1 /* See LICENSE for licence details. */
14 #include <sys/ioctl.h>
15 #include <sys/select.h>
18 #include <sys/types.h>
23 #include <X11/Xatom.h>
25 #include <X11/Xutil.h>
26 #include <X11/cursorfont.h>
27 #include <X11/keysym.h>
28 #include <X11/Xft/Xft.h>
29 #include <fontconfig/fontconfig.h>
37 #define Draw XftDraw *
38 #define Colour XftColor
39 #define Colourmap Colormap
40 #define Rectangle XRectangle
44 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
46 #elif defined(__FreeBSD__) || defined(__DragonFly__)
52 #define XEMBED_FOCUS_IN 4
53 #define XEMBED_FOCUS_OUT 5
57 #define ESC_BUF_SIZ (128*UTF_SIZ)
58 #define ESC_ARG_SIZ 16
59 #define STR_BUF_SIZ ESC_BUF_SIZ
60 #define STR_ARG_SIZ ESC_ARG_SIZ
61 #define DRAW_BUF_SIZ 20*1024
62 #define XK_ANY_MOD UINT_MAX
64 #define XK_SWITCH_MOD (1<<13)
66 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
69 #define SERRNO strerror(errno)
70 #define MIN(a, b) ((a) < (b) ? (a) : (b))
71 #define MAX(a, b) ((a) < (b) ? (b) : (a))
72 #define LEN(a) (sizeof(a) / sizeof(a[0]))
73 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
74 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
75 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
76 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
77 #define IS_SET(flag) ((term.mode & (flag)) != 0)
78 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
80 #define VT102ID "\033[?6c"
82 enum glyph_attribute {
93 enum cursor_movement {
111 MODE_MOUSEMOTION = 64,
116 MODE_APPCURSOR = 2048,
117 MODE_MOUSESGR = 4096,
122 MODE_MOUSEX10 = 131072,
123 MODE_MOUSEMANY = 262144,
124 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
131 ESC_STR = 4, /* DSC, OSC, PM, APC */
133 ESC_STR_END = 16, /* a final string was encountered */
134 ESC_TEST = 32, /* Enter in test mode */
143 enum selection_type {
148 enum selection_snap {
155 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
157 typedef unsigned char uchar;
158 typedef unsigned int uint;
159 typedef unsigned long ulong;
160 typedef unsigned short ushort;
163 char c[UTF_SIZ]; /* character code */
164 uchar mode; /* attribute flags */
165 ushort fg; /* foreground */
166 ushort bg; /* background */
172 Glyph attr; /* current char attributes */
178 /* CSI Escape sequence structs */
179 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
181 char buf[ESC_BUF_SIZ]; /* raw string */
182 int len; /* raw string length */
184 int arg[ESC_ARG_SIZ];
185 int narg; /* nb of args */
189 /* STR Escape sequence structs */
190 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
192 char type; /* ESC type ... */
193 char buf[STR_BUF_SIZ]; /* raw string */
194 int len; /* raw string length */
195 char *args[STR_ARG_SIZ];
196 int narg; /* nb of args */
199 /* Internal representation of the screen */
201 int row; /* nb row */
202 int col; /* nb col */
203 Line *line; /* screen */
204 Line *alt; /* alternate screen */
205 bool *dirty; /* dirtyness of lines */
206 TCursor c; /* cursor */
207 int top; /* top scroll limit */
208 int bot; /* bottom scroll limit */
209 int mode; /* terminal mode flags */
210 int esc; /* escape state flags */
211 bool numlock; /* lock numbers in keyboard */
215 /* Purely graphic info */
221 Atom xembed, wmdeletewin;
226 XSetWindowAttributes attrs;
228 bool isfixed; /* is fixed geometry? */
229 int fx, fy, fw, fh; /* fixed geometry */
230 int tw, th; /* tty width and height */
231 int w, h; /* window width and height */
232 int ch; /* char height */
233 int cw; /* char width */
234 char state; /* focus, redraw, visible */
247 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
248 signed char appkey; /* application keypad */
249 signed char appcursor; /* application cursor */
250 signed char crlf; /* crlf mode */
258 * Selection variables:
259 * nb – normalized coordinates of the beginning of the selection
260 * ne – normalized coordinates of the end of the selection
261 * ob – original coordinates of the beginning of the selection
262 * oe – original coordinates of the end of the selection
271 struct timeval tclick1;
272 struct timeval tclick2;
285 void (*func)(const Arg *);
289 /* function definitions used in config.h */
290 static void clippaste(const Arg *);
291 static void numlock(const Arg *);
292 static void selpaste(const Arg *);
293 static void xzoom(const Arg *);
295 /* Config.h for applying patches and the configuration. */
311 /* Drawing Context */
313 Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
314 Font font, bfont, ifont, ibfont;
318 static void die(const char *, ...);
319 static void draw(void);
320 static void redraw(int);
321 static void drawregion(int, int, int, int);
322 static void execsh(void);
323 static void sigchld(int);
324 static void run(void);
326 static void csidump(void);
327 static void csihandle(void);
328 static void csiparse(void);
329 static void csireset(void);
330 static void strdump(void);
331 static void strhandle(void);
332 static void strparse(void);
333 static void strreset(void);
335 static int tattrset(int);
336 static void tclearregion(int, int, int, int);
337 static void tcursor(int);
338 static void tdeletechar(int);
339 static void tdeleteline(int);
340 static void tinsertblank(int);
341 static void tinsertblankline(int);
342 static void tmoveto(int, int);
343 static void tmoveato(int x, int y);
344 static void tnew(int, int);
345 static void tnewline(int);
346 static void tputtab(bool);
347 static void tputc(char *, int);
348 static void treset(void);
349 static int tresize(int, int);
350 static void tscrollup(int, int);
351 static void tscrolldown(int, int);
352 static void tsetattr(int*, int);
353 static void tsetchar(char *, Glyph *, int, int);
354 static void tsetscroll(int, int);
355 static void tswapscreen(void);
356 static void tsetdirt(int, int);
357 static void tsetdirtattr(int);
358 static void tsetmode(bool, bool, int *, int);
359 static void tfulldirt(void);
360 static void techo(char *, int);
362 static inline bool match(uint, uint);
363 static void ttynew(void);
364 static void ttyread(void);
365 static void ttyresize(void);
366 static void ttywrite(const char *, size_t);
368 static void xdraws(char *, Glyph, int, int, int, int);
369 static void xhints(void);
370 static void xclear(int, int, int, int);
371 static void xdrawcursor(void);
372 static void xinit(void);
373 static void xloadcols(void);
374 static int xsetcolorname(int, const char *);
375 static int xloadfont(Font *, FcPattern *);
376 static void xloadfonts(char *, int);
377 static int xloadfontset(Font *);
378 static void xsettitle(char *);
379 static void xresettitle(void);
380 static void xsetpointermotion(int);
381 static void xseturgency(int);
382 static void xsetsel(char*);
383 static void xtermclear(int, int, int, int);
384 static void xunloadfont(Font *f);
385 static void xunloadfonts(void);
386 static void xresize(int, int);
388 static void expose(XEvent *);
389 static void visibility(XEvent *);
390 static void unmap(XEvent *);
391 static char *kmap(KeySym, uint);
392 static void kpress(XEvent *);
393 static void cmessage(XEvent *);
394 static void cresize(int, int);
395 static void resize(XEvent *);
396 static void focus(XEvent *);
397 static void brelease(XEvent *);
398 static void bpress(XEvent *);
399 static void bmotion(XEvent *);
400 static void selnotify(XEvent *);
401 static void selclear(XEvent *);
402 static void selrequest(XEvent *);
404 static void selinit(void);
405 static void selsort(void);
406 static inline bool selected(int, int);
407 static void selcopy(void);
408 static void selscroll(int, int);
409 static void selsnap(int, int *, int *, int);
411 static int utf8decode(char *, long *);
412 static int utf8encode(long *, char *);
413 static int utf8size(char *);
414 static int isfullutf8(char *, int);
416 static ssize_t xwrite(int, char *, size_t);
417 static void *xmalloc(size_t);
418 static void *xrealloc(void *, size_t);
419 static void *xcalloc(size_t, size_t);
421 static void (*handler[LASTEvent])(XEvent *) = {
423 [ClientMessage] = cmessage,
424 [ConfigureNotify] = resize,
425 [VisibilityNotify] = visibility,
426 [UnmapNotify] = unmap,
430 [MotionNotify] = bmotion,
431 [ButtonPress] = bpress,
432 [ButtonRelease] = brelease,
433 [SelectionClear] = selclear,
434 [SelectionNotify] = selnotify,
435 [SelectionRequest] = selrequest,
442 static CSIEscape csiescseq;
443 static STREscape strescseq;
446 static Selection sel;
447 static int iofd = -1;
448 static char **opt_cmd = NULL;
449 static char *opt_io = NULL;
450 static char *opt_title = NULL;
451 static char *opt_embed = NULL;
452 static char *opt_class = NULL;
453 static char *opt_font = NULL;
454 static int oldbutton = 3; /* button event on startup: 3 = release */
456 static char *usedfont = NULL;
457 static int usedfontsize = 0;
459 /* Font Ring Cache */
474 * Fontcache is a ring buffer, with frccur as current position and frclen as
475 * the current length of used elements.
