1 /* See LICENSE for licence details. */
15 #include <sys/ioctl.h>
16 #include <sys/select.h>
19 #include <sys/types.h>
24 #include <X11/Xatom.h>
26 #include <X11/Xutil.h>
27 #include <X11/cursorfont.h>
28 #include <X11/keysym.h>
29 #include <X11/Xft/Xft.h>
30 #include <fontconfig/fontconfig.h>
42 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
44 #elif defined(__FreeBSD__) || defined(__DragonFly__)
50 #define XEMBED_FOCUS_IN 4
51 #define XEMBED_FOCUS_OUT 5
54 #define UTF_INVALID 0xFFFD
56 #define ESC_BUF_SIZ (128*UTF_SIZ)
57 #define ESC_ARG_SIZ 16
58 #define STR_BUF_SIZ ESC_BUF_SIZ
59 #define STR_ARG_SIZ ESC_ARG_SIZ
60 #define DRAW_BUF_SIZ 20*1024
61 #define XK_ANY_MOD UINT_MAX
63 #define XK_SWITCH_MOD (1<<13)
65 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
68 #define MIN(a, b) ((a) < (b) ? (a) : (b))
69 #define MAX(a, b) ((a) < (b) ? (b) : (a))
70 #define LEN(a) (sizeof(a) / sizeof(a)[0])
71 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
72 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
73 #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f))
74 #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
75 #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
76 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
77 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
78 #define IS_SET(flag) ((term.mode & (flag)) != 0)
79 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
80 #define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
81 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
83 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
84 #define IS_TRUECOL(x) (1 << 24 & (x))
85 #define TRUERED(x) (((x) & 0xff0000) >> 8)
86 #define TRUEGREEN(x) (((x) & 0xff00))
87 #define TRUEBLUE(x) (((x) & 0xff) << 8)
90 #define VT102ID "\033[?6c"
92 enum glyph_attribute {
104 enum cursor_movement {
122 MODE_MOUSEMOTION = 64,
127 MODE_APPCURSOR = 2048,
128 MODE_MOUSESGR = 4096,
133 MODE_MOUSEX10 = 131072,
134 MODE_MOUSEMANY = 262144,
135 MODE_BRCKTPASTE = 524288,
136 MODE_PRINT = 1048576,
137 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
154 ESC_STR = 4, /* DCS, OSC, PM, APC */
156 ESC_STR_END = 16, /* a final string was encountered */
157 ESC_TEST = 32, /* Enter in test mode */
166 enum selection_type {
171 enum selection_snap {
176 typedef unsigned char uchar;
177 typedef unsigned int uint;
178 typedef unsigned long ulong;
179 typedef unsigned short ushort;
181 typedef XftDraw *Draw;
182 typedef XftColor Color;
183 typedef Colormap Colormap;
186 char c[UTF_SIZ]; /* character code */
187 ushort mode; /* attribute flags */
188 uint32_t fg; /* foreground */
189 uint32_t bg; /* background */
195 Glyph attr; /* current char attributes */
201 /* CSI Escape sequence structs */
202 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
204 char buf[ESC_BUF_SIZ]; /* raw string */
205 int len; /* raw string length */
207 int arg[ESC_ARG_SIZ];
208 int narg; /* nb of args */
212 /* STR Escape sequence structs */
213 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
215 char type; /* ESC type ... */
216 char buf[STR_BUF_SIZ]; /* raw string */
217 int len; /* raw string length */
218 char *args[STR_ARG_SIZ];
219 int narg; /* nb of args */
222 /* Internal representation of the screen */
224 int row; /* nb row */
225 int col; /* nb col */
226 Line *line; /* screen */
227 Line *alt; /* alternate screen */
228 bool *dirty; /* dirtyness of lines */
229 TCursor c; /* cursor */
230 int top; /* top scroll limit */
231 int bot; /* bottom scroll limit */
232 int mode; /* terminal mode flags */
233 int esc; /* escape state flags */
234 char trantbl[4]; /* charset table translation */
235 int charset; /* current charset */
236 int icharset; /* selected charset for sequence */
237 bool numlock; /* lock numbers in keyboard */
241 /* Purely graphic info */
247 Atom xembed, wmdeletewin, netwmname, netwmpid;
252 XSetWindowAttributes attrs;
254 bool isfixed; /* is fixed geometry? */
255 int l, t; /* left and top offset */
256 int gm; /* geometry mask */
257 int tw, th; /* tty width and height */
258 int w, h; /* window width and height */
259 int ch; /* char height */
260 int cw; /* char width */
261 char state; /* focus, redraw, visible */
274 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
275 signed char appkey; /* application keypad */
276 signed char appcursor; /* application cursor */
277 signed char crlf; /* crlf mode */
285 * Selection variables:
286 * nb – normalized coordinates of the beginning of the selection
287 * ne – normalized coordinates of the end of the selection
288 * ob – original coordinates of the beginning of the selection
289 * oe – original coordinates of the end of the selection
298 struct timeval tclick1;
299 struct timeval tclick2;
312 void (*func)(const Arg *);
316 /* function definitions used in config.h */
317 static void clippaste(const Arg *);
318 static void numlock(const Arg *);
319 static void selpaste(const Arg *);
320 static void xzoom(const Arg *);
321 static void printsel(const Arg *);
322 static void printscreen(const Arg *) ;
323 static void toggleprinter(const Arg *);
325 /* Config.h for applying patches and the configuration. */
341 /* Drawing Context */
343 Color col[MAX(LEN(colorname), 256)];
344 Font font, bfont, ifont, ibfont;
348 static void die(const char *, ...);
349 static void draw(void);
350 static void redraw(int);
351 static void drawregion(int, int, int, int);
352 static void execsh(void);
353 static void sigchld(int);
354 static void run(void);
356 static void csidump(void);
357 static void csihandle(void);
358 static void csiparse(void);
359 static void csireset(void);
360 static void strdump(void);
361 static void strhandle(void);
362 static void strparse(void);
363 static void strreset(void);
365 static int tattrset(int);
366 static void tprinter(char *, size_t);
367 static void tdumpsel(void);
368 static void tdumpline(int);
369 static void tdump(void);
370 static void tclearregion(int, int, int, int);
371 static void tcursor(int);
372 static void tdeletechar(int);
373 static void tdeleteline(int);
374 static void tinsertblank(int);
375 static void tinsertblankline(int);
376 static void tmoveto(int, int);
377 static void tmoveato(int, int);
378 static void tnew(int, int);
379 static void tnewline(int);
380 static void tputtab(int);
381 static void tputc(char *, int);
382 static void treset(void);
383 static int tresize(int, int);
384 static void tscrollup(int, int);
385 static void tscrolldown(int, int);
386 static void tsetattr(int *, int);
387 static void tsetchar(char *, Glyph *, int, int);
388 static void tsetscroll(int, int);
389 static void tswapscreen(void);
390 static void tsetdirt(int, int);
391 static void tsetdirtattr(int);
392 static void tsetmode(bool, bool, int *, int);
393 static void tfulldirt(void);
394 static void techo(char *, int);
395 static void tcontrolcode(uchar );
396 static void tdectest(char );
397 static int32_t tdefcolor(int *, int *, int);
398 static void tdeftran(char);
399 static inline bool match(uint, uint);
400 static void ttynew(void);
401 static void ttyread(void);
402 static void ttyresize(void);
403 static void ttysend(char *, size_t);
404 static void ttywrite(const char *, size_t);
406 static void xdraws(char *, Glyph, int, int, int, int);
407 static void xhints(void);
408 static void xclear(int, int, int, int);
409 static void xdrawcursor(void);
410 static void xinit(void);
411 static void xloadcols(void);
412 static int xsetcolorname(int, const char *);
413 static int xgeommasktogravity(int);
414 static int xloadfont(Font *, FcPattern *);
415 static void xloadfonts(char *, double);
416 static int xloadfontset(Font *);
417 static void xsettitle(char *);
418 static void xresettitle(void);
419 static void xsetpointermotion(int);
420 static void xseturgency(int);
421 static void xsetsel(char *);
422 static void xtermclear(int, int, int, int);
423 static void xunloadfont(Font *);
424 static void xunloadfonts(void);
425 static void xresize(int, int);
427 static void expose(XEvent *);
428 static void visibility(XEvent *);
429 static void unmap(XEvent *);
430 static char *kmap(KeySym, uint);
431 static void kpress(XEvent *);
432 static void cmessage(XEvent *);
433 static void cresize(int, int);
434 static void resize(XEvent *);
435 static void focus(XEvent *);
436 static void brelease(XEvent *);
437 static void bpress(XEvent *);
438 static void bmotion(XEvent *);
439 static void selnotify(XEvent *);
440 static void selclear(XEvent *);
441 static void selrequest(XEvent *);
443 static void selinit(void);
444 static void selnormalize(void);
445 static inline bool selected(int, int);
446 static char *getsel(void);
447 static void selcopy(void);
448 static void selscroll(int, int);
449 static void selsnap(int, int *, int *, int);
450 static void getbuttoninfo(XEvent *);
451 static void mousereport(XEvent *);
453 static size_t utf8decode(char *, long *, size_t);
454 static long utf8decodebyte(char, size_t *);
455 static size_t utf8encode(long, char *, size_t);
456 static char utf8encodebyte(long, size_t);
457 static size_t utf8len(char *);
