then st
2451 * will stop responding. But this is better than
2452 * silently failing with unknown characters. At least
2453 * then users will report back.
2455 * In the case users ever get fixed, here is the code:
2467 * Actions of control codes must be performed as soon they arrive
2468 * because they can be embedded inside a control sequence, and
2469 * they must not cause conflicts with sequences.
2477 tmoveto(term.c.x-1, term.c.y);
2480 tmoveto(0, term.c.y);
2485 /* go to first col if the mode is set */
2486 tnewline(IS_SET(MODE_CRLF));
2488 case '\a': /* BEL */
2489 if(!(xw.state & WIN_FOCUSED))
2492 XBell(xw.dpy, bellvolume);
2494 case '\033': /* ESC */
2496 term.esc = ESC_START;
2498 case '\016': /* SO */
2502 case '\017': /* SI */
2506 case '\032': /* SUB */
2507 case '\030': /* CAN */
2510 case '\005': /* ENQ (IGNORED) */
2511 case '\000': /* NUL (IGNORED) */
2512 case '\021': /* XON (IGNORED) */
2513 case '\023': /* XOFF (IGNORED) */
2514 case 0177: /* DEL (IGNORED) */
2517 } else if(term.esc & ESC_START) {
2518 if(term.esc & ESC_CSI) {
2519 csiescseq.buf[csiescseq.len++] = ascii;
2520 if(BETWEEN(ascii, 0x40, 0x7E)
2521 || csiescseq.len >= \
2522 sizeof(csiescseq.buf)-1) {
2527 } else if(term.esc & ESC_STR_END) {
2531 } else if(term.esc & ESC_ALTCHARSET) {
2535 } else if(term.esc & ESC_TEST) {
2536 if(ascii == '8') { /* DEC screen alignment test. */
2537 char E[UTF_SIZ] = "E";
2540 for(x = 0; x < term.col; ++x) {
2541 for(y = 0; y < term.row; ++y)
2542 tsetchar(E, &term.c.attr, x, y);
2549 term.esc |= ESC_CSI;
2552 term.esc |= ESC_TEST;
2554 case 'P': /* DCS -- Device Control String */
2555 case '_': /* APC -- Application Program Command */
2556 case '^': /* PM -- Privacy Message */
2557 case ']': /* OSC -- Operating System Command */
2558 case 'k': /* old title set compatibility */
2560 strescseq.type = ascii;
2561 term.esc |= ESC_STR;
2563 case '(': /* set primary charset G0 */
2564 case ')': /* set secondary charset G1 */
2565 case '*': /* set tertiary charset G2 */
2566 case '+': /* set quaternary charset G3 */
2567 term.icharset = ascii - '(';
2568 term.esc |= ESC_ALTCHARSET;
2570 case 'D': /* IND -- Linefeed */
2571 if(term.c.y == term.bot) {
2572 tscrollup(term.top, 1);
2574 tmoveto(term.c.x, term.c.y+1);
2578 case 'E': /* NEL -- Next line */
2579 tnewline(1); /* always go to first col */
2582 case 'H': /* HTS -- Horizontal tab stop */
2583 term.tabs[term.c.x] = 1;
2586 case 'M': /* RI -- Reverse index */
2587 if(term.c.y == term.top) {
2588 tscrolldown(term.top, 1);
2590 tmoveto(term.c.x, term.c.y-1);
2594 case 'Z': /* DECID -- Identify Terminal */
2595 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2598 case 'c': /* RIS -- Reset to inital state */
2604 case '=': /* DECPAM -- Application keypad */
2605 term.mode |= MODE_APPKEYPAD;
2608 case '>': /* DECPNM -- Normal keypad */
2609 term.mode &= ~MODE_APPKEYPAD;
2612 case '7': /* DECSC -- Save Cursor */
2613 tcursor(CURSOR_SAVE);
2616 case '8': /* DECRC -- Restore Cursor */
2617 tcursor(CURSOR_LOAD);
2620 case '\\': /* ST -- Stop */
2624 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2625 (uchar) ascii, isprint(ascii)? ascii:'.');
2630 * All characters which form part of a sequence are not
2636 * Display control codes only if we are in graphic mode
2638 if(control && !(term.c.attr.mode & ATTR_GFX))
2640 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2642 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2643 term.line[term.c.y][term.c.x].mode |= ATTR_WRAP;
