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 SERRNO strerror(errno)
69 #define MIN(a, b) ((a) < (b) ? (a) : (b))
70 #define MAX(a, b) ((a) < (b) ? (b) : (a))
71 #define LEN(a) (sizeof(a) / sizeof(a[0]))
72 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
73 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
74 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
75 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
76 #define IS_SET(flag) ((term.mode & (flag)) != 0)
77 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
78 #define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
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 fx, fy, fw, fh; /* fixed geometry */
254 int tw, th; /* tty width and height */
255 int w, h; /* window width and height */
256 int ch; /* char height */
257 int cw; /* char width */
258 char state; /* focus, redraw, visible */
271 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
272 signed char appkey; /* application keypad */
273 signed char appcursor; /* application cursor */
274 signed char crlf; /* crlf mode */
282 * Selection variables:
283 * nb – normalized coordinates of the beginning of the selection
284 * ne – normalized coordinates of the end of the selection
285 * ob – original coordinates of the beginning of the selection
286 * oe – original coordinates of the end of the selection
295 struct timeval tclick1;
296 struct timeval tclick2;
309 void (*func)(const Arg *);
313 /* function definitions used in config.h */
314 static void clippaste(const Arg *);
315 static void numlock(const Arg *);
316 static void selpaste(const Arg *);
317 static void xzoom(const Arg *);
318 static void printsel(const Arg *);
319 static void printscreen(const Arg *) ;
320 static void toggleprinter(const Arg *);
322 /* Config.h for applying patches and the configuration. */
338 /* Drawing Context */
340 Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
341 Font font, bfont, ifont, ibfont;
345 static void die(const char *, ...);
346 static void draw(void);
347 static void redraw(int);
348 static void drawregion(int, int, int, int);
349 static void execsh(void);
350 static void sigchld(int);
351 static void run(void);
353 static void csidump(void);
354 static void csihandle(void);
355 static void csiparse(void);
356 static void csireset(void);
357 static void strdump(void);
358 static void strhandle(void);
359 static void strparse(void);
360 static void strreset(void);
362 static int tattrset(int);
363 static void tprinter(char *s, size_t len);
364 static void tdumpsel(void);
365 static void tdumpline(int);
366 static void tdump(void);
367 static void tclearregion(int, int, int, int);
368 static void tcursor(int);
369 static void tdeletechar(int);
370 static void tdeleteline(int);
371 static void tinsertblank(int);
372 static void tinsertblankline(int);
373 static void tmoveto(int, int);
374 static void tmoveato(int x, int y);
375 static void tnew(int, int);
376 static void tnewline(int);
377 static void tputtab(bool);
378 static void tputc(char *, int);
379 static void treset(void);
380 static int tresize(int, int);
381 static void tscrollup(int, int);
382 static void tscrolldown(int, int);
383 static void tsetattr(int*, int);
384 static void tsetchar(char *, Glyph *, int, int);
385 static void tsetscroll(int, int);
386 static void tswapscreen(void);
387 static void tsetdirt(int, int);
388 static void tsetdirtattr(int);
389 static void tsetmode(bool, bool, int *, int);
390 static void tfulldirt(void);
391 static void techo(char *, int);
392 static int32_t tdefcolor(int *, int *, int);
393 static void tselcs(void);
394 static void tdeftran(char);
395 static inline bool match(uint, uint);
396 static void ttynew(void);
397 static void ttyread(void);
398 static void ttyresize(void);
399 static void ttysend(char *, size_t);
400 static void ttywrite(const char *, size_t);
402 static void xdraws(char *, Glyph, int, int, int, int);
403 static void xhints(void);
404 static void xclear(int, int, int, int);
405 static void xdrawcursor(void);
406 static void xinit(void);
407 static void xloadcols(void);
408 static int xsetcolorname(int, const char *);
409 static int xloadfont(Font *, FcPattern *);
410 static void xloadfonts(char *, double);
411 static int xloadfontset(Font *);
412 static void xsettitle(char *);
413 static void xresettitle(void);
414 static void xsetpointermotion(int);
415 static void xseturgency(int);
416 static void xsetsel(char*);
417 static void xtermclear(int, int, int, int);
418 static void xunloadfont(Font *f);
419 static void xunloadfonts(void);
420 static void xresize(int, int);
422 static void expose(XEvent *);
423 static void visibility(XEvent *);
424 static void unmap(XEvent *);
425 static char *kmap(KeySym, uint);
426 static void kpress(XEvent *);
427 static void cmessage(XEvent *);
428 static void cresize(int, int);
429 static void resize(XEvent *);
430 static void focus(XEvent *);
431 static void brelease(XEvent *);
432 static void bpress(XEvent *);
433 static void bmotion(XEvent *);
434 static void selnotify(XEvent *);
435 static void selclear(XEvent *);
436 static void selrequest(XEvent *);
438 static void selinit(void);
439 static void selsort(void);
440 static inline bool selected(int, int);
441 static char *getsel(void);
442 static void selcopy(void);
443 static void selscroll(int, int);
444 static void selsnap(int, int *, int *, int);
446 static size_t utf8decode(char *, long *, size_t);
447 static long utf8decodebyte(char, size_t *);
448 static size_t utf8encode(long, char *, size_t);
449 static char utf8encodebyte(long, size_t);
450 static size_t utf8len(char *);
451 static size_t utf8validate(long *, size_t);
453 static ssize_t xwrite(int, char *, size_t);
454 static void *xmalloc(size_t);
455 static void *xrealloc(void *, size_t);
456 static char *xstrdup(char *s);
458 static void (*handler[LASTEvent])(XEvent *) = {
460 [ClientMessage] = cmessage,
461 [ConfigureNotify] = resize,
462 [VisibilityNotify] = visibility,
463 [UnmapNotify] = unmap,
467 [MotionNotify] = bmotion,
468 [ButtonPress] = bpress,
469 [ButtonRelease] = brelease,
470 [SelectionClear] = selclear,
471 [SelectionNotify] = selnotify,
472 [SelectionRequest] = selrequest,
479 static CSIEscape csiescseq;
480 static STREscape strescseq;
483 static Selection sel;
484 static int iofd = STDOUT_FILENO;
485 static char **opt_cmd = NULL;
486 static char *opt_io = NULL;
487 static char *opt_title = NULL;
488 static char *opt_embed = NULL;
489 static char *opt_class = NULL;
490 static char *opt_font = NULL;
491 static int oldbutton = 3; /* button event on startup: 3 = release */
493 static char *usedfont = NULL;
494 static double usedfontsize = 0;
496 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
497 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
498 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
499 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
501 /* Font Ring Cache */
514 /* Fontcache is an array now. A new font will be appended to the array. */
515 static Fontcache frc[16];
516 static int frclen = 0;
519 xwrite(int fd, char *s, size_t len) {
523 ssize_t r = write(fd, s, len);
533 xmalloc(size_t len) {
534 void *p = malloc(len);
537 die("Out of memory\n");
543 xrealloc(void *p, size_t len) {
544 if((p = realloc(p, len)) == NULL)
545 die("Out of memory\n");
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");
995 * As seen in selcopy:
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, SERRNO);
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", SERRNO);
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", SERRNO);
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", SERRNO);
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", SERRNO);
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", SERRNO);
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 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1405 for(i = term.bot; i >= orig+n; i--) {
1406 temp = term.line[i];
1407 term.line[i] = term.line[i-n];
1408 term.line[i-n] = temp;
1411 term.dirty[i-n] = 1;
1418 tscrollup(int orig, int n) {
1421 LIMIT(n, 0, term.bot-orig+1);
1423 tclearregion(0, orig, term.col-1, orig+n-1);
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 term.dirty[i+n] = 1;
1434 selscroll(orig, -n);
1438 selscroll(int orig, int n) {
1442 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1443 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1447 if(sel.type == SEL_RECTANGULAR) {
1448 if(sel.ob.y < term.top)
1449 sel.ob.y = term.top;
1450 if(sel.oe.y > term.bot)
1451 sel.oe.y = term.bot;
1453 if(sel.ob.y < term.top) {
1454 sel.ob.y = term.top;
1457 if(sel.oe.y > term.bot) {
1458 sel.oe.y = term.bot;
1459 sel.oe.x = term.col;
1467 tnewline(int first_col) {
1471 tscrollup(term.top, 1);
1475 tmoveto(first_col ? 0 : term.c.x, y);
1480 char *p = csiescseq.buf, *np;
1489 csiescseq.buf[csiescseq.len] = '\0';
1490 while(p < csiescseq.buf+csiescseq.len) {
1492 v = strtol(p, &np, 10);
1495 if(v == LONG_MAX || v == LONG_MIN)
1497 csiescseq.arg[csiescseq.narg++] = v;
1499 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1503 csiescseq.mode = *p;
1506 /* for absolute user moves, when decom is set */
1508 tmoveato(int x, int y) {
1509 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1513 tmoveto(int x, int y) {
1516 if(term.c.state & CURSOR_ORIGIN) {
1521 maxy = term.row - 1;
1523 LIMIT(x, 0, term.col-1);
1524 LIMIT(y, miny, maxy);
1525 term.c.state &= ~CURSOR_WRAPNEXT;
1531 tsetchar(char *c, Glyph *attr, int x, int y) {
1532 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1533 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1534 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1535 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1536 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1537 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1538 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1539 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1540 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1544 * The table is proudly stolen from rxvt.