478 static Fontcache frc[1024];
479 static int frccur = -1, frclen = 0;
482 xwrite(int fd, char *s, size_t len) {
486 ssize_t r = write(fd, s, len);
496 xmalloc(size_t len) {
497 void *p = malloc(len);
500 die("Out of memory\n");
506 xrealloc(void *p, size_t len) {
507 if((p = realloc(p, len)) == NULL)
508 die("Out of memory\n");
514 xcalloc(size_t nmemb, size_t size) {
515 void *p = calloc(nmemb, size);
518 die("Out of memory\n");
524 utf8decode(char *s, long *u) {
530 if(~c & B7) { /* 0xxxxxxx */
533 } else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
534 *u = c&(B4|B3|B2|B1|B0);
536 } else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
537 *u = c&(B3|B2|B1|B0);
539 } else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
546 for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
548 if((c & (B7|B6)) != B7) /* 10xxxxxx */
551 *u |= c & (B5|B4|B3|B2|B1|B0);
554 if((n == 1 && *u < 0x80) ||
555 (n == 2 && *u < 0x800) ||
556 (n == 3 && *u < 0x10000) ||
557 (*u >= 0xD800 && *u <= 0xDFFF)) {
569 utf8encode(long *u, char *s) {
577 *sp = uc; /* 0xxxxxxx */
579 } else if(*u < 0x800) {
580 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
582 } else if(uc < 0x10000) {
583 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
585 } else if(uc <= 0x10FFFF) {
586 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
592 for(i=n,++sp; i>0; --i,++sp)
593 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
605 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
606 UTF-8 otherwise return 0 */
608 isfullutf8(char *s, int b) {
616 } else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) {
618 } else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
620 ((b == 2) && (*c2&(B7|B6)) == B7))) {
622 } else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
624 ((b == 2) && (*c2&(B7|B6)) == B7) ||
625 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) {
638 } else if((c&(B7|B6|B5)) == (B7|B6)) {
640 } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) {
649 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
650 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
654 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
655 if(sel.xtarget == None)
656 sel.xtarget = XA_STRING;
664 return LIMIT(x, 0, term.col-1);
672 return LIMIT(y, 0, term.row-1);
677 if(sel.ob.y == sel.oe.y) {
678 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
679 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
681 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
682 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
684 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
685 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
689 selected(int x, int y) {
690 if(sel.ne.y == y && sel.nb.y == y)
691 return BETWEEN(x, sel.nb.x, sel.ne.x);
693 if(sel.type == SEL_RECTANGULAR) {
694 return ((sel.nb.y <= y && y <= sel.ne.y)
695 && (sel.nb.x <= x && x <= sel.ne.x));
698 return ((sel.nb.y < y && y < sel.ne.y)
699 || (y == sel.ne.y && x <= sel.ne.x))
700 || (y == sel.nb.y && x >= sel.nb.x
701 && (x <= sel.ne.x || sel.nb.y != sel.ne.y));
705 selsnap(int mode, int *x, int *y, int direction) {
711 * Snap around if the word wraps around at the end or
712 * beginning of a line.
715 if(direction < 0 && *x <= 0) {
716 if(*y > 0 && term.line[*y - 1][term.col-1].mode
724 if(direction > 0 && *x >= term.col-1) {
725 if(*y < term.row-1 && term.line[*y][*x].mode
734 if(strchr(worddelimiters,
735 term.line[*y][*x + direction].c[0])) {
744 * Snap around if the the previous line or the current one
745 * has set ATTR_WRAP at its end. Then the whole next or
746 * previous line will be selected.
748 *x = (direction < 0) ? 0 : term.col - 1;
749 if(direction < 0 && *y > 0) {
750 for(; *y > 0; *y += direction) {
751 if(!(term.line[*y-1][term.col-1].mode
756 } else if(direction > 0 && *y < term.row-1) {
757 for(; *y < term.row; *y += direction) {
758 if(!(term.line[*y][term.col-1].mode
767 * Select the whole line when the end of line is reached.
771 while(--i > 0 && term.line[*y][i].c[0] == ' ')
781 getbuttoninfo(XEvent *e) {
783 uint state = e->xbutton.state &~Button1Mask;
785 sel.alt = IS_SET(MODE_ALTSCREEN);
787 sel.oe.x = x2col(e->xbutton.x);
788 sel.oe.y = y2row(e->xbutton.y);
790 if(sel.ob.y < sel.oe.y
791 || (sel.ob.y == sel.oe.y && sel.ob.x < sel.oe.x)) {
792 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
793 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
795 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
796 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
800 sel.type = SEL_REGULAR;
801 for(type = 1; type < LEN(selmasks); ++type) {
802 if(match(selmasks[type], state)) {
810 mousereport(XEvent *e) {
811 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
812 button = e->xbutton.button, state = e->xbutton.state,
818 if(e->xbutton.type == MotionNotify) {
819 if(x == ox && y == oy)
821 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
823 /* MOUSE_MOTION: no reporting if no button is pressed */
824 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
827 button = oldbutton + 32;
830 } else if(!IS_SET(MODE_MOUSESGR)
831 && (e->xbutton.type == ButtonRelease
832 || button == AnyButton)) {
838 if(e->xbutton.type == ButtonPress) {
845 if(!IS_SET(MODE_MOUSEX10)) {
846 button += (state & ShiftMask ? 4 : 0)
847 + (state & Mod4Mask ? 8 : 0)
848 + (state & ControlMask ? 16 : 0);
852 if(IS_SET(MODE_MOUSESGR)) {
853 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
855 e->xbutton.type == ButtonRelease ? 'm' : 'M');
856 } else if(x < 223 && y < 223) {
857 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
858 IS_SET(MODE_MOUSEX10)? button-1 : 32+button,
872 if(IS_SET(MODE_MOUSE)) {
877 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
878 if(e->xbutton.button == mk->b
879 && match(mk->mask, e->xbutton.state)) {
880 ttywrite(mk->s, strlen(mk->s));
881 if(IS_SET(MODE_ECHO))
882 techo(mk->s, strlen(mk->s));
887 if(e->xbutton.button == Button1) {
888 gettimeofday(&now, NULL);
890 /* Clear previous selection, logically and visually. */
893 sel.type = SEL_REGULAR;
894 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
895 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
898 * If the user clicks below predefined timeouts specific
899 * snapping behaviour is exposed.
901 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
902 sel.snap = SNAP_LINE;
903 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
904 sel.snap = SNAP_WORD;
908 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
909 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
913 * Draw selection, unless it's regular and we don't want to
914 * make clicks visible
918 tsetdirt(sel.nb.y, sel.ne.y);
921 sel.tclick2 = sel.tclick1;
929 int x, y, bufsize, size, i, ex;
935 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
936 ptr = str = xmalloc(bufsize);
938 /* append every set & selected glyph to the selection */
939 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
940 gp = &term.line[y][0];
941 last = gp + term.col;
943 while(--last >= gp && !(selected(last - gp, y) && \
944 strcmp(last->c, " ") != 0))
947 for(x = 0; gp <= last; x++, ++gp) {
951 size = utf8size(gp->c);
952 memcpy(ptr, gp->c, size);
957 * Copy and pasting of line endings is inconsistent
958 * in the inconsistent terminal and GUI world.
959 * The best solution seems like to produce '\n' when
960 * something is copied from st and convert '\n' to
961 * '\r', when something to be pasted is received by
963 * FIXME: Fix the computer world.
965 if(y < sel.ne.y && !((gp-1)->mode & ATTR_WRAP))
969 * If the last selected line expands in the selection
970 * after the visible text '\n' is appended.
974 while(--i > 0 && term.line[y][i].c[0] == ' ')
977 if(sel.nb.y == sel.ne.y && sel.ne.x < sel.nb.x)
989 selnotify(XEvent *e) {
990 ulong nitems, ofs, rem;
992 uchar *data, *last, *repl;
997 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
998 False, AnyPropertyType, &type, &format,
999 &nitems, &rem, &data)) {
1000 fprintf(stderr, "Clipboard allocation failed\n");
1005 * As seen in selcopy:
1006 * Line endings are inconsistent in the terminal and GUI world
1007 * copy and pasting. When receiving some selection data,
1008 * replace all '\n' with '\r'.
