1 /* See LICENSE for licence details. */
15 #include <sys/ioctl.h>
16 #include <sys/select.h>
19 #include <sys/types.h>
24 #include <X11/Xatom.h>
26 #include <X11/Xutil.h>
27 #include <X11/cursorfont.h>
28 #include <X11/keysym.h>
29 #include <X11/Xft/Xft.h>
30 #include <fontconfig/fontconfig.h>
42 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
44 #elif defined(__FreeBSD__) || defined(__DragonFly__)
50 #define XEMBED_FOCUS_IN 4
51 #define XEMBED_FOCUS_OUT 5
54 #define UTF_INVALID 0xFFFD
56 #define ESC_BUF_SIZ (128*UTF_SIZ)
57 #define ESC_ARG_SIZ 16
58 #define STR_BUF_SIZ ESC_BUF_SIZ
59 #define STR_ARG_SIZ ESC_ARG_SIZ
60 #define DRAW_BUF_SIZ 20*1024
61 #define XK_ANY_MOD UINT_MAX
63 #define XK_SWITCH_MOD (1<<13)
65 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
68 #define MIN(a, b) ((a) < (b) ? (a) : (b))
69 #define MAX(a, b) ((a) < (b) ? (b) : (a))
70 #define LEN(a) (sizeof(a) / sizeof(a)[0])
71 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
72 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
73 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
74 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
75 #define IS_SET(flag) ((term.mode & (flag)) != 0)
76 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
77 #define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
78 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
80 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
81 #define IS_TRUECOL(x) (1 << 24 & (x))
82 #define TRUERED(x) (((x) & 0xff0000) >> 8)
83 #define TRUEGREEN(x) (((x) & 0xff00))
84 #define TRUEBLUE(x) (((x) & 0xff) << 8)
87 #define VT102ID "\033[?6c"
89 enum glyph_attribute {
102 enum cursor_movement {
120 MODE_MOUSEMOTION = 64,
125 MODE_APPCURSOR = 2048,
126 MODE_MOUSESGR = 4096,
131 MODE_MOUSEX10 = 131072,
132 MODE_MOUSEMANY = 262144,
133 MODE_BRCKTPASTE = 524288,
134 MODE_PRINT = 1048576,
135 MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
152 ESC_STR = 4, /* DSC, OSC, PM, APC */
154 ESC_STR_END = 16, /* a final string was encountered */
155 ESC_TEST = 32, /* Enter in test mode */
164 enum selection_type {
169 enum selection_snap {
174 typedef unsigned char uchar;
175 typedef unsigned int uint;
176 typedef unsigned long ulong;
177 typedef unsigned short ushort;
179 typedef XftDraw *Draw;
180 typedef XftColor Colour;
181 typedef Colormap Colourmap;
184 char c[UTF_SIZ]; /* character code */
185 ushort mode; /* attribute flags */
186 uint32_t fg; /* foreground */
187 uint32_t bg; /* background */
193 Glyph attr; /* current char attributes */
199 /* CSI Escape sequence structs */
200 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
202 char buf[ESC_BUF_SIZ]; /* raw string */
203 int len; /* raw string length */
205 int arg[ESC_ARG_SIZ];
206 int narg; /* nb of args */
210 /* STR Escape sequence structs */
211 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
213 char type; /* ESC type ... */
214 char buf[STR_BUF_SIZ]; /* raw string */
215 int len; /* raw string length */
216 char *args[STR_ARG_SIZ];
217 int narg; /* nb of args */
220 /* Internal representation of the screen */
222 int row; /* nb row */
223 int col; /* nb col */
224 Line *line; /* screen */
225 Line *alt; /* alternate screen */
226 bool *dirty; /* dirtyness of lines */
227 TCursor c; /* cursor */
228 int top; /* top scroll limit */
229 int bot; /* bottom scroll limit */
230 int mode; /* terminal mode flags */
231 int esc; /* escape state flags */
232 char trantbl[4]; /* charset table translation */
233 int charset; /* current charset */
234 int icharset; /* selected charset for sequence */
235 bool numlock; /* lock numbers in keyboard */
239 /* Purely graphic info */
245 Atom xembed, wmdeletewin, netwmname, netwmpid;
250 XSetWindowAttributes attrs;
252 bool isfixed; /* is fixed geometry? */
253 int fx, fy, fw, fh; /* fixed geometry */
254 int tw, th; /* tty width and height */
255 int w, h; /* window width and height */
256 int ch; /* char height */
257 int cw; /* char width */
258 char state; /* focus, redraw, visible */
271 /* three valued logic variables: 0 indifferent, 1 on, -1 off */
272 signed char appkey; /* application keypad */
273 signed char appcursor; /* application cursor */
274 signed char crlf; /* crlf mode */
282 * Selection variables:
283 * nb – normalized coordinates of the beginning of the selection
284 * ne – normalized coordinates of the end of the selection
285 * ob – original coordinates of the beginning of the selection
286 * oe – original coordinates of the end of the selection
295 struct timeval tclick1;
296 struct timeval tclick2;
309 void (*func)(const Arg *);
313 /* function definitions used in config.h */
314 static void clippaste(const Arg *);
315 static void numlock(const Arg *);
316 static void selpaste(const Arg *);
317 static void xzoom(const Arg *);
318 static void printsel(const Arg *);
319 static void printscreen(const Arg *) ;
320 static void toggleprinter(const Arg *);
322 /* Config.h for applying patches and the configuration. */
338 /* Drawing Context */
340 Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
341 Font font, bfont, ifont, ibfont;
345 static void die(const char *, ...);
346 static void draw(void);
347 static void redraw(int);
348 static void drawregion(int, int, int, int);
349 static void execsh(void);
350 static void sigchld(int);
351 static void run(void);
353 static void csidump(void);
354 static void csihandle(void);
355 static void csiparse(void);
356 static void csireset(void);
357 static void strdump(void);
358 static void strhandle(void);
359 static void strparse(void);
360 static void strreset(void);
362 static int tattrset(int);
363 static void tprinter(char *, size_t);
364 static void tdumpsel(void);
365 static void tdumpline(int);
366 static void tdump(void);
367 static void tclearregion(int, int, int, int);
368 static void tcursor(int);
369 static void tdeletechar(int);
370 static void tdeleteline(int);
371 static void tinsertblank(int);
372 static void tinsertblankline(int);
373 static void tmoveto(int, int);
374 static void tmoveato(int, int);
375 static void tnew(int, int);
376 static void tnewline(int);
377 static void tputtab(bool);
378 static void tputc(char *, int);
379 static void treset(void);
380 static int tresize(int, int);
381 static void tscrollup(int, int);
382 static void tscrolldown(int, int);
383 static void tsetattr(int *, int);
384 static void tsetchar(char *, Glyph *, int, int);
385 static void tsetscroll(int, int);
386 static void tswapscreen(void);
387 static void tsetdirt(int, int);
388 static void tsetdirtattr(int);
389 static void tsetmode(bool, bool, int *, int);
390 static void tfulldirt(void);
391 static void techo(char *, int);
392 static int32_t tdefcolor(int *, int *, int);
393 static void tselcs(void);
394 static void tdeftran(char);
395 static inline bool match(uint, uint);
396 static void ttynew(void);
397 static void ttyread(void);
398 static void ttyresize(void);
399 static void ttysend(char *, size_t);
400 static void ttywrite(const char *, size_t);
402 static void xdraws(char *, Glyph, int, int, int, int);
403 static void xhints(void);
404 static void xclear(int, int, int, int);
405 static void xdrawcursor(void);
406 static void xinit(void);
407 static void xloadcols(void);
408 static int xsetcolorname(int, const char *);
409 static int xloadfont(Font *, FcPattern *);
410 static void xloadfonts(char *, double);
411 static int xloadfontset(Font *);
412 static void xsettitle(char *);
413 static void xresettitle(void);
414 static void xsetpointermotion(int);
415 static void xseturgency(int);
416 static void xsetsel(char *);
417 static void xtermclear(int, int, int, int);
418 static void xunloadfont(Font *);
419 static void xunloadfonts(void);
420 static void xresize(int, int);
422 static void expose(XEvent *);
423 static void visibility(XEvent *);
424 static void unmap(XEvent *);
425 static char *kmap(KeySym, uint);
426 static void kpress(XEvent *);
427 static void cmessage(XEvent *);
428 static void cresize(int, int);
429 static void resize(XEvent *);
430 static void focus(XEvent *);
431 static void brelease(XEvent *);
432 static void bpress(XEvent *);
433 static void bmotion(XEvent *);
434 static void selnotify(XEvent *);
435 static void selclear(XEvent *);
436 static void selrequest(XEvent *);
438 static void selinit(void);
439 static void selsort(void);
440 static inline bool selected(int, int);
441 static char *getsel(void);
442 static void selcopy(void);
443 static void selscroll(int, int);
444 static void selsnap(int, int *, int *, int);
446 static size_t utf8decode(char *, long *, size_t);