1546 if(attr->mode & ATTR_GFX) {
1547 if(c[0] >= 0x41 && c[0] <= 0x7e
1548 && vt100_0[c[0] - 0x41]) {
1549 c = vt100_0[c[0] - 0x41];
1553 if(term.line[y][x].mode & ATTR_WIDE) {
1554 if(x+1 < term.col) {
1555 term.line[y][x+1].c[0] = ' ';
1556 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1558 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1559 term.line[y][x-1].c[0] = ' ';
1560 term.line[y][x-1].mode &= ~ATTR_WIDE;
1564 term.line[y][x] = *attr;
1565 memcpy(term.line[y][x].c, c, UTF_SIZ);
1569 tclearregion(int x1, int y1, int x2, int y2) {
1573 temp = x1, x1 = x2, x2 = temp;
1575 temp = y1, y1 = y2, y2 = temp;
1577 LIMIT(x1, 0, term.col-1);
1578 LIMIT(x2, 0, term.col-1);
1579 LIMIT(y1, 0, term.row-1);
1580 LIMIT(y2, 0, term.row-1);
1582 for(y = y1; y <= y2; y++) {
1584 for(x = x1; x <= x2; x++) {
1587 term.line[y][x] = term.c.attr;
1588 memcpy(term.line[y][x].c, " ", 2);
1594 tdeletechar(int n) {
1595 int src = term.c.x + n;
1597 int size = term.col - src;
1599 term.dirty[term.c.y] = 1;
1601 if(src >= term.col) {
1602 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1606 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1607 size * sizeof(Glyph));
1608 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1612 tinsertblank(int n) {
1615 int size = term.col - dst;
1617 term.dirty[term.c.y] = 1;
1619 if(dst >= term.col) {
1620 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1624 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1625 size * sizeof(Glyph));
1626 tclearregion(src, term.c.y, dst - 1, term.c.y);
1630 tinsertblankline(int n) {
1631 if(term.c.y < term.top || term.c.y > term.bot)
1634 tscrolldown(term.c.y, n);
1638 tdeleteline(int n) {
1639 if(term.c.y < term.top || term.c.y > term.bot)
1642 tscrollup(term.c.y, n);
1646 tdefcolor(int *attr, int *npar, int l) {
1650 switch (attr[*npar + 1]) {
1651 case 2: /* direct colour in RGB space */
1652 if (*npar + 4 >= l) {
1654 "erresc(38): Incorrect number of parameters (%d)\n",
1658 r = attr[*npar + 2];
1659 g = attr[*npar + 3];
1660 b = attr[*npar + 4];
1662 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1663 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1666 idx = TRUECOLOR(r, g, b);
1668 case 5: /* indexed colour */
1669 if (*npar + 2 >= l) {
1671 "erresc(38): Incorrect number of parameters (%d)\n",
1676 if(!BETWEEN(attr[*npar], 0, 255))
1677 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1681 case 0: /* implemented defined (only foreground) */
1682 case 1: /* transparent */
1683 case 3: /* direct colour in CMY space */
1684 case 4: /* direct colour in CMYK space */
1687 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1694 tsetattr(int *attr, int l) {
1698 for(i = 0; i < l; i++) {
1701 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
1702 | ATTR_BOLD | ATTR_ITALIC \
1704 term.c.attr.fg = defaultfg;
1705 term.c.attr.bg = defaultbg;
1708 term.c.attr.mode |= ATTR_BOLD;
1711 term.c.attr.mode |= ATTR_ITALIC;
1714 term.c.attr.mode |= ATTR_UNDERLINE;
1716 case 5: /* slow blink */
1717 case 6: /* rapid blink */
1718 term.c.attr.mode |= ATTR_BLINK;
1721 term.c.attr.mode |= ATTR_REVERSE;
1725 term.c.attr.mode &= ~ATTR_BOLD;
1728 term.c.attr.mode &= ~ATTR_ITALIC;
1731 term.c.attr.mode &= ~ATTR_UNDERLINE;
1735 term.c.attr.mode &= ~ATTR_BLINK;
1738 term.c.attr.mode &= ~ATTR_REVERSE;
1741 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1742 term.c.attr.fg = idx;
1745 term.c.attr.fg = defaultfg;
1748 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1749 term.c.attr.bg = idx;
1752 term.c.attr.bg = defaultbg;
1755 if(BETWEEN(attr[i], 30, 37)) {
1756 term.c.attr.fg = attr[i] - 30;
1757 } else if(BETWEEN(attr[i], 40, 47)) {
1758 term.c.attr.bg = attr[i] - 40;
1759 } else if(BETWEEN(attr[i], 90, 97)) {
1760 term.c.attr.fg = attr[i] - 90 + 8;
1761 } else if(BETWEEN(attr[i], 100, 107)) {
1762 term.c.attr.bg = attr[i] - 100 + 8;
1765 "erresc(default): gfx attr %d unknown\n",
1766 attr[i]), csidump();
1774 tsetscroll(int t, int b) {
1777 LIMIT(t, 0, term.row-1);
1778 LIMIT(b, 0, term.row-1);
1788 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
1791 tsetmode(bool priv, bool set, int *args, int narg) {
1795 for(lim = args + narg; args < lim; ++args) {
1799 case 1: /* DECCKM -- Cursor key */
1800 MODBIT(term.mode, set, MODE_APPCURSOR);
1802 case 5: /* DECSCNM -- Reverse video */
1804 MODBIT(term.mode, set, MODE_REVERSE);
1805 if(mode != term.mode)
1806 redraw(REDRAW_TIMEOUT);
1808 case 6: /* DECOM -- Origin */
1809 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1812 case 7: /* DECAWM -- Auto wrap */
1813 MODBIT(term.mode, set, MODE_WRAP);
1815 case 0: /* Error (IGNORED) */
1816 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1817 case 3: /* DECCOLM -- Column (IGNORED) */
1818 case 4: /* DECSCLM -- Scroll (IGNORED) */
1819 case 8: /* DECARM -- Auto repeat (IGNORED) */
1820 case 18: /* DECPFF -- Printer feed (IGNORED) */
1821 case 19: /* DECPEX -- Printer extent (IGNORED) */
1822 case 42: /* DECNRCM -- National characters (IGNORED) */
1823 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1825 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1826 MODBIT(term.mode, !set, MODE_HIDE);
1828 case 9: /* X10 mouse compatibility mode */
1829 xsetpointermotion(0);
1830 MODBIT(term.mode, 0, MODE_MOUSE);
