1 /* See LICENSE for licence details. */
2 #define _XOPEN_SOURCE 600
13 #include <sys/ioctl.h>
14 #include <sys/select.h>
16 #include <sys/types.h>
19 #include <X11/Xatom.h>
21 #include <X11/Xutil.h>
22 #include <X11/cursorfont.h>
23 #include <X11/keysym.h>
30 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
32 #elif defined(__FreeBSD__) || defined(__DragonFly__)
37 "st-" VERSION ", (c) 2010-2011 st engineers\n" \
38 "usage: st [-t title] [-c class] [-w windowid] [-v] [-e command...]\n"
41 #define ESC_TITLE_SIZ 256
42 #define ESC_BUF_SIZ 256
43 #define ESC_ARG_SIZ 16
44 #define DRAW_BUF_SIZ 1024
47 #define SERRNO strerror(errno)
48 #define MIN(a, b) ((a) < (b) ? (a) : (b))
49 #define MAX(a, b) ((a) < (b) ? (b) : (a))
50 #define LEN(a) (sizeof(a) / sizeof(a[0]))
51 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
52 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
53 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
54 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
55 #define IS_SET(flag) (term.mode & (flag))
56 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
57 #define X2COL(x) (((x) - BORDER)/xw.cw)
58 #define Y2ROW(y) (((y) - BORDER)/xw.ch)
60 /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
61 enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
62 enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
63 CURSOR_SAVE, CURSOR_LOAD };
64 enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
65 enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
66 enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
67 MODE_CRLF=16, MODE_MOUSEBTN=32, MODE_MOUSEMOTION=64, MODE_MOUSE=32|64, MODE_REVERSE=128 };
68 enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
69 enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
72 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
75 char c[UTF_SIZ]; /* character code */
76 char mode; /* attribute flags */
77 int fg; /* foreground */
78 int bg; /* background */
79 char state; /* state flags */
85 Glyph attr; /* current char attributes */
91 /* CSI Escape sequence structs */
92 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
94 char buf[ESC_BUF_SIZ]; /* raw string */
95 int len; /* raw string length */
98 int narg; /* nb of args */
102 /* Internal representation of the screen */
104 int row; /* nb row */
105 int col; /* nb col */
106 Line* line; /* screen */
107 Line* alt; /* alternate screen */
108 TCursor c; /* cursor */
109 int top; /* top scroll limit */
110 int bot; /* bottom scroll limit */
111 int mode; /* terminal mode flags */
112 int esc; /* escape state flags */
113 char title[ESC_TITLE_SIZ];
117 /* Purely graphic info */
126 int w; /* window width */
127 int h; /* window height */
128 int bufw; /* pixmap width */
129 int bufh; /* pixmap height */
130 int ch; /* char height */
131 int cw; /* char width */
132 char state; /* focus, redraw, visible */
141 /* Drawing Context */
143 unsigned long col[256];
154 /* TODO: use better name for vars... */
159 struct {int x, y;} b, e;
162 struct timeval tclick1;
163 struct timeval tclick2;
168 static void die(const char*, ...);
169 static void draw(void);
170 static void drawregion(int, int, int, int);
171 static void execsh(void);
172 static void sigchld(int);
173 static void run(void);
175 static void csidump(void);
176 static void csihandle(void);
177 static void csiparse(void);
178 static void csireset(void);
180 static void tclearregion(int, int, int, int);
181 static void tcursor(int);
182 static void tdeletechar(int);
183 static void tdeleteline(int);
184 static void tinsertblank(int);
185 static void tinsertblankline(int);
186 static void tmoveto(int, int);
187 static void tnew(int, int);
188 static void tnewline(int);
189 static void tputtab(void);
190 static void tputc(char*);
191 static void treset(void);
192 static int tresize(int, int);
193 static void tscrollup(int, int);
194 static void tscrolldown(int, int);
195 static void tsetattr(int*, int);
196 static void tsetchar(char*);
197 static void tsetscroll(int, int);
198 static void tswapscreen(void);
200 static void ttynew(void);
201 static void ttyread(void);
202 static void ttyresize(int, int);
203 static void ttywrite(const char *, size_t);
205 static void xdraws(char *, Glyph, int, int, int, int);
206 static void xhints(void);
207 static void xclear(int, int, int, int);
208 static void xdrawcursor(void);
209 static void xinit(void);
210 static void xloadcols(void);