447 static long utf8decodebyte(char, size_t *);
448 static size_t utf8encode(long, char *, size_t);
449 static char utf8encodebyte(long, size_t);
450 static size_t utf8len(char *);
451 static size_t utf8validate(long *, size_t);
453 static ssize_t xwrite(int, char *, size_t);
454 static void *xmalloc(size_t);
455 static void *xrealloc(void *, size_t);
456 static char *xstrdup(char *);
458 static void (*handler[LASTEvent])(XEvent *) = {
460 [ClientMessage] = cmessage,
461 [ConfigureNotify] = resize,
462 [VisibilityNotify] = visibility,
463 [UnmapNotify] = unmap,
467 [MotionNotify] = bmotion,
468 [ButtonPress] = bpress,
469 [ButtonRelease] = brelease,
470 [SelectionClear] = selclear,
471 [SelectionNotify] = selnotify,
472 [SelectionRequest] = selrequest,
479 static CSIEscape csiescseq;
480 static STREscape strescseq;
483 static Selection sel;
484 static int iofd = STDOUT_FILENO;
485 static char **opt_cmd = NULL;
486 static char *opt_io = NULL;
487 static char *opt_title = NULL;
488 static char *opt_embed = NULL;
489 static char *opt_class = NULL;
490 static char *opt_font = NULL;
491 static int oldbutton = 3; /* button event on startup: 3 = release */
493 static char *usedfont = NULL;
494 static double usedfontsize = 0;
496 static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
497 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
498 static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
499 static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
501 /* Font Ring Cache */
514 /* Fontcache is an array now. A new font will be appended to the array. */
515 static Fontcache frc[16];
516 static int frclen = 0;
519 xwrite(int fd, char *s, size_t len) {
523 ssize_t r = write(fd, s, len);
533 xmalloc(size_t len) {
534 void *p = malloc(len);
537 die("Out of memory\n");
543 xrealloc(void *p, size_t len) {
544 if((p = realloc(p, len)) == NULL)
545 die("Out of memory\n");
552 if((s = strdup(s)) == NULL)
553 die("Out of memory\n");
559 utf8decode(char *c, long *u, size_t clen) {
560 size_t i, j, len, type;
566 udecoded = utf8decodebyte(c[0], &len);
567 if(!BETWEEN(len, 1, UTF_SIZ))
569 for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
570 udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
577 utf8validate(u, len);
582 utf8decodebyte(char c, size_t *i) {
583 for(*i = 0; *i < LEN(utfmask); ++(*i))
584 if(((uchar)c & utfmask[*i]) == utfbyte[*i])
585 return (uchar)c & ~utfmask[*i];
590 utf8encode(long u, char *c, size_t clen) {
593 len = utf8validate(&u, 0);
596 for(i = len - 1; i != 0; --i) {
597 c[i] = utf8encodebyte(u, 0);
600 c[0] = utf8encodebyte(u, len);
605 utf8encodebyte(long u, size_t i) {
606 return utfbyte[i] | (u & ~utfmask[i]);
611 return utf8decode(c, &(long){0}, UTF_SIZ);
615 utf8validate(long *u, size_t i) {
616 if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
618 for(i = 1; *u > utfmax[i]; ++i)
625 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
626 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
630 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
631 if(sel.xtarget == None)
632 sel.xtarget = XA_STRING;
640 return LIMIT(x, 0, term.col-1);
648 return LIMIT(y, 0, term.row-1);
653 if(sel.ob.y == sel.oe.y) {
654 sel.nb.x = MIN(sel.ob.x, sel.oe.x);
655 sel.ne.x = MAX(sel.ob.x, sel.oe.x);
657 sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
658 sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
660 sel.nb.y = MIN(sel.ob.y, sel.oe.y);
661 sel.ne.y = MAX(sel.ob.y, sel.oe.y);
665 selected(int x, int y) {
666 if(sel.ne.y == y && sel.nb.y == y)
667 return BETWEEN(x, sel.nb.x, sel.ne.x);
669 if(sel.type == SEL_RECTANGULAR) {
670 return ((sel.nb.y <= y && y <= sel.ne.y)
671 && (sel.nb.x <= x && x <= sel.ne.x));
674 return ((sel.nb.y < y && y < sel.ne.y)
675 || (y == sel.ne.y && x <= sel.ne.x))
676 || (y == sel.nb.y && x >= sel.nb.x
677 && (x <= sel.ne.x || sel.nb.y != sel.ne.y));
681 selsnap(int mode, int *x, int *y, int direction) {
687 * Snap around if the word wraps around at the end or
688 * beginning of a line.
691 if(direction < 0 && *x <= 0) {
692 if(*y > 0 && term.line[*y - 1][term.col-1].mode
700 if(direction > 0 && *x >= term.col-1) {
701 if(*y < term.row-1 && term.line[*y][*x].mode
710 if(term.line[*y][*x+direction].mode & ATTR_WDUMMY) {
715 if(strchr(worddelimiters,
716 term.line[*y][*x+direction].c[0])) {
725 * Snap around if the the previous line or the current one
726 * has set ATTR_WRAP at its end. Then the whole next or
727 * previous line will be selected.
729 *x = (direction < 0) ? 0 : term.col - 1;
730 if(direction < 0 && *y > 0) {
731 for(; *y > 0; *y += direction) {
732 if(!(term.line[*y-1][term.col-1].mode
737 } else if(direction > 0 && *y < term.row-1) {
738 for(; *y < term.row; *y += direction) {
739 if(!(term.line[*y][term.col-1].mode
748 * Select the whole line when the end of line is reached.
752 while(--i > 0 && term.line[*y][i].c[0] == ' ')
762 getbuttoninfo(XEvent *e) {
764 uint state = e->xbutton.state &~Button1Mask;
766 sel.alt = IS_SET(MODE_ALTSCREEN);
768 sel.oe.x = x2col(e->xbutton.x);
769 sel.oe.y = y2row(e->xbutton.y);
771 if(sel.ob.y < sel.oe.y
772 || (sel.ob.y == sel.oe.y && sel.ob.x < sel.oe.x)) {
773 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
774 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
776 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
777 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
781 sel.type = SEL_REGULAR;
782 for(type = 1; type < LEN(selmasks); ++type) {
783 if(match(selmasks[type], state)) {
791 mousereport(XEvent *e) {
792 int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
793 button = e->xbutton.button, state = e->xbutton.state,
799 if(e->xbutton.type == MotionNotify) {
800 if(x == ox && y == oy)
802 if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
804 /* MOUSE_MOTION: no reporting if no button is pressed */
805 if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
808 button = oldbutton + 32;
812 if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
819 if(e->xbutton.type == ButtonPress) {
823 } else if(e->xbutton.type == ButtonRelease) {
825 /* MODE_MOUSEX10: no button release reporting */
826 if(IS_SET(MODE_MOUSEX10))
831 if(!IS_SET(MODE_MOUSEX10)) {
832 button += (state & ShiftMask ? 4 : 0)
833 + (state & Mod4Mask ? 8 : 0)
834 + (state & ControlMask ? 16 : 0);
838 if(IS_SET(MODE_MOUSESGR)) {
839 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
841 e->xbutton.type == ButtonRelease ? 'm' : 'M');
842 } else if(x < 223 && y < 223) {
843 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
844 32+button, 32+x+1, 32+y+1);
857 if(IS_SET(MODE_MOUSE)) {
862 for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
863 if(e->xbutton.button == mk->b
864 && match(mk->mask, e->xbutton.state)) {
865 ttysend(mk->s, strlen(mk->s));
870 if(e->xbutton.button == Button1) {
871 gettimeofday(&now, NULL);
873 /* Clear previous selection, logically and visually. */
876 sel.type = SEL_REGULAR;
877 sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
878 sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
881 * If the user clicks below predefined timeouts specific
882 * snapping behaviour is exposed.
884 if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
885 sel.snap = SNAP_LINE;
886 } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
887 sel.snap = SNAP_WORD;
891 selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
892 selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
896 * Draw selection, unless it's regular and we don't want to
897 * make clicks visible
901 tsetdirt(sel.nb.y, sel.ne.y);
903 sel.tclick2 = sel.tclick1;
911 int x, y, bufsize, size, i, ex;
917 bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
918 ptr = str = xmalloc(bufsize);
920 /* append every set & selected glyph to the selection */
921 for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
922 gp = &term.line[y][0];
923 last = &gp[term.col-1];
925 while(last >= gp && !(selected(last - gp, y) &&
926 strcmp(last->c, " ") != 0)) {
930 for(x = 0; gp <= last; x++, ++gp) {
931 if(!selected(x, y) || (gp->mode & ATTR_WDUMMY))
934 size = utf8len(gp->c);
935 memcpy(ptr, gp->c, size);
940 * Copy and pasting of line endings is inconsistent
941 * in the inconsistent terminal and GUI world.
942 * The best solution seems like to produce '\n' when
943 * something is copied from st and convert '\n' to
944 * '\r', when something to be pasted is received by
946 * FIXME: Fix the computer world.
948 if(y < sel.ne.y && x > 0 && !((gp-1)->mode & ATTR_WRAP))
952 * If the last selected line expands in the selection
953 * after the visible text '\n' is appended.