1831 MODBIT(term.mode, set, MODE_MOUSEX10);
1833 case 1000: /* 1000: report button press */
1834 xsetpointermotion(0);
1835 MODBIT(term.mode, 0, MODE_MOUSE);
1836 MODBIT(term.mode, set, MODE_MOUSEBTN);
1838 case 1002: /* 1002: report motion on button press */
1839 xsetpointermotion(0);
1840 MODBIT(term.mode, 0, MODE_MOUSE);
1841 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1843 case 1003: /* 1003: enable all mouse motions */
1844 xsetpointermotion(set);
1845 MODBIT(term.mode, 0, MODE_MOUSE);
1846 MODBIT(term.mode, set, MODE_MOUSEMANY);
1848 case 1004: /* 1004: send focus events to tty */
1849 MODBIT(term.mode, set, MODE_FOCUS);
1851 case 1006: /* 1006: extended reporting mode */
1852 MODBIT(term.mode, set, MODE_MOUSESGR);
1855 MODBIT(term.mode, set, MODE_8BIT);
1857 case 1049: /* swap screen & set/restore cursor as xterm */
1858 if (!allowaltscreen)
1860 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1862 case 47: /* swap screen */
1864 if (!allowaltscreen)
1866 alt = IS_SET(MODE_ALTSCREEN);
1868 tclearregion(0, 0, term.col-1,
1871 if(set ^ alt) /* set is always 1 or 0 */
1877 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1879 case 2004: /* 2004: bracketed paste mode */
1880 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1882 /* Not implemented mouse modes. See comments there. */
1883 case 1001: /* mouse highlight mode; can hang the
1884 terminal by design when implemented. */
1885 case 1005: /* UTF-8 mouse mode; will confuse
1886 applications not supporting UTF-8
1888 case 1015: /* urxvt mangled mouse mode; incompatible
1889 and can be mistaken for other control
1893 "erresc: unknown private set/reset mode %d\n",
1899 case 0: /* Error (IGNORED) */
1901 case 2: /* KAM -- keyboard action */
1902 MODBIT(term.mode, set, MODE_KBDLOCK);
1904 case 4: /* IRM -- Insertion-replacement */
1905 MODBIT(term.mode, set, MODE_INSERT);
1907 case 12: /* SRM -- Send/Receive */
1908 MODBIT(term.mode, !set, MODE_ECHO);
1910 case 20: /* LNM -- Linefeed/new line */
1911 MODBIT(term.mode, set, MODE_CRLF);
1915 "erresc: unknown set/reset mode %d\n",
1928 switch(csiescseq.mode) {
1931 fprintf(stderr, "erresc: unknown csi ");
1935 case '@': /* ICH -- Insert <n> blank char */
1936 DEFAULT(csiescseq.arg[0], 1);
1937 tinsertblank(csiescseq.arg[0]);
1939 case 'A': /* CUU -- Cursor <n> Up */
1940 DEFAULT(csiescseq.arg[0], 1);
1941 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1943 case 'B': /* CUD -- Cursor <n> Down */
1944 case 'e': /* VPR --Cursor <n> Down */
1945 DEFAULT(csiescseq.arg[0], 1);
1946 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1948 case 'i': /* MC -- Media Copy */
1949 switch(csiescseq.arg[0]) {
1954 tdumpline(term.c.y);
1960 term.mode &= ~MODE_PRINT;
1963 term.mode |= MODE_PRINT;
1967 case 'c': /* DA -- Device Attributes */
1968 if(csiescseq.arg[0] == 0)
1969 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1971 case 'C': /* CUF -- Cursor <n> Forward */
1972 case 'a': /* HPR -- Cursor <n> Forward */
1973 DEFAULT(csiescseq.arg[0], 1);
1974 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1976 case 'D': /* CUB -- Cursor <n> Backward */
1977 DEFAULT(csiescseq.arg[0], 1);
1978 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1980 case 'E': /* CNL -- Cursor <n> Down and first col */
1981 DEFAULT(csiescseq.arg[0], 1);
1982 tmoveto(0, term.c.y+csiescseq.arg[0]);
1984 case 'F': /* CPL -- Cursor <n> Up and first col */
1985 DEFAULT(csiescseq.arg[0], 1);
1986 tmoveto(0, term.c.y-csiescseq.arg[0]);
1988 case 'g': /* TBC -- Tabulation clear */
1989 switch(csiescseq.arg[0]) {
1990 case 0: /* clear current tab stop */
1991 term.tabs[term.c.x] = 0;
1993 case 3: /* clear all the tabs */
1994 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
2000 case 'G': /* CHA -- Move to <col> */
2002 DEFAULT(csiescseq.arg[0], 1);
2003 tmoveto(csiescseq.arg[0]-1, term.c.y);
2005 case 'H': /* CUP -- Move to <row> <col> */
2007 DEFAULT(csiescseq.arg[0], 1);
2008 DEFAULT(csiescseq.arg[1], 1);
2009 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
2011 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
2012 DEFAULT(csiescseq.arg[0], 1);
2013 while(csiescseq.arg[0]--)
2016 case 'J': /* ED -- Clear screen */
2018 switch(csiescseq.arg[0]) {
2020 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2021 if(term.c.y < term.row-1) {
2022 tclearregion(0, term.c.y+1, term.col-1,
2028 tclearregion(0, 0, term.col-1, term.c.y-1);
2029 tclearregion(0, term.c.y, term.c.x, term.c.y);
2032 tclearregion(0, 0, term.col-1, term.row-1);
2038 case 'K': /* EL -- Clear line */
2039 switch(csiescseq.arg[0]) {
2041 tclearregion(term.c.x, term.c.y, term.col-1,
2045 tclearregion(0, term.c.y, term.c.x, term.c.y);
2048 tclearregion(0, term.c.y, term.col-1, term.c.y);
2052 case 'S': /* SU -- Scroll <n> line up */
2053 DEFAULT(csiescseq.arg[0], 1);
2054 tscrollup(term.top, csiescseq.arg[0]);
2056 case 'T': /* SD -- Scroll <n> line down */
2057 DEFAULT(csiescseq.arg[0], 1);
2058 tscrolldown(term.top, csiescseq.arg[0]);
2060 case 'L': /* IL -- Insert <n> blank lines */
2061 DEFAULT(csiescseq.arg[0], 1);
2062 tinsertblankline(csiescseq.arg[0]);
2064 case 'l': /* RM -- Reset Mode */
2065 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2067 case 'M': /* DL -- Delete <n> lines */
2068 DEFAULT(csiescseq.arg[0], 1);
2069 tdeleteline(csiescseq.arg[0]);