211 static void xseturgency(int);
212 static void xsetsel(char*);
213 static void xresize(int, int);
215 static void expose(XEvent *);
216 static void visibility(XEvent *);
217 static void unmap(XEvent *);
218 static char* kmap(KeySym, unsigned int state);
219 static void kpress(XEvent *);
220 static void resize(XEvent *);
221 static void focus(XEvent *);
222 static void brelease(XEvent *);
223 static void bpress(XEvent *);
224 static void bmotion(XEvent *);
225 static void selnotify(XEvent *);
226 static void selrequest(XEvent *);
228 static void selinit(void);
229 static inline int selected(int, int);
230 static void selcopy(void);
231 static void selpaste();
233 static int utf8decode(char *, long *);
234 static int utf8encode(long *, char *);
235 static int utf8size(char *);
236 static int isfullutf8(char *, int);
238 static void (*handler[LASTEvent])(XEvent *) = {
240 [ConfigureNotify] = resize,
241 [VisibilityNotify] = visibility,
242 [UnmapNotify] = unmap,
244 [EnterNotify] = focus,
245 [LeaveNotify] = focus,
248 [MotionNotify] = bmotion,
249 [ButtonPress] = bpress,
250 [ButtonRelease] = brelease,
251 [SelectionNotify] = selnotify,
252 [SelectionRequest] = selrequest,
259 static CSIEscape escseq;
262 static Selection sel;
263 static char **opt_cmd = NULL;
264 static char *opt_title = NULL;
265 static char *opt_embed = NULL;
266 static char *opt_class = NULL;
269 utf8decode(char *s, long *u) {
275 if(~c&B7) { /* 0xxxxxxx */
278 } else if((c&(B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
279 *u = c&(B4|B3|B2|B1|B0);
281 } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
282 *u = c&(B3|B2|B1|B0);
284 } else if((c&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
289 for(i=n,++s; i>0; --i,++rtn,++s) {
291 if((c&(B7|B6)) != B7) /* 10xxxxxx */
294 *u |= c&(B5|B4|B3|B2|B1|B0);
296 if((n == 1 && *u < 0x80) ||
297 (n == 2 && *u < 0x800) ||
298 (n == 3 && *u < 0x10000) ||
299 (*u >= 0xD800 && *u <= 0xDFFF))
308 utf8encode(long *u, char *s) {
313 sp = (unsigned char*) s;
316 *sp = uc; /* 0xxxxxxx */
318 } else if(*u < 0x800) {
319 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
321 } else if(uc < 0x10000) {
322 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
324 } else if(uc <= 0x10FFFF) {
325 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
330 for(i=n,++sp; i>0; --i,++sp)
331 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
341 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
342 UTF-8 otherwise return 0 */
344 isfullutf8(char *s, int b) {
345 unsigned char *c1, *c2, *c3;
347 c1 = (unsigned char *) s;
348 c2 = (unsigned char *) ++s;
349 c3 = (unsigned char *) ++s;
352 else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
354 else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
356 ((b == 2) && (*c2&(B7|B6)) == B7)))
358 else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
360 ((b == 2) && (*c2&(B7|B6)) == B7) ||
361 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
369 unsigned char c = *s;
373 else if((c&(B7|B6|B5)) == (B7|B6))
375 else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
383 sel.tclick1.tv_sec = 0;
384 sel.tclick1.tv_usec = 0;
388 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
389 if(sel.xtarget == None)
390 sel.xtarget = XA_STRING;
394 selected(int x, int y) {
395 if(sel.ey == y && sel.by == y) {
396 int bx = MIN(sel.bx, sel.ex);
397 int ex = MAX(sel.bx, sel.ex);
398 return BETWEEN(x, bx, ex);
400 return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
401 || (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
405 getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
407 *b = e->xbutton.button;
409 *x = X2COL(e->xbutton.x);
410 *y = Y2ROW(e->xbutton.y);
411 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
412 sel.b.y = MIN(sel.by, sel.ey);
413 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
414 sel.e.y = MAX(sel.by, sel.ey);
418 mousereport(XEvent *e) {
419 int x = X2COL(e->xbutton.x);
420 int y = Y2ROW(e->xbutton.y);
421 int button = e->xbutton.button;
422 int state = e->xbutton.state;
423 char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
424 static int ob, ox, oy;
427 if(e->xbutton.type == MotionNotify) {
428 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
432 } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
438 if(e->xbutton.type == ButtonPress) {
444 buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
445 + (state & Mod4Mask ? 8 : 0)