458 static size_t utf8validate(long *, size_t);
460 static ssize_t xwrite(int, const char *, size_t);
461 static void *xmalloc(size_t);
462 static void *xrealloc(void *, size_t);
463 static char *xstrdup(char *);
465 static void usage(void);
467 static void (*handler[LASTEvent])(XEvent *) = {
469 [ClientMessage] = cmessage,
470 [ConfigureNotify] = resize,
471 [VisibilityNotify] = visibility,
472 [UnmapNotify] = unmap,
476 [MotionNotify] = bmotion,
477 [ButtonPress] = bpress,
478 [ButtonRelease] = brelease,
479 [SelectionClear] = selclear,
480 [SelectionNotify] = selnotify,
481 [SelectionRequest] = selrequest,
488 static CSIEscape csiescseq;
489 static STREscape strescseq;
492 static Selection sel;
493 static int iofd = STDOUT_FILENO;
494 static char **opt_cmd = NULL;
495 static char *opt_io = NULL;
496 static char *opt_title = NULL;
497 static char *opt_embed = NULL;
498 static char *opt_class = NULL;
499 static char *opt_font = NULL;
500 static int oldbutton = 3; /* button event on startup: 3 = release */
502 static char *usedfont = NULL;
503 static double usedfontsize = 0;
505 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
506 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
507 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
508 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
510 /* Font Ring Cache */
523 /* Fontcache is an array now. A new font will be appended to the array. */
524 static Fontcache frc[16];
525 static int frclen = 0;
528 xwrite(int fd, const char *s, size_t len) {
532 ssize_t r = write(fd, s, len);
542 xmalloc(size_t len) {
543 void *p = malloc(len);
546 die("Out of memory\n");
552 xrealloc(void *p, size_t len) {
553 if((p = realloc(p, len)) == NULL)
554 die("Out of memory\n");
561 if((s = strdup(s)) == NULL)
562 die("Out of memory\n");
568 utf8decode(char *c, long *u, size_t clen) {
569 size_t i, j, len, type;
575 udecoded = utf8decodebyte(c[0], &len);
576 if(!BETWEEN(len, 1, UTF_SIZ))
578 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
579 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
586 utf8validate(u, len);
591 utf8decodebyte(char c, size_t *i) {
592 for(*i = 0; *i < LEN(utfmask); ++(*i))
593 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
594 return (uchar)c & ~utfmask[*i];
599 utf8encode(long u, char *c, size_t clen) {
602 len = utf8validate(&u, 0);
605 for(i = len - 1; i != 0; --i) {
606 c[i] = utf8encodebyte(u, 0);
609 c[0] = utf8encodebyte(u, len);
614 utf8encodebyte(long u, size_t i) {
615 return utfbyte[i] | (u & ~utfmask[i]);
620 return utf8decode(c, &(long){0}, UTF_SIZ);
624 utf8validate(long *u, size_t i) {
625 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
627 for(i = 1; *u > utfmax[i]; ++i)
634 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
635 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
639 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
640 if(sel.xtarget == None)
641 sel.xtarget = XA_STRING;
649 return LIMIT(x, 0, term.col-1);
657 return LIMIT(y, 0, term.row-1);
660 static int tlinelen(int y) {
663 while (i > 0 && term.line[y][i - 1].c[0] == ' ')
673 if(sel.ob.y == sel.oe.y) {
674 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
675 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
677 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
678 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
680 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
681 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
683 /* expand selection over line breaks */
684 if (sel.type == SEL_RECTANGULAR)
686 i = tlinelen(sel.nb.y);
689 if (tlinelen(sel.ne.y) <= sel.ne.x)
690 sel.ne.x = term.col - 1;
694 selected(int x, int y) {
695 if(sel.type == SEL_RECTANGULAR)
696 return BETWEEN(y, sel.nb.y, sel.ne.y)
697 && BETWEEN(x, sel.nb.x, sel.ne.x);
699 return BETWEEN(y, sel.nb.y, sel.ne.y)
700 && (y != sel.nb.y || x >= sel.nb.x)
701 && (y != sel.ne.y || x <= sel.ne.x);
705 selsnap(int mode, int *x, int *y, int direction) {
709 * Snap around if the word wraps around at the end or
710 * beginning of a line.
713 if(direction < 0 && *x <= 0) {
714 if(*y > 0 && term.line[*y - 1][term.col-1].mode
722 if(direction > 0 && *x >= term.col-1) {
723 if(*y < term.row-1 && term.line[*y][*x].mode
732 if(term.line[*y][*x+direction].mode & ATTR_WDUMMY) {
737 if(*x >= tlinelen(*y) || strchr(worddelimiters,
738 term.line[*y][*x+direction].c[0])) {
747 * Snap around if the the previous line or the current one
748 * has set ATTR_WRAP at its end. Then the whole next or
749 * previous line will be selected.
751 *x = (direction < 0) ? 0 : term.col - 1;
752 if(direction < 0 && *y > 0) {
753 for(; *y > 0; *y += direction) {
754 if(!(term.line[*y-1][term.col-1].mode
759 } else if(direction > 0 && *y < term.row-1) {
760 for(; *y < term.row; *y += direction) {
761 if(!(term.line[*y][term.col-1].mode
772 getbuttoninfo(XEvent *e) {
774 uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
776 sel.alt = IS_SET(MODE_ALTSCREEN);
778 sel.oe.x = x2col(e->xbutton.x);
779 sel.oe.y = y2row(e->xbutton.y);
781 if(sel.ob.y < sel.oe.y
782 || (sel.ob.y == sel.oe.y && sel.ob.x < sel.oe.x)) {
783 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
784 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
786 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
787 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
791 sel.type = SEL_REGULAR;
792 for(type = 1; type < LEN(selmasks); ++type) {
793 if(match(selmasks[type], state)) {
801 mousereport(XEvent *e) {
802 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
803 button = e->xbutton.button, state = e->xbutton.state,
809 if(e->xbutton.type == MotionNotify) {
810 if(x == ox && y == oy)
812 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
814 /* MOUSE_MOTION: no reporting if no button is pressed */
815 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
818 button = oldbutton + 32;
822 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
829 if(e->xbutton.type == ButtonPress) {
833 } else if(e->xbutton.type == ButtonRelease) {
835 /* MODE_MOUSEX10: no button release reporting */
836 if(IS_SET(MODE_MOUSEX10))
838 if (button == 64 || button == 65)
843 if(!IS_SET(MODE_MOUSEX10)) {
844 button += (state & ShiftMask ? 4 : 0)
845 + (state & Mod4Mask ? 8 : 0)
846 + (state & ControlMask ? 16 : 0);
850 if(IS_SET(MODE_MOUSESGR)) {
851 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
853 e->xbutton.type == ButtonRelease ? 'm' : 'M');
854 } else if(x < 223 && y < 223) {
855 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
856 32+button, 32+x+1, 32+y+1);
869 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
874 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
875 if(e->xbutton.button == mk->b
876 && match(mk->mask, e->xbutton.state)) {
877 ttysend(mk->s, strlen(mk->s));
882 if(e->xbutton.button == Button1) {
883 gettimeofday(&now, NULL);
885 /* Clear previous selection, logically and visually. */
888 sel.type = SEL_REGULAR;
889 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
890 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
893 * If the user clicks below predefined timeouts specific
894 * snapping behaviour is exposed.
896 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
897 sel.snap = SNAP_LINE;
898 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
899 sel.snap = SNAP_WORD;
903 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
904 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
908 * Draw selection, unless it's regular and we don't want to
909 * make clicks visible
913 tsetdirt(sel.nb.y, sel.ne.y);
915 sel.tclick2 = sel.tclick1;
923 int x, y, bufsize, size, ex;
929 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
930 ptr = str = xmalloc(bufsize);
932 /* append every set & selected glyph to the selection */
933 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
934 gp = &term.line[y][0];
935 last = &gp[term.col-1];
937 while(last >= gp && !(selected(last - gp, y) &&
938 strcmp(last->c, " ") != 0)) {
942 for(x = 0; gp <= last; x++, ++gp) {
943 if(!selected(x, y) || (gp->mode & ATTR_WDUMMY))
946 size = utf8len(gp->c);
947 memcpy(ptr, gp->c, size);
952 * Copy and pasting of line endings is inconsistent
953 * in the inconsistent terminal and GUI world.
954 * The best solution seems like to produce '\n' when
955 * something is copied from st and convert '\n' to
956 * '\r', when something to be pasted is received by
958 * FIXME: Fix the computer world.
960 if(y < sel.ne.y && !(x > 0 && (gp-1)->mode & ATTR_WRAP))
964 * If the last selected line expands in the selection
965 * after the visible text '\n' is appended.
969 if(sel.nb.y == sel.ne.y && sel.ne.x < sel.nb.x)
985 selnotify(XEvent *e) {
986 ulong nitems, ofs, rem;
988 uchar *data, *last, *repl;
993 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
994 False, AnyPropertyType, &type, &format,
995 &nitems, &rem, &data)) {
996 fprintf(stderr, "Clipboard allocation failed\n");
1001 * As seen in getsel:
1002 * Line endings are inconsistent in the terminal and GUI world
1003 * copy and pasting. When receiving some selection data,
1004 * replace all '\n' with '\r'.