2071 case 'X': /* ECH -- Erase <n> char */
2072 DEFAULT(csiescseq.arg[0], 1);
2073 tclearregion(term.c.x, term.c.y,
2074 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2076 case 'P': /* DCH -- Delete <n> char */
2077 DEFAULT(csiescseq.arg[0], 1);
2078 tdeletechar(csiescseq.arg[0]);
2080 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2081 DEFAULT(csiescseq.arg[0], 1);
2082 while(csiescseq.arg[0]--)
2085 case 'd': /* VPA -- Move to <row> */
2086 DEFAULT(csiescseq.arg[0], 1);
2087 tmoveato(term.c.x, csiescseq.arg[0]-1);
2089 case 'h': /* SM -- Set terminal mode */
2090 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2092 case 'm': /* SGR -- Terminal attribute (color) */
2093 tsetattr(csiescseq.arg, csiescseq.narg);
2095 case 'n': /* DSR – Device Status Report (cursor position) */
2096 if (csiescseq.arg[0] == 6) {
2097 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2098 term.c.y+1, term.c.x+1);
2102 case 'r': /* DECSTBM -- Set Scrolling Region */
2103 if(csiescseq.priv) {
2106 DEFAULT(csiescseq.arg[0], 1);
2107 DEFAULT(csiescseq.arg[1], term.row);
2108 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2112 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2113 tcursor(CURSOR_SAVE);
2115 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2116 tcursor(CURSOR_LOAD);
2127 for(i = 0; i < csiescseq.len; i++) {
2128 c = csiescseq.buf[i] & 0xff;
2131 } else if(c == '\n') {
2133 } else if(c == '\r') {
2135 } else if(c == 0x1b) {
2138 printf("(%02x)", c);
2146 memset(&csiescseq, 0, sizeof(csiescseq));
2155 narg = strescseq.narg;
2156 par = atoi(strescseq.args[0]);
2158 switch(strescseq.type) {
2159 case ']': /* OSC -- Operating System Command */
2165 xsettitle(strescseq.args[1]);
2167 case 4: /* color set */
2170 p = strescseq.args[2];
2172 case 104: /* color reset, here p = NULL */
2173 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2174 if (!xsetcolorname(j, p)) {
2175 fprintf(stderr, "erresc: invalid color %s\n", p);
2178 * TODO if defaultbg color is changed, borders
2186 case 'k': /* old title set compatibility */
2187 xsettitle(strescseq.args[0]);
2189 case 'P': /* DSC -- Device Control String */
2190 case '_': /* APC -- Application Program Command */
2191 case '^': /* PM -- Privacy Message */
2195 fprintf(stderr, "erresc: unknown str ");
2201 char *p = strescseq.buf;
2204 strescseq.buf[strescseq.len] = '\0';
2205 while(p && strescseq.narg < STR_ARG_SIZ)
2206 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2214 printf("ESC%c", strescseq.type);
2215 for(i = 0; i < strescseq.len; i++) {
2216 c = strescseq.buf[i] & 0xff;
2219 } else if(isprint(c)) {
2221 } else if(c == '\n') {
2223 } else if(c == '\r') {
2225 } else if(c == 0x1b) {
2228 printf("(%02x)", c);
2236 memset(&strescseq, 0, sizeof(strescseq));
2240 tprinter(char *s, size_t len) {
2241 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2242 fprintf(stderr, "Error writing in %s:%s\n",
2243 opt_io, strerror(errno));
2250 toggleprinter(const Arg *arg) {
2251 term.mode ^= MODE_PRINT;
2255 printscreen(const Arg *arg) {
2260 printsel(const Arg *arg) {
2269 if((ptr = getsel())) {
2270 tprinter(ptr, strlen(ptr));
2279 bp = &term.line[n][0];
2280 end = &bp[term.col-1];
2281 while(end > bp && !strcmp(" ", end->c))
2283 if(bp != end || strcmp(bp->c, " ")) {
2284 for( ;bp <= end; ++bp)
2285 tprinter(bp->c, strlen(bp->c));
2294 for(i = 0; i < term.row; ++i)
2299 tputtab(bool forward) {
2305 for(++x; x < term.col && !term.tabs[x]; ++x)
2310 for(--x; x > 0 && !term.tabs[x]; --x)
2313 tmoveto(x, term.c.y);
2317 techo(char *buf, int len) {
2318 for(; len > 0; buf++, len--) {
2321 if(c == '\033') { /* escape */
2324 } else if(c < '\x20') { /* control code */
2325 if(c != '\n' && c != '\r' && c != '\t') {
2339 tdeftran(char ascii) {
2341 static char tbl[][2] = {
2342 {'0', CS_GRAPHIC0}, {'1', CS_GRAPHIC1}, {'A', CS_UK},
2343 {'B', CS_USA}, {'<', CS_MULTI}, {'K', CS_GER},
2344 {'5', CS_FIN}, {'C', CS_FIN},
2348 for (bp = &tbl[0]; (c = (*bp)[0]) && c != ascii; ++bp)
2352 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2354 term.trantbl[term.icharset] = (*bp)[1];
2359 if (term.trantbl[term.charset] == CS_GRAPHIC0)
2360 term.c.attr.mode |= ATTR_GFX;
2362 term.c.attr.mode &= ~ATTR_GFX;
2366 tputc(char *c, int len) {
2368 bool control = ascii < '\x20' || ascii == 0177;
2375 utf8decode(c, &unicodep, UTF_SIZ);
2376 width = wcwidth(unicodep);
2379 if(IS_SET(MODE_PRINT))
2383 * STR sequences must be checked before anything else
2384 * because it can use some control codes as part of the sequence.
2386 if(term.esc & ESC_STR) {
2389 term.esc = ESC_START | ESC_STR_END;
2391 case '\a': /* backwards compatibility to xterm */
2396 if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2397 memmove(&strescseq.buf[strescseq.len], c, len);
2398 strescseq.len += len;
2401 * Here is a bug in terminals. If the user never sends
2402 * some code to stop the str or esc command, then st
2403 * will stop responding. But this is better than
2404 * silently failing with unknown characters. At least
2405 * then users will report back.
2407 * In the case users ever get fixed, here is the code:
2419 * Actions of control codes must be performed as soon they arrive
2420 * because they can be embedded inside a control sequence, and
2421 * they must not cause conflicts with sequences.