446 + (state & ControlMask ? 16 : 0);
448 ttywrite(buf, sizeof(buf));
453 if(IS_SET(MODE_MOUSE))
455 else if(e->xbutton.button == Button1) {
457 sel.ex = sel.bx = X2COL(e->xbutton.x);
458 sel.ey = sel.by = Y2ROW(e->xbutton.y);
465 int x, y, sz, sl, ls = 0;
470 sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
471 ptr = str = malloc(sz);
472 for(y = 0; y < term.row; y++) {
473 for(x = 0; x < term.col; x++)
474 if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
475 sl = utf8size(term.line[y][x].c);
476 memcpy(ptr, term.line[y][x].c, sl);
479 if(ls && y < sel.e.y)
488 selnotify(XEvent *e) {
489 unsigned long nitems, ofs, rem;
496 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
497 False, AnyPropertyType, &type, &format,
498 &nitems, &rem, &data)) {
499 fprintf(stderr, "Clipboard allocation failed\n");
502 ttywrite((const char *) data, nitems * format / 8);
504 /* number of 32-bit chunks returned */
505 ofs += nitems * format / 32;
511 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
515 selrequest(XEvent *e) {
516 XSelectionRequestEvent *xsre;
520 xsre = (XSelectionRequestEvent *) e;
521 xev.type = SelectionNotify;
522 xev.requestor = xsre->requestor;
523 xev.selection = xsre->selection;
524 xev.target = xsre->target;
525 xev.time = xsre->time;
529 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
530 if(xsre->target == xa_targets) {
531 /* respond with the supported type */
532 Atom string = sel.xtarget;
533 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
534 XA_ATOM, 32, PropModeReplace,
535 (unsigned char *) &string, 1);
536 xev.property = xsre->property;
537 } else if(xsre->target == sel.xtarget) {
538 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
539 xsre->target, 8, PropModeReplace,
540 (unsigned char *) sel.clip, strlen(sel.clip));
541 xev.property = xsre->property;
544 /* all done, send a notification to the listener */
545 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
546 fprintf(stderr, "Error sending SelectionNotify event\n");
551 /* register the selection for both the clipboard and the primary */
557 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
559 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
560 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
566 brelease(XEvent *e) {
567 if(IS_SET(MODE_MOUSE)) {
571 if(e->xbutton.button == Button2)
573 else if(e->xbutton.button == Button1) {
575 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
576 if(sel.bx == sel.ex && sel.by == sel.ey) {
579 gettimeofday(&now, NULL);
581 if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
582 /* triple click on the line */
583 sel.b.x = sel.bx = 0;
584 sel.e.x = sel.ex = term.col;
585 sel.b.y = sel.e.y = sel.ey;
587 } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
588 /* double click to select word */
590 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
591 term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
593 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
594 term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
596 sel.b.y = sel.e.y = sel.ey;
602 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
603 gettimeofday(&sel.tclick1, NULL);
609 if(IS_SET(MODE_MOUSE)) {
614 int oldey = sel.ey, oldex = sel.ex;
615 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
617 if(oldey != sel.ey || oldex != sel.ex) {
618 int starty = MIN(oldey, sel.ey);
619 int endy = MAX(oldey, sel.ey);
620 drawregion(0, (starty > 0 ? starty : 0), term.col, (endy < term.row ? endy+1 : term.row));
626 die(const char *errstr, ...) {
629 va_start(ap, errstr);
630 vfprintf(stderr, errstr, ap);
638 char *envshell = getenv("SHELL");
640 DEFAULT(envshell, "sh");
641 putenv("TERM="TNAME);
642 args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
643 execvp(args[0], args);
650 if(waitpid(pid, &stat, 0) < 0)
651 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
653 exit(WEXITSTATUS(stat));
662 /* seems to work fine on linux, openbsd and freebsd */
663 struct winsize w = {term.row, term.col, 0, 0};
664 if(openpty(&m, &s, NULL, NULL, &w) < 0)
665 die("openpty failed: %s\n", SERRNO);
667 switch(pid = fork()) {
669 die("fork failed\n");
672 setsid(); /* create a new process group */
673 dup2(s, STDIN_FILENO);
674 dup2(s, STDOUT_FILENO);
675 dup2(s, STDERR_FILENO);
676 if(ioctl(s, TIOCSCTTY, NULL) < 0)
677 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
685 signal(SIGCHLD, sigchld);