957 while(--i > 0 && term.line[y][i].c[0] == ' ')
960 if(sel.nb.y == sel.ne.y && sel.ne.x < sel.nb.x)
977 selnotify(XEvent *e) {
978 ulong nitems, ofs, rem;
980 uchar *data, *last, *repl;
985 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
986 False, AnyPropertyType, &type, &format,
987 &nitems, &rem, &data)) {
988 fprintf(stderr, "Clipboard allocation failed\n");
993 * As seen in selcopy:
994 * Line endings are inconsistent in the terminal and GUI world
995 * copy and pasting. When receiving some selection data,
996 * replace all '\n' with '\r'.
997 * FIXME: Fix the computer world.
1000 last = data + nitems * format / 8;
1001 while((repl = memchr(repl, '\n', last - repl))) {
1005 if(IS_SET(MODE_BRCKTPASTE))
1006 ttywrite("\033[200~", 6);
1007 ttysend((char *)data, nitems * format / 8);
1008 if(IS_SET(MODE_BRCKTPASTE))
1009 ttywrite("\033[201~", 6);
1011 /* number of 32-bit chunks returned */
1012 ofs += nitems * format / 32;
1017 selpaste(const Arg *dummy) {
1018 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
1019 xw.win, CurrentTime);
1023 clippaste(const Arg *dummy) {
1026 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1027 XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
1028 xw.win, CurrentTime);
1032 selclear(XEvent *e) {
1036 tsetdirt(sel.nb.y, sel.ne.y);
1040 selrequest(XEvent *e) {
1041 XSelectionRequestEvent *xsre;
1042 XSelectionEvent xev;
1043 Atom xa_targets, string;
1045 xsre = (XSelectionRequestEvent *) e;
1046 xev.type = SelectionNotify;
1047 xev.requestor = xsre->requestor;
1048 xev.selection = xsre->selection;
1049 xev.target = xsre->target;
1050 xev.time = xsre->time;
1052 xev.property = None;
1054 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
1055 if(xsre->target == xa_targets) {
1056 /* respond with the supported type */
1057 string = sel.xtarget;
1058 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1059 XA_ATOM, 32, PropModeReplace,
1060 (uchar *) &string, 1);
1061 xev.property = xsre->property;
1062 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
1063 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
1064 xsre->target, 8, PropModeReplace,
1065 (uchar *) sel.clip, strlen(sel.clip));
1066 xev.property = xsre->property;
1069 /* all done, send a notification to the listener */
1070 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
1071 fprintf(stderr, "Error sending SelectionNotify event\n");
1075 xsetsel(char *str) {
1076 /* register the selection for both the clipboard and the primary */
1082 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
1084 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
1085 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
1089 brelease(XEvent *e) {
1090 if(IS_SET(MODE_MOUSE)) {
1095 if(e->xbutton.button == Button2) {
1097 } else if(e->xbutton.button == Button1) {
1105 tsetdirt(sel.nb.y, sel.ne.y);
1110 bmotion(XEvent *e) {
1111 int oldey, oldex, oldsby, oldsey;
1113 if(IS_SET(MODE_MOUSE)) {
1128 if(oldey != sel.oe.y || oldex != sel.oe.x)
1129 tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
1133 die(const char *errstr, ...) {
1136 va_start(ap, errstr);
1137 vfprintf(stderr, errstr, ap);
1145 char *envshell = getenv("SHELL");
1146 const struct passwd *pass = getpwuid(getuid());
1147 char buf[sizeof(long) * 8 + 1];
1149 unsetenv("COLUMNS");
1151 unsetenv("TERMCAP");
1154 setenv("LOGNAME", pass->pw_name, 1);
1155 setenv("USER", pass->pw_name, 1);
1156 setenv("SHELL", pass->pw_shell, 0);
1157 setenv("HOME", pass->pw_dir, 0);
1160 snprintf(buf, sizeof(buf), "%lu", xw.win);
1161 setenv("WINDOWID", buf, 1);
1163 signal(SIGCHLD, SIG_DFL);
1164 signal(SIGHUP, SIG_DFL);
1165 signal(SIGINT, SIG_DFL);
1166 signal(SIGQUIT, SIG_DFL);
1167 signal(SIGTERM, SIG_DFL);
1168 signal(SIGALRM, SIG_DFL);
1170 DEFAULT(envshell, shell);
1171 setenv("TERM", termname, 1);
1172 args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
1173 execvp(args[0], args);
1181 if(waitpid(pid, &stat, 0) < 0)
1182 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
1184 if(WIFEXITED(stat)) {
1185 exit(WEXITSTATUS(stat));
1194 struct winsize w = {term.row, term.col, 0, 0};
1196 /* seems to work fine on linux, openbsd and freebsd */
1197 if(openpty(&m, &s, NULL, NULL, &w) < 0)
1198 die("openpty failed: %s\n", strerror(errno));
1200 switch(pid = fork()) {
1202 die("fork failed\n");
1205 setsid(); /* create a new process group */
1206 dup2(s, STDIN_FILENO);
1207 dup2(s, STDOUT_FILENO);
1208 dup2(s, STDERR_FILENO);
1209 if(ioctl(s, TIOCSCTTY, NULL) < 0)
1210 die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
1218 signal(SIGCHLD, sigchld);
1220 term.mode |= MODE_PRINT;
1221 iofd = (!strcmp(opt_io, "-")) ?
1223 open(opt_io, O_WRONLY | O_CREAT, 0666);
1225 fprintf(stderr, "Error opening %s:%s\n",
1226 opt_io, strerror(errno));
1236 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
1238 fprintf(stderr, "\n");
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(write(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(attr->mode & ATTR_GFX) {
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) {
1591 LIMIT(n, 0, term.col - term.c.x);
1595 size = term.col - src;
1597 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1598 size * sizeof(Glyph));
1599 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1603 tinsertblank(int n) {
1606 LIMIT(n, 0, term.col - term.c.x);
1610 size = term.col - dst;
1612 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
1613 size * sizeof(Glyph));
1614 tclearregion(src, term.c.y, dst - 1, term.c.y);
1618 tinsertblankline(int n) {
1619 if(BETWEEN(term.c.y, term.top, term.bot))
1620 tscrolldown(term.c.y, n);
1624 tdeleteline(int n) {
1625 if(BETWEEN(term.c.y, term.top, term.bot))
1626 tscrollup(term.c.y, n);
1630 tdefcolor(int *attr, int *npar, int l) {
1634 switch (attr[*npar + 1]) {
1635 case 2: /* direct colour in RGB space */
1636 if (*npar + 4 >= l) {
1638 "erresc(38): Incorrect number of parameters (%d)\n",
1642 r = attr[*npar + 2];
1643 g = attr[*npar + 3];
1644 b = attr[*npar + 4];
1646 if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
1647 fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
1650 idx = TRUECOLOR(r, g, b);
1652 case 5: /* indexed colour */
1653 if (*npar + 2 >= l) {
1655 "erresc(38): Incorrect number of parameters (%d)\n",
1660 if(!BETWEEN(attr[*npar], 0, 255))
1661 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
1665 case 0: /* implemented defined (only foreground) */
1666 case 1: /* transparent */
1667 case 3: /* direct colour in CMY space */
1668 case 4: /* direct colour in CMYK space */
1671 "erresc(38): gfx attr %d unknown\n", attr[*npar]);
1678 tsetattr(int *attr, int l) {
1682 for(i = 0; i < l; i++) {
1685 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
1686 | ATTR_BOLD | ATTR_ITALIC \
1688 term.c.attr.fg = defaultfg;
1689 term.c.attr.bg = defaultbg;
1692 term.c.attr.mode |= ATTR_BOLD;
1695 term.c.attr.mode |= ATTR_ITALIC;
1698 term.c.attr.mode |= ATTR_UNDERLINE;
1700 case 5: /* slow blink */
1701 case 6: /* rapid blink */
1702 term.c.attr.mode |= ATTR_BLINK;
1705 term.c.attr.mode |= ATTR_REVERSE;
1709 term.c.attr.mode &= ~ATTR_BOLD;