2647 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
2648 memmove(&term.line[term.c.y][term.c.x+1],
2649 &term.line[term.c.y][term.c.x],
2650 (term.col - term.c.x - 1) * sizeof(Glyph));
2653 if(term.c.x+width > term.col)
2656 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2659 term.line[term.c.y][term.c.x].mode |= ATTR_WIDE;
2660 if(term.c.x+1 < term.col) {
2661 term.line[term.c.y][term.c.x+1].c[0] = '\0';
2662 term.line[term.c.y][term.c.x+1].mode = ATTR_WDUMMY;
2665 if(term.c.x+width < term.col) {
2666 tmoveto(term.c.x+width, term.c.y);
2668 term.c.state |= CURSOR_WRAPNEXT;
2673 tresize(int col, int row) {
2675 int minrow = MIN(row, term.row);
2676 int mincol = MIN(col, term.col);
2677 int slide = term.c.y - row + 1;
2681 if(col < 1 || row < 1)
2684 /* free unneeded rows */
2688 * slide screen to keep cursor where we expect it -
2689 * tscrollup would work here, but we can optimize to
2690 * memmove because we're freeing the earlier lines
2692 for(/* i = 0 */; i < slide; i++) {
2696 memmove(term.line, term.line + slide, row * sizeof(Line));
2697 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2699 for(i += row; i < term.row; i++) {
2704 /* resize to new height */
2705 term.line = xrealloc(term.line, row * sizeof(Line));
2706 term.alt = xrealloc(term.alt, row * sizeof(Line));
2707 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2708 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2710 /* resize each row to new width, zero-pad if needed */
2711 for(i = 0; i < minrow; i++) {
2713 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2714 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2717 /* allocate any new rows */
2718 for(/* i == minrow */; i < row; i++) {
2720 term.line[i] = xmalloc(col * sizeof(Glyph));
2721 term.alt[i] = xmalloc(col * sizeof(Glyph));
2723 if(col > term.col) {
2724 bp = term.tabs + term.col;
2726 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2727 while(--bp > term.tabs && !*bp)
2729 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2732 /* update terminal size */
2735 /* reset scrolling region */
2736 tsetscroll(0, row-1);
2737 /* make use of the LIMIT in tmoveto */
2738 tmoveto(term.c.x, term.c.y);
2739 /* Clearing both screens */
2742 if(mincol < col && 0 < minrow) {
2743 tclearregion(mincol, 0, col - 1, minrow - 1);
2745 if(0 < col && minrow < row) {
2746 tclearregion(0, minrow, col - 1, row - 1);
2749 } while(orig != term.line);
2755 xresize(int col, int row) {
2756 xw.tw = MAX(1, col * xw.cw);
2757 xw.th = MAX(1, row * xw.ch);
2759 XFreePixmap(xw.dpy, xw.buf);
2760 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2761 DefaultDepth(xw.dpy, xw.scr));
2762 XftDrawChange(xw.draw, xw.buf);
2763 xclear(0, 0, xw.w, xw.h);
2766 static inline ushort
2767 sixd_to_16bit(int x) {
2768 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2774 XRenderColor color = { .alpha = 0xffff };
2779 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2780 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2783 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
2784 for(i = 0; i < LEN(colorname); i++) {
2787 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2788 die("Could not allocate color '%s'\n", colorname[i]);
2792 /* load colors [16-255] ; same colors as xterm */
2793 for(i = 16, r = 0; r < 6; r++) {
2794 for(g = 0; g < 6; g++) {
2795 for(b = 0; b < 6; b++) {