1009 * FIXME: Fix the computer world.
1012 last = data + nitems * format / 8;
1013 while((repl = memchr(repl, '\n', last - repl))) {
1017 ttywrite((const char *)data, nitems * format / 8);
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)) {
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)) {
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, SERRNO);
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", SERRNO);
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", SERRNO);
1226 signal(SIGCHLD, sigchld);
1228 iofd = (!strcmp(opt_io, "-")) ?
1230 open(opt_io, O_WRONLY | O_CREAT, 0666);
1232 fprintf(stderr, "Error opening %s:%s\n",
1233 opt_io, strerror(errno));
1243 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
1245 fprintf(stderr, "\n");
1250 static char buf[BUFSIZ];
1251 static int buflen = 0;
1254 int charsize; /* size of utf8 char in bytes */
1258 /* append read bytes to unprocessed bytes */
1259 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
1260 die("Couldn't read from shell: %s\n", SERRNO);
1262 /* process every complete utf8 char */
1265 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
1266 charsize = utf8decode(ptr, &utf8c);
1267 utf8encode(&utf8c, s);
1273 /* keep any uncomplete utf8 char for the next call */
1274 memmove(buf, ptr, buflen);
1278 ttywrite(const char *s, size_t n) {
1279 if(write(cmdfd, s, n) == -1)
1280 die("write error on tty: %s\n", SERRNO);
1287 w.ws_row = term.row;
1288 w.ws_col = term.col;
1289 w.ws_xpixel = xw.tw;
1290 w.ws_ypixel = xw.th;
1291 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
1292 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
1296 tattrset(int attr) {
1299 for(i = 0; i < term.row-1; i++) {
1300 for(j = 0; j < term.col-1; j++) {
1301 if(term.line[i][j].mode & attr)
1310 tsetdirt(int top, int bot) {
1313 LIMIT(top, 0, term.row-1);
1314 LIMIT(bot, 0, term.row-1);
1316 for(i = top; i <= bot; i++)
1321 tsetdirtattr(int attr) {
1324 for(i = 0; i < term.row-1; i++) {
1325 for(j = 0; j < term.col-1; j++) {
1326 if(term.line[i][j].mode & attr) {
1336 tsetdirt(0, term.row-1);
1343 if(mode == CURSOR_SAVE) {
1345 } else if(mode == CURSOR_LOAD) {
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;
1368 tclearregion(0, 0, term.col-1, term.row-1);
1370 tcursor(CURSOR_SAVE);
1374 tnew(int col, int row) {
1375 memset(&term, 0, sizeof(Term));
1384 Line *tmp = term.line;
1386 term.line = term.alt;
1388 term.mode ^= MODE_ALTSCREEN;
1393 tscrolldown(int orig, int n) {
1397 LIMIT(n, 0, term.bot-orig+1);
1399 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
1401 for(i = term.bot; i >= orig+n; i--) {
1402 temp = term.line[i];
1403 term.line[i] = term.line[i-n];
1404 term.line[i-n] = temp;
1407 term.dirty[i-n] = 1;
1414 tscrollup(int orig, int n) {
1417 LIMIT(n, 0, term.bot-orig+1);
1419 tclearregion(0, orig, term.col-1, orig+n-1);
1421 for(i = orig; i <= term.bot-n; i++) {
1422 temp = term.line[i];
1423 term.line[i] = term.line[i+n];
1424 term.line[i+n] = temp;
1427 term.dirty[i+n] = 1;
1430 selscroll(orig, -n);
1434 selscroll(int orig, int n) {
1438 if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
1439 if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
1443 if(sel.type == SEL_RECTANGULAR) {
1444 if(sel.ob.y < term.top)
1445 sel.ob.y = term.top;
1446 if(sel.oe.y > term.bot)
1447 sel.oe.y = term.bot;
1449 if(sel.ob.y < term.top) {
1450 sel.ob.y = term.top;
1453 if(sel.oe.y > term.bot) {
1454 sel.oe.y = term.bot;
1455 sel.oe.x = term.col;
1463 tnewline(int first_col) {
1467 tscrollup(term.top, 1);
1471 tmoveto(first_col ? 0 : term.c.x, y);
1476 char *p = csiescseq.buf, *np;
1485 csiescseq.buf[csiescseq.len] = '\0';
1486 while(p < csiescseq.buf+csiescseq.len) {
1488 v = strtol(p, &np, 10);
1491 if(v == LONG_MAX || v == LONG_MIN)
1493 csiescseq.arg[csiescseq.narg++] = v;
1495 if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
1499 csiescseq.mode = *p;
1502 /* for absolute user moves, when decom is set */
1504 tmoveato(int x, int y) {
1505 tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
1509 tmoveto(int x, int y) {
1512 if(term.c.state & CURSOR_ORIGIN) {
1517 maxy = term.row - 1;
1519 LIMIT(x, 0, term.col-1);
1520 LIMIT(y, miny, maxy);
1521 term.c.state &= ~CURSOR_WRAPNEXT;
1527 tsetchar(char *c, Glyph *attr, int x, int y) {
1528 static char *vt100_0[62] = { /* 0x41 - 0x7e */
1529 "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
1530 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
1531 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
1532 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
1533 "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
1534 "", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
1535 "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
1536 "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
1540 * The table is proudly stolen from rxvt.
1542 if(attr->mode & ATTR_GFX) {
1543 if(c[0] >= 0x41 && c[0] <= 0x7e
1544 && vt100_0[c[0] - 0x41]) {
1545 c = vt100_0[c[0] - 0x41];
1550 term.line[y][x] = *attr;
1551 memcpy(term.line[y][x].c, c, UTF_SIZ);
1555 tclearregion(int x1, int y1, int x2, int y2) {
1559 temp = x1, x1 = x2, x2 = temp;
1561 temp = y1, y1 = y2, y2 = temp;
1563 LIMIT(x1, 0, term.col-1);
1564 LIMIT(x2, 0, term.col-1);
1565 LIMIT(y1, 0, term.row-1);
1566 LIMIT(y2, 0, term.row-1);
1568 for(y = y1; y <= y2; y++) {
1570 for(x = x1; x <= x2; x++) {
1573 term.line[y][x] = term.c.attr;
1574 memcpy(term.line[y][x].c, " ", 2);
1580 tdeletechar(int n) {
1581 int src = term.c.x + n;
1583 int size = term.col - src;
1585 term.dirty[term.c.y] = 1;
1587 if(src >= term.col) {
1588 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1592 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1593 size * sizeof(Glyph));
1594 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1598 tinsertblank(int n) {
1601 int size = term.col - dst;
1603 term.dirty[term.c.y] = 1;
1605 if(dst >= term.col) {
1606 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1610 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1611 size * sizeof(Glyph));
1612 tclearregion(src, term.c.y, dst - 1, term.c.y);
1616 tinsertblankline(int n) {
1617 if(term.c.y < term.top || term.c.y > term.bot)
1620 tscrolldown(term.c.y, n);
1624 tdeleteline(int n) {
1625 if(term.c.y < term.top || term.c.y > term.bot)
1628 tscrollup(term.c.y, n);
1632 tsetattr(int *attr, int l) {
1635 for(i = 0; i < l; i++) {
1638 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
1639 | ATTR_BOLD | ATTR_ITALIC \
1641 term.c.attr.fg = defaultfg;
1642 term.c.attr.bg = defaultbg;
1645 term.c.attr.mode |= ATTR_BOLD;
1648 term.c.attr.mode |= ATTR_ITALIC;
1651 term.c.attr.mode |= ATTR_UNDERLINE;
1653 case 5: /* slow blink */
1654 case 6: /* rapid blink */
1655 term.c.attr.mode |= ATTR_BLINK;
1658 term.c.attr.mode |= ATTR_REVERSE;
1662 term.c.attr.mode &= ~ATTR_BOLD;
1665 term.c.attr.mode &= ~ATTR_ITALIC;
1668 term.c.attr.mode &= ~ATTR_UNDERLINE;
1672 term.c.attr.mode &= ~ATTR_BLINK;
1675 term.c.attr.mode &= ~ATTR_REVERSE;
1678 if(i + 2 < l && attr[i + 1] == 5) {