1712 term.c.attr.mode &= ~ATTR_ITALIC;
1715 term.c.attr.mode &= ~ATTR_UNDERLINE;
1719 term.c.attr.mode &= ~ATTR_BLINK;
1722 term.c.attr.mode &= ~ATTR_REVERSE;
1725 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1726 term.c.attr.fg = idx;
1729 term.c.attr.fg = defaultfg;
1732 if ((idx = tdefcolor(attr, &i, l)) >= 0)
1733 term.c.attr.bg = idx;
1736 term.c.attr.bg = defaultbg;
1739 if(BETWEEN(attr[i], 30, 37)) {
1740 term.c.attr.fg = attr[i] - 30;
1741 } else if(BETWEEN(attr[i], 40, 47)) {
1742 term.c.attr.bg = attr[i] - 40;
1743 } else if(BETWEEN(attr[i], 90, 97)) {
1744 term.c.attr.fg = attr[i] - 90 + 8;
1745 } else if(BETWEEN(attr[i], 100, 107)) {
1746 term.c.attr.bg = attr[i] - 100 + 8;
1749 "erresc(default): gfx attr %d unknown\n",
1750 attr[i]), csidump();
1758 tsetscroll(int t, int b) {
1761 LIMIT(t, 0, term.row-1);
1762 LIMIT(b, 0, term.row-1);
1773 tsetmode(bool priv, bool set, int *args, int narg) {
1777 for(lim = args + narg; args < lim; ++args) {
1781 case 1: /* DECCKM -- Cursor key */
1782 MODBIT(term.mode, set, MODE_APPCURSOR);
1784 case 5: /* DECSCNM -- Reverse video */
1786 MODBIT(term.mode, set, MODE_REVERSE);
1787 if(mode != term.mode)
1788 redraw(REDRAW_TIMEOUT);
1790 case 6: /* DECOM -- Origin */
1791 MODBIT(term.c.state, set, CURSOR_ORIGIN);
1794 case 7: /* DECAWM -- Auto wrap */
1795 MODBIT(term.mode, set, MODE_WRAP);
1797 case 0: /* Error (IGNORED) */
1798 case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
1799 case 3: /* DECCOLM -- Column (IGNORED) */
1800 case 4: /* DECSCLM -- Scroll (IGNORED) */
1801 case 8: /* DECARM -- Auto repeat (IGNORED) */
1802 case 18: /* DECPFF -- Printer feed (IGNORED) */
1803 case 19: /* DECPEX -- Printer extent (IGNORED) */
1804 case 42: /* DECNRCM -- National characters (IGNORED) */
1805 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1807 case 25: /* DECTCEM -- Text Cursor Enable Mode */
1808 MODBIT(term.mode, !set, MODE_HIDE);
1810 case 9: /* X10 mouse compatibility mode */
1811 xsetpointermotion(0);
1812 MODBIT(term.mode, 0, MODE_MOUSE);
1813 MODBIT(term.mode, set, MODE_MOUSEX10);
1815 case 1000: /* 1000: report button press */
1816 xsetpointermotion(0);
1817 MODBIT(term.mode, 0, MODE_MOUSE);
1818 MODBIT(term.mode, set, MODE_MOUSEBTN);
1820 case 1002: /* 1002: report motion on button press */
1821 xsetpointermotion(0);
1822 MODBIT(term.mode, 0, MODE_MOUSE);
1823 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1825 case 1003: /* 1003: enable all mouse motions */
1826 xsetpointermotion(set);
1827 MODBIT(term.mode, 0, MODE_MOUSE);
1828 MODBIT(term.mode, set, MODE_MOUSEMANY);
1830 case 1004: /* 1004: send focus events to tty */
1831 MODBIT(term.mode, set, MODE_FOCUS);
1833 case 1006: /* 1006: extended reporting mode */
1834 MODBIT(term.mode, set, MODE_MOUSESGR);
1837 MODBIT(term.mode, set, MODE_8BIT);
1839 case 1049: /* swap screen & set/restore cursor as xterm */
1840 if (!allowaltscreen)
1842 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1844 case 47: /* swap screen */
1846 if (!allowaltscreen)
1848 alt = IS_SET(MODE_ALTSCREEN);
1850 tclearregion(0, 0, term.col-1,
1853 if(set ^ alt) /* set is always 1 or 0 */
1859 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1861 case 2004: /* 2004: bracketed paste mode */
1862 MODBIT(term.mode, set, MODE_BRCKTPASTE);
1864 /* Not implemented mouse modes. See comments there. */
1865 case 1001: /* mouse highlight mode; can hang the
1866 terminal by design when implemented. */
1867 case 1005: /* UTF-8 mouse mode; will confuse
1868 applications not supporting UTF-8
1870 case 1015: /* urxvt mangled mouse mode; incompatible
1871 and can be mistaken for other control
1875 "erresc: unknown private set/reset mode %d\n",
1881 case 0: /* Error (IGNORED) */
1883 case 2: /* KAM -- keyboard action */
1884 MODBIT(term.mode, set, MODE_KBDLOCK);
1886 case 4: /* IRM -- Insertion-replacement */
1887 MODBIT(term.mode, set, MODE_INSERT);
1889 case 12: /* SRM -- Send/Receive */
1890 MODBIT(term.mode, !set, MODE_ECHO);
1892 case 20: /* LNM -- Linefeed/new line */
1893 MODBIT(term.mode, set, MODE_CRLF);
1897 "erresc: unknown set/reset mode %d\n",
1910 switch(csiescseq.mode) {
1913 fprintf(stderr, "erresc: unknown csi ");
1917 case '@': /* ICH -- Insert <n> blank char */
1918 DEFAULT(csiescseq.arg[0], 1);
1919 tinsertblank(csiescseq.arg[0]);
1921 case 'A': /* CUU -- Cursor <n> Up */
1922 DEFAULT(csiescseq.arg[0], 1);
1923 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1925 case 'B': /* CUD -- Cursor <n> Down */
1926 case 'e': /* VPR --Cursor <n> Down */
1927 DEFAULT(csiescseq.arg[0], 1);
1928 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1930 case 'i': /* MC -- Media Copy */
1931 switch(csiescseq.arg[0]) {
1936 tdumpline(term.c.y);
1942 term.mode &= ~MODE_PRINT;
1945 term.mode |= MODE_PRINT;
1949 case 'c': /* DA -- Device Attributes */
1950 if(csiescseq.arg[0] == 0)
1951 ttywrite(VT102ID, sizeof(VT102ID) - 1);
1953 case 'C': /* CUF -- Cursor <n> Forward */
1954 case 'a': /* HPR -- Cursor <n> Forward */
1955 DEFAULT(csiescseq.arg[0], 1);
1956 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1958 case 'D': /* CUB -- Cursor <n> Backward */
1959 DEFAULT(csiescseq.arg[0], 1);
1960 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1962 case 'E': /* CNL -- Cursor <n> Down and first col */
1963 DEFAULT(csiescseq.arg[0], 1);
1964 tmoveto(0, term.c.y+csiescseq.arg[0]);
1966 case 'F': /* CPL -- Cursor <n> Up and first col */
1967 DEFAULT(csiescseq.arg[0], 1);
1968 tmoveto(0, term.c.y-csiescseq.arg[0]);
1970 case 'g': /* TBC -- Tabulation clear */
1971 switch(csiescseq.arg[0]) {
1972 case 0: /* clear current tab stop */
1973 term.tabs[term.c.x] = 0;
1975 case 3: /* clear all the tabs */
1976 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1982 case 'G': /* CHA -- Move to <col> */
1984 DEFAULT(csiescseq.arg[0], 1);
1985 tmoveto(csiescseq.arg[0]-1, term.c.y);
1987 case 'H': /* CUP -- Move to <row> <col> */
1989 DEFAULT(csiescseq.arg[0], 1);
1990 DEFAULT(csiescseq.arg[1], 1);
1991 tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1993 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1994 DEFAULT(csiescseq.arg[0], 1);
1995 while(csiescseq.arg[0]--)
1998 case 'J': /* ED -- Clear screen */
2000 switch(csiescseq.arg[0]) {
2002 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
2003 if(term.c.y < term.row-1) {
2004 tclearregion(0, term.c.y+1, term.col-1,
2010 tclearregion(0, 0, term.col-1, term.c.y-1);
2011 tclearregion(0, term.c.y, term.c.x, term.c.y);
2014 tclearregion(0, 0, term.col-1, term.row-1);
2020 case 'K': /* EL -- Clear line */
2021 switch(csiescseq.arg[0]) {
2023 tclearregion(term.c.x, term.c.y, term.col-1,
2027 tclearregion(0, term.c.y, term.c.x, term.c.y);
2030 tclearregion(0, term.c.y, term.col-1, term.c.y);
2034 case 'S': /* SU -- Scroll <n> line up */
2035 DEFAULT(csiescseq.arg[0], 1);
2036 tscrollup(term.top, csiescseq.arg[0]);
2038 case 'T': /* SD -- Scroll <n> line down */
2039 DEFAULT(csiescseq.arg[0], 1);
2040 tscrolldown(term.top, csiescseq.arg[0]);
2042 case 'L': /* IL -- Insert <n> blank lines */
2043 DEFAULT(csiescseq.arg[0], 1);
2044 tinsertblankline(csiescseq.arg[0]);
2046 case 'l': /* RM -- Reset Mode */