2429 tmoveto(term.c.x-1, term.c.y);
2432 tmoveto(0, term.c.y);
2437 /* go to first col if the mode is set */
2438 tnewline(IS_SET(MODE_CRLF));
2440 case '\a': /* BEL */
2441 if(!(xw.state & WIN_FOCUSED))
2444 XBell(xw.dpy, bellvolume);
2446 case '\033': /* ESC */
2448 term.esc = ESC_START;
2450 case '\016': /* SO */
2454 case '\017': /* SI */
2458 case '\032': /* SUB */
2459 case '\030': /* CAN */
2462 case '\005': /* ENQ (IGNORED) */
2463 case '\000': /* NUL (IGNORED) */
2464 case '\021': /* XON (IGNORED) */
2465 case '\023': /* XOFF (IGNORED) */
2466 case 0177: /* DEL (IGNORED) */
2469 } else if(term.esc & ESC_START) {
2470 if(term.esc & ESC_CSI) {
2471 csiescseq.buf[csiescseq.len++] = ascii;
2472 if(BETWEEN(ascii, 0x40, 0x7E)
2473 || csiescseq.len >= \
2474 sizeof(csiescseq.buf)-1) {
2479 } else if(term.esc & ESC_STR_END) {
2483 } else if(term.esc & ESC_ALTCHARSET) {
2487 } else if(term.esc & ESC_TEST) {
2488 if(ascii == '8') { /* DEC screen alignment test. */
2489 char E[UTF_SIZ] = "E";
2492 for(x = 0; x < term.col; ++x) {
2493 for(y = 0; y < term.row; ++y)
2494 tsetchar(E, &term.c.attr, x, y);
2501 term.esc |= ESC_CSI;
2504 term.esc |= ESC_TEST;
2506 case 'P': /* DCS -- Device Control String */
2507 case '_': /* APC -- Application Program Command */
2508 case '^': /* PM -- Privacy Message */
2509 case ']': /* OSC -- Operating System Command */
2510 case 'k': /* old title set compatibility */
2512 strescseq.type = ascii;
2513 term.esc |= ESC_STR;
2515 case '(': /* set primary charset G0 */
2516 case ')': /* set secondary charset G1 */
2517 case '*': /* set tertiary charset G2 */
2518 case '+': /* set quaternary charset G3 */
2519 term.icharset = ascii - '(';
2520 term.esc |= ESC_ALTCHARSET;
2522 case 'D': /* IND -- Linefeed */
2523 if(term.c.y == term.bot) {
2524 tscrollup(term.top, 1);
2526 tmoveto(term.c.x, term.c.y+1);
2530 case 'E': /* NEL -- Next line */
2531 tnewline(1); /* always go to first col */
2534 case 'H': /* HTS -- Horizontal tab stop */
2535 term.tabs[term.c.x] = 1;
2538 case 'M': /* RI -- Reverse index */
2539 if(term.c.y == term.top) {
2540 tscrolldown(term.top, 1);
2542 tmoveto(term.c.x, term.c.y-1);
2546 case 'Z': /* DECID -- Identify Terminal */
2547 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2550 case 'c': /* RIS -- Reset to inital state */
2556 case '=': /* DECPAM -- Application keypad */
2557 term.mode |= MODE_APPKEYPAD;
2560 case '>': /* DECPNM -- Normal keypad */
2561 term.mode &= ~MODE_APPKEYPAD;
2564 case '7': /* DECSC -- Save Cursor */
2565 tcursor(CURSOR_SAVE);
2568 case '8': /* DECRC -- Restore Cursor */
2569 tcursor(CURSOR_LOAD);
2572 case '\\': /* ST -- Stop */
2576 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2577 (uchar) ascii, isprint(ascii)? ascii:'.');
2582 * All characters which form part of a sequence are not
2588 * Display control codes only if we are in graphic mode
2590 if(control && !(term.c.attr.mode & ATTR_GFX))
2592 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2594 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2595 term.line[term.c.y][term.c.x].mode |= ATTR_WRAP;
2599 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
2600 memmove(&term.line[term.c.y][term.c.x+1],
2601 &term.line[term.c.y][term.c.x],
2602 (term.col - term.c.x - 1) * sizeof(Glyph));
2605 if(term.c.x+width > term.col)
2608 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2611 term.line[term.c.y][term.c.x].mode |= ATTR_WIDE;
2612 if(term.c.x+1 < term.col) {
2613 term.line[term.c.y][term.c.x+1].c[0] = '\0';
2614 term.line[term.c.y][term.c.x+1].mode = ATTR_WDUMMY;
2617 if(term.c.x+width < term.col) {
2618 tmoveto(term.c.x+width, term.c.y);
2620 term.c.state |= CURSOR_WRAPNEXT;
2625 tresize(int col, int row) {
2627 int minrow = MIN(row, term.row);
2628 int mincol = MIN(col, term.col);
2629 int slide = term.c.y - row + 1;
2633 if(col < 1 || row < 1)
2636 /* free unneeded rows */
2640 * slide screen to keep cursor where we expect it -
2641 * tscrollup would work here, but we can optimize to
2642 * memmove because we're freeing the earlier lines
2644 for(/* i = 0 */; i < slide; i++) {
2648 memmove(term.line, term.line + slide, row * sizeof(Line));
2649 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2651 for(i += row; i < term.row; i++) {
2656 /* resize to new height */
2657 term.line = xrealloc(term.line, row * sizeof(Line));
2658 term.alt = xrealloc(term.alt, row * sizeof(Line));
2659 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2660 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2662 /* resize each row to new width, zero-pad if needed */
2663 for(i = 0; i < minrow; i++) {
2665 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2666 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2669 /* allocate any new rows */
2670 for(/* i == minrow */; i < row; i++) {
2672 term.line[i] = xmalloc(col * sizeof(Glyph));
2673 term.alt[i] = xmalloc(col * sizeof(Glyph));
2675 if(col > term.col) {
2676 bp = term.tabs + term.col;
2678 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2679 while(--bp > term.tabs && !*bp)
2681 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2684 /* update terminal size */
2687 /* reset scrolling region */
2688 tsetscroll(0, row-1);
2689 /* make use of the LIMIT in tmoveto */
2690 tmoveto(term.c.x, term.c.y);
2691 /* Clearing both screens */
2694 if(mincol < col && 0 < minrow) {
2695 tclearregion(mincol, 0, col - 1, minrow - 1);
2697 if(0 < col && minrow < row) {
2698 tclearregion(0, minrow, col - 1, row - 1);
2701 } while(orig != term.line);
2707 xresize(int col, int row) {
2708 xw.tw = MAX(1, col * xw.cw);
2709 xw.th = MAX(1, row * xw.ch);
2711 XFreePixmap(xw.dpy, xw.buf);
2712 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2713 DefaultDepth(xw.dpy, xw.scr));
2714 XftDrawChange(xw.draw, xw.buf);
2715 xclear(0, 0, xw.w, xw.h);
2718 static inline ushort
2719 sixd_to_16bit(int x) {
2720 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2726 XRenderColor color = { .alpha = 0xffff };
2731 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2732 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2735 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
2736 for(i = 0; i < LEN(colorname); i++) {
2739 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2740 die("Could not allocate color '%s'\n", colorname[i]);
2744 /* load colors [16-255] ; same colors as xterm */
2745 for(i = 16, r = 0; r < 6; r++) {
2746 for(g = 0; g < 6; g++) {
2747 for(b = 0; b < 6; b++) {
2748 color.red = sixd_to_16bit(r);
2749 color.green = sixd_to_16bit(g);
2750 color.blue = sixd_to_16bit(b);
2751 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
2752 die("Could not allocate color %d\n", i);
2759 for(r = 0; r < 24; r++, i++) {
2760 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
2761 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
2763 die("Could not allocate color %d\n", i);
2770 xsetcolorname(int x, const char *name) {
2771 XRenderColor color = { .alpha = 0xffff };
2773 if (x < 0 || x > LEN(colorname))
2776 if(16 <= x && x < 16 + 216) {
2777 int r = (x - 16) / 36, g = ((x - 16) % 36) / 6, b = (x - 16) % 6;
2778 color.red = sixd_to_16bit(r);
2779 color.green = sixd_to_16bit(g);
2780 color.blue = sixd_to_16bit(b);
2781 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2782 return 0; /* something went wrong */
2785 } else if (16 + 216 <= x && x < 256) {
2786 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (x - (16 + 216));
2787 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2788 return 0; /* something went wrong */
2792 name = colorname[x];
2795 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &colour))
2802 xtermclear(int col1, int row1, int col2, int row2) {
2803 XftDrawRect(xw.draw,
2804 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2805 borderpx + col1 * xw.cw,
2806 borderpx + row1 * xw.ch,
2807 (col2-col1+1) * xw.cw,
2808 (row2-row1+1) * xw.ch);
2812 * Absolute coordinates.