2796 color.red = sixd_to_16bit(r);
2797 color.green = sixd_to_16bit(g);
2798 color.blue = sixd_to_16bit(b);
2799 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
2800 die("Could not allocate color %d\n", i);
2807 for(r = 0; r < 24; r++, i++) {
2808 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
2809 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
2811 die("Could not allocate color %d\n", i);
2818 xsetcolorname(int x, const char *name) {
2819 XRenderColor color = { .alpha = 0xffff };
2821 if (x < 0 || x > LEN(colorname))
2824 if(16 <= x && x < 16 + 216) {
2825 int r = (x - 16) / 36, g = ((x - 16) % 36) / 6, b = (x - 16) % 6;
2826 color.red = sixd_to_16bit(r);
2827 color.green = sixd_to_16bit(g);
2828 color.blue = sixd_to_16bit(b);
2829 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2830 return 0; /* something went wrong */
2833 } else if (16 + 216 <= x && x < 256) {
2834 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (x - (16 + 216));
2835 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2836 return 0; /* something went wrong */
2840 name = colorname[x];
2843 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &colour))
2850 xtermclear(int col1, int row1, int col2, int row2) {
2851 XftDrawRect(xw.draw,
2852 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2853 borderpx + col1 * xw.cw,
2854 borderpx + row1 * xw.ch,
2855 (col2-col1+1) * xw.cw,
2856 (row2-row1+1) * xw.ch);
2860 * Absolute coordinates.
2863 xclear(int x1, int y1, int x2, int y2) {
2864 XftDrawRect(xw.draw,
2865 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2866 x1, y1, x2-x1, y2-y1);
2871 XClassHint class = {opt_class ? opt_class : termname, termname};
2872 XWMHints wm = {.flags = InputHint, .input = 1};
2873 XSizeHints *sizeh = NULL;
2875 sizeh = XAllocSizeHints();
2876 if(xw.isfixed == False) {
2877 sizeh->flags = PSize | PResizeInc | PBaseSize;
2878 sizeh->height = xw.h;
2879 sizeh->width = xw.w;
2880 sizeh->height_inc = xw.ch;
2881 sizeh->width_inc = xw.cw;
2882 sizeh->base_height = 2 * borderpx;
2883 sizeh->base_width = 2 * borderpx;
2885 sizeh->flags = PMaxSize | PMinSize;
2886 sizeh->min_width = sizeh->max_width = xw.fw;
2887 sizeh->min_height = sizeh->max_height = xw.fh;
2890 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2896 xloadfont(Font *f, FcPattern *pattern) {
2900 match = FcFontMatch(NULL, pattern, &result);
2904 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2905 FcPatternDestroy(match);
2910 f->pattern = FcPatternDuplicate(pattern);
2912 f->ascent = f->match->ascent;
2913 f->descent = f->match->descent;
2915 f->rbearing = f->match->max_advance_width;
2917 f->height = f->ascent + f->descent;
2918 f->width = f->lbearing + f->rbearing;
2924 xloadfonts(char *fontstr, double fontsize) {
2926 FcResult r_sz, r_psz;
2929 if(fontstr[0] == '-') {
2930 pattern = XftXlfdParse(fontstr, False, False);
2932 pattern = FcNameParse((FcChar8 *)fontstr);
2936 die("st: can't open font %s\n", fontstr);
2939 FcPatternDel(pattern, FC_PIXEL_SIZE);
2940 FcPatternDel(pattern, FC_SIZE);
2941 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2942 usedfontsize = fontsize;
2944 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2945 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2946 if(r_psz == FcResultMatch) {
2947 usedfontsize = fontval;
2948 } else if(r_sz == FcResultMatch) {
2952 * Default font size is 12, if none given. This is to
2953 * have a known usedfontsize value.