2047 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
2049 case 'M': /* DL -- Delete <n> lines */
2050 DEFAULT(csiescseq.arg[0], 1);
2051 tdeleteline(csiescseq.arg[0]);
2053 case 'X': /* ECH -- Erase <n> char */
2054 DEFAULT(csiescseq.arg[0], 1);
2055 tclearregion(term.c.x, term.c.y,
2056 term.c.x + csiescseq.arg[0] - 1, term.c.y);
2058 case 'P': /* DCH -- Delete <n> char */
2059 DEFAULT(csiescseq.arg[0], 1);
2060 tdeletechar(csiescseq.arg[0]);
2062 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
2063 DEFAULT(csiescseq.arg[0], 1);
2064 while(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));
2137 narg = strescseq.narg;
2138 par = atoi(strescseq.args[0]);
2140 switch(strescseq.type) {
2141 case ']': /* OSC -- Operating System Command */
2147 xsettitle(strescseq.args[1]);
2149 case 4: /* color set */
2152 p = strescseq.args[2];
2154 case 104: /* color reset, here p = NULL */
2155 j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
2156 if (!xsetcolorname(j, p)) {
2157 fprintf(stderr, "erresc: invalid color %s\n", p);
2160 * TODO if defaultbg color is changed, borders
2168 case 'k': /* old title set compatibility */
2169 xsettitle(strescseq.args[0]);
2171 case 'P': /* DSC -- Device Control String */
2172 case '_': /* APC -- Application Program Command */
2173 case '^': /* PM -- Privacy Message */
2177 fprintf(stderr, "erresc: unknown str ");
2183 char *p = strescseq.buf;
2186 strescseq.buf[strescseq.len] = '\0';
2187 while(p && strescseq.narg < STR_ARG_SIZ)
2188 strescseq.args[strescseq.narg++] = strsep(&p, ";");
2196 printf("ESC%c", strescseq.type);
2197 for(i = 0; i < strescseq.len; i++) {
2198 c = strescseq.buf[i] & 0xff;
2201 } else if(isprint(c)) {
2203 } else if(c == '\n') {
2205 } else if(c == '\r') {
2207 } else if(c == 0x1b) {
2210 printf("(%02x)", c);
2218 memset(&strescseq, 0, sizeof(strescseq));
2222 tprinter(char *s, size_t len) {
2223 if(iofd != -1 && xwrite(iofd, s, len) < 0) {
2224 fprintf(stderr, "Error writing in %s:%s\n",
2225 opt_io, strerror(errno));
2232 toggleprinter(const Arg *arg) {
2233 term.mode ^= MODE_PRINT;
2237 printscreen(const Arg *arg) {
2242 printsel(const Arg *arg) {
2250 if((ptr = getsel())) {
2251 tprinter(ptr, strlen(ptr));
2260 bp = &term.line[n][0];
2261 end = &bp[term.col-1];
2262 while(end > bp && !strcmp(" ", end->c))
2264 if(bp != end || strcmp(bp->c, " ")) {
2265 for( ;bp <= end; ++bp)
2266 tprinter(bp->c, strlen(bp->c));
2275 for(i = 0; i < term.row; ++i)
2280 tputtab(bool forward) {
2286 for(++x; x < term.col && !term.tabs[x]; ++x)
2291 for(--x; x > 0 && !term.tabs[x]; --x)
2294 tmoveto(x, term.c.y);
2298 techo(char *buf, int len) {
2299 for(; len > 0; buf++, len--) {
2302 if(c < 0x20 || c == 0177) { /* control code */
2303 if(c != '\n' && c != '\r' && c != '\t') {
2317 tdeftran(char ascii) {
2319 static char tbl[][2] = {
2320 {'0', CS_GRAPHIC0}, {'1', CS_GRAPHIC1}, {'A', CS_UK},
2321 {'B', CS_USA}, {'<', CS_MULTI}, {'K', CS_GER},
2322 {'5', CS_FIN}, {'C', CS_FIN},
2326 for (bp = &tbl[0]; (c = (*bp)[0]) && c != ascii; ++bp)
2330 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
2332 term.trantbl[term.icharset] = (*bp)[1];
2337 MODBIT(term.c.attr.mode,
2338 term.trantbl[term.charset] == CS_GRAPHIC0,
2343 tputc(char *c, int len) {
2345 bool control = ascii < '\x20' || ascii == 0177;
2352 utf8decode(c, &unicodep, UTF_SIZ);
2353 width = wcwidth(unicodep);
2356 if(IS_SET(MODE_PRINT))
2360 * STR sequences must be checked before anything else
2361 * because it can use some control codes as part of the sequence.
2363 if(term.esc & ESC_STR) {
2366 term.esc = ESC_START | ESC_STR_END;
2368 case '\a': /* backwards compatibility to xterm */
2373 if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
2374 memmove(&strescseq.buf[strescseq.len], c, len);
2375 strescseq.len += len;
2378 * Here is a bug in terminals. If the user never sends
2379 * some code to stop the str or esc command, then st
2380 * will stop responding. But this is better than
2381 * silently failing with unknown characters. At least
2382 * then users will report back.
2384 * In the case users ever get fixed, here is the code:
2396 * Actions of control codes must be performed as soon they arrive
2397 * because they can be embedded inside a control sequence, and
2398 * they must not cause conflicts with sequences.
2406 tmoveto(term.c.x-1, term.c.y);
2409 tmoveto(0, term.c.y);
2414 /* go to first col if the mode is set */
2415 tnewline(IS_SET(MODE_CRLF));
2417 case '\a': /* BEL */
2418 if(!(xw.state & WIN_FOCUSED))
2421 XBell(xw.dpy, bellvolume);
2423 case '\033': /* ESC */
2425 term.esc = ESC_START;
2427 case '\016': /* SO */
2431 case '\017': /* SI */
2435 case '\032': /* SUB */
2436 case '\030': /* CAN */
2439 case '\005': /* ENQ (IGNORED) */
2440 case '\000': /* NUL (IGNORED) */
2441 case '\021': /* XON (IGNORED) */
2442 case '\023': /* XOFF (IGNORED) */
2443 case 0177: /* DEL (IGNORED) */
2446 } else if(term.esc & ESC_START) {
2447 if(term.esc & ESC_CSI) {
2448 csiescseq.buf[csiescseq.len++] = ascii;
2449 if(BETWEEN(ascii, 0x40, 0x7E)
2450 || csiescseq.len >= \
2451 sizeof(csiescseq.buf)-1) {
2456 } else if(term.esc & ESC_STR_END) {
2460 } else if(term.esc & ESC_ALTCHARSET) {
2464 } else if(term.esc & ESC_TEST) {
2465 if(ascii == '8') { /* DEC screen alignment test. */
2466 char E[UTF_SIZ] = "E";
2469 for(x = 0; x < term.col; ++x) {
2470 for(y = 0; y < term.row; ++y)
2471 tsetchar(E, &term.c.attr, x, y);
2478 term.esc |= ESC_CSI;
2481 term.esc |= ESC_TEST;
2483 case 'P': /* DCS -- Device Control String */
2484 case '_': /* APC -- Application Program Command */
2485 case '^': /* PM -- Privacy Message */
2486 case ']': /* OSC -- Operating System Command */
2487 case 'k': /* old title set compatibility */
2489 strescseq.type = ascii;
2490 term.esc |= ESC_STR;
2492 case '(': /* set primary charset G0 */
2493 case ')': /* set secondary charset G1 */
2494 case '*': /* set tertiary charset G2 */
2495 case '+': /* set quaternary charset G3 */
2496 term.icharset = ascii - '(';
2497 term.esc |= ESC_ALTCHARSET;
2499 case 'D': /* IND -- Linefeed */
2500 if(term.c.y == term.bot) {
2501 tscrollup(term.top, 1);
2503 tmoveto(term.c.x, term.c.y+1);
2507 case 'E': /* NEL -- Next line */
2508 tnewline(1); /* always go to first col */
2511 case 'H': /* HTS -- Horizontal tab stop */
2512 term.tabs[term.c.x] = 1;
2515 case 'M': /* RI -- Reverse index */
2516 if(term.c.y == term.top) {
2517 tscrolldown(term.top, 1);
2519 tmoveto(term.c.x, term.c.y-1);
2523 case 'Z': /* DECID -- Identify Terminal */
2524 ttywrite(VT102ID, sizeof(VT102ID) - 1);
2527 case 'c': /* RIS -- Reset to inital state */
2533 case '=': /* DECPAM -- Application keypad */
2534 term.mode |= MODE_APPKEYPAD;
2537 case '>': /* DECPNM -- Normal keypad */
2538 term.mode &= ~MODE_APPKEYPAD;
2541 case '7': /* DECSC -- Save Cursor */
2542 tcursor(CURSOR_SAVE);
2545 case '8': /* DECRC -- Restore Cursor */
2546 tcursor(CURSOR_LOAD);
2549 case '\\': /* ST -- Stop */
2553 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
2554 (uchar) ascii, isprint(ascii)? ascii:'.');
2559 * All characters which form part of a sequence are not