1005 * FIXME: Fix the computer world.
1008 last = data + nitems * format / 8;
1009 while((repl = memchr(repl, '\n', last - repl))) {
1013 if(IS_SET(MODE_BRCKTPASTE))
1014 ttywrite("\033[200~", 6);
1015 ttysend((char *)data, nitems * format / 8);
1016 if(IS_SET(MODE_BRCKTPASTE))
1017 ttywrite("\033[201~", 6);
1019 /* number of 32-bit chunks returned */
1020 ofs += nitems * format / 32;
1025 selpaste(const Arg *dummy) {
1026 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1027 xw.win, CurrentTime);
1031 clippaste(const Arg *dummy) {
1034 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1035 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
1036 xw.win, CurrentTime);
1040 selclear(XEvent *e) {
1044 tsetdirt(sel.nb.y, sel.ne.y);
1048 selrequest(XEvent *e) {
1049 XSelectionRequestEvent *xsre;
1050 XSelectionEvent xev;
1051 Atom xa_targets, string;
1053 xsre = (XSelectionRequestEvent *) e;
1054 xev.type = SelectionNotify;
1055 xev.requestor = xsre->requestor;
1056 xev.selection = xsre->selection;
1057 xev.target = xsre->target;
1058 xev.time = xsre->time;
1060 xev.property = None;
1062 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1063 if(xsre->target == xa_targets) {
1064 /* respond with the supported type */
1065 string = sel.xtarget;
1066 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1067 XA_ATOM, 32, PropModeReplace,
1068 (uchar *) &string, 1);
1069 xev.property = xsre->property;
1070 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
1071 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1072 xsre->target, 8, PropModeReplace,
1073 (uchar *) sel.clip, strlen(sel.clip));
1074 xev.property = xsre->property;
1077 /* all done, send a notification to the listener */
1078 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1079 fprintf(stderr, "Error sending SelectionNotify event\n");
1083 xsetsel(char *str) {
1084 /* register the selection for both the clipboard and the primary */
1090 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1092 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1093 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1097 brelease(XEvent *e) {
1098 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1103 if(e->xbutton.button == Button2) {
1105 } else if(e->xbutton.button == Button1) {
1113 tsetdirt(sel.nb.y, sel.ne.y);
1118 bmotion(XEvent *e) {
1119 int oldey, oldex, oldsby, oldsey;
1121 if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
1136 if(oldey != sel.oe.y || oldex != sel.oe.x)
1137 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1141 die(const char *errstr, ...) {
1144 va_start(ap, errstr);
1145 vfprintf(stderr, errstr, ap);
1153 char *envshell = getenv("SHELL");
1154 const struct passwd *pass = getpwuid(getuid());
1155 char buf[sizeof(long) * 8 + 1];
1157 unsetenv("COLUMNS");
1159 unsetenv("TERMCAP");
1162 setenv("LOGNAME", pass->pw_name, 1);
1163 setenv("USER", pass->pw_name, 1);
1164 setenv("SHELL", pass->pw_shell, 0);
1165 setenv("HOME", pass->pw_dir, 0);
1168 snprintf(buf, sizeof(buf), "%lu", xw.win);
1169 setenv("WINDOWID", buf, 1);
1171 signal(SIGCHLD, SIG_DFL);
1172 signal(SIGHUP, SIG_DFL);
1173 signal(SIGINT, SIG_DFL);
1174 signal(SIGQUIT, SIG_DFL);
1175 signal(SIGTERM, SIG_DFL);
1176 signal(SIGALRM, SIG_DFL);
1178 DEFAULT(envshell, shell);
1179 setenv("TERM", termname, 1);
1180 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
1181 execvp(args[0], args);
1189 if(waitpid(pid, &stat, 0) < 0)
1190 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1192 if(WIFEXITED(stat)) {
1193 exit(WEXITSTATUS(stat));
1202 struct winsize w = {term.row, term.col, 0, 0};
1204 /* seems to work fine on linux, openbsd and freebsd */
1205 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1206 die("openpty failed: %s\n", strerror(errno));
1208 switch(pid = fork()) {
1210 die("fork failed\n");
1213 setsid(); /* create a new process group */
1214 dup2(s, STDIN_FILENO);
1215 dup2(s, STDOUT_FILENO);
1216 dup2(s, STDERR_FILENO);
1217 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1218 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1226 signal(SIGCHLD, sigchld);
1228 term.mode |= MODE_PRINT;
1229 iofd = (!strcmp(opt_io, "-")) ?
1231 open(opt_io, O_WRONLY | O_CREAT, 0666);
1233 fprintf(stderr, "Error opening %s:%s\n",
1234 opt_io, strerror(errno));
1243 static char buf[BUFSIZ];
1244 static int buflen = 0;
1247 int charsize; /* size of utf8 char in bytes */
1251 /* append read bytes to unprocessed bytes */
1252 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1253 die("Couldn't read from shell: %s\n", strerror(errno));
1255 /* process every complete utf8 char */
1258 while((charsize = utf8decode(ptr, &unicodep, buflen))) {
1259 utf8encode(unicodep, s, UTF_SIZ);
1265 /* keep any uncomplete utf8 char for the next call */
1266 memmove(buf, ptr, buflen);
1270 ttywrite(const char *s, size_t n) {
1271 if(xwrite(cmdfd, s, n) == -1)
1272 die("write error on tty: %s\n", strerror(errno));
1276 ttysend(char *s, size_t n) {
1278 if(IS_SET(MODE_ECHO))
1286 w.ws_row = term.row;
1287 w.ws_col = term.col;
1288 w.ws_xpixel = xw.tw;
1289 w.ws_ypixel = xw.th;
1290 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1291 fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
1295 tattrset(int attr) {
1298 for(i = 0; i < term.row-1; i++) {
1299 for(j = 0; j < term.col-1; j++) {
1300 if(term.line[i][j].mode & attr)
1309 tsetdirt(int top, int bot) {
1312 LIMIT(top, 0, term.row-1);
1313 LIMIT(bot, 0, term.row-1);
1315 for(i = top; i <= bot; i++)
1320 tsetdirtattr(int attr) {
1323 for(i = 0; i < term.row-1; i++) {
1324 for(j = 0; j < term.col-1; j++) {
1325 if(term.line[i][j].mode & attr) {
1335 tsetdirt(0, term.row-1);
1340 static TCursor c[2];
1341 bool alt = IS_SET(MODE_ALTSCREEN);
1343 if(mode == CURSOR_SAVE) {
1345 } else if(mode == CURSOR_LOAD) {
1347 tmoveto(c[alt].x, c[alt].y);
1355 term.c = (TCursor){{
1359 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
1361 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1362 for(i = tabspaces; i < term.col; i += tabspaces)
1365 term.bot = term.row - 1;
1366 term.mode = MODE_WRAP;
1367 memset(term.trantbl, sizeof(term.trantbl), CS_USA);
1370 tclearregion(0, 0, term.col-1, term.row-1);
1372 tcursor(CURSOR_SAVE);
1376 tnew(int col, int row) {
1377 term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
1386 Line *tmp = term.line;
1388 term.line = term.alt;
1390 term.mode ^= MODE_ALTSCREEN;
1395 tscrolldown(int orig, int n) {
1399 LIMIT(n, 0, term.bot-orig+1);
1401 tsetdirt(orig, term.bot-n);
1402 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1404 for(i = term.bot; i >= orig+n; i--) {
1405 temp = term.line[i];
1406 term.line[i] = term.line[i-n];
1407 term.line[i-n] = temp;
1414 tscrollup(int orig, int n) {
1418 LIMIT(n, 0, term.bot-orig+1);
1420 tclearregion(0, orig, term.col-1, orig+n-1);
1421 tsetdirt(orig+n, term.bot);
1423 for(i = orig; i <= term.bot-n; i++) {
1424 temp = term.line[i];
1425 term.line[i] = term.line[i+n];
1426 term.line[i+n] = temp;
1429 selscroll(orig, -n);
1433 selscroll(int orig, int n) {
1437 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1438 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1442 if(sel.type == SEL_RECTANGULAR) {
1443 if(sel.ob.y < term.top)
1444 sel.ob.y = term.top;
1445 if(sel.oe.y > term.bot)
1446 sel.oe.y = term.bot;
1448 if(sel.ob.y < term.top) {
1449 sel.ob.y = term.top;
1452 if(sel.oe.y > term.bot) {
1453 sel.oe.y = term.bot;
1454 sel.oe.x = term.col;
1462 tnewline(int first_col) {
1466 tscrollup(term.top, 1);
1470 tmoveto(first_col ? 0 : term.c.x, y);
1475 char *p = csiescseq.buf, *np;
1484 csiescseq.buf[csiescseq.len] = '\0';
1485 while(p < csiescseq.buf+csiescseq.len) {
1487 v = strtol(p, &np, 10);
1490 if(v == LONG_MAX || v == LONG_MIN)
1492 csiescseq.arg[csiescseq.narg++] = v;
1494 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1498 csiescseq.mode = *p;
1501 /* for absolute user moves, when decom is set */
1503 tmoveato(int x, int y) {
1504 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1508 tmoveto(int x, int y) {
1511 if(term.c.state & CURSOR_ORIGIN) {
1516 maxy = term.row - 1;
1518 LIMIT(x, 0, term.col-1);
1519 LIMIT(y, miny, maxy);
1520 term.c.state &= ~CURSOR_WRAPNEXT;
1526 tsetchar(char *c, Glyph *attr, int x, int y) {
1527 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1528 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1529 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1530 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1531 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1532 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1533 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1534 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1535 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1539 * The table is proudly stolen from rxvt.