2955 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2960 FcConfigSubstitute(0, pattern, FcMatchPattern);
2961 FcDefaultSubstitute(pattern);
2963 if(xloadfont(&dc.font, pattern))
2964 die("st: can't open font %s\n", fontstr);
2966 if(usedfontsize < 0) {
2967 FcPatternGetDouble(dc.font.match->pattern,
2968 FC_PIXEL_SIZE, 0, &fontval);
2969 usedfontsize = fontval;
2972 /* Setting character width and height. */
2973 xw.cw = CEIL(dc.font.width * cwscale);
2974 xw.ch = CEIL(dc.font.height * chscale);
2976 FcPatternDel(pattern, FC_SLANT);
2977 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2978 if(xloadfont(&dc.ifont, pattern))
2979 die("st: can't open font %s\n", fontstr);
2981 FcPatternDel(pattern, FC_WEIGHT);
2982 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2983 if(xloadfont(&dc.ibfont, pattern))
2984 die("st: can't open font %s\n", fontstr);
2986 FcPatternDel(pattern, FC_SLANT);
2987 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2988 if(xloadfont(&dc.bfont, pattern))
2989 die("st: can't open font %s\n", fontstr);
2991 FcPatternDestroy(pattern);
2995 xloadfontset(Font *f) {
2998 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
3004 xunloadfont(Font *f) {
3005 XftFontClose(xw.dpy, f->match);
3006 FcPatternDestroy(f->pattern);
3008 FcFontSetDestroy(f->set);
3012 xunloadfonts(void) {
3015 /* Free the loaded fonts in the font cache. */
3016 for(i = 0; i < frclen; i++) {
3017 XftFontClose(xw.dpy, frc[i].font);
3021 xunloadfont(&dc.font);
3022 xunloadfont(&dc.bfont);
3023 xunloadfont(&dc.ifont);
3024 xunloadfont(&dc.ibfont);
3028 xzoom(const Arg *arg) {
3030 xloadfonts(usedfont, usedfontsize + arg->i);
3041 pid_t thispid = getpid();
3043 if(!(xw.dpy = XOpenDisplay(NULL)))
3044 die("Can't open display\n");
3045 xw.scr = XDefaultScreen(xw.dpy);
3046 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3050 die("Could not init fontconfig.\n");
3052 usedfont = (opt_font == NULL)? font : opt_font;
3053 xloadfonts(usedfont, 0);
3056 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3059 /* adjust fixed window geometry */
3061 sw = DisplayWidth(xw.dpy, xw.scr);
3062 sh = DisplayHeight(xw.dpy, xw.scr);
3064 xw.fx = sw + xw.fx - xw.fw - 1;
3066 xw.fy = sh + xw.fy - xw.fh - 1;
3071 /* window - default size */
3072 xw.h = 2 * borderpx + term.row * xw.ch;
3073 xw.w = 2 * borderpx + term.col * xw.cw;
3079 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3080 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3081 xw.attrs.bit_gravity = NorthWestGravity;
3082 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3083 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3084 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3085 xw.attrs.colormap = xw.cmap;
3087 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3088 XRootWindow(xw.dpy, xw.scr);
3089 xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
3090 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3091 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3092 | CWEventMask | CWColormap, &xw.attrs);
3094 memset(&gcvalues, 0, sizeof(gcvalues));
3095 gcvalues.graphics_exposures = False;
3096 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3098 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3099 DefaultDepth(xw.dpy, xw.scr));
3100 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3101 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3103 /* Xft rendering context */
3104 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3107 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3108 XSetLocaleModifiers("@im=local");
3109 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3110 XSetLocaleModifiers("@im=");
3111 if((xw.xim = XOpenIM(xw.dpy,
3112 NULL, NULL, NULL)) == NULL) {
3113 die("XOpenIM failed. Could not open input"
3118 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3119 | XIMStatusNothing, XNClientWindow, xw.win,
3120 XNFocusWindow, xw.win, NULL);
3122 die("XCreateIC failed. Could not obtain input method.\n");
3124 /* white cursor, black outline */
3125 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3126 XDefineCursor(xw.dpy, xw.win, cursor);
3127 XRecolorCursor(xw.dpy, cursor,