1680 if(BETWEEN(attr[i], 0, 255)) {
1681 term.c.attr.fg = attr[i];
1684 "erresc: bad fgcolor %d\n",
1689 "erresc(38): gfx attr %d unknown\n",
1694 term.c.attr.fg = defaultfg;
1697 if(i + 2 < l && attr[i + 1] == 5) {
1699 if(BETWEEN(attr[i], 0, 255)) {
1700 term.c.attr.bg = attr[i];
1703 "erresc: bad bgcolor %d\n",
1708 "erresc(48): gfx attr %d unknown\n",
1713 term.c.attr.bg = defaultbg;
1716 if(BETWEEN(attr[i], 30, 37)) {
1717 term.c.attr.fg = attr[i] - 30;
1718 } else if(BETWEEN(attr[i], 40, 47)) {
1719 term.c.attr.bg = attr[i] - 40;
1720 } else if(BETWEEN(attr[i], 90, 97)) {
1721 term.c.attr.fg = attr[i] - 90 + 8;
1722 } else if(BETWEEN(attr[i], 100, 107)) {
1723 term.c.attr.bg = attr[i] - 100 + 8;
1726 "erresc(default): gfx attr %d unknown\n",
1727 attr[i]), csidump();
1735 tsetscroll(int t, int b) {
1738 LIMIT(t, 0, term.row-1);
1739 LIMIT(b, 0, term.row-1);
1749 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
1752 tsetmode(bool priv, bool set, int *args, int narg) {
1756 for(lim = args + narg; args < lim; ++args) {
1760 case 1: /* DECCKM -- Cursor key */
1761 MODBIT(term.mode, set, MODE_APPCURSOR);
1763 case 5: /* DECSCNM -- Reverse video */
1765 MODBIT(term.mode, set, MODE_REVERSE);
1766 if(mode != term.mode)
1767 redraw(REDRAW_TIMEOUT);
1769 case 6: /* DECOM -- Origin */
1770 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1773 case 7: /* DECAWM -- Auto wrap */
1774 MODBIT(term.mode, set, MODE_WRAP);
1776 case 0: /* Error (IGNORED) */
1777 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1778 case 3: /* DECCOLM -- Column (IGNORED) */
1779 case 4: /* DECSCLM -- Scroll (IGNORED) */
1780 case 8: /* DECARM -- Auto repeat (IGNORED) */
1781 case 18: /* DECPFF -- Printer feed (IGNORED) */
1782 case 19: /* DECPEX -- Printer extent (IGNORED) */
1783 case 42: /* DECNRCM -- National characters (IGNORED) */
1784 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1786 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1787 MODBIT(term.mode, !set, MODE_HIDE);
1789 case 9: /* X10 mouse compatibility mode */
1790 xsetpointermotion(0);
1791 MODBIT(term.mode, 0, MODE_MOUSE);
1792 MODBIT(term.mode, set, MODE_MOUSEX10);
1794 case 1000: /* 1000: report button press */
1795 xsetpointermotion(0);
1796 MODBIT(term.mode, 0, MODE_MOUSE);
1797 MODBIT(term.mode, set, MODE_MOUSEBTN);
1799 case 1002: /* 1002: report motion on button press */
1800 xsetpointermotion(0);
1801 MODBIT(term.mode, 0, MODE_MOUSE);
1802 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1804 case 1003: /* 1003: enable all mouse motions */
1805 xsetpointermotion(set);
1806 MODBIT(term.mode, 0, MODE_MOUSE);
1807 MODBIT(term.mode, set, MODE_MOUSEMANY);
1809 case 1004: /* 1004: send focus events to tty */
1810 MODBIT(term.mode, set, MODE_FOCUS);
1812 case 1006: /* 1006: extended reporting mode */
1813 MODBIT(term.mode, set, MODE_MOUSESGR);
1816 MODBIT(term.mode, set, MODE_8BIT);
1818 case 1049: /* = 1047 and 1048 */
1821 if (!allowaltscreen)
1824 alt = IS_SET(MODE_ALTSCREEN);
1826 tclearregion(0, 0, term.col-1,
1829 if(set ^ alt) /* set is always 1 or 0 */
1835 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1837 /* Not implemented mouse modes. See comments there. */
1838 case 1001: /* mouse highlight mode; can hang the
1839 terminal by design when implemented. */
1840 case 1005: /* UTF-8 mouse mode; will confuse
1841 applications not supporting UTF-8
1843 case 1015: /* urxvt mangled mouse mode; incompatible
1844 and can be mistaken for other control
1848 "erresc: unknown private set/reset mode %d\n",
1854 case 0: /* Error (IGNORED) */
1856 case 2: /* KAM -- keyboard action */
1857 MODBIT(term.mode, set, MODE_KBDLOCK);
1859 case 4: /* IRM -- Insertion-replacement */
1860 MODBIT(term.mode, set, MODE_INSERT);
1862 case 12: /* SRM -- Send/Receive */
1863 MODBIT(term.mode, !set, MODE_ECHO);
1865 case 20: /* LNM -- Linefeed/new line */
1866 MODBIT(term.mode, set, MODE_CRLF);
1870 "erresc: unknown set/reset mode %d\n",
1880 switch(csiescseq.mode) {
1883 fprintf(stderr, "erresc: unknown csi ");
1887 case '@': /* ICH -- Insert <n> blank char */
1888 DEFAULT(csiescseq.arg[0], 1);
1889 tinsertblank(csiescseq.arg[0]);
1891 case 'A': /* CUU -- Cursor <n> Up */
1892 DEFAULT(csiescseq.arg[0], 1);
1893 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1895 case 'B': /* CUD -- Cursor <n> Down */
1896 case 'e': /* VPR --Cursor <n> Down */
1897 DEFAULT(csiescseq.arg[0], 1);
1898 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1900 case 'c': /* DA -- Device Attributes */
1901 if(csiescseq.arg[0] == 0)
1902 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1904 case 'C': /* CUF -- Cursor <n> Forward */
1905 case 'a': /* HPR -- Cursor <n> Forward */
1906 DEFAULT(csiescseq.arg[0], 1);
1907 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1909 case 'D': /* CUB -- Cursor <n> Backward */
1910 DEFAULT(csiescseq.arg[0], 1);
1911 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1913 case 'E': /* CNL -- Cursor <n> Down and first col */
1914 DEFAULT(csiescseq.arg[0], 1);
1915 tmoveto(0, term.c.y+csiescseq.arg[0]);
1917 case 'F': /* CPL -- Cursor <n> Up and first col */
1918 DEFAULT(csiescseq.arg[0], 1);
1919 tmoveto(0, term.c.y-csiescseq.arg[0]);
1921 case 'g': /* TBC -- Tabulation clear */
1922 switch(csiescseq.arg[0]) {
1923 case 0: /* clear current tab stop */
1924 term.tabs[term.c.x] = 0;
1926 case 3: /* clear all the tabs */
1927 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1933 case 'G': /* CHA -- Move to <col> */
1935 DEFAULT(csiescseq.arg[0], 1);
1936 tmoveto(csiescseq.arg[0]-1, term.c.y);
1938 case 'H': /* CUP -- Move to <row> <col> */
1940 DEFAULT(csiescseq.arg[0], 1);
1941 DEFAULT(csiescseq.arg[1], 1);
1942 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1944 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1945 DEFAULT(csiescseq.arg[0], 1);
1946 while(csiescseq.arg[0]--)
1949 case 'J': /* ED -- Clear screen */
1951 switch(csiescseq.arg[0]) {
1953 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1954 if(term.c.y < term.row-1) {
1955 tclearregion(0, term.c.y+1, term.col-1,
1961 tclearregion(0, 0, term.col-1, term.c.y-1);
1962 tclearregion(0, term.c.y, term.c.x, term.c.y);
1965 tclearregion(0, 0, term.col-1, term.row-1);
1971 case 'K': /* EL -- Clear line */
1972 switch(csiescseq.arg[0]) {
1974 tclearregion(term.c.x, term.c.y, term.col-1,
1978 tclearregion(0, term.c.y, term.c.x, term.c.y);
1981 tclearregion(0, term.c.y, term.col-1, term.c.y);
1985 case 'S': /* SU -- Scroll <n> line up */
1986 DEFAULT(csiescseq.arg[0], 1);
1987 tscrollup(term.top, csiescseq.arg[0]);
1989 case 'T': /* SD -- Scroll <n> line down */
1990 DEFAULT(csiescseq.arg[0], 1);
1991 tscrolldown(term.top, csiescseq.arg[0]);
1993 case 'L': /* IL -- Insert <n> blank lines */
1994 DEFAULT(csiescseq.arg[0], 1);
1995 tinsertblankline(csiescseq.arg[0]);
1997 case 'l': /* RM -- Reset Mode */
1998 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2000 case 'M': /* DL -- Delete <n> lines */
2001 DEFAULT(csiescseq.arg[0], 1);
2002 tdeleteline(csiescseq.arg[0]);