1541 if(term.trantbl[term.charset] == CS_GRAPHIC0) {
1542 if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
1543 c = vt100_0[c[0] - 0x41];
1547 if(term.line[y][x].mode & ATTR_WIDE) {
1548 if(x+1 < term.col) {
1549 term.line[y][x+1].c[0] = ' ';
1550 term.line[y][x+1].mode &= ~ATTR_WDUMMY;
1552 } else if(term.line[y][x].mode & ATTR_WDUMMY) {
1553 term.line[y][x-1].c[0] = ' ';
1554 term.line[y][x-1].mode &= ~ATTR_WIDE;
1558 term.line[y][x] = *attr;
1559 memcpy(term.line[y][x].c, c, UTF_SIZ);
1563 tclearregion(int x1, int y1, int x2, int y2) {
1567 temp = x1, x1 = x2, x2 = temp;
1569 temp = y1, y1 = y2, y2 = temp;
1571 LIMIT(x1, 0, term.col-1);
1572 LIMIT(x2, 0, term.col-1);
1573 LIMIT(y1, 0, term.row-1);
1574 LIMIT(y2, 0, term.row-1);
1576 for(y = y1; y <= y2; y++) {
1578 for(x = x1; x <= x2; x++) {
1581 term.line[y][x] = term.c.attr;
1582 memcpy(term.line[y][x].c, " ", 2);
1588 tdeletechar(int n) {
1592 LIMIT(n, 0, term.col - term.c.x);
1596 size = term.col - src;
1597 line = term.line[term.c.y];
1599 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1600 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1604 tinsertblank(int n) {
1608 LIMIT(n, 0, term.col - term.c.x);
1612 size = term.col - dst;
1613 line = term.line[term.c.y];
1615 memmove(&line[dst], &line[src], size * sizeof(Glyph));
1616 tclearregion(src, term.c.y, dst - 1, term.c.y);
1620 tinsertblankline(int n) {
1621 if(BETWEEN(term.c.y, term.top, term.bot))
1622 tscrolldown(term.c.y, n);
1626 tdeleteline(int n) {
1627 if(BETWEEN(term.c.y, term.top, term.bot))
1628 tscrollup(term.c.y, n);
1632 tdefcolor(int *attr, int *npar, int l) {
1636 switch (attr[*npar + 1]) {
1637 case 2: /* direct color in RGB space */
1638 if (*npar + 4 >= l) {
1640 "erresc(38): Incorrect number of parameters (%d)\n",
1644 r = attr[*npar + 2];
1645 g = attr[*npar + 3];
1646 b = attr[*npar + 4];
1648 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1649 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1652 idx = TRUECOLOR(r, g, b);
1654 case 5: /* indexed color */
1655 if (*npar + 2 >= l) {
1657 "erresc(38): Incorrect number of parameters (%d)\n",
1662 if(!BETWEEN(attr[*npar], 0, 255))
1663 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1667 case 0: /* implemented defined (only foreground) */
1668 case 1: /* transparent */
1669 case 3: /* direct color in CMY space */
1670 case 4: /* direct color in CMYK space */
1673 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1681 tsetattr(int *attr, int l) {
1685 for(i = 0; i < l; i++) {
1688 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
1689 | ATTR_BOLD | ATTR_ITALIC \
1691 term.c.attr.fg = defaultfg;
1692 term.c.attr.bg = defaultbg;
1695 term.c.attr.mode |= ATTR_BOLD;
1698 term.c.attr.mode |= ATTR_ITALIC;
1701 term.c.attr.mode |= ATTR_UNDERLINE;
1703 case 5: /* slow blink */
1704 case 6: /* rapid blink */
1705 term.c.attr.mode |= ATTR_BLINK;
1708 term.c.attr.mode |= ATTR_REVERSE;
1712 term.c.attr.mode &= ~ATTR_BOLD;
1715 term.c.attr.mode &= ~ATTR_ITALIC;
1718 term.c.attr.mode &= ~ATTR_UNDERLINE;
1722 term.c.attr.mode &= ~ATTR_BLINK;
1725 term.c.attr.mode &= ~ATTR_REVERSE;
1728 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1729 term.c.attr.fg = idx;
1732 term.c.attr.fg = defaultfg;
1735 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1736 term.c.attr.bg = idx;
1739 term.c.attr.bg = defaultbg;
1742 if(BETWEEN(attr[i], 30, 37)) {
1743 term.c.attr.fg = attr[i] - 30;
1744 } else if(BETWEEN(attr[i], 40, 47)) {
1745 term.c.attr.bg = attr[i] - 40;
1746 } else if(BETWEEN(attr[i], 90, 97)) {
1747 term.c.attr.fg = attr[i] - 90 + 8;
1748 } else if(BETWEEN(attr[i], 100, 107)) {
1749 term.c.attr.bg = attr[i] - 100 + 8;
1752 "erresc(default): gfx attr %d unknown\n",
1753 attr[i]), csidump();
1761 tsetscroll(int t, int b) {
1764 LIMIT(t, 0, term.row-1);
1765 LIMIT(b, 0, term.row-1);
1776 tsetmode(bool priv, bool set, int *args, int narg) {
1780 for(lim = args + narg; args < lim; ++args) {
1783 case 1: /* DECCKM -- Cursor key */
1784 MODBIT(term.mode, set, MODE_APPCURSOR);
1786 case 5: /* DECSCNM -- Reverse video */
1788 MODBIT(term.mode, set, MODE_REVERSE);
1789 if(mode != term.mode)
1790 redraw(REDRAW_TIMEOUT);
1792 case 6: /* DECOM -- Origin */
1793 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1796 case 7: /* DECAWM -- Auto wrap */
1797 MODBIT(term.mode, set, MODE_WRAP);
1799 case 0: /* Error (IGNORED) */
1800 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1801 case 3: /* DECCOLM -- Column (IGNORED) */
1802 case 4: /* DECSCLM -- Scroll (IGNORED) */
1803 case 8: /* DECARM -- Auto repeat (IGNORED) */
1804 case 18: /* DECPFF -- Printer feed (IGNORED) */
1805 case 19: /* DECPEX -- Printer extent (IGNORED) */
1806 case 42: /* DECNRCM -- National characters (IGNORED) */
1807 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1809 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1810 MODBIT(term.mode, !set, MODE_HIDE);
1812 case 9: /* X10 mouse compatibility mode */
1813 xsetpointermotion(0);
1814 MODBIT(term.mode, 0, MODE_MOUSE);
1815 MODBIT(term.mode, set, MODE_MOUSEX10);
1817 case 1000: /* 1000: report button press */
1818 xsetpointermotion(0);
1819 MODBIT(term.mode, 0, MODE_MOUSE);
1820 MODBIT(term.mode, set, MODE_MOUSEBTN);
1822 case 1002: /* 1002: report motion on button press */
1823 xsetpointermotion(0);
1824 MODBIT(term.mode, 0, MODE_MOUSE);
1825 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1827 case 1003: /* 1003: enable all mouse motions */
1828 xsetpointermotion(set);
1829 MODBIT(term.mode, 0, MODE_MOUSE);
1830 MODBIT(term.mode, set, MODE_MOUSEMANY);
1832 case 1004: /* 1004: send focus events to tty */
1833 MODBIT(term.mode, set, MODE_FOCUS);
1835 case 1006: /* 1006: extended reporting mode */
1836 MODBIT(term.mode, set, MODE_MOUSESGR);
1839 MODBIT(term.mode, set, MODE_8BIT);
1841 case 1049: /* swap screen & set/restore cursor as xterm */
1842 if (!allowaltscreen)
1844 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1846 case 47: /* swap screen */
1848 if (!allowaltscreen)
1850 alt = IS_SET(MODE_ALTSCREEN);
1852 tclearregion(0, 0, term.col-1,
1855 if(set ^ alt) /* set is always 1 or 0 */
1861 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1863 case 2004: /* 2004: bracketed paste mode */
1864 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1866 /* Not implemented mouse modes. See comments there. */
1867 case 1001: /* mouse highlight mode; can hang the
1868 terminal by design when implemented. */
1869 case 1005: /* UTF-8 mouse mode; will confuse
1870 applications not supporting UTF-8
1872 case 1015: /* urxvt mangled mouse mode; incompatible
1873 and can be mistaken for other control
1877 "erresc: unknown private set/reset mode %d\n",
1883 case 0: /* Error (IGNORED) */
1885 case 2: /* KAM -- keyboard action */
1886 MODBIT(term.mode, set, MODE_KBDLOCK);
1888 case 4: /* IRM -- Insertion-replacement */
1889 MODBIT(term.mode, set, MODE_INSERT);
1891 case 12: /* SRM -- Send/Receive */
1892 MODBIT(term.mode, !set, MODE_ECHO);
1894 case 20: /* LNM -- Linefeed/new line */
1895 MODBIT(term.mode, set, MODE_CRLF);
1899 "erresc: unknown set/reset mode %d\n",
1912 switch(csiescseq.mode) {
1915 fprintf(stderr, "erresc: unknown csi ");
1919 case '@': /* ICH -- Insert <n> blank char */
1920 DEFAULT(csiescseq.arg[0], 1);
1921 tinsertblank(csiescseq.arg[0]);
1923 case 'A': /* CUU -- Cursor <n> Up */
1924 DEFAULT(csiescseq.arg[0], 1);
1925 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1927 case 'B': /* CUD -- Cursor <n> Down */
1928 case 'e': /* VPR --Cursor <n> Down */
1929 DEFAULT(csiescseq.arg[0], 1);
1930 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1932 case 'i': /* MC -- Media Copy */
1933 switch(csiescseq.arg[0]) {
1938 tdumpline(term.c.y);
1944 term.mode &= ~MODE_PRINT;
1947 term.mode |= MODE_PRINT;
1951 case 'c': /* DA -- Device Attributes */
1952 if(csiescseq.arg[0] == 0)
1953 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1955 case 'C': /* CUF -- Cursor <n> Forward */
1956 case 'a': /* HPR -- Cursor <n> Forward */
1957 DEFAULT(csiescseq.arg[0], 1);
1958 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1960 case 'D': /* CUB -- Cursor <n> Backward */