3128 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3129 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3131 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3132 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3133 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3134 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3136 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3137 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3138 PropModeReplace, (unsigned char *)&thispid, 1);
3141 XMapWindow(xw.dpy, xw.win);
3147 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3148 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3149 width = charlen * xw.cw, xp, i;
3151 int u8fl, u8fblen, u8cblen, doesexist;
3154 Font *font = &dc.font;
3156 FcPattern *fcpattern, *fontpattern;
3157 FcFontSet *fcsets[] = { NULL };
3158 FcCharSet *fccharset;
3159 Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3160 XRenderColor colfg, colbg;
3164 frcflags = FRC_NORMAL;
3166 if(base.mode & ATTR_ITALIC) {
3167 if(base.fg == defaultfg)
3168 base.fg = defaultitalic;
3170 frcflags = FRC_ITALIC;
3171 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3172 if(base.fg == defaultfg)
3173 base.fg = defaultitalic;
3175 frcflags = FRC_ITALICBOLD;
3176 } else if(base.mode & ATTR_UNDERLINE) {
3177 if(base.fg == defaultfg)
3178 base.fg = defaultunderline;
3181 if(IS_TRUECOL(base.fg)) {
3182 colfg.alpha = 0xffff;
3183 colfg.red = TRUERED(base.fg);
3184 colfg.green = TRUEGREEN(base.fg);
3185 colfg.blue = TRUEBLUE(base.fg);
3186 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3189 fg = &dc.col[base.fg];
3192 if(IS_TRUECOL(base.bg)) {
3193 colbg.alpha = 0xffff;
3194 colbg.green = TRUEGREEN(base.bg);
3195 colbg.red = TRUERED(base.bg);
3196 colbg.blue = TRUEBLUE(base.bg);
3197 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3200 bg = &dc.col[base.bg];
3203 if(base.mode & ATTR_BOLD) {
3204 if(BETWEEN(base.fg, 0, 7)) {
3205 /* basic system colors */
3206 fg = &dc.col[base.fg + 8];
3207 } else if(BETWEEN(base.fg, 16, 195)) {
3209 fg = &dc.col[base.fg + 36];
3210 } else if(BETWEEN(base.fg, 232, 251)) {
3212 fg = &dc.col[base.fg + 4];
3215 * Those ranges will not be brightened:
3216 * 8 - 15 – bright system colors
3217 * 196 - 231 – highest 256 color cube
3218 * 252 - 255 – brightest colors in greyscale
3221 frcflags = FRC_BOLD;
3224 if(IS_SET(MODE_REVERSE)) {
3225 if(fg == &dc.col[defaultfg]) {
3226 fg = &dc.col[defaultbg];
3228 colfg.red = ~fg->color.red;
3229 colfg.green = ~fg->color.green;
3230 colfg.blue = ~fg->color.blue;
3231 colfg.alpha = fg->color.alpha;
3232 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3237 if(bg == &dc.col[defaultbg]) {
3238 bg = &dc.col[defaultfg];
3240 colbg.red = ~bg->color.red;
3241 colbg.green = ~bg->color.green;
3242 colbg.blue = ~bg->color.blue;
3243 colbg.alpha = bg->color.alpha;
3244 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3250 if(base.mode & ATTR_REVERSE) {
3256 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3259 /* Intelligent cleaning up of the borders. */
3261 xclear(0, (y == 0)? 0 : winy, borderpx,
3262 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3264 if(x + charlen >= term.col) {
3265 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3266 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3269 xclear(winx, 0, winx + width, borderpx);
3271 xclear(winx, winy + xw.ch, winx + width, xw.h);
3273 /* Clean up the region we want to draw to. */
3274 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3276 /* Set the clip region because Xft is sometimes dirty. */
3281 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3283 for(xp = winx; bytelen > 0;) {
3285 * Search for the range in the to be printed string of glyphs
3286 * that are in the main font. Then print that range. If
3287 * some glyph is found that is not in the font, do the
3293 oneatatime = font->width != xw.cw;
3296 u8cblen = utf8decode(s, &u8char);
3300 doesexist = XftCharExists(xw.dpy, font->match, u8char);
3301 if(oneatatime || !doesexist || bytelen <= 0) {
3302 if(oneatatime || bytelen <= 0) {
3310 XftDrawStringUtf8(xw.draw, fg,
3312 winy + font->ascent,
3330 /* Search the font cache. */
3331 for(i = 0; i < frclen; i++) {
3332 if(XftCharExists(xw.dpy, frc[i].font, u8char)
3333 && frc[i].flags == frcflags) {
3338 /* Nothing was found. */
3342 fcsets[0] = font->set;
3345 * Nothing was found in the cache. Now use
3346 * some dozen of Fontconfig calls to get the
3347 * font for one single character.