2565 * Display control codes only if we are in graphic mode
2567 if(control && !(term.c.attr.mode & ATTR_GFX))
2569 if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
2571 if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
2572 term.line[term.c.y][term.c.x].mode |= ATTR_WRAP;
2576 if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
2577 memmove(&term.line[term.c.y][term.c.x+1],
2578 &term.line[term.c.y][term.c.x],
2579 (term.col - term.c.x - 1) * sizeof(Glyph));
2582 if(term.c.x+width > term.col)
2585 tsetchar(c, &term.c.attr, term.c.x, term.c.y);
2588 term.line[term.c.y][term.c.x].mode |= ATTR_WIDE;
2589 if(term.c.x+1 < term.col) {
2590 term.line[term.c.y][term.c.x+1].c[0] = '\0';
2591 term.line[term.c.y][term.c.x+1].mode = ATTR_WDUMMY;
2594 if(term.c.x+width < term.col) {
2595 tmoveto(term.c.x+width, term.c.y);
2597 term.c.state |= CURSOR_WRAPNEXT;
2602 tresize(int col, int row) {
2604 int minrow = MIN(row, term.row);
2605 int mincol = MIN(col, term.col);
2606 int slide = term.c.y - row + 1;
2610 if(col < 1 || row < 1)
2613 /* free unneeded rows */
2617 * slide screen to keep cursor where we expect it -
2618 * tscrollup would work here, but we can optimize to
2619 * memmove because we're freeing the earlier lines
2621 for(/* i = 0 */; i < slide; i++) {
2625 memmove(term.line, term.line + slide, row * sizeof(Line));
2626 memmove(term.alt, term.alt + slide, row * sizeof(Line));
2628 for(i += row; i < term.row; i++) {
2633 /* resize to new height */
2634 term.line = xrealloc(term.line, row * sizeof(Line));
2635 term.alt = xrealloc(term.alt, row * sizeof(Line));
2636 term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
2637 term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
2639 /* resize each row to new width, zero-pad if needed */
2640 for(i = 0; i < minrow; i++) {
2642 term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
2643 term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
2646 /* allocate any new rows */
2647 for(/* i == minrow */; i < row; i++) {
2649 term.line[i] = xmalloc(col * sizeof(Glyph));
2650 term.alt[i] = xmalloc(col * sizeof(Glyph));
2652 if(col > term.col) {
2653 bp = term.tabs + term.col;
2655 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
2656 while(--bp > term.tabs && !*bp)
2658 for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
2661 /* update terminal size */
2664 /* reset scrolling region */
2665 tsetscroll(0, row-1);
2666 /* make use of the LIMIT in tmoveto */
2667 tmoveto(term.c.x, term.c.y);
2668 /* Clearing both screens */
2671 if(mincol < col && 0 < minrow) {
2672 tclearregion(mincol, 0, col - 1, minrow - 1);
2674 if(0 < col && minrow < row) {
2675 tclearregion(0, minrow, col - 1, row - 1);
2678 } while(orig != term.line);
2684 xresize(int col, int row) {
2685 xw.tw = MAX(1, col * xw.cw);
2686 xw.th = MAX(1, row * xw.ch);
2688 XFreePixmap(xw.dpy, xw.buf);
2689 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
2690 DefaultDepth(xw.dpy, xw.scr));
2691 XftDrawChange(xw.draw, xw.buf);
2692 xclear(0, 0, xw.w, xw.h);
2695 static inline ushort
2696 sixd_to_16bit(int x) {
2697 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
2703 XRenderColor color = { .alpha = 0xffff };
2708 for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
2709 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
2712 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
2713 for(i = 0; i < LEN(colorname); i++) {
2716 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
2717 die("Could not allocate color '%s'\n", colorname[i]);
2721 /* load colors [16-255] ; same colors as xterm */
2722 for(i = 16, r = 0; r < 6; r++) {
2723 for(g = 0; g < 6; g++) {
2724 for(b = 0; b < 6; b++) {
2725 color.red = sixd_to_16bit(r);
2726 color.green = sixd_to_16bit(g);
2727 color.blue = sixd_to_16bit(b);
2728 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
2729 die("Could not allocate color %d\n", i);
2736 for(r = 0; r < 24; r++, i++) {
2737 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
2738 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
2740 die("Could not allocate color %d\n", i);
2747 xsetcolorname(int x, const char *name) {
2748 XRenderColor color = { .alpha = 0xffff };
2750 if (x < 0 || x > LEN(colorname))
2753 if(16 <= x && x < 16 + 216) {
2754 int r = (x - 16) / 36, g = ((x - 16) % 36) / 6, b = (x - 16) % 6;
2755 color.red = sixd_to_16bit(r);
2756 color.green = sixd_to_16bit(g);
2757 color.blue = sixd_to_16bit(b);
2758 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2759 return 0; /* something went wrong */
2762 } else if (16 + 216 <= x && x < 256) {
2763 color.red = color.green = color.blue = 0x0808 + 0x0a0a * (x - (16 + 216));
2764 if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
2765 return 0; /* something went wrong */
2769 name = colorname[x];
2772 if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &colour))
2779 xtermclear(int col1, int row1, int col2, int row2) {
2780 XftDrawRect(xw.draw,
2781 &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
2782 borderpx + col1 * xw.cw,
2783 borderpx + row1 * xw.ch,
2784 (col2-col1+1) * xw.cw,
2785 (row2-row1+1) * xw.ch);
2789 * Absolute coordinates.
2792 xclear(int x1, int y1, int x2, int y2) {
2793 XftDrawRect(xw.draw,
2794 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
2795 x1, y1, x2-x1, y2-y1);
2800 XClassHint class = {opt_class ? opt_class : termname, termname};
2801 XWMHints wm = {.flags = InputHint, .input = 1};
2802 XSizeHints *sizeh = NULL;
2804 sizeh = XAllocSizeHints();
2805 if(xw.isfixed == False) {
2806 sizeh->flags = PSize | PResizeInc | PBaseSize;
2807 sizeh->height = xw.h;
2808 sizeh->width = xw.w;
2809 sizeh->height_inc = xw.ch;
2810 sizeh->width_inc = xw.cw;
2811 sizeh->base_height = 2 * borderpx;
2812 sizeh->base_width = 2 * borderpx;
2814 sizeh->flags = PMaxSize | PMinSize;
2815 sizeh->min_width = sizeh->max_width = xw.fw;
2816 sizeh->min_height = sizeh->max_height = xw.fh;
2819 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
2825 xloadfont(Font *f, FcPattern *pattern) {
2829 match = FcFontMatch(NULL, pattern, &result);
2833 if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
2834 FcPatternDestroy(match);
2839 f->pattern = FcPatternDuplicate(pattern);
2841 f->ascent = f->match->ascent;
2842 f->descent = f->match->descent;
2844 f->rbearing = f->match->max_advance_width;
2846 f->height = f->ascent + f->descent;
2847 f->width = f->lbearing + f->rbearing;
2853 xloadfonts(char *fontstr, double fontsize) {
2855 FcResult r_sz, r_psz;
2858 if(fontstr[0] == '-') {
2859 pattern = XftXlfdParse(fontstr, False, False);
2861 pattern = FcNameParse((FcChar8 *)fontstr);
2865 die("st: can't open font %s\n", fontstr);
2868 FcPatternDel(pattern, FC_PIXEL_SIZE);
2869 FcPatternDel(pattern, FC_SIZE);
2870 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
2871 usedfontsize = fontsize;
2873 r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
2874 r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
2875 if(r_psz == FcResultMatch) {
2876 usedfontsize = fontval;
2877 } else if(r_sz == FcResultMatch) {
2881 * Default font size is 12, if none given. This is to
2882 * have a known usedfontsize value.