1961 DEFAULT(csiescseq.arg[0], 1);
1962 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1964 case 'E': /* CNL -- Cursor <n> Down and first col */
1965 DEFAULT(csiescseq.arg[0], 1);
1966 tmoveto(0, term.c.y+csiescseq.arg[0]);
1968 case 'F': /* CPL -- Cursor <n> Up and first col */
1969 DEFAULT(csiescseq.arg[0], 1);
1970 tmoveto(0, term.c.y-csiescseq.arg[0]);
1972 case 'g': /* TBC -- Tabulation clear */
1973 switch(csiescseq.arg[0]) {
1974 case 0: /* clear current tab stop */
1975 term.tabs[term.c.x] = 0;
1977 case 3: /* clear all the tabs */
1978 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1984 case 'G': /* CHA -- Move to <col> */
1986 DEFAULT(csiescseq.arg[0], 1);
1987 tmoveto(csiescseq.arg[0]-1, term.c.y);
1989 case 'H': /* CUP -- Move to <row> <col> */
1991 DEFAULT(csiescseq.arg[0], 1);
1992 DEFAULT(csiescseq.arg[1], 1);
1993 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1995 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1996 DEFAULT(csiescseq.arg[0], 1);
1997 tputtab(csiescseq.arg[0]);
1999 case 'J': /* ED -- Clear screen */
2001 switch(csiescseq.arg[0]) {
2003 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2004 if(term.c.y < term.row-1) {
2005 tclearregion(0, term.c.y+1, term.col-1,
2011 tclearregion(0, 0, term.col-1, term.c.y-1);
2012 tclearregion(0, term.c.y, term.c.x, term.c.y);
2015 tclearregion(0, 0, term.col-1, term.row-1);
2021 case 'K': /* EL -- Clear line */
2022 switch(csiescseq.arg[0]) {
2024 tclearregion(term.c.x, term.c.y, term.col-1,
2028 tclearregion(0, term.c.y, term.c.x, term.c.y);
2031 tclearregion(0, term.c.y, term.col-1, term.c.y);
2035 case 'S': /* SU -- Scroll <n> line up */
2036 DEFAULT(csiescseq.arg[0], 1);
2037 tscrollup(term.top, csiescseq.arg[0]);
2039 case 'T': /* SD -- Scroll <n> line down */
2040 DEFAULT(csiescseq.arg[0], 1);
2041 tscrolldown(term.top, csiescseq.arg[0]);
2043 case 'L': /* IL -- Insert <n> blank lines */
2044 DEFAULT(csiescseq.arg[0], 1);
2045 tinsertblankline(csiescseq.arg[0]);
2047 case 'l': /* RM -- Reset Mode */
2048 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2050 case 'M': /* DL -- Delete <n> lines */
2051 DEFAULT(csiescseq.arg[0], 1);
2052 tdeleteline(csiescseq.arg[0]);
2054 case 'X': /* ECH -- Erase <n> char */
2055 DEFAULT(csiescseq.arg[0], 1);
2056 tclearregion(term.c.x, term.c.y,
2057 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2059 case 'P': /* DCH -- Delete <n> char */
2060 DEFAULT(csiescseq.arg[0], 1);
2061 tdeletechar(csiescseq.arg[0]);
2063 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2064 DEFAULT(csiescseq.arg[0], 1);
2065 tputtab(-csiescseq.arg[0]);
2067 case 'd': /* VPA -- Move to <row> */
2068 DEFAULT(csiescseq.arg[0], 1);
2069 tmoveato(term.c.x, csiescseq.arg[0]-1);
2071 case 'h': /* SM -- Set terminal mode */
2072 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2074 case 'm': /* SGR -- Terminal attribute (color) */
2075 tsetattr(csiescseq.arg, csiescseq.narg);
2077 case 'n': /* DSR – Device Status Report (cursor position) */
2078 if (csiescseq.arg[0] == 6) {
2079 len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
2080 term.c.y+1, term.c.x+1);
2084 case 'r': /* DECSTBM -- Set Scrolling Region */
2085 if(csiescseq.priv) {
2088 DEFAULT(csiescseq.arg[0], 1);
2089 DEFAULT(csiescseq.arg[1], term.row);
2090 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2094 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2095 tcursor(CURSOR_SAVE);
2097 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2098 tcursor(CURSOR_LOAD);
2109 for(i = 0; i < csiescseq.len; i++) {
2110 c = csiescseq.buf[i] & 0xff;
2113 } else if(c == '\n') {
2115 } else if(c == '\r') {
2117 } else if(c == 0x1b) {
2120 printf("(%02x)", c);
2128 memset(&csiescseq, 0, sizeof(csiescseq));
2136 term.esc &= ~(ESC_STR_END|ESC_STR);
2138 narg = strescseq.narg;
2139 par = atoi(strescseq.args[0]);
2141 switch(strescseq.type) {
2142 case ']': /* OSC -- Operating System Command */
2148 xsettitle(strescseq.args[1]);
2150 case 4: /* color set */
2153 p = strescseq.args[2];
2155 case 104: /* color reset, here p = NULL */
2156 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2157 if(xsetcolorname(j, p)) {
2158 fprintf(stderr, "erresc: invalid color %s\n", p);
2161 * TODO if defaultbg color is changed, borders
2169 case 'k': /* old title set compatibility */
2170 xsettitle(strescseq.args[0]);
2172 case 'P': /* DCS -- Device Control String */
2173 case '_': /* APC -- Application Program Command */
2174 case '^': /* PM -- Privacy Message */
2178 fprintf(stderr, "erresc: unknown str ");
2184 char *p = strescseq.buf;
2187 strescseq.buf[strescseq.len] = '\0';
2188 while(p && strescseq.narg < STR_ARG_SIZ)
2189 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2197 printf("ESC%c", strescseq.type);
2198 for(i = 0; i < strescseq.len; i++) {
2199 c = strescseq.buf[i] & 0xff;
2202 } else if(isprint(c)) {
2204 } else if(c == '\n') {
2206 } else if(c == '\r') {
2208 } else if(c == 0x1b) {
2211 printf("(%02x)", c);
2219 memset(&strescseq, 0, sizeof(strescseq));
2223 tprinter(char *s, size_t len) {
2224 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2225 fprintf(stderr, "Error writing in %s:%s\n",
2226 opt_io, strerror(errno));
2233 toggleprinter(const Arg *arg) {
2234 term.mode ^= MODE_PRINT;
2238 printscreen(const Arg *arg) {
2243 printsel(const Arg *arg) {
2251 if((ptr = getsel())) {
2252 tprinter(ptr, strlen(ptr));
2261 bp = &term.line[n][0];
2262 end = &bp[term.col-1];
2263 while(end > bp && !strcmp(" ", end->c))
2265 if(bp != end || strcmp(bp->c, " ")) {
2266 for( ;bp <= end; ++bp)
2267 tprinter(bp->c, strlen(bp->c));
2276 for(i = 0; i < term.row; ++i)
2285 while(x < term.col && n--)
2286 for(++x; x < term.col && !term.tabs[x]; ++x)
2290 for(--x; x > 0 && !term.tabs[x]; --x)
2293 tmoveto(x, term.c.y);
2297 techo(char *buf, int len) {
2298 for(; len > 0; buf++, len--) {
2301 if(ISCONTROL(c)) { /* control code */
2306 } else if(c != '\n' && c != '\r' && c != '\t') {
2320 tdeftran(char ascii) {
2322 static char tbl[][2] = {
2323 {'0', CS_GRAPHIC0}, {'B', CS_USA},
2327 for (bp = &tbl[0]; (c = (*bp)[0]) && c != ascii; ++bp)
2331 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2333 term.trantbl[term.icharset] = (*bp)[1];
2337 tcontrolcode(uchar ascii) {
2338 static char question[UTF_SIZ] = "?";
2345 tmoveto(term.c.x-1, term.c.y);
2348 tmoveto(0, term.c.y);
2353 /* go to first col if the mode is set */
2354 tnewline(IS_SET(MODE_CRLF));
2356 case '\a': /* BEL */
2357 if(term.esc & ESC_STR_END) {
2358 /* backwards compatibility to xterm */
2361 if(!(xw.state & WIN_FOCUSED))
2364 XBell(xw.dpy, bellvolume);
2367 case '\033': /* ESC */
2369 term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
2370 term.esc |= ESC_START;
2372 case '\016': /* SO */
2375 case '\017': /* SI */
2378 case '\032': /* SUB */
2379 tsetchar(question, &term.c.attr, term.c.x, term.c.y);
2380 case '\030': /* CAN */
2383 case '\005': /* ENQ (IGNORED) */
2384 case '\000': /* NUL (IGNORED) */
2385 case '\021': /* XON (IGNORED) */
2386 case '\023': /* XOFF (IGNORED) */
2387 case 0177: /* DEL (IGNORED) */
2389 case 0x84: /* TODO: IND */
2390 case 0x85: /* TODO: NEL */
2391 case 0x88: /* TODO: HTS */
2392 case 0x8d: /* TODO: RI */
2393 case 0x8e: /* TODO: SS2 */
2394 case 0x8f: /* TODO: SS3 */
2395 case 0x90: /* TODO: DCS */
2396 case 0x98: /* TODO: SOS */
2397 case 0x9a: /* TODO: DECID */
2398 case 0x9b: /* TODO: CSI */
2399 case 0x9c: /* TODO: ST */
2400 case 0x9d: /* TODO: OSC */
2401 case 0x9e: /* TODO: PM */
2402 case 0x9f: /* TODO: APC */
2405 /* only CAN, SUB, \a and C1 chars interrupt a sequence */
2406 term.esc &= ~(ESC_STR_END|ESC_STR);
2412 static char E[UTF_SIZ] = "E";
2415 if(c == '8') { /* DEC screen alignment test. */
2416 for(x = 0; x < term.col; ++x) {
2417 for(y = 0; y < term.row; ++y)
2418 tsetchar(E, &term.c.attr, x, y);
2424 tputc(char *c, int len) {
2433 unicodep = ascii = *c;
2435 utf8decode(c, &unicodep, UTF_SIZ);
2436 width = wcwidth(unicodep);
2437 control = ISCONTROLC1(unicodep);
2441 if(IS_SET(MODE_PRINT))
2443 control = ISCONTROL(unicodep);
2446 * STR sequence must be checked before anything else