3349 * Xft and fontconfig are design failures.
3351 fcpattern = FcPatternDuplicate(font->pattern);
3352 fccharset = FcCharSetCreate();
3354 FcCharSetAddChar(fccharset, u8char);
3355 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3357 FcPatternAddBool(fcpattern, FC_SCALABLE,
3360 FcConfigSubstitute(0, fcpattern,
3362 FcDefaultSubstitute(fcpattern);
3364 fontpattern = FcFontSetMatch(0, fcsets,
3365 FcTrue, fcpattern, &fcres);
3368 * Overwrite or create the new cache entry.
3370 if(frclen >= LEN(frc)) {
3371 frclen = LEN(frc) - 1;
3372 XftFontClose(xw.dpy, frc[frclen].font);
3375 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3377 frc[frclen].flags = frcflags;
3382 FcPatternDestroy(fcpattern);
3383 FcCharSetDestroy(fccharset);
3386 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3387 xp, winy + frc[i].font->ascent,
3388 (FcChar8 *)u8c, u8cblen);
3390 xp += xw.cw * wcwidth(u8char);
3394 * This is how the loop above actually should be. Why does the
3395 * application have to care about font details?
3397 * I have to repeat: Xft and Fontconfig are design failures.
3400 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3401 winy + font->ascent, (FcChar8 *)s, bytelen);
3404 if(base.mode & ATTR_UNDERLINE) {
3405 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3409 /* Reset clip to none. */
3410 XftDrawSetClip(xw.draw, 0);
3415 static int oldx = 0, oldy = 0;
3416 int sl, width, curx;
3417 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3419 LIMIT(oldx, 0, term.col-1);
3420 LIMIT(oldy, 0, term.row-1);
3424 /* adjust position if in dummy */
3425 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3427 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3430 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3432 /* remove the old cursor */
3433 sl = utf8size(term.line[oldy][oldx].c);
3434 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3435 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3438 /* draw the new one */
3439 if(!(IS_SET(MODE_HIDE))) {
3440 if(xw.state & WIN_FOCUSED) {
3441 if(IS_SET(MODE_REVERSE)) {
3442 g.mode |= ATTR_REVERSE;
3448 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3450 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3452 XftDrawRect(xw.draw, &dc.col[defaultcs],
3453 borderpx + curx * xw.cw,
3454 borderpx + term.c.y * xw.ch,
3456 XftDrawRect(xw.draw, &dc.col[defaultcs],
3457 borderpx + curx * xw.cw,
3458 borderpx + term.c.y * xw.ch,
3460 XftDrawRect(xw.draw, &dc.col[defaultcs],
3461 borderpx + (curx + 1) * xw.cw - 1,
3462 borderpx + term.c.y * xw.ch,
3464 XftDrawRect(xw.draw, &dc.col[defaultcs],
3465 borderpx + curx * xw.cw,
3466 borderpx + (term.c.y + 1) * xw.ch - 1,
3469 oldx = curx, oldy = term.c.y;
3475 xsettitle(char *p) {
3478 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3480 XSetWMName(xw.dpy, xw.win, &prop);
3481 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3487 xsettitle(opt_title ? opt_title : "st");
3491 redraw(int timeout) {
3492 struct timespec tv = {0, timeout * 1000};
3498 nanosleep(&tv, NULL);
3499 XSync(xw.dpy, False); /* necessary for a good tput flash */
3505 drawregion(0, 0, term.col, term.row);
3506 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3508 XSetForeground(xw.dpy, dc.gc,
3509 dc.col[IS_SET(MODE_REVERSE)?