2004 case 'X': /* ECH -- Erase <n> char */
2005 DEFAULT(csiescseq.arg[0], 1);
2006 tclearregion(term.c.x, term.c.y,
2007 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2009 case 'P': /* DCH -- Delete <n> char */
2010 DEFAULT(csiescseq.arg[0], 1);
2011 tdeletechar(csiescseq.arg[0]);
2013 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2014 DEFAULT(csiescseq.arg[0], 1);
2015 while(csiescseq.arg[0]--)
2018 case 'd': /* VPA -- Move to <row> */
2019 DEFAULT(csiescseq.arg[0], 1);
2020 tmoveato(term.c.x, csiescseq.arg[0]-1);
2022 case 'h': /* SM -- Set terminal mode */
2023 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
2025 case 'm': /* SGR -- Terminal attribute (color) */
2026 tsetattr(csiescseq.arg, csiescseq.narg);
2028 case 'r': /* DECSTBM -- Set Scrolling Region */
2029 if(csiescseq.priv) {
2032 DEFAULT(csiescseq.arg[0], 1);
2033 DEFAULT(csiescseq.arg[1], term.row);
2034 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
2038 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
2039 tcursor(CURSOR_SAVE);
2041 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
2042 tcursor(CURSOR_LOAD);
2053 for(i = 0; i < csiescseq.len; i++) {
2054 c = csiescseq.buf[i] & 0xff;
2057 } else if(c == '\n') {
2059 } else if(c == '\r') {
2061 } else if(c == 0x1b) {
2064 printf("(%02x)", c);
2072 memset(&csiescseq, 0, sizeof(csiescseq));
2081 narg = strescseq.narg;
2083 switch(strescseq.type) {
2084 case ']': /* OSC -- Operating System Command */
2085 switch(i = atoi(strescseq.args[0])) {
2090 xsettitle(strescseq.args[1]);
2092 case 4: /* color set */
2095 p = strescseq.args[2];
2097 case 104: /* color reset, here p = NULL */
2098 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2099 if (!xsetcolorname(j, p)) {
2100 fprintf(stderr, "erresc: invalid color %s\n", p);
2103 * TODO if defaultbg color is changed, borders
2110 fprintf(stderr, "erresc: unknown str ");
2115 case 'k': /* old title set compatibility */
2116 xsettitle(strescseq.args[0]);
2118 case 'P': /* DSC -- Device Control String */
2119 case '_': /* APC -- Application Program Command */
2120 case '^': /* PM -- Privacy Message */
2122 fprintf(stderr, "erresc: unknown str ");
2131 char *p = strescseq.buf;
2134 strescseq.buf[strescseq.len] = '\0';
2135 while(p && strescseq.narg < STR_ARG_SIZ)
2136 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2144 printf("ESC%c", strescseq.type);
2145 for(i = 0; i < strescseq.len; i++) {
2146 c = strescseq.buf[i] & 0xff;
2149 } else if(isprint(c)) {
2151 } else if(c == '\n') {
2153 } else if(c == '\r') {
2155 } else if(c == 0x1b) {
2158 printf("(%02x)", c);
2166 memset(&strescseq, 0, sizeof(strescseq));
2170 tputtab(bool forward) {
2176 for(++x; x < term.col && !term.tabs[x]; ++x)
2181 for(--x; x > 0 && !term.tabs[x]; --x)
2184 tmoveto(x, term.c.y);
2188 techo(char *buf, int len) {
2189 for(; len > 0; buf++, len--) {
2192 if(c == '\033') { /* escape */
2195 } else if(c < '\x20') { /* control code */
2196 if(c != '\n' && c != '\r' && c != '\t') {
2210 tputc(char *c, int len) {
2212 bool control = ascii < '\x20' || ascii == 0177;
2215 if(xwrite(iofd, c, len) < 0) {
2216 fprintf(stderr, "Error writing in %s:%s\n",
2217 opt_io, strerror(errno));
2224 * STR sequences must be checked before anything else
2225 * because it can use some control codes as part of the sequence.
2227 if(term.esc & ESC_STR) {
2230 term.esc = ESC_START | ESC_STR_END;
2232 case '\a': /* backwards compatibility to xterm */
2237 if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2238 memmove(&strescseq.buf[strescseq.len], c, len);
2239 strescseq.len += len;
2242 * Here is a bug in terminals. If the user never sends
2243 * some code to stop the str or esc command, then st
2244 * will stop responding. But this is better than
2245 * silently failing with unknown characters. At least
2246 * then users will report back.
2248 * In the case users ever get fixed, here is the code:
2260 * Actions of control codes must be performed as soon they arrive
2261 * because they can be embedded inside a control sequence, and
2262 * they must not cause conflicts with sequences.
2270 tmoveto(term.c.x-1, term.c.y);
2273 tmoveto(0, term.c.y);
2278 /* go to first col if the mode is set */
2279 tnewline(IS_SET(MODE_CRLF));
2281 case '\a': /* BEL */
2282 if(!(xw.state & WIN_FOCUSED))
2285 case '\033': /* ESC */
2287 term.esc = ESC_START;
2289 case '\016': /* SO */
2290 case '\017': /* SI */
2292 * Different charsets are hard to handle. Applications
2293 * should use the right alt charset escapes for the
2294 * only reason they still exist: line drawing. The
2295 * rest is incompatible history st should not support.
2298 case '\032': /* SUB */
2299 case '\030': /* CAN */
2302 case '\005': /* ENQ (IGNORED) */
2303 case '\000': /* NUL (IGNORED) */
2304 case '\021': /* XON (IGNORED) */
2305 case '\023': /* XOFF (IGNORED) */
2306 case 0177: /* DEL (IGNORED) */
2309 } else if(term.esc & ESC_START) {
2310 if(term.esc & ESC_CSI) {
2311 csiescseq.buf[csiescseq.len++] = ascii;
2312 if(BETWEEN(ascii, 0x40, 0x7E)
2313 || csiescseq.len >= \
2314 sizeof(csiescseq.buf)-1) {
2319 } else if(term.esc & ESC_STR_END) {
2323 } else if(term.esc & ESC_ALTCHARSET) {
2325 case '0': /* Line drawing set */
2326 term.c.attr.mode |= ATTR_GFX;
2328 case 'B': /* USASCII */
2329 term.c.attr.mode &= ~ATTR_GFX;
2331 case 'A': /* UK (IGNORED) */
2332 case '<': /* multinational charset (IGNORED) */
2333 case '5': /* Finnish (IGNORED) */
2334 case 'C': /* Finnish (IGNORED) */
2335 case 'K': /* German (IGNORED) */
2338 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2341 } else if(term.esc & ESC_TEST) {
2342 if(ascii == '8') { /* DEC screen alignment test. */
2343 char E[UTF_SIZ] = "E";
2346 for(x = 0; x < term.col; ++x) {
2347 for(y = 0; y < term.row; ++y)
2348 tsetchar(E, &term.c.attr, x, y);
2355 term.esc |= ESC_CSI;
2358 term.esc |= ESC_TEST;
2360 case 'P': /* DCS -- Device Control String */
2361 case '_': /* APC -- Application Program Command */
2362 case '^': /* PM -- Privacy Message */
2363 case ']': /* OSC -- Operating System Command */
2364 case 'k': /* old title set compatibility */
2366 strescseq.type = ascii;
2367 term.esc |= ESC_STR;
2369 case '(': /* set primary charset G0 */
2370 term.esc |= ESC_ALTCHARSET;
2372 case ')': /* set secondary charset G1 (IGNORED) */
2373 case '*': /* set tertiary charset G2 (IGNORED) */
2374 case '+': /* set quaternary charset G3 (IGNORED) */
2377 case 'D': /* IND -- Linefeed */
2378 if(term.c.y == term.bot) {
2379 tscrollup(term.top, 1);
2381 tmoveto(term.c.x, term.c.y+1);
2385 case 'E': /* NEL -- Next line */
2386 tnewline(1); /* always go to first col */
2389 case 'H': /* HTS -- Horizontal tab stop */
2390 term.tabs[term.c.x] = 1;
2393 case 'M': /* RI -- Reverse index */
2394 if(term.c.y == term.top) {
2395 tscrolldown(term.top, 1);
2397 tmoveto(term.c.x, term.c.y-1);
2401 case 'Z': /* DECID -- Identify Terminal */
2402 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2405 case 'c': /* RIS -- Reset to inital state */
2410 case '=': /* DECPAM -- Application keypad */