2447 * because it uses all following characters until it
2448 * receives a ESC, a SUB, a ST or any other C1 control
2451 if(term.esc & ESC_STR) {
2453 (ascii == '\a' || ascii == 030 ||
2454 ascii == 032 || ascii == 033 ||
2455 ISCONTROLC1(unicodep))) {
2456 term.esc &= ~(ESC_START|ESC_STR);
2457 term.esc |= ESC_STR_END;
2458 } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2459 memmove(&strescseq.buf[strescseq.len], c, len);
2460 strescseq.len += len;
2464 * Here is a bug in terminals. If the user never sends
2465 * some code to stop the str or esc command, then st
2466 * will stop responding. But this is better than
2467 * silently failing with unknown characters. At least
2468 * then users will report back.
2470 * In the case users ever get fixed, here is the code:
2481 * Actions of control codes must be performed as soon they arrive
2482 * because they can be embedded inside a control sequence, and
2483 * they must not cause conflicts with sequences.
2486 tcontrolcode(ascii);
2488 * control codes are not shown ever
2491 } else if(term.esc & ESC_START) {
2492 if(term.esc & ESC_CSI) {
2493 csiescseq.buf[csiescseq.len++] = ascii;
2494 if(BETWEEN(ascii, 0x40, 0x7E)
2495 || csiescseq.len >= \
2496 sizeof(csiescseq.buf)-1) {
2502 } else if(term.esc & ESC_ALTCHARSET) {
2504 } else if(term.esc & ESC_TEST) {
2509 term.esc |= ESC_CSI;
2512 term.esc |= ESC_TEST;
2514 case 'P': /* DCS -- Device Control String */
2515 case '_': /* APC -- Application Program Command */
2516 case '^': /* PM -- Privacy Message */
2517 case ']': /* OSC -- Operating System Command */
2518 case 'k': /* old title set compatibility */
2520 strescseq.type = ascii;
2521 term.esc |= ESC_STR;
2523 case '(': /* set primary charset G0 */
2524 case ')': /* set secondary charset G1 */
2525 case '*': /* set tertiary charset G2 */
2526 case '+': /* set quaternary charset G3 */
2527 term.icharset = ascii - '(';
2528 term.esc |= ESC_ALTCHARSET;
2530 case 'D': /* IND -- Linefeed */
2531 if(term.c.y == term.bot) {
2532 tscrollup(term.top, 1);
2534 tmoveto(term.c.x, term.c.y+1);
2537 case 'E': /* NEL -- Next line */
2538 tnewline(1); /* always go to first col */
2540 case 'H': /* HTS -- Horizontal tab stop */
2541 term.tabs[term.c.x] = 1;
2543 case 'M': /* RI -- Reverse index */
2544 if(term.c.y == term.top) {
2545 tscrolldown(term.top, 1);
2547 tmoveto(term.c.x, term.c.y-1);
2550 case 'Z': /* DECID -- Identify Terminal */
2551 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2553 case 'c': /* RIS -- Reset to inital state */
2558 case '=': /* DECPAM -- Application keypad */
2559 term.mode |= MODE_APPKEYPAD;
2561 case '>': /* DECPNM -- Normal keypad */
2562 term.mode &= ~MODE_APPKEYPAD;
2564 case '7': /* DECSC -- Save Cursor */
2565 tcursor(CURSOR_SAVE);
2567 case '8': /* DECRC -- Restore Cursor */
2568 tcursor(CURSOR_LOAD);
2570 case '\\': /* ST -- String Terminator */
2571 if(term.esc & ESC_STR_END)
2575 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2576 (uchar) ascii, isprint(ascii)? ascii:'.');
2582 * All characters which form part of a sequence are not
2587 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2590 gp = &term.line[term.c.y][term.c.x];
2591 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2592 gp->mode |= ATTR_WRAP;
2596 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col)
2597 memmove(gp+1, gp, (term.col - term.c.x - 1) * sizeof(Glyph));
2599 if(term.c.x+width > term.col)
2602 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2605 gp->mode |= ATTR_WIDE;
2606 if(term.c.x+1 < term.col) {
2608 gp[1].mode = ATTR_WDUMMY;
2611 if(term.c.x+width < term.col) {
2612 tmoveto(term.c.x+width, term.c.y);
2614 term.c.state |= CURSOR_WRAPNEXT;
2619 tresize(int col, int row) {
2621 int minrow = MIN(row, term.row);
2622 int mincol = MIN(col, term.col);
2623 int slide = term.c.y - row + 1;
2628 if(col < 1 || row < 1)
2631 /* free unneeded rows */
2635 * slide screen to keep cursor where we expect it -
2636 * tscrollup would work here, but we can optimize to
2637 * memmove because we're freeing the earlier lines
2639 for(/* i = 0 */; i < slide; i++) {
2643 memmove(term.line, term.line + slide, row * sizeof(Line));
2644 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2646 for(i += row; i < term.row; i++) {
2651 /* resize to new height */
2652 term.line = xrealloc(term.line, row * sizeof(Line));
2653 term.alt = xrealloc(term.alt, row * sizeof(Line));
2654 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2655 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2657 /* resize each row to new width, zero-pad if needed */
2658 for(i = 0; i < minrow; i++) {
2660 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2661 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2664 /* allocate any new rows */
2665 for(/* i == minrow */; i < row; i++) {
2667 term.line[i] = xmalloc(col * sizeof(Glyph));
2668 term.alt[i] = xmalloc(col * sizeof(Glyph));
2670 if(col > term.col) {
2671 bp = term.tabs + term.col;
2673 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2674 while(--bp > term.tabs && !*bp)
2676 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2679 /* update terminal size */
2682 /* reset scrolling region */
2683 tsetscroll(0, row-1);
2684 /* make use of the LIMIT in tmoveto */
2685 tmoveto(term.c.x, term.c.y);
2686 /* Clearing both screens */
2690 if(mincol < col && 0 < minrow) {
2691 tclearregion(mincol, 0, col - 1, minrow - 1);
2693 if(0 < col && minrow < row) {
2694 tclearregion(0, minrow, col - 1, row - 1);
2697 tcursor(CURSOR_LOAD);
2698 } while(orig != term.line);
2705 xresize(int col, int row) {
2706 xw.tw = MAX(1, col * xw.cw);
2707 xw.th = MAX(1, row * xw.ch);
2709 XFreePixmap(xw.dpy, xw.buf);
2710 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2711 DefaultDepth(xw.dpy, xw.scr));
2712 XftDrawChange(xw.draw, xw.buf);
2713 xclear(0, 0, xw.w, xw.h);
2716 static inline ushort
2717 sixd_to_16bit(int x) {
2718 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2724 XRenderColor color = { .alpha = 0xffff };
2729 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2730 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2733 /* load colors [0-15] and [256-LEN(colorname)] (config.h) */
2734 for(i = 0; i < LEN(colorname); i++) {
2737 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2738 die("Could not allocate color '%s'\n", colorname[i]);
2742 /* load colors [16-231] ; same colors as xterm */
2743 for(i = 16; i < 6*6*6+16; i++) {
2744 color.red = sixd_to_16bit( ((i-16)/36)%6 );
2745 color.green = sixd_to_16bit( ((i-16)/6) %6 );
2746 color.blue = sixd_to_16bit( ((i-16)/1) %6 );
2747 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2748 die("Could not allocate color %d\n", i);
2751 /* load colors [232-255] ; grayscale */
2752 for(; i < 256; i++) {
2753 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
2754 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
2755 die("Could not allocate color %d\n", i);
2761 xsetcolorname(int x, const char *name) {
2762 XRenderColor color = { .alpha = 0xffff };
2765 if(!BETWEEN(x, 0, LEN(colorname)))
2769 if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
2770 color.red = sixd_to_16bit( ((x-16)/36)%6 );
2771 color.green = sixd_to_16bit( ((x-16)/6) %6 );
2772 color.blue = sixd_to_16bit( ((x-16)/1) %6 );
2773 if(!XftColorAllocValue(xw.dpy, xw.vis,
2774 xw.cmap, &color, &ncolor)) {
2778 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2781 } else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
2782 color.red = color.green = color.blue = \
2783 0x0808 + 0x0a0a * (x - (16 + 216));
2784 if(!XftColorAllocValue(xw.dpy, xw.vis,
2785 xw.cmap, &color, &ncolor)) {
2789 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2792 } else { /* system colors */
2793 name = colorname[x];
2796 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
2799 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
2805 xtermclear(int col1, int row1, int col2, int row2) {
2806 XftDrawRect(xw.draw,
2807 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2808 borderpx + col1 * xw.cw,
2809 borderpx + row1 * xw.ch,
2810 (col2-col1+1) * xw.cw,
2811 (row2-row1+1) * xw.ch);
2815 * Absolute coordinates.