2815 xclear(int x1, int y1, int x2, int y2) {
2816 XftDrawRect(xw.draw,
2817 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2818 x1, y1, x2-x1, y2-y1);
2823 XClassHint class = {opt_class ? opt_class : termname, termname};
2824 XWMHints wm = {.flags = InputHint, .input = 1};
2825 XSizeHints *sizeh = NULL;
2827 sizeh = XAllocSizeHints();
2828 if(xw.isfixed == False) {
2829 sizeh->flags = PSize | PResizeInc | PBaseSize;
2830 sizeh->height = xw.h;
2831 sizeh->width = xw.w;
2832 sizeh->height_inc = xw.ch;
2833 sizeh->width_inc = xw.cw;
2834 sizeh->base_height = 2 * borderpx;
2835 sizeh->base_width = 2 * borderpx;
2837 sizeh->flags = PMaxSize | PMinSize;
2838 sizeh->min_width = sizeh->max_width = xw.fw;
2839 sizeh->min_height = sizeh->max_height = xw.fh;
2842 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2848 xloadfont(Font *f, FcPattern *pattern) {
2852 match = FcFontMatch(NULL, pattern, &result);
2856 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2857 FcPatternDestroy(match);
2862 f->pattern = FcPatternDuplicate(pattern);
2864 f->ascent = f->match->ascent;
2865 f->descent = f->match->descent;
2867 f->rbearing = f->match->max_advance_width;
2869 f->height = f->ascent + f->descent;
2870 f->width = f->lbearing + f->rbearing;
2876 xloadfonts(char *fontstr, double fontsize) {
2878 FcResult r_sz, r_psz;
2881 if(fontstr[0] == '-') {
2882 pattern = XftXlfdParse(fontstr, False, False);
2884 pattern = FcNameParse((FcChar8 *)fontstr);
2888 die("st: can't open font %s\n", fontstr);
2891 FcPatternDel(pattern, FC_PIXEL_SIZE);
2892 FcPatternDel(pattern, FC_SIZE);
2893 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2894 usedfontsize = fontsize;
2896 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2897 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2898 if(r_psz == FcResultMatch) {
2899 usedfontsize = fontval;
2900 } else if(r_sz == FcResultMatch) {
2904 * Default font size is 12, if none given. This is to
2905 * have a known usedfontsize value.
2907 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2912 FcConfigSubstitute(0, pattern, FcMatchPattern);
2913 FcDefaultSubstitute(pattern);
2915 if(xloadfont(&dc.font, pattern))
2916 die("st: can't open font %s\n", fontstr);
2918 if(usedfontsize < 0) {
2919 FcPatternGetDouble(dc.font.match->pattern,
2920 FC_PIXEL_SIZE, 0, &fontval);
2921 usedfontsize = fontval;
2924 /* Setting character width and height. */
2925 xw.cw = CEIL(dc.font.width * cwscale);
2926 xw.ch = CEIL(dc.font.height * chscale);
2928 FcPatternDel(pattern, FC_SLANT);
2929 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2930 if(xloadfont(&dc.ifont, pattern))
2931 die("st: can't open font %s\n", fontstr);
2933 FcPatternDel(pattern, FC_WEIGHT);
2934 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2935 if(xloadfont(&dc.ibfont, pattern))
2936 die("st: can't open font %s\n", fontstr);
2938 FcPatternDel(pattern, FC_SLANT);
2939 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2940 if(xloadfont(&dc.bfont, pattern))
2941 die("st: can't open font %s\n", fontstr);
2943 FcPatternDestroy(pattern);
2947 xloadfontset(Font *f) {
2950 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
2956 xunloadfont(Font *f) {
2957 XftFontClose(xw.dpy, f->match);
2958 FcPatternDestroy(f->pattern);
2960 FcFontSetDestroy(f->set);
2964 xunloadfonts(void) {
2967 /* Free the loaded fonts in the font cache. */
2968 for(i = 0; i < frclen; i++) {
2969 XftFontClose(xw.dpy, frc[i].font);
2973 xunloadfont(&dc.font);
2974 xunloadfont(&dc.bfont);
2975 xunloadfont(&dc.ifont);
2976 xunloadfont(&dc.ibfont);
2980 xzoom(const Arg *arg) {
2982 xloadfonts(usedfont, usedfontsize + arg->i);
2993 pid_t thispid = getpid();
2995 if(!(xw.dpy = XOpenDisplay(NULL)))
2996 die("Can't open display\n");
2997 xw.scr = XDefaultScreen(xw.dpy);
2998 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3002 die("Could not init fontconfig.\n");
3004 usedfont = (opt_font == NULL)? font : opt_font;
3005 xloadfonts(usedfont, 0);
3008 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3011 /* adjust fixed window geometry */
3013 sw = DisplayWidth(xw.dpy, xw.scr);
3014 sh = DisplayHeight(xw.dpy, xw.scr);
3016 xw.fx = sw + xw.fx - xw.fw - 1;
3018 xw.fy = sh + xw.fy - xw.fh - 1;
3023 /* window - default size */
3024 xw.h = 2 * borderpx + term.row * xw.ch;
3025 xw.w = 2 * borderpx + term.col * xw.cw;
3031 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3032 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3033 xw.attrs.bit_gravity = NorthWestGravity;
3034 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3035 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3036 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3037 xw.attrs.colormap = xw.cmap;
3039 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3040 XRootWindow(xw.dpy, xw.scr);
3041 xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
3042 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3043 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3044 | CWEventMask | CWColormap, &xw.attrs);
3046 memset(&gcvalues, 0, sizeof(gcvalues));
3047 gcvalues.graphics_exposures = False;
3048 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3050 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3051 DefaultDepth(xw.dpy, xw.scr));
3052 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3053 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3055 /* Xft rendering context */
3056 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3059 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3060 XSetLocaleModifiers("@im=local");
3061 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3062 XSetLocaleModifiers("@im=");
3063 if((xw.xim = XOpenIM(xw.dpy,
3064 NULL, NULL, NULL)) == NULL) {
3065 die("XOpenIM failed. Could not open input"
3070 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3071 | XIMStatusNothing, XNClientWindow, xw.win,
3072 XNFocusWindow, xw.win, NULL);
3074 die("XCreateIC failed. Could not obtain input method.\n");
3076 /* white cursor, black outline */
3077 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3078 XDefineCursor(xw.dpy, xw.win, cursor);
3079 XRecolorCursor(xw.dpy, cursor,
3080 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3081 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3083 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3084 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3085 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3086 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3088 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3089 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3090 PropModeReplace, (unsigned char *)&thispid, 1);
3093 XMapWindow(xw.dpy, xw.win);
3095 XSync(xw.dpy, False);
3099 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3100 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3101 width = charlen * xw.cw, xp, i;
3103 int u8fl, u8fblen, u8cblen, doesexist;
3106 Font *font = &dc.font;
3108 FcPattern *fcpattern, *fontpattern;