3510 defaultfg : defaultbg].pixel);
3514 drawregion(int x1, int y1, int x2, int y2) {
3515 int ic, ib, x, y, ox, sl;
3517 char buf[DRAW_BUF_SIZ];
3518 bool ena_sel = sel.ob.x != -1;
3521 if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
3524 if(!(xw.state & WIN_VISIBLE))
3527 for(y = y1; y < y2; y++) {
3531 xtermclear(0, y, term.col, y);
3533 base = term.line[y][0];
3535 for(x = x1; x < x2; x++) {
3536 new = term.line[y][x];
3537 if(new.mode == ATTR_WDUMMY)
3539 if(ena_sel && selected(x, y))
3540 new.mode ^= ATTR_REVERSE;
3541 if(ib > 0 && (ATTRCMP(base, new)
3542 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3543 xdraws(buf, base, ox, y, ic, ib);
3551 sl = utf8decode(new.c, &u8char);
3552 memcpy(buf+ib, new.c, sl);
3554 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3557 xdraws(buf, base, ox, y, ic, ib);
3563 expose(XEvent *ev) {
3564 XExposeEvent *e = &ev->xexpose;
3566 if(xw.state & WIN_REDRAW) {
3568 xw.state &= ~WIN_REDRAW;
3574 visibility(XEvent *ev) {
3575 XVisibilityEvent *e = &ev->xvisibility;
3577 if(e->state == VisibilityFullyObscured) {
3578 xw.state &= ~WIN_VISIBLE;
3579 } else if(!(xw.state & WIN_VISIBLE)) {
3580 /* need a full redraw for next Expose, not just a buf copy */
3581 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3587 xw.state &= ~WIN_VISIBLE;
3591 xsetpointermotion(int set) {
3592 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3593 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3597 xseturgency(int add) {
3598 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3600 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
3601 XSetWMHints(xw.dpy, xw.win, h);
3607 XFocusChangeEvent *e = &ev->xfocus;
3609 if(e->mode == NotifyGrab)
3612 if(ev->type == FocusIn) {
3613 XSetICFocus(xw.xic);
3614 xw.state |= WIN_FOCUSED;
3616 if(IS_SET(MODE_FOCUS))
3617 ttywrite("\033[I", 3);
3619 XUnsetICFocus(xw.xic);
3620 xw.state &= ~WIN_FOCUSED;
3621 if(IS_SET(MODE_FOCUS))
3622 ttywrite("\033[O", 3);
3627 match(uint mask, uint state) {
3628 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3632 numlock(const Arg *dummy) {
3637 kmap(KeySym k, uint state) {
3641 /* Check for mapped keys out of X11 function keys. */
3642 for(i = 0; i < LEN(mappedkeys); i++) {
3643 if(mappedkeys[i] == k)
3646 if(i == LEN(mappedkeys)) {
3647 if((k & 0xFFFF) < 0xFD00)
3651 for(kp = key; kp < key + LEN(key); kp++) {
3655 if(!match(kp->mask, state))
3658 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3660 if(term.numlock && kp->appkey == 2)
3663 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3666 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3676 kpress(XEvent *ev) {
3677 XKeyEvent *e = &ev->xkey;
3679 char buf[32], *customkey;
3685 if(IS_SET(MODE_KBDLOCK))
3688 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3690 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3691 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3692 bp->func(&(bp->arg));
3697 /* 2. custom keys from config.h */
3698 if((customkey = kmap(ksym, e->state))) {
3699 ttysend(customkey, strlen(customkey));
3703 /* 3. composed string from input method */