2818 xclear(int x1, int y1, int x2, int y2) {
2819 XftDrawRect(xw.draw,
2820 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2821 x1, y1, x2-x1, y2-y1);
2826 XClassHint class = {opt_class ? opt_class : termname, termname};
2827 XWMHints wm = {.flags = InputHint, .input = 1};
2828 XSizeHints *sizeh = NULL;
2830 sizeh = XAllocSizeHints();
2832 sizeh->flags = PSize | PResizeInc | PBaseSize;
2833 sizeh->height = xw.h;
2834 sizeh->width = xw.w;
2835 sizeh->height_inc = xw.ch;
2836 sizeh->width_inc = xw.cw;
2837 sizeh->base_height = 2 * borderpx;
2838 sizeh->base_width = 2 * borderpx;
2839 if(xw.isfixed == True) {
2840 sizeh->flags |= PMaxSize | PMinSize;
2841 sizeh->min_width = sizeh->max_width = xw.w;
2842 sizeh->min_height = sizeh->max_height = xw.h;
2844 if(xw.gm & (XValue|YValue)) {
2845 sizeh->flags |= USPosition | PWinGravity;
2848 sizeh->win_gravity = xgeommasktogravity(xw.gm);
2851 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2857 xgeommasktogravity(int mask) {
2858 switch(mask & (XNegative|YNegative)) {
2860 return NorthWestGravity;
2862 return NorthEastGravity;
2864 return SouthWestGravity;
2866 return SouthEastGravity;
2870 xloadfont(Font *f, FcPattern *pattern) {
2874 match = FcFontMatch(NULL, pattern, &result);
2878 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2879 FcPatternDestroy(match);
2884 f->pattern = FcPatternDuplicate(pattern);
2886 f->ascent = f->match->ascent;
2887 f->descent = f->match->descent;
2889 f->rbearing = f->match->max_advance_width;
2891 f->height = f->ascent + f->descent;
2892 f->width = f->lbearing + f->rbearing;
2898 xloadfonts(char *fontstr, double fontsize) {
2900 FcResult r_sz, r_psz;
2903 if(fontstr[0] == '-') {
2904 pattern = XftXlfdParse(fontstr, False, False);
2906 pattern = FcNameParse((FcChar8 *)fontstr);
2910 die("st: can't open font %s\n", fontstr);
2913 FcPatternDel(pattern, FC_PIXEL_SIZE);
2914 FcPatternDel(pattern, FC_SIZE);
2915 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2916 usedfontsize = fontsize;
2918 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2919 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2920 if(r_psz == FcResultMatch) {
2921 usedfontsize = fontval;
2922 } else if(r_sz == FcResultMatch) {
2926 * Default font size is 12, if none given. This is to
2927 * have a known usedfontsize value.
2929 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2934 FcConfigSubstitute(0, pattern, FcMatchPattern);
2935 FcDefaultSubstitute(pattern);
2937 if(xloadfont(&dc.font, pattern))
2938 die("st: can't open font %s\n", fontstr);
2940 if(usedfontsize < 0) {
2941 FcPatternGetDouble(dc.font.match->pattern,
2942 FC_PIXEL_SIZE, 0, &fontval);
2943 usedfontsize = fontval;
2946 /* Setting character width and height. */
2947 xw.cw = CEIL(dc.font.width * cwscale);
2948 xw.ch = CEIL(dc.font.height * chscale);
2950 FcPatternDel(pattern, FC_SLANT);
2951 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2952 if(xloadfont(&dc.ifont, pattern))
2953 die("st: can't open font %s\n", fontstr);
2955 FcPatternDel(pattern, FC_WEIGHT);
2956 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2957 if(xloadfont(&dc.ibfont, pattern))
2958 die("st: can't open font %s\n", fontstr);
2960 FcPatternDel(pattern, FC_SLANT);
2961 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2962 if(xloadfont(&dc.bfont, pattern))
2963 die("st: can't open font %s\n", fontstr);
2965 FcPatternDestroy(pattern);
2969 xloadfontset(Font *f) {
2972 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
2978 xunloadfont(Font *f) {
2979 XftFontClose(xw.dpy, f->match);
2980 FcPatternDestroy(f->pattern);
2982 FcFontSetDestroy(f->set);
2986 xunloadfonts(void) {
2987 /* Free the loaded fonts in the font cache. */
2989 XftFontClose(xw.dpy, frc[--frclen].font);
2991 xunloadfont(&dc.font);
2992 xunloadfont(&dc.bfont);
2993 xunloadfont(&dc.ifont);
2994 xunloadfont(&dc.ibfont);
2998 xzoom(const Arg *arg) {
3000 xloadfonts(usedfont, usedfontsize + arg->i);
3010 pid_t thispid = getpid();
3012 if(!(xw.dpy = XOpenDisplay(NULL)))
3013 die("Can't open display\n");
3014 xw.scr = XDefaultScreen(xw.dpy);
3015 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
3019 die("Could not init fontconfig.\n");
3021 usedfont = (opt_font == NULL)? font : opt_font;
3022 xloadfonts(usedfont, 0);
3025 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
3028 /* adjust fixed window geometry */
3029 xw.w = 2 * borderpx + term.col * xw.cw;
3030 xw.h = 2 * borderpx + term.row * xw.ch;
3031 if(xw.gm & XNegative)
3032 xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
3033 if(xw.gm & YNegative)
3034 xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
3037 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3038 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3039 xw.attrs.bit_gravity = NorthWestGravity;
3040 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3041 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3042 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3043 xw.attrs.colormap = xw.cmap;
3045 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3046 XRootWindow(xw.dpy, xw.scr);
3047 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
3048 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3049 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3050 | CWEventMask | CWColormap, &xw.attrs);
3052 memset(&gcvalues, 0, sizeof(gcvalues));
3053 gcvalues.graphics_exposures = False;
3054 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3056 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3057 DefaultDepth(xw.dpy, xw.scr));
3058 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3059 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3061 /* Xft rendering context */
3062 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3065 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3066 XSetLocaleModifiers("@im=local");
3067 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3068 XSetLocaleModifiers("@im=");
3069 if((xw.xim = XOpenIM(xw.dpy,
3070 NULL, NULL, NULL)) == NULL) {
3071 die("XOpenIM failed. Could not open input"
3076 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3077 | XIMStatusNothing, XNClientWindow, xw.win,
3078 XNFocusWindow, xw.win, NULL);
3080 die("XCreateIC failed. Could not obtain input method.\n");
3082 /* white cursor, black outline */
3083 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3084 XDefineCursor(xw.dpy, xw.win, cursor);
3085 XRecolorCursor(xw.dpy, cursor,
3086 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3087 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3089 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3090 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3091 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3092 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3094 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3095 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3096 PropModeReplace, (uchar *)&thispid, 1);
3099 XMapWindow(xw.dpy, xw.win);
3101 XSync(xw.dpy, False);
3105 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3106 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3107 width = charlen * xw.cw, xp, i;
3109 int u8fl, u8fblen, u8cblen, doesexist;
3112 Font *font = &dc.font;
3114 FcPattern *fcpattern, *fontpattern;
3115 FcFontSet *fcsets[] = { NULL };
3116 FcCharSet *fccharset;
3117 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3118 XRenderColor colfg, colbg;
3122 frcflags = FRC_NORMAL;
3124 if(base.mode & ATTR_ITALIC) {
3125 if(base.fg == defaultfg)
3126 base.fg = defaultitalic;
3128 frcflags = FRC_ITALIC;
3129 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3130 if(base.fg == defaultfg)
3131 base.fg = defaultitalic;
3133 frcflags = FRC_ITALICBOLD;
3134 } else if(base.mode & ATTR_UNDERLINE) {
3135 if(base.fg == defaultfg)
3136 base.fg = defaultunderline;
3139 if(IS_TRUECOL(base.fg)) {
3140 colfg.alpha = 0xffff;
3141 colfg.red = TRUERED(base.fg);
3142 colfg.green = TRUEGREEN(base.fg);
3143 colfg.blue = TRUEBLUE(base.fg);
3144 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3147 fg = &dc.col[base.fg];