3109 FcFontSet *fcsets[] = { NULL };
3110 FcCharSet *fccharset;
3111 Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3112 XRenderColor colfg, colbg;
3116 frcflags = FRC_NORMAL;
3118 if(base.mode & ATTR_ITALIC) {
3119 if(base.fg == defaultfg)
3120 base.fg = defaultitalic;
3122 frcflags = FRC_ITALIC;
3123 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3124 if(base.fg == defaultfg)
3125 base.fg = defaultitalic;
3127 frcflags = FRC_ITALICBOLD;
3128 } else if(base.mode & ATTR_UNDERLINE) {
3129 if(base.fg == defaultfg)
3130 base.fg = defaultunderline;
3133 if(IS_TRUECOL(base.fg)) {
3134 colfg.alpha = 0xffff;
3135 colfg.red = TRUERED(base.fg);
3136 colfg.green = TRUEGREEN(base.fg);
3137 colfg.blue = TRUEBLUE(base.fg);
3138 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3141 fg = &dc.col[base.fg];
3144 if(IS_TRUECOL(base.bg)) {
3145 colbg.alpha = 0xffff;
3146 colbg.green = TRUEGREEN(base.bg);
3147 colbg.red = TRUERED(base.bg);
3148 colbg.blue = TRUEBLUE(base.bg);
3149 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3152 bg = &dc.col[base.bg];
3155 if(base.mode & ATTR_BOLD) {
3156 if(BETWEEN(base.fg, 0, 7)) {
3157 /* basic system colors */
3158 fg = &dc.col[base.fg + 8];
3159 } else if(BETWEEN(base.fg, 16, 195)) {
3161 fg = &dc.col[base.fg + 36];
3162 } else if(BETWEEN(base.fg, 232, 251)) {
3164 fg = &dc.col[base.fg + 4];
3167 * Those ranges will not be brightened:
3168 * 8 - 15 – bright system colors
3169 * 196 - 231 – highest 256 color cube
3170 * 252 - 255 – brightest colors in greyscale
3173 frcflags = FRC_BOLD;
3176 if(IS_SET(MODE_REVERSE)) {
3177 if(fg == &dc.col[defaultfg]) {
3178 fg = &dc.col[defaultbg];
3180 colfg.red = ~fg->color.red;
3181 colfg.green = ~fg->color.green;
3182 colfg.blue = ~fg->color.blue;
3183 colfg.alpha = fg->color.alpha;
3184 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3189 if(bg == &dc.col[defaultbg]) {
3190 bg = &dc.col[defaultfg];
3192 colbg.red = ~bg->color.red;
3193 colbg.green = ~bg->color.green;
3194 colbg.blue = ~bg->color.blue;
3195 colbg.alpha = bg->color.alpha;
3196 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3202 if(base.mode & ATTR_REVERSE) {
3208 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3211 /* Intelligent cleaning up of the borders. */
3213 xclear(0, (y == 0)? 0 : winy, borderpx,
3214 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3216 if(x + charlen >= term.col) {
3217 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3218 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3221 xclear(winx, 0, winx + width, borderpx);
3223 xclear(winx, winy + xw.ch, winx + width, xw.h);
3225 /* Clean up the region we want to draw to. */
3226 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3228 /* Set the clip region because Xft is sometimes dirty. */
3233 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3235 for(xp = winx; bytelen > 0;) {
3237 * Search for the range in the to be printed string of glyphs
3238 * that are in the main font. Then print that range. If
3239 * some glyph is found that is not in the font, do the
3245 oneatatime = font->width != xw.cw;
3248 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3252 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3253 if(oneatatime || !doesexist || bytelen <= 0) {
3254 if(oneatatime || bytelen <= 0) {
3262 XftDrawStringUtf8(xw.draw, fg,
3264 winy + font->ascent,
3282 /* Search the font cache. */
3283 for(i = 0; i < frclen; i++) {
3284 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3285 && frc[i].flags == frcflags) {
3290 /* Nothing was found. */
3294 fcsets[0] = font->set;
3297 * Nothing was found in the cache. Now use
3298 * some dozen of Fontconfig calls to get the
3299 * font for one single character.
3301 * Xft and fontconfig are design failures.
3303 fcpattern = FcPatternDuplicate(font->pattern);
3304 fccharset = FcCharSetCreate();
3306 FcCharSetAddChar(fccharset, unicodep);
3307 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3309 FcPatternAddBool(fcpattern, FC_SCALABLE,
3312 FcConfigSubstitute(0, fcpattern,
3314 FcDefaultSubstitute(fcpattern);
3316 fontpattern = FcFontSetMatch(0, fcsets,
3317 FcTrue, fcpattern, &fcres);
3320 * Overwrite or create the new cache entry.
3322 if(frclen >= LEN(frc)) {
3323 frclen = LEN(frc) - 1;
3324 XftFontClose(xw.dpy, frc[frclen].font);
3327 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3329 frc[frclen].flags = frcflags;
3334 FcPatternDestroy(fcpattern);
3335 FcCharSetDestroy(fccharset);
3338 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3339 xp, winy + frc[i].font->ascent,
3340 (FcChar8 *)u8c, u8cblen);
3342 xp += xw.cw * wcwidth(unicodep);
3346 * This is how the loop above actually should be. Why does the
3347 * application have to care about font details?
3349 * I have to repeat: Xft and Fontconfig are design failures.
3352 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3353 winy + font->ascent, (FcChar8 *)s, bytelen);
3356 if(base.mode & ATTR_UNDERLINE) {
3357 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3361 /* Reset clip to none. */
3362 XftDrawSetClip(xw.draw, 0);
3367 static int oldx = 0, oldy = 0;
3368 int sl, width, curx;
3369 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3371 LIMIT(oldx, 0, term.col-1);
3372 LIMIT(oldy, 0, term.row-1);
3376 /* adjust position if in dummy */
3377 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3379 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3382 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3384 /* remove the old cursor */
3385 sl = utf8len(term.line[oldy][oldx].c);
3386 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3387 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3390 /* draw the new one */
3391 if(!(IS_SET(MODE_HIDE))) {
3392 if(xw.state & WIN_FOCUSED) {
3393 if(IS_SET(MODE_REVERSE)) {
3394 g.mode |= ATTR_REVERSE;
3400 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3402 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3404 XftDrawRect(xw.draw, &dc.col[defaultcs],
3405 borderpx + curx * xw.cw,
3406 borderpx + term.c.y * xw.ch,
3408 XftDrawRect(xw.draw, &dc.col[defaultcs],
3409 borderpx + curx * xw.cw,
3410 borderpx + term.c.y * xw.ch,
3412 XftDrawRect(xw.draw, &dc.col[defaultcs],
3413 borderpx + (curx + 1) * xw.cw - 1,
3414 borderpx + term.c.y * xw.ch,
3416 XftDrawRect(xw.draw, &dc.col[defaultcs],
3417 borderpx + curx * xw.cw,
3418 borderpx + (term.c.y + 1) * xw.ch - 1,
3421 oldx = curx, oldy = term.c.y;
3427 xsettitle(char *p) {
3430 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3432 XSetWMName(xw.dpy, xw.win, &prop);
3433 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3439 xsettitle(opt_title ? opt_title : "st");
3443 redraw(int timeout) {
3444 struct timespec tv = {0, timeout * 1000};
3449 nanosleep(&tv, NULL);
3450 XSync(xw.dpy, False); /* necessary for a good tput flash */
3456 drawregion(0, 0, term.col, term.row);
3457 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3459 XSetForeground(xw.dpy, dc.gc,
3460 dc.col[IS_SET(MODE_REVERSE)?