2411 term.mode |= MODE_APPKEYPAD;
2414 case '>': /* DECPNM -- Normal keypad */
2415 term.mode &= ~MODE_APPKEYPAD;
2418 case '7': /* DECSC -- Save Cursor */
2419 tcursor(CURSOR_SAVE);
2422 case '8': /* DECRC -- Restore Cursor */
2423 tcursor(CURSOR_LOAD);
2426 case '\\': /* ST -- Stop */
2430 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2431 (uchar) ascii, isprint(ascii)? ascii:'.');
2436 * All characters which form part of a sequence are not
2442 * Display control codes only if we are in graphic mode
2444 if(control && !(term.c.attr.mode & ATTR_GFX))
2446 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2448 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2449 term.line[term.c.y][term.c.x].mode |= ATTR_WRAP;
2453 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
2454 memmove(&term.line[term.c.y][term.c.x+1],
2455 &term.line[term.c.y][term.c.x],
2456 (term.col - term.c.x - 1) * sizeof(Glyph));
2459 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2460 if(term.c.x+1 < term.col) {
2461 tmoveto(term.c.x+1, term.c.y);
2463 term.c.state |= CURSOR_WRAPNEXT;
2468 tresize(int col, int row) {
2470 int minrow = MIN(row, term.row);
2471 int mincol = MIN(col, term.col);
2472 int slide = term.c.y - row + 1;
2476 if(col < 1 || row < 1)
2479 /* free unneeded rows */
2483 * slide screen to keep cursor where we expect it -
2484 * tscrollup would work here, but we can optimize to
2485 * memmove because we're freeing the earlier lines
2487 for(/* i = 0 */; i < slide; i++) {
2491 memmove(term.line, term.line + slide, row * sizeof(Line));
2492 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2494 for(i += row; i < term.row; i++) {
2499 /* resize to new height */
2500 term.line = xrealloc(term.line, row * sizeof(Line));
2501 term.alt = xrealloc(term.alt, row * sizeof(Line));
2502 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2503 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2505 /* resize each row to new width, zero-pad if needed */
2506 for(i = 0; i < minrow; i++) {
2508 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2509 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2512 /* allocate any new rows */
2513 for(/* i == minrow */; i < row; i++) {
2515 term.line[i] = xcalloc(col, sizeof(Glyph));
2516 term.alt [i] = xcalloc(col, sizeof(Glyph));
2518 if(col > term.col) {
2519 bp = term.tabs + term.col;
2521 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2522 while(--bp > term.tabs && !*bp)
2524 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2527 /* update terminal size */
2530 /* reset scrolling region */
2531 tsetscroll(0, row-1);
2532 /* make use of the LIMIT in tmoveto */
2533 tmoveto(term.c.x, term.c.y);
2534 /* Clearing both screens */
2537 if(mincol < col && 0 < minrow) {
2538 tclearregion(mincol, 0, col - 1, minrow - 1);
2540 if(0 < col && minrow < row) {
2541 tclearregion(0, minrow, col - 1, row - 1);
2544 } while(orig != term.line);
2550 xresize(int col, int row) {
2551 xw.tw = MAX(1, col * xw.cw);
2552 xw.th = MAX(1, row * xw.ch);
2554 XFreePixmap(xw.dpy, xw.buf);
2555 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2556 DefaultDepth(xw.dpy, xw.scr));
2557 XftDrawChange(xw.draw, xw.buf);
2558 xclear(0, 0, xw.w, xw.h);
2561 static inline ushort
2562 sixd_to_16bit(int x) {
2563 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2569 XRenderColor color = { .alpha = 0xffff };
2571 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
2572 for(i = 0; i < LEN(colorname); i++) {
2575 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2576 die("Could not allocate color '%s'\n", colorname[i]);
2580 /* load colors [16-255] ; same colors as xterm */
2581 for(i = 16, r = 0; r < 6; r++) {
2582 for(g = 0; g < 6; g++) {
2583 for(b = 0; b < 6; b++) {
2584 color.red = sixd_to_16bit(r);
2585 color.green = sixd_to_16bit(g);
2586 color.blue = sixd_to_16bit(b);
2587 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
2588 die("Could not allocate color %d\n", i);
2595 for(r = 0; r < 24; r++, i++) {
2596 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
2597 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
2599 die("Could not allocate color %d\n", i);
2605 xsetcolorname(int x, const char *name) {
2606 XRenderColor color = { .alpha = 0xffff };
2608 if (x < 0 || x > LEN(colorname))
2611 if(16 <= x && x < 16 + 216) {
2612 int r = (x - 16) / 36, g = ((x - 16) % 36) / 6, b = (x - 16) % 6;
2613 color.red = sixd_to_16bit(r);
2614 color.green = sixd_to_16bit(g);
2615 color.blue = sixd_to_16bit(b);
2616 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2617 return 0; /* something went wrong */
2620 } else if (16 + 216 <= x && x < 256) {
2621 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (x - (16 + 216));
2622 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2623 return 0; /* something went wrong */
2627 name = colorname[x];
2630 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &colour))
2637 xtermclear(int col1, int row1, int col2, int row2) {
2638 XftDrawRect(xw.draw,
2639 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2640 borderpx + col1 * xw.cw,
2641 borderpx + row1 * xw.ch,
2642 (col2-col1+1) * xw.cw,
2643 (row2-row1+1) * xw.ch);
2647 * Absolute coordinates.
2650 xclear(int x1, int y1, int x2, int y2) {
2651 XftDrawRect(xw.draw,
2652 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2653 x1, y1, x2-x1, y2-y1);
2658 XClassHint class = {opt_class ? opt_class : termname, termname};
2659 XWMHints wm = {.flags = InputHint, .input = 1};
2660 XSizeHints *sizeh = NULL;
2662 sizeh = XAllocSizeHints();
2663 if(xw.isfixed == False) {
2664 sizeh->flags = PSize | PResizeInc | PBaseSize;
2665 sizeh->height = xw.h;
2666 sizeh->width = xw.w;
2667 sizeh->height_inc = xw.ch;
2668 sizeh->width_inc = xw.cw;
2669 sizeh->base_height = 2 * borderpx;
2670 sizeh->base_width = 2 * borderpx;
2672 sizeh->flags = PMaxSize | PMinSize;
2673 sizeh->min_width = sizeh->max_width = xw.fw;
2674 sizeh->min_height = sizeh->max_height = xw.fh;
2677 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
2682 xloadfont(Font *f, FcPattern *pattern) {
2686 match = FcFontMatch(NULL, pattern, &result);
2690 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2691 FcPatternDestroy(match);
2696 f->pattern = FcPatternDuplicate(pattern);
2698 f->ascent = f->match->ascent;
2699 f->descent = f->match->descent;
2701 f->rbearing = f->match->max_advance_width;
2703 f->height = f->ascent + f->descent;
2704 f->width = f->lbearing + f->rbearing;
2710 xloadfonts(char *fontstr, int fontsize) {
2715 if(fontstr[0] == '-') {
2716 pattern = XftXlfdParse(fontstr, False, False);
2718 pattern = FcNameParse((FcChar8 *)fontstr);
2722 die("st: can't open font %s\n", fontstr);
2725 FcPatternDel(pattern, FC_PIXEL_SIZE);
2726 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2727 usedfontsize = fontsize;
2729 result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2730 if(result == FcResultMatch) {
2731 usedfontsize = (int)fontval;
2734 * Default font size is 12, if none given. This is to
2735 * have a known usedfontsize value.