2884 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
2889 FcConfigSubstitute(0, pattern, FcMatchPattern);
2890 FcDefaultSubstitute(pattern);
2892 if(xloadfont(&dc.font, pattern))
2893 die("st: can't open font %s\n", fontstr);
2895 if(usedfontsize < 0) {
2896 FcPatternGetDouble(dc.font.match->pattern,
2897 FC_PIXEL_SIZE, 0, &fontval);
2898 usedfontsize = fontval;
2901 /* Setting character width and height. */
2902 xw.cw = CEIL(dc.font.width * cwscale);
2903 xw.ch = CEIL(dc.font.height * chscale);
2905 FcPatternDel(pattern, FC_SLANT);
2906 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
2907 if(xloadfont(&dc.ifont, pattern))
2908 die("st: can't open font %s\n", fontstr);
2910 FcPatternDel(pattern, FC_WEIGHT);
2911 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
2912 if(xloadfont(&dc.ibfont, pattern))
2913 die("st: can't open font %s\n", fontstr);
2915 FcPatternDel(pattern, FC_SLANT);
2916 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
2917 if(xloadfont(&dc.bfont, pattern))
2918 die("st: can't open font %s\n", fontstr);
2920 FcPatternDestroy(pattern);
2924 xloadfontset(Font *f) {
2927 if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
2933 xunloadfont(Font *f) {
2934 XftFontClose(xw.dpy, f->match);
2935 FcPatternDestroy(f->pattern);
2937 FcFontSetDestroy(f->set);
2941 xunloadfonts(void) {
2944 /* Free the loaded fonts in the font cache. */
2945 for(i = 0; i < frclen; i++) {
2946 XftFontClose(xw.dpy, frc[i].font);
2950 xunloadfont(&dc.font);
2951 xunloadfont(&dc.bfont);
2952 xunloadfont(&dc.ifont);
2953 xunloadfont(&dc.ibfont);
2957 xzoom(const Arg *arg) {
2959 xloadfonts(usedfont, usedfontsize + arg->i);
2970 pid_t thispid = getpid();
2972 if(!(xw.dpy = XOpenDisplay(NULL)))
2973 die("Can't open display\n");
2974 xw.scr = XDefaultScreen(xw.dpy);
2975 xw.vis = XDefaultVisual(xw.dpy, xw.scr);
2979 die("Could not init fontconfig.\n");
2981 usedfont = (opt_font == NULL)? font : opt_font;
2982 xloadfonts(usedfont, 0);
2985 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
2988 /* adjust fixed window geometry */
2990 sw = DisplayWidth(xw.dpy, xw.scr);
2991 sh = DisplayHeight(xw.dpy, xw.scr);
2993 xw.fx = sw + xw.fx - xw.fw - 1;
2995 xw.fy = sh + xw.fy - xw.fh - 1;
3000 /* window - default size */
3001 xw.h = 2 * borderpx + term.row * xw.ch;
3002 xw.w = 2 * borderpx + term.col * xw.cw;
3008 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
3009 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
3010 xw.attrs.bit_gravity = NorthWestGravity;
3011 xw.attrs.event_mask = FocusChangeMask | KeyPressMask
3012 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
3013 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
3014 xw.attrs.colormap = xw.cmap;
3016 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
3017 XRootWindow(xw.dpy, xw.scr);
3018 xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
3019 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
3020 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
3021 | CWEventMask | CWColormap, &xw.attrs);
3023 memset(&gcvalues, 0, sizeof(gcvalues));
3024 gcvalues.graphics_exposures = False;
3025 dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
3027 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
3028 DefaultDepth(xw.dpy, xw.scr));
3029 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
3030 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
3032 /* Xft rendering context */
3033 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
3036 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3037 XSetLocaleModifiers("@im=local");
3038 if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
3039 XSetLocaleModifiers("@im=");
3040 if((xw.xim = XOpenIM(xw.dpy,
3041 NULL, NULL, NULL)) == NULL) {
3042 die("XOpenIM failed. Could not open input"
3047 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
3048 | XIMStatusNothing, XNClientWindow, xw.win,
3049 XNFocusWindow, xw.win, NULL);
3051 die("XCreateIC failed. Could not obtain input method.\n");
3053 /* white cursor, black outline */
3054 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
3055 XDefineCursor(xw.dpy, xw.win, cursor);
3056 XRecolorCursor(xw.dpy, cursor,
3057 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
3058 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
3060 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
3061 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
3062 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
3063 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
3065 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
3066 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
3067 PropModeReplace, (uchar *)&thispid, 1);
3070 XMapWindow(xw.dpy, xw.win);
3072 XSync(xw.dpy, False);
3076 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
3077 int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
3078 width = charlen * xw.cw, xp, i;
3080 int u8fl, u8fblen, u8cblen, doesexist;
3083 Font *font = &dc.font;
3085 FcPattern *fcpattern, *fontpattern;
3086 FcFontSet *fcsets[] = { NULL };
3087 FcCharSet *fccharset;
3088 Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
3089 XRenderColor colfg, colbg;
3093 frcflags = FRC_NORMAL;
3095 if(base.mode & ATTR_ITALIC) {
3096 if(base.fg == defaultfg)
3097 base.fg = defaultitalic;
3099 frcflags = FRC_ITALIC;
3100 } else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
3101 if(base.fg == defaultfg)
3102 base.fg = defaultitalic;
3104 frcflags = FRC_ITALICBOLD;
3105 } else if(base.mode & ATTR_UNDERLINE) {
3106 if(base.fg == defaultfg)
3107 base.fg = defaultunderline;
3110 if(IS_TRUECOL(base.fg)) {
3111 colfg.alpha = 0xffff;
3112 colfg.red = TRUERED(base.fg);
3113 colfg.green = TRUEGREEN(base.fg);
3114 colfg.blue = TRUEBLUE(base.fg);
3115 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
3118 fg = &dc.col[base.fg];
3121 if(IS_TRUECOL(base.bg)) {
3122 colbg.alpha = 0xffff;
3123 colbg.green = TRUEGREEN(base.bg);
3124 colbg.red = TRUERED(base.bg);
3125 colbg.blue = TRUEBLUE(base.bg);
3126 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
3129 bg = &dc.col[base.bg];
3132 if(base.mode & ATTR_BOLD) {
3133 if(BETWEEN(base.fg, 0, 7)) {
3134 /* basic system colors */
3135 fg = &dc.col[base.fg + 8];
3136 } else if(BETWEEN(base.fg, 16, 195)) {
3138 fg = &dc.col[base.fg + 36];
3139 } else if(BETWEEN(base.fg, 232, 251)) {
3141 fg = &dc.col[base.fg + 4];
3144 * Those ranges will not be brightened:
3145 * 8 - 15 – bright system colors
3146 * 196 - 231 – highest 256 color cube
3147 * 252 - 255 – brightest colors in greyscale
3150 frcflags = FRC_BOLD;
3153 if(IS_SET(MODE_REVERSE)) {
3154 if(fg == &dc.col[defaultfg]) {
3155 fg = &dc.col[defaultbg];
3157 colfg.red = ~fg->color.red;
3158 colfg.green = ~fg->color.green;
3159 colfg.blue = ~fg->color.blue;
3160 colfg.alpha = fg->color.alpha;
3161 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
3166 if(bg == &dc.col[defaultbg]) {
3167 bg = &dc.col[defaultfg];
3169 colbg.red = ~bg->color.red;
3170 colbg.green = ~bg->color.green;
3171 colbg.blue = ~bg->color.blue;
3172 colbg.alpha = bg->color.alpha;
3173 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
3179 if(base.mode & ATTR_REVERSE) {
3185 if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
3188 /* Intelligent cleaning up of the borders. */
3190 xclear(0, (y == 0)? 0 : winy, borderpx,
3191 winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
3193 if(x + charlen >= term.col) {
3194 xclear(winx + width, (y == 0)? 0 : winy, xw.w,
3195 ((y >= term.row-1)? xw.h : (winy + xw.ch)));
3198 xclear(winx, 0, winx + width, borderpx);
3200 xclear(winx, winy + xw.ch, winx + width, xw.h);
3202 /* Clean up the region we want to draw to. */
3203 XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
3205 /* Set the clip region because Xft is sometimes dirty. */
3210 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
3212 for(xp = winx; bytelen > 0;) {
3214 * Search for the range in the to be printed string of glyphs
3215 * that are in the main font. Then print that range. If
3216 * some glyph is found that is not in the font, do the
3222 oneatatime = font->width != xw.cw;
3225 u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
3229 doesexist = XftCharExists(xw.dpy, font->match, unicodep);
3230 if(oneatatime || !doesexist || bytelen <= 0) {
3231 if(oneatatime || bytelen <= 0) {
3239 XftDrawStringUtf8(xw.draw, fg,
3241 winy + font->ascent,
3259 /* Search the font cache. */
3260 for(i = 0; i < frclen; i++) {
3261 if(XftCharExists(xw.dpy, frc[i].font, unicodep)
3262 && frc[i].flags == frcflags) {
3267 /* Nothing was found. */
3271 fcsets[0] = font->set;
3274 * Nothing was found in the cache. Now use
3275 * some dozen of Fontconfig calls to get the
3276 * font for one single character.
3278 * Xft and fontconfig are design failures.
3280 fcpattern = FcPatternDuplicate(font->pattern);
3281 fccharset = FcCharSetCreate();
3283 FcCharSetAddChar(fccharset, unicodep);
3284 FcPatternAddCharSet(fcpattern, FC_CHARSET,
3286 FcPatternAddBool(fcpattern, FC_SCALABLE,
3289 FcConfigSubstitute(0, fcpattern,
3291 FcDefaultSubstitute(fcpattern);
3293 fontpattern = FcFontSetMatch(0, fcsets,
3294 FcTrue, fcpattern, &fcres);
3297 * Overwrite or create the new cache entry.
3299 if(frclen >= LEN(frc)) {
3300 frclen = LEN(frc) - 1;
3301 XftFontClose(xw.dpy, frc[frclen].font);
3304 frc[frclen].font = XftFontOpenPattern(xw.dpy,
3306 frc[frclen].flags = frcflags;
3311 FcPatternDestroy(fcpattern);
3312 FcCharSetDestroy(fccharset);
3315 XftDrawStringUtf8(xw.draw, fg, frc[i].font,
3316 xp, winy + frc[i].font->ascent,
3317 (FcChar8 *)u8c, u8cblen);
3319 xp += xw.cw * wcwidth(unicodep);
3323 * This is how the loop above actually should be. Why does the
3324 * application have to care about font details?
3326 * I have to repeat: Xft and Fontconfig are design failures.