3461 defaultfg : defaultbg].pixel);
3465 drawregion(int x1, int y1, int x2, int y2) {
3466 int ic, ib, x, y, ox, sl;
3468 char buf[DRAW_BUF_SIZ];
3469 bool ena_sel = sel.ob.x != -1;
3472 if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
3475 if(!(xw.state & WIN_VISIBLE))
3478 for(y = y1; y < y2; y++) {
3482 xtermclear(0, y, term.col, y);
3484 base = term.line[y][0];
3486 for(x = x1; x < x2; x++) {
3487 new = term.line[y][x];
3488 if(new.mode == ATTR_WDUMMY)
3490 if(ena_sel && selected(x, y))
3491 new.mode ^= ATTR_REVERSE;
3492 if(ib > 0 && (ATTRCMP(base, new)
3493 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3494 xdraws(buf, base, ox, y, ic, ib);
3502 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3503 memcpy(buf+ib, new.c, sl);
3505 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3508 xdraws(buf, base, ox, y, ic, ib);
3514 expose(XEvent *ev) {
3515 XExposeEvent *e = &ev->xexpose;
3517 if(xw.state & WIN_REDRAW) {
3519 xw.state &= ~WIN_REDRAW;
3525 visibility(XEvent *ev) {
3526 XVisibilityEvent *e = &ev->xvisibility;
3528 if(e->state == VisibilityFullyObscured) {
3529 xw.state &= ~WIN_VISIBLE;
3530 } else if(!(xw.state & WIN_VISIBLE)) {
3531 /* need a full redraw for next Expose, not just a buf copy */
3532 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3538 xw.state &= ~WIN_VISIBLE;
3542 xsetpointermotion(int set) {
3543 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3544 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3548 xseturgency(int add) {
3549 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3551 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
3552 XSetWMHints(xw.dpy, xw.win, h);
3558 XFocusChangeEvent *e = &ev->xfocus;
3560 if(e->mode == NotifyGrab)
3563 if(ev->type == FocusIn) {
3564 XSetICFocus(xw.xic);
3565 xw.state |= WIN_FOCUSED;
3567 if(IS_SET(MODE_FOCUS))
3568 ttywrite("\033[I", 3);
3570 XUnsetICFocus(xw.xic);
3571 xw.state &= ~WIN_FOCUSED;
3572 if(IS_SET(MODE_FOCUS))
3573 ttywrite("\033[O", 3);
3578 match(uint mask, uint state) {
3579 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3583 numlock(const Arg *dummy) {
3588 kmap(KeySym k, uint state) {
3592 /* Check for mapped keys out of X11 function keys. */
3593 for(i = 0; i < LEN(mappedkeys); i++) {
3594 if(mappedkeys[i] == k)
3597 if(i == LEN(mappedkeys)) {
3598 if((k & 0xFFFF) < 0xFD00)
3602 for(kp = key; kp < key + LEN(key); kp++) {
3606 if(!match(kp->mask, state))
3609 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3611 if(term.numlock && kp->appkey == 2)
3614 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3617 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3627 kpress(XEvent *ev) {
3628 XKeyEvent *e = &ev->xkey;
3630 char buf[32], *customkey;
3636 if(IS_SET(MODE_KBDLOCK))
3639 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3641 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3642 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3643 bp->func(&(bp->arg));
3648 /* 2. custom keys from config.h */
3649 if((customkey = kmap(ksym, e->state))) {
3650 ttysend(customkey, strlen(customkey));
3654 /* 3. composed string from input method */
3657 if(len == 1 && e->state & Mod1Mask) {
3658 if(IS_SET(MODE_8BIT)) {
3661 len = utf8encode(c, buf, UTF_SIZ);
3674 cmessage(XEvent *e) {
3677 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3679 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3680 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3681 xw.state |= WIN_FOCUSED;
3683 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3684 xw.state &= ~WIN_FOCUSED;
3686 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3687 /* Send SIGHUP to shell */
3694 cresize(int width, int height) {
3702 col = (xw.w - 2 * borderpx) / xw.cw;
3703 row = (xw.h - 2 * borderpx) / xw.ch;
3712 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3715 cresize(e->xconfigure.width, e->xconfigure.height);
3721 int w = xw.w, h = xw.h;
3723 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3724 struct timeval drawtimeout, *tv = NULL, now, last, lastblink;
3726 /* Waiting for window mapping */
3728 XNextEvent(xw.dpy, &ev);
3729 if(ev.type == ConfigureNotify) {
3730 w = ev.xconfigure.width;
3731 h = ev.xconfigure.height;
3732 } else if(ev.type == MapNotify) {
3741 cresize(xw.fw, xw.fh);
3743 gettimeofday(&last, NULL);
3746 for(xev = actionfps;;) {
3750 FD_SET(cmdfd, &rfd);
3753 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3756 die("select failed: %s\n", SERRNO);
3758 if(FD_ISSET(cmdfd, &rfd)) {
3761 blinkset = tattrset(ATTR_BLINK);
3763 MODBIT(term.mode, 0, MODE_BLINK);
3767 if(FD_ISSET(xfd, &rfd))
3770 gettimeofday(&now, NULL);
3771 drawtimeout.tv_sec = 0;
3772 drawtimeout.tv_usec = (1000/xfps) * 1000;
3776 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3777 tsetdirtattr(ATTR_BLINK);
3778 term.mode ^= MODE_BLINK;
3782 deltatime = TIMEDIFF(now, last);
3783 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3790 while(XPending(xw.dpy)) {
3791 XNextEvent(xw.dpy, &ev);
3792 if(XFilterEvent(&ev, None))
3794 if(handler[ev.type])
3795 (handler[ev.type])(&ev);
3801 if(xev && !FD_ISSET(xfd, &rfd))
3803 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3805 if(TIMEDIFF(now, lastblink) \
3807 drawtimeout.tv_usec = 1;
3809 drawtimeout.tv_usec = (1000 * \
3824 die("%s " VERSION " (c) 2010-2013 st engineers\n" \
3825 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3826 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3830 main(int argc, char *argv[]) {
3835 xw.fw = xw.fh = xw.fx = xw.fy = 0;
3840 allowaltscreen = false;
3843 opt_class = EARGF(usage());
3846 /* eat all remaining arguments */
3849 if(argv[1] != NULL && opt_title == NULL) {
3850 titles = xstrdup(argv[1]);
3851 opt_title = basename(titles);
3856 opt_font = EARGF(usage());
3859 bitm = XParseGeometry(EARGF(usage()), &xr, &yr, &wr, &hr);
3864 if(bitm & WidthValue)
3866 if(bitm & HeightValue)
3868 if(bitm & XNegative && xw.fx == 0)
3870 if(bitm & YNegative && xw.fy == 0)
3873 if(xw.fh != 0 && xw.fw != 0)
3877 opt_io = EARGF(usage());
3880 opt_title = EARGF(usage());
3883 opt_embed = EARGF(usage());
3891 setlocale(LC_CTYPE, "");
3892 XSetLocaleModifiers("");