3706 if(len == 1 && e->state & Mod1Mask) {
3707 if(IS_SET(MODE_8BIT)) {
3710 len = utf8encode(&c, buf);
3723 cmessage(XEvent *e) {
3726 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3728 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3729 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3730 xw.state |= WIN_FOCUSED;
3732 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3733 xw.state &= ~WIN_FOCUSED;
3735 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3736 /* Send SIGHUP to shell */
3743 cresize(int width, int height) {
3751 col = (xw.w - 2 * borderpx) / xw.cw;
3752 row = (xw.h - 2 * borderpx) / xw.ch;
3761 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3764 cresize(e->xconfigure.width, e->xconfigure.height);
3770 int w = xw.w, h = xw.h;
3772 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3773 struct timeval drawtimeout, *tv = NULL, now, last, lastblink;
3775 /* Waiting for window mapping */
3777 XNextEvent(xw.dpy, &ev);
3778 if(ev.type == ConfigureNotify) {
3779 w = ev.xconfigure.width;
3780 h = ev.xconfigure.height;
3781 } else if(ev.type == MapNotify) {
3790 cresize(xw.fw, xw.fh);
3792 gettimeofday(&lastblink, NULL);
3793 gettimeofday(&last, NULL);
3795 for(xev = actionfps;;) {
3799 FD_SET(cmdfd, &rfd);
3802 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3805 die("select failed: %s\n", SERRNO);
3807 if(FD_ISSET(cmdfd, &rfd)) {
3810 blinkset = tattrset(ATTR_BLINK);
3812 MODBIT(term.mode, 0, MODE_BLINK);
3816 if(FD_ISSET(xfd, &rfd))
3819 gettimeofday(&now, NULL);
3820 drawtimeout.tv_sec = 0;
3821 drawtimeout.tv_usec = (1000/xfps) * 1000;
3825 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3826 tsetdirtattr(ATTR_BLINK);
3827 term.mode ^= MODE_BLINK;
3828 gettimeofday(&lastblink, NULL);
3831 deltatime = TIMEDIFF(now, last);
3832 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3839 while(XPending(xw.dpy)) {
3840 XNextEvent(xw.dpy, &ev);
3841 if(XFilterEvent(&ev, None))
3843 if(handler[ev.type])
3844 (handler[ev.type])(&ev);
3850 if(xev && !FD_ISSET(xfd, &rfd))
3852 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3854 if(TIMEDIFF(now, lastblink) \
3856 drawtimeout.tv_usec = 1;
3858 drawtimeout.tv_usec = (1000 * \
3873 die("%s " VERSION " (c) 2010-2013 st engineers\n" \
3874 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3875 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3879 main(int argc, char *argv[]) {
3884 xw.fw = xw.fh = xw.fx = xw.fy = 0;
3889 allowaltscreen = false;
3892 opt_class = EARGF(usage());
3895 /* eat all remaining arguments */
3898 if(argv[1] != NULL && opt_title == NULL) {
3899 titles = xstrdup(argv[1]);
3900 opt_title = basename(titles);
3905 opt_font = EARGF(usage());
3908 bitm = XParseGeometry(EARGF(usage()), &xr, &yr, &wr, &hr);
3913 if(bitm & WidthValue)
3915 if(bitm & HeightValue)
3917 if(bitm & XNegative && xw.fx == 0)
3919 if(bitm & YNegative && xw.fy == 0)
3922 if(xw.fh != 0 && xw.fw != 0)
3926 opt_io = EARGF(usage());
3929 opt_title = EARGF(usage());
3932 opt_embed = EARGF(usage());
3940 setlocale(LC_CTYPE, "");
3941 XSetLocaleModifiers("");