2737 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2742 FcConfigSubstitute(0, pattern, FcMatchPattern);
2743 FcDefaultSubstitute(pattern);
2745 if(xloadfont(&dc.font, pattern))
2746 die("st: can't open font %s\n", fontstr);
2748 /* Setting character width and height. */
2749 xw.cw = dc.font.width;
2750 xw.ch = dc.font.height;
2752 FcPatternDel(pattern, FC_SLANT);
2753 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2754 if(xloadfont(&dc.ifont, pattern))
2755 die("st: can't open font %s\n", fontstr);
2757 FcPatternDel(pattern, FC_WEIGHT);
2758 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2759 if(xloadfont(&dc.ibfont, pattern))
2760 die("st: can't open font %s\n", fontstr);
2762 FcPatternDel(pattern, FC_SLANT);
2763 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2764 if(xloadfont(&dc.bfont, pattern))
2765 die("st: can't open font %s\n", fontstr);
2767 FcPatternDestroy(pattern);
2771 xloadfontset(Font *f) {
2774 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
2780 xunloadfont(Font *f) {
2781 XftFontClose(xw.dpy, f->match);
2782 FcPatternDestroy(f->pattern);
2784 FcFontSetDestroy(f->set);
2788 xunloadfonts(void) {
2792 * Free the loaded fonts in the font cache. This is done backwards
2795 for(i = 0, ip = frccur; i < frclen; i++, ip--) {
2798 XftFontClose(xw.dpy, frc[ip].font);
2803 xunloadfont(&dc.font);
2804 xunloadfont(&dc.bfont);
2805 xunloadfont(&dc.ifont);
2806 xunloadfont(&dc.ibfont);
2810 xzoom(const Arg *arg) {
2812 xloadfonts(usedfont, usedfontsize + arg->i);
2824 if(!(xw.dpy = XOpenDisplay(NULL)))
2825 die("Can't open display\n");
2826 xw.scr = XDefaultScreen(xw.dpy);
2827 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
2831 die("Could not init fontconfig.\n");
2833 usedfont = (opt_font == NULL)? font : opt_font;
2834 xloadfonts(usedfont, 0);
2837 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
2840 /* adjust fixed window geometry */
2842 sw = DisplayWidth(xw.dpy, xw.scr);
2843 sh = DisplayHeight(xw.dpy, xw.scr);
2845 xw.fx = sw + xw.fx - xw.fw - 1;
2847 xw.fy = sh + xw.fy - xw.fh - 1;
2852 /* window - default size */
2853 xw.h = 2 * borderpx + term.row * xw.ch;
2854 xw.w = 2 * borderpx + term.col * xw.cw;
2860 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
2861 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
2862 xw.attrs.bit_gravity = NorthWestGravity;
2863 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
2864 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
2865 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
2866 xw.attrs.colormap = xw.cmap;
2868 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
2869 XRootWindow(xw.dpy, xw.scr);
2870 xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
2871 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
2872 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
2873 | CWEventMask | CWColormap, &xw.attrs);
2875 memset(&gcvalues, 0, sizeof(gcvalues));
2876 gcvalues.graphics_exposures = False;
2877 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
2879 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2880 DefaultDepth(xw.dpy, xw.scr));
2881 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
2882 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
2884 /* Xft rendering context */
2885 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
2888 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
2889 XSetLocaleModifiers("@im=local");
2890 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
2891 XSetLocaleModifiers("@im=");
2892 if((xw.xim = XOpenIM(xw.dpy,
2893 NULL, NULL, NULL)) == NULL) {
2894 die("XOpenIM failed. Could not open input"
2899 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
2900 | XIMStatusNothing, XNClientWindow, xw.win,
2901 XNFocusWindow, xw.win, NULL);
2903 die("XCreateIC failed. Could not obtain input method.\n");
2905 /* white cursor, black outline */
2906 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
2907 XDefineCursor(xw.dpy, xw.win, cursor);
2908 XRecolorCursor(xw.dpy, cursor,
2909 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
2910 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
2912 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
2913 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
2914 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
2917 XMapWindow(xw.dpy, xw.win);
2923 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
2924 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
2925 width = charlen * xw.cw, xp, i;
2927 int u8fl, u8fblen, u8cblen, doesexist;
2930 Font *font = &dc.font;
2932 FcPattern *fcpattern, *fontpattern;
2933 FcFontSet *fcsets[] = { NULL };
2934 FcCharSet *fccharset;
2935 Colour *fg, *bg, *temp, revfg, revbg;
2936 XRenderColor colfg, colbg;
2939 frcflags = FRC_NORMAL;
2941 if(base.mode & ATTR_ITALIC) {
2942 if(base.fg == defaultfg)
2943 base.fg = defaultitalic;
2945 frcflags = FRC_ITALIC;
2946 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
2947 if(base.fg == defaultfg)
2948 base.fg = defaultitalic;
2950 frcflags = FRC_ITALICBOLD;
2951 } else if(base.mode & ATTR_UNDERLINE) {
2952 if(base.fg == defaultfg)
2953 base.fg = defaultunderline;
2955 fg = &dc.col[base.fg];
2956 bg = &dc.col[base.bg];
2958 if(base.mode & ATTR_BOLD) {
2959 if(BETWEEN(base.fg, 0, 7)) {
2960 /* basic system colors */
2961 fg = &dc.col[base.fg + 8];
2962 } else if(BETWEEN(base.fg, 16, 195)) {
2964 fg = &dc.col[base.fg + 36];
2965 } else if(BETWEEN(base.fg, 232, 251)) {
2967 fg = &dc.col[base.fg + 4];
2970 * Those ranges will not be brightened:
2971 * 8 - 15 – bright system colors
2972 * 196 - 231 – highest 256 color cube
2973 * 252 - 255 – brightest colors in greyscale
2976 frcflags = FRC_BOLD;
2979 if(IS_SET(MODE_REVERSE)) {
2980 if(fg == &dc.col[defaultfg]) {
2981 fg = &dc.col[defaultbg];
2983 colfg.red = ~fg->color.red;
2984 colfg.green = ~fg->color.green;
2985 colfg.blue = ~fg->color.blue;
2986 colfg.alpha = fg->color.alpha;
2987 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
2991 if(bg == &dc.col[defaultbg]) {
2992 bg = &dc.col[defaultfg];
2994 colbg.red = ~bg->color.red;
2995 colbg.green = ~bg->color.green;
2996 colbg.blue = ~bg->color.blue;
2997 colbg.alpha = bg->color.alpha;
2998 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &revbg);
3003 if(base.mode & ATTR_REVERSE) {
3009 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3012 /* Intelligent cleaning up of the borders. */
3014 xclear(0, (y == 0)? 0 : winy, borderpx,
3015 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3017 if(x + charlen >= term.col) {
3018 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3019 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3022 xclear(winx, 0, winx + width, borderpx);
3024 xclear(winx, winy + xw.ch, winx + width, xw.h);
3026 /* Clean up the region we want to draw to. */
3027 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3029 /* Set the clip region because Xft is sometimes dirty. */
3034 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3036 for(xp = winx; bytelen > 0;) {
3038 * Search for the range in the to be printed string of glyphs
3039 * that are in the main font. Then print that range. If
3040 * some glyph is found that is not in the font, do the
3048 u8cblen = utf8decode(s, &u8char);
3052 doesexist = XftCharIndex(xw.dpy, font->match, u8char);
3053 if(!doesexist || bytelen <= 0) {
3062 XftDrawStringUtf8(xw.draw, fg,
3064 winy + font->ascent,
3067 xp += font->width * u8fl;
3080 /* Search the font cache. */
3081 for(i = 0; i < frclen; i++, frp--) {
3085 if(frc[frp].c == u8char
3086 && frc[frp].flags == frcflags) {
3091 /* Nothing was found. */
3095 fcsets[0] = font->set;
3098 * Nothing was found in the cache. Now use
3099 * some dozen of Fontconfig calls to get the
3100 * font for one single character.
3102 fcpattern = FcPatternDuplicate(font->pattern);
3103 fccharset = FcCharSetCreate();
3105 FcCharSetAddChar(fccharset, u8char);
3106 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3108 FcPatternAddBool(fcpattern, FC_SCALABLE,
3111 FcConfigSubstitute(0, fcpattern,
3113 FcDefaultSubstitute(fcpattern);
3115 fontpattern = FcFontSetMatch(0, fcsets,
3116 FcTrue, fcpattern, &fcres);
3119 * Overwrite or create the new cache entry.
3123 if(frccur >= LEN(frc))
3125 if(frclen > LEN(frc)) {
3127 XftFontClose(xw.dpy, frc[frccur].font);
3130 frc[frccur].font = XftFontOpenPattern(xw.dpy,
3132 frc[frccur].c = u8char;
3133 frc[frccur].flags = frcflags;
3135 FcPatternDestroy(fcpattern);
3136 FcCharSetDestroy(fccharset);
3141 XftDrawStringUtf8(xw.draw, fg, frc[frp].font,
3142 xp, winy + frc[frp].font->ascent,
3143 (FcChar8 *)u8c, u8cblen);
3149 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3150 winy + font->ascent, (FcChar8 *)s, bytelen);
3153 if(base.mode & ATTR_UNDERLINE) {
3154 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3158 /* Reset clip to none. */
3159 XftDrawSetClip(xw.draw, 0);
3164 static int oldx = 0, oldy = 0;
3166 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3168 LIMIT(oldx, 0, term.col-1);
3169 LIMIT(oldy, 0, term.row-1);
3171 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3173 /* remove the old cursor */
3174 sl = utf8size(term.line[oldy][oldx].c);
3175 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3178 /* draw the new one */
3179 if(!(IS_SET(MODE_HIDE))) {
3180 if(xw.state & WIN_FOCUSED) {
3181 if(IS_SET(MODE_REVERSE)) {
3182 g.mode |= ATTR_REVERSE;
3188 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
3190 XftDrawRect(xw.draw, &dc.col[defaultcs],
3191 borderpx + term.c.x * xw.cw,
3192 borderpx + term.c.y * xw.ch,
3194 XftDrawRect(xw.draw, &dc.col[defaultcs],
3195 borderpx + term.c.x * xw.cw,
3196 borderpx + term.c.y * xw.ch,
3198 XftDrawRect(xw.draw, &dc.col[defaultcs],
3199 borderpx + (term.c.x + 1) * xw.cw - 1,
3200 borderpx + term.c.y * xw.ch,
3202 XftDrawRect(xw.draw, &dc.col[defaultcs],
3203 borderpx + term.c.x * xw.cw,
3204 borderpx + (term.c.y + 1) * xw.ch - 1,
3207 oldx = term.c.x, oldy = term.c.y;
3213 xsettitle(char *p) {
3216 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3218 XSetWMName(xw.dpy, xw.win, &prop);
3223 xsettitle(opt_title ? opt_title : "st");
3227 redraw(int timeout) {
3228 struct timespec tv = {0, timeout * 1000};
3234 nanosleep(&tv, NULL);
3235 XSync(xw.dpy, False); /* necessary for a good tput flash */
3241 drawregion(0, 0, term.col, term.row);
3242 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3244 XSetForeground(xw.dpy, dc.gc,
3245 dc.col[IS_SET(MODE_REVERSE)?