3150 if(IS_TRUECOL(base.bg)) {
3151 colbg.alpha = 0xffff;
3152 colbg.green = TRUEGREEN(base.bg);
3153 colbg.red = TRUERED(base.bg);
3154 colbg.blue = TRUEBLUE(base.bg);
3155 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3158 bg = &dc.col[base.bg];
3161 if(base.mode & ATTR_BOLD) {
3163 * change basic system colors [0-7]
3164 * to bright system colors [8-15]
3166 if(BETWEEN(base.fg, 0, 7))
3167 fg = &dc.col[base.fg + 8];
3169 if(base.mode & ATTR_ITALIC) {
3171 frcflags = FRC_ITALICBOLD;
3174 frcflags = FRC_BOLD;
3178 if(IS_SET(MODE_REVERSE)) {
3179 if(fg == &dc.col[defaultfg]) {
3180 fg = &dc.col[defaultbg];
3182 colfg.red = ~fg->color.red;
3183 colfg.green = ~fg->color.green;
3184 colfg.blue = ~fg->color.blue;
3185 colfg.alpha = fg->color.alpha;
3186 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3191 if(bg == &dc.col[defaultbg]) {
3192 bg = &dc.col[defaultfg];
3194 colbg.red = ~bg->color.red;
3195 colbg.green = ~bg->color.green;
3196 colbg.blue = ~bg->color.blue;
3197 colbg.alpha = bg->color.alpha;
3198 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3204 if(base.mode & ATTR_REVERSE) {
3210 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3213 /* Intelligent cleaning up of the borders. */
3215 xclear(0, (y == 0)? 0 : winy, borderpx,
3216 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3218 if(x + charlen >= term.col) {
3219 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3220 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3223 xclear(winx, 0, winx + width, borderpx);
3225 xclear(winx, winy + xw.ch, winx + width, xw.h);
3227 /* Clean up the region we want to draw to. */
3228 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3230 /* Set the clip region because Xft is sometimes dirty. */
3235 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3237 for(xp = winx; bytelen > 0;) {
3239 * Search for the range in the to be printed string of glyphs
3240 * that are in the main font. Then print that range. If
3241 * some glyph is found that is not in the font, do the
3247 oneatatime = font->width != xw.cw;
3250 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3254 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3255 if(oneatatime || !doesexist || bytelen <= 0) {
3256 if(oneatatime || bytelen <= 0) {
3264 XftDrawStringUtf8(xw.draw, fg,
3266 winy + font->ascent,
3284 /* Search the font cache. */
3285 for(i = 0; i < frclen; i++) {
3286 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3287 && frc[i].flags == frcflags) {
3292 /* Nothing was found. */
3296 fcsets[0] = font->set;
3299 * Nothing was found in the cache. Now use
3300 * some dozen of Fontconfig calls to get the
3301 * font for one single character.
3303 * Xft and fontconfig are design failures.
3305 fcpattern = FcPatternDuplicate(font->pattern);
3306 fccharset = FcCharSetCreate();
3308 FcCharSetAddChar(fccharset, unicodep);
3309 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3311 FcPatternAddBool(fcpattern, FC_SCALABLE,
3314 FcConfigSubstitute(0, fcpattern,
3316 FcDefaultSubstitute(fcpattern);
3318 fontpattern = FcFontSetMatch(0, fcsets,
3319 FcTrue, fcpattern, &fcres);
3322 * Overwrite or create the new cache entry.
3324 if(frclen >= LEN(frc)) {
3325 frclen = LEN(frc) - 1;
3326 XftFontClose(xw.dpy, frc[frclen].font);
3329 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3331 frc[frclen].flags = frcflags;
3336 FcPatternDestroy(fcpattern);
3337 FcCharSetDestroy(fccharset);
3340 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3341 xp, winy + frc[i].font->ascent,
3342 (FcChar8 *)u8c, u8cblen);
3344 xp += xw.cw * wcwidth(unicodep);
3348 * This is how the loop above actually should be. Why does the
3349 * application have to care about font details?
3351 * I have to repeat: Xft and Fontconfig are design failures.
3354 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3355 winy + font->ascent, (FcChar8 *)s, bytelen);
3358 if(base.mode & ATTR_UNDERLINE) {
3359 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3363 /* Reset clip to none. */
3364 XftDrawSetClip(xw.draw, 0);
3369 static int oldx = 0, oldy = 0;
3370 int sl, width, curx;
3371 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3373 LIMIT(oldx, 0, term.col-1);
3374 LIMIT(oldy, 0, term.row-1);
3378 /* adjust position if in dummy */
3379 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3381 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3384 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3386 /* remove the old cursor */
3387 sl = utf8len(term.line[oldy][oldx].c);
3388 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3389 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3392 /* draw the new one */
3393 if(!(IS_SET(MODE_HIDE))) {
3394 if(xw.state & WIN_FOCUSED) {
3395 if(IS_SET(MODE_REVERSE)) {
3396 g.mode |= ATTR_REVERSE;
3402 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3404 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3406 XftDrawRect(xw.draw, &dc.col[defaultcs],
3407 borderpx + curx * xw.cw,
3408 borderpx + term.c.y * xw.ch,
3410 XftDrawRect(xw.draw, &dc.col[defaultcs],
3411 borderpx + curx * xw.cw,
3412 borderpx + term.c.y * xw.ch,
3414 XftDrawRect(xw.draw, &dc.col[defaultcs],
3415 borderpx + (curx + 1) * xw.cw - 1,
3416 borderpx + term.c.y * xw.ch,
3418 XftDrawRect(xw.draw, &dc.col[defaultcs],
3419 borderpx + curx * xw.cw,
3420 borderpx + (term.c.y + 1) * xw.ch - 1,
3423 oldx = curx, oldy = term.c.y;
3429 xsettitle(char *p) {
3432 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3434 XSetWMName(xw.dpy, xw.win, &prop);
3435 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3441 xsettitle(opt_title ? opt_title : "st");
3445 redraw(int timeout) {
3446 struct timespec tv = {0, timeout * 1000};
3452 nanosleep(&tv, NULL);
3453 XSync(xw.dpy, False); /* necessary for a good tput flash */
3459 drawregion(0, 0, term.col, term.row);
3460 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3462 XSetForeground(xw.dpy, dc.gc,
3463 dc.col[IS_SET(MODE_REVERSE)?
3464 defaultfg : defaultbg].pixel);
3468 drawregion(int x1, int y1, int x2, int y2) {
3469 int ic, ib, x, y, ox, sl;
3471 char buf[DRAW_BUF_SIZ];
3472 bool ena_sel = sel.ob.x != -1 && 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 MODBIT(h->flags, add, 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) {
3740 gettimeofday(&last, NULL);
3743 for(xev = actionfps;;) {
3747 FD_SET(cmdfd, &rfd);
3750 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3753 die("select failed: %s\n", strerror(errno));
3755 if(FD_ISSET(cmdfd, &rfd)) {
3758 blinkset = tattrset(ATTR_BLINK);
3760 MODBIT(term.mode, 0, MODE_BLINK);
3764 if(FD_ISSET(xfd, &rfd))
3767 gettimeofday(&now, NULL);
3768 drawtimeout.tv_sec = 0;
3769 drawtimeout.tv_usec = (1000/xfps) * 1000;
3773 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3774 tsetdirtattr(ATTR_BLINK);
3775 term.mode ^= MODE_BLINK;
3779 deltatime = TIMEDIFF(now, last);
3780 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3787 while(XPending(xw.dpy)) {
3788 XNextEvent(xw.dpy, &ev);
3789 if(XFilterEvent(&ev, None))
3791 if(handler[ev.type])
3792 (handler[ev.type])(&ev);
3798 if(xev && !FD_ISSET(xfd, &rfd))
3800 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3802 if(TIMEDIFF(now, lastblink) \
3804 drawtimeout.tv_usec = 1;
3806 drawtimeout.tv_usec = (1000 * \
3821 die("%s " VERSION " (c) 2010-2014 st engineers\n" \
3822 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3823 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3827 main(int argc, char *argv[]) {
3829 uint cols = 80, rows = 24;
3836 allowaltscreen = false;
3839 opt_class = EARGF(usage());
3842 /* eat all remaining arguments */
3845 if(argv[1] != NULL && opt_title == NULL) {
3846 titles = xstrdup(argv[1]);
3847 opt_title = basename(titles);
3852 opt_font = EARGF(usage());
3855 xw.gm = XParseGeometry(EARGF(usage()),
3856 &xw.l, &xw.t, &cols, &rows);
3862 opt_io = EARGF(usage());
3865 opt_title = EARGF(usage());
3868 opt_embed = EARGF(usage());
3876 setlocale(LC_CTYPE, "");
3877 XSetLocaleModifiers("");
3878 tnew(cols? cols : 1, rows? rows : 1);