3329 XftDrawStringUtf8(xw.draw, fg, font->set, winx,
3330 winy + font->ascent, (FcChar8 *)s, bytelen);
3333 if(base.mode & ATTR_UNDERLINE) {
3334 XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
3338 /* Reset clip to none. */
3339 XftDrawSetClip(xw.draw, 0);
3344 static int oldx = 0, oldy = 0;
3345 int sl, width, curx;
3346 Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
3348 LIMIT(oldx, 0, term.col-1);
3349 LIMIT(oldy, 0, term.row-1);
3353 /* adjust position if in dummy */
3354 if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
3356 if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
3359 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
3361 /* remove the old cursor */
3362 sl = utf8len(term.line[oldy][oldx].c);
3363 width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
3364 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
3367 /* draw the new one */
3368 if(!(IS_SET(MODE_HIDE))) {
3369 if(xw.state & WIN_FOCUSED) {
3370 if(IS_SET(MODE_REVERSE)) {
3371 g.mode |= ATTR_REVERSE;
3377 width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
3379 xdraws(g.c, g, term.c.x, term.c.y, width, sl);
3381 XftDrawRect(xw.draw, &dc.col[defaultcs],
3382 borderpx + curx * xw.cw,
3383 borderpx + term.c.y * xw.ch,
3385 XftDrawRect(xw.draw, &dc.col[defaultcs],
3386 borderpx + curx * xw.cw,
3387 borderpx + term.c.y * xw.ch,
3389 XftDrawRect(xw.draw, &dc.col[defaultcs],
3390 borderpx + (curx + 1) * xw.cw - 1,
3391 borderpx + term.c.y * xw.ch,
3393 XftDrawRect(xw.draw, &dc.col[defaultcs],
3394 borderpx + curx * xw.cw,
3395 borderpx + (term.c.y + 1) * xw.ch - 1,
3398 oldx = curx, oldy = term.c.y;
3404 xsettitle(char *p) {
3407 Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
3409 XSetWMName(xw.dpy, xw.win, &prop);
3410 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
3416 xsettitle(opt_title ? opt_title : "st");
3420 redraw(int timeout) {
3421 struct timespec tv = {0, timeout * 1000};
3426 nanosleep(&tv, NULL);
3427 XSync(xw.dpy, False); /* necessary for a good tput flash */
3433 drawregion(0, 0, term.col, term.row);
3434 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
3436 XSetForeground(xw.dpy, dc.gc,
3437 dc.col[IS_SET(MODE_REVERSE)?
3438 defaultfg : defaultbg].pixel);
3442 drawregion(int x1, int y1, int x2, int y2) {
3443 int ic, ib, x, y, ox, sl;
3445 char buf[DRAW_BUF_SIZ];
3446 bool ena_sel = sel.ob.x != -1;
3449 if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
3452 if(!(xw.state & WIN_VISIBLE))
3455 for(y = y1; y < y2; y++) {
3459 xtermclear(0, y, term.col, y);
3461 base = term.line[y][0];
3463 for(x = x1; x < x2; x++) {
3464 new = term.line[y][x];
3465 if(new.mode == ATTR_WDUMMY)
3467 if(ena_sel && selected(x, y))
3468 new.mode ^= ATTR_REVERSE;
3469 if(ib > 0 && (ATTRCMP(base, new)
3470 || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
3471 xdraws(buf, base, ox, y, ic, ib);
3479 sl = utf8decode(new.c, &unicodep, UTF_SIZ);
3480 memcpy(buf+ib, new.c, sl);
3482 ic += (new.mode & ATTR_WIDE)? 2 : 1;
3485 xdraws(buf, base, ox, y, ic, ib);
3491 expose(XEvent *ev) {
3492 XExposeEvent *e = &ev->xexpose;
3494 if(xw.state & WIN_REDRAW) {
3496 xw.state &= ~WIN_REDRAW;
3502 visibility(XEvent *ev) {
3503 XVisibilityEvent *e = &ev->xvisibility;
3505 if(e->state == VisibilityFullyObscured) {
3506 xw.state &= ~WIN_VISIBLE;
3507 } else if(!(xw.state & WIN_VISIBLE)) {
3508 /* need a full redraw for next Expose, not just a buf copy */
3509 xw.state |= WIN_VISIBLE | WIN_REDRAW;
3515 xw.state &= ~WIN_VISIBLE;
3519 xsetpointermotion(int set) {
3520 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
3521 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
3525 xseturgency(int add) {
3526 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
3528 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
3529 XSetWMHints(xw.dpy, xw.win, h);
3535 XFocusChangeEvent *e = &ev->xfocus;
3537 if(e->mode == NotifyGrab)
3540 if(ev->type == FocusIn) {
3541 XSetICFocus(xw.xic);
3542 xw.state |= WIN_FOCUSED;
3544 if(IS_SET(MODE_FOCUS))
3545 ttywrite("\033[I", 3);
3547 XUnsetICFocus(xw.xic);
3548 xw.state &= ~WIN_FOCUSED;
3549 if(IS_SET(MODE_FOCUS))
3550 ttywrite("\033[O", 3);
3555 match(uint mask, uint state) {
3556 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
3560 numlock(const Arg *dummy) {
3565 kmap(KeySym k, uint state) {
3569 /* Check for mapped keys out of X11 function keys. */
3570 for(i = 0; i < LEN(mappedkeys); i++) {
3571 if(mappedkeys[i] == k)
3574 if(i == LEN(mappedkeys)) {
3575 if((k & 0xFFFF) < 0xFD00)
3579 for(kp = key; kp < key + LEN(key); kp++) {
3583 if(!match(kp->mask, state))
3586 if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
3588 if(term.numlock && kp->appkey == 2)
3591 if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
3594 if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
3604 kpress(XEvent *ev) {
3605 XKeyEvent *e = &ev->xkey;
3607 char buf[32], *customkey;
3613 if(IS_SET(MODE_KBDLOCK))
3616 len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
3618 for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
3619 if(ksym == bp->keysym && match(bp->mod, e->state)) {
3620 bp->func(&(bp->arg));
3625 /* 2. custom keys from config.h */
3626 if((customkey = kmap(ksym, e->state))) {
3627 ttysend(customkey, strlen(customkey));
3631 /* 3. composed string from input method */
3634 if(len == 1 && e->state & Mod1Mask) {
3635 if(IS_SET(MODE_8BIT)) {
3638 len = utf8encode(c, buf, UTF_SIZ);
3651 cmessage(XEvent *e) {
3654 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
3656 if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
3657 if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
3658 xw.state |= WIN_FOCUSED;
3660 } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
3661 xw.state &= ~WIN_FOCUSED;
3663 } else if(e->xclient.data.l[0] == xw.wmdeletewin) {
3664 /* Send SIGHUP to shell */
3671 cresize(int width, int height) {
3679 col = (xw.w - 2 * borderpx) / xw.cw;
3680 row = (xw.h - 2 * borderpx) / xw.ch;
3689 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
3692 cresize(e->xconfigure.width, e->xconfigure.height);
3698 int w = xw.w, h = xw.h;
3700 int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
3701 struct timeval drawtimeout, *tv = NULL, now, last, lastblink;
3703 /* Waiting for window mapping */
3705 XNextEvent(xw.dpy, &ev);
3706 if(ev.type == ConfigureNotify) {
3707 w = ev.xconfigure.width;
3708 h = ev.xconfigure.height;
3709 } else if(ev.type == MapNotify) {
3718 cresize(xw.fw, xw.fh);
3720 gettimeofday(&last, NULL);
3723 for(xev = actionfps;;) {
3727 FD_SET(cmdfd, &rfd);
3730 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
3733 die("select failed: %s\n", strerror(errno));
3735 if(FD_ISSET(cmdfd, &rfd)) {
3738 blinkset = tattrset(ATTR_BLINK);
3740 MODBIT(term.mode, 0, MODE_BLINK);
3744 if(FD_ISSET(xfd, &rfd))
3747 gettimeofday(&now, NULL);
3748 drawtimeout.tv_sec = 0;
3749 drawtimeout.tv_usec = (1000/xfps) * 1000;
3753 if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
3754 tsetdirtattr(ATTR_BLINK);
3755 term.mode ^= MODE_BLINK;
3759 deltatime = TIMEDIFF(now, last);
3760 if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
3767 while(XPending(xw.dpy)) {
3768 XNextEvent(xw.dpy, &ev);
3769 if(XFilterEvent(&ev, None))
3771 if(handler[ev.type])
3772 (handler[ev.type])(&ev);
3778 if(xev && !FD_ISSET(xfd, &rfd))
3780 if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
3782 if(TIMEDIFF(now, lastblink) \
3784 drawtimeout.tv_usec = 1;
3786 drawtimeout.tv_usec = (1000 * \
3801 die("%s " VERSION " (c) 2010-2014 st engineers\n" \
3802 "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
3803 " [-t title] [-w windowid] [-e command ...]\n", argv0);
3807 main(int argc, char *argv[]) {
3812 xw.fw = xw.fh = xw.fx = xw.fy = 0;
3817 allowaltscreen = false;
3820 opt_class = EARGF(usage());
3823 /* eat all remaining arguments */
3826 if(argv[1] != NULL && opt_title == NULL) {
3827 titles = xstrdup(argv[1]);
3828 opt_title = basename(titles);
3833 opt_font = EARGF(usage());
3836 bitm = XParseGeometry(EARGF(usage()), &xr, &yr, &wr, &hr);
3841 if(bitm & WidthValue)
3843 if(bitm & HeightValue)
3845 if(bitm & XNegative && xw.fx == 0)
3847 if(bitm & YNegative && xw.fy == 0)
3850 if(xw.fh != 0 && xw.fw != 0)
3854 opt_io = EARGF(usage());
3857 opt_title = EARGF(usage());
3860 opt_embed = EARGF(usage());
3868 setlocale(LC_CTYPE, "");
3869 XSetLocaleModifiers("");