3246 defaultfg : defaultbg].pixel);
3250 drawregion(int x1, int y1, int x2, int y2) {
3251 int ic, ib, x, y, ox, sl;
3253 char buf[DRAW_BUF_SIZ];
3254 bool ena_sel = sel.ob.x != -1;
3256 if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
3259 if(!(xw.state & WIN_VISIBLE))
3262 for(y = y1; y < y2; y++) {
3266 xtermclear(0, y, term.col, y);
3268 base = term.line[y][0];
3270 for(x = x1; x < x2; x++) {
3271 new = term.line[y][x];
3272 if(ena_sel && selected(x, y))
3273 new.mode ^= ATTR_REVERSE;
3274 if(ib > 0 && (ATTRCMP(base, new)
3275 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3276 xdraws(buf, base, ox, y, ic, ib);
3284 sl = utf8size(new.c);
3285 memcpy(buf+ib, new.c, sl);
3290 xdraws(buf, base, ox, y, ic, ib);
3296 expose(XEvent *ev) {
3297 XExposeEvent *e = &ev->xexpose;
3299 if(xw.state & WIN_REDRAW) {
3301 xw.state &= ~WIN_REDRAW;
3307 visibility(XEvent *ev) {
3308 XVisibilityEvent *e = &ev->xvisibility;
3310 if(e->state == VisibilityFullyObscured) {
3311 xw.state &= ~WIN_VISIBLE;
3312 } else if(!(xw.state & WIN_VISIBLE)) {
3313 /* need a full redraw for next Expose, not just a buf copy */
3314 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3320 xw.state &= ~WIN_VISIBLE;
3324 xsetpointermotion(int set) {
3325 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3326 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3330 xseturgency(int add) {
3331 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3333 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
3334 XSetWMHints(xw.dpy, xw.win, h);
3340 XFocusChangeEvent *e = &ev->xfocus;
3342 if(e->mode == NotifyGrab)
3345 if(ev->type == FocusIn) {
3346 XSetICFocus(xw.xic);
3347 xw.state |= WIN_FOCUSED;
3349 if(IS_SET(MODE_FOCUS))
3350 ttywrite("\033[I", 3);
3352 XUnsetICFocus(xw.xic);
3353 xw.state &= ~WIN_FOCUSED;
3354 if(IS_SET(MODE_FOCUS))
3355 ttywrite("\033[O", 3);
3360 match(uint mask, uint state) {
3361 state &= ~(ignoremod);
3363 if(mask == XK_NO_MOD && state)
3365 if(mask != XK_ANY_MOD && mask != XK_NO_MOD && !state)
3367 if((state & mask) != state)
3373 numlock(const Arg *dummy) {
3378 kmap(KeySym k, uint state) {
3383 /* Check for mapped keys out of X11 function keys. */
3384 for(i = 0; i < LEN(mappedkeys); i++) {
3385 if(mappedkeys[i] == k)
3388 if(i == LEN(mappedkeys)) {
3389 if((k & 0xFFFF) < 0xFD00)
3393 for(kp = key; kp < key + LEN(key); kp++) {
3399 if(!match(mask, state))
3402 if(kp->appkey > 0) {
3403 if(!IS_SET(MODE_APPKEYPAD))
3405 if(term.numlock && kp->appkey == 2)
3407 } else if(kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) {
3411 if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
3413 && !IS_SET(MODE_APPCURSOR))) {
3417 if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
3418 (kp->crlf > 0 && !IS_SET(MODE_CRLF))) {
3429 kpress(XEvent *ev) {
3430 XKeyEvent *e = &ev->xkey;
3432 char xstr[31], buf[32], *customkey, *cp = buf;
3438 if(IS_SET(MODE_KBDLOCK))
3441 len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
3442 e->state &= ~Mod2Mask;
3444 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3445 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3446 bp->func(&(bp->arg));
3451 /* 2. custom keys from config.h */
3452 if((customkey = kmap(ksym, e->state))) {
3453 len = strlen(customkey);
3454 memcpy(buf, customkey, len);
3455 /* 3. hardcoded (overrides X lookup) */
3460 if(len == 1 && e->state & Mod1Mask) {
3461 if(IS_SET(MODE_8BIT)) {
3464 ret = utf8encode(&c, cp);
3473 memcpy(cp, xstr, len);
3474 len = cp - buf + len;
3478 if(IS_SET(MODE_ECHO))
3484 cmessage(XEvent *e) {
3487 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3489 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3490 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3491 xw.state |= WIN_FOCUSED;
3493 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3494 xw.state &= ~WIN_FOCUSED;
3496 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3497 /* Send SIGHUP to shell */
3504 cresize(int width, int height) {
3512 col = (xw.w - 2 * borderpx) / xw.cw;
3513 row = (xw.h - 2 * borderpx) / xw.ch;
3522 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3525 cresize(e->xconfigure.width, e->xconfigure.height);
3532 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3533 struct timeval drawtimeout, *tv = NULL, now, last, lastblink;
3535 gettimeofday(&lastblink, NULL);
3536 gettimeofday(&last, NULL);
3538 for(xev = actionfps;;) {
3540 FD_SET(cmdfd, &rfd);
3543 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3546 die("select failed: %s\n", SERRNO);
3548 if(FD_ISSET(cmdfd, &rfd)) {
3551 blinkset = tattrset(ATTR_BLINK);
3552 if(!blinkset && term.mode & ATTR_BLINK)
3553 term.mode &= ~(MODE_BLINK);
3557 if(FD_ISSET(xfd, &rfd))
3560 gettimeofday(&now, NULL);
3561 drawtimeout.tv_sec = 0;
3562 drawtimeout.tv_usec = (1000/xfps) * 1000;
3566 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3567 tsetdirtattr(ATTR_BLINK);
3568 term.mode ^= MODE_BLINK;
3569 gettimeofday(&lastblink, NULL);
3572 if(TIMEDIFF(now, last) \
3573 > (xev? (1000/xfps) : (1000/actionfps))) {
3579 while(XPending(xw.dpy)) {
3580 XNextEvent(xw.dpy, &ev);
3581 if(XFilterEvent(&ev, None))
3583 if(handler[ev.type])
3584 (handler[ev.type])(&ev);
3590 if(xev && !FD_ISSET(xfd, &rfd))
3592 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3594 if(TIMEDIFF(now, lastblink) \
3596 drawtimeout.tv_usec = 1;
3598 drawtimeout.tv_usec = (1000 * \
3613 die("%s " VERSION " (c) 2010-2013 st engineers\n" \
3614 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3615 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3619 main(int argc, char *argv[]) {
3624 xw.fw = xw.fh = xw.fx = xw.fy = 0;
3629 allowaltscreen = false;
3632 opt_class = EARGF(usage());
3635 /* eat all remaining arguments */
3638 if(argv[1] != NULL && opt_title == NULL) {
3639 titles = strdup(argv[1]);
3640 opt_title = basename(titles);
3645 opt_font = EARGF(usage());
3648 bitm = XParseGeometry(EARGF(usage()), &xr, &yr, &wr, &hr);
3653 if(bitm & WidthValue)
3655 if(bitm & HeightValue)
3657 if(bitm & XNegative && xw.fx == 0)
3659 if(bitm & XNegative && xw.fy == 0)
3662 if(xw.fh != 0 && xw.fw != 0)
3666 opt_io = EARGF(usage());
3669 opt_title = EARGF(usage());
3672 opt_embed = EARGF(usage());
3680 setlocale(LC_CTYPE, "");
3681 XSetLocaleModifiers("");
3687 cresize(xw.h, xw.w);