692 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
694 fprintf(stderr, "\n");
699 static char buf[BUFSIZ];
700 static int buflen = 0;
703 int charsize; /* size of utf8 char in bytes */
707 /* append read bytes to unprocessed bytes */
708 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
709 die("Couldn't read from shell: %s\n", SERRNO);
711 /* process every complete utf8 char */
714 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
715 charsize = utf8decode(ptr, &utf8c);
716 utf8encode(&utf8c, s);
722 /* keep any uncomplete utf8 char for the next call */
723 memmove(buf, ptr, buflen);
727 ttywrite(const char *s, size_t n) {
728 if(write(cmdfd, s, n) == -1)
729 die("write error on tty: %s\n", SERRNO);
733 ttyresize(int x, int y) {
738 w.ws_xpixel = w.ws_ypixel = 0;
739 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
740 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
747 if(mode == CURSOR_SAVE)
749 else if(mode == CURSOR_LOAD)
750 term.c = c, tmoveto(c.x, c.y);
759 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
761 term.top = 0, term.bot = term.row - 1;
762 term.mode = MODE_WRAP;
763 tclearregion(0, 0, term.col-1, term.row-1);
767 tnew(int col, int row) {
768 /* set screen size */
769 term.row = row, term.col = col;
770 term.line = malloc(term.row * sizeof(Line));
771 term.alt = malloc(term.row * sizeof(Line));
772 for(row = 0; row < term.row; row++) {
773 term.line[row] = malloc(term.col * sizeof(Glyph));
774 term.alt [row] = malloc(term.col * sizeof(Glyph));
782 Line* tmp = term.line;
783 term.line = term.alt;
785 term.mode ^= MODE_ALTSCREEN;
789 tscrolldown(int orig, int n) {
793 LIMIT(n, 0, term.bot-orig+1);
795 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
797 for(i = term.bot; i >= orig+n; i--) {
799 term.line[i] = term.line[i-n];
800 term.line[i-n] = temp;
805 tscrollup(int orig, int n) {
808 LIMIT(n, 0, term.bot-orig+1);
810 tclearregion(0, orig, term.col-1, orig+n-1);
812 for(i = orig; i <= term.bot-n; i++) {
814 term.line[i] = term.line[i+n];
815 term.line[i+n] = temp;
820 tnewline(int first_col) {
823 tscrollup(term.top, 1);
826 tmoveto(first_col ? 0 : term.c.x, y);
832 char *p = escseq.buf;
836 escseq.priv = 1, p++;
838 while(p < escseq.buf+escseq.len) {
840 escseq.arg[escseq.narg] *= 10;
841 escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */;
843 if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ)
854 tmoveto(int x, int y) {
855 LIMIT(x, 0, term.col-1);
856 LIMIT(y, 0, term.row-1);
857 term.c.state &= ~CURSOR_WRAPNEXT;
864 term.line[term.c.y][term.c.x] = term.c.attr;
865 memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
866 term.line[term.c.y][term.c.x].state |= GLYPH_SET;
870 tclearregion(int x1, int y1, int x2, int y2) {
874 temp = x1, x1 = x2, x2 = temp;
876 temp = y1, y1 = y2, y2 = temp;
878 LIMIT(x1, 0, term.col-1);
879 LIMIT(x2, 0, term.col-1);
880 LIMIT(y1, 0, term.row-1);
881 LIMIT(y2, 0, term.row-1);
883 for(y = y1; y <= y2; y++)
884 for(x = x1; x <= x2; x++)
885 term.line[y][x].state = 0;
890 int src = term.c.x + n;
892 int size = term.col - src;
894 if(src >= term.col) {
895 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
898 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
899 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
903 tinsertblank(int n) {
906 int size = term.col - dst;
908 if(dst >= term.col) {
909 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
912 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
913 tclearregion(src, term.c.y, dst - 1, term.c.y);
917 tinsertblankline(int n) {
918 if(term.c.y < term.top || term.c.y > term.bot)
921 tscrolldown(term.c.y, n);
926 if(term.c.y < term.top || term.c.y > term.bot)
929 tscrollup(term.c.y, n);
933 tsetattr(int *attr, int l) {
936 for(i = 0; i < l; i++) {
939 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
940 term.c.attr.fg = DefaultFG;
941 term.c.attr.bg = DefaultBG;
944 term.c.attr.mode |= ATTR_BOLD;
947 term.c.attr.mode |= ATTR_UNDERLINE;
950 term.c.attr.mode |= ATTR_REVERSE;
953 term.c.attr.mode &= ~ATTR_BOLD;
956 term.c.attr.mode &= ~ATTR_UNDERLINE;
959 term.c.attr.mode &= ~ATTR_REVERSE;
962 if(i + 2 < l && attr[i + 1] == 5) {
964 if(BETWEEN(attr[i], 0, 255))
965 term.c.attr.fg = attr[i];
967 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
970 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
973 term.c.attr.fg = DefaultFG;
976 if(i + 2 < l && attr[i + 1] == 5) {
978 if(BETWEEN(attr[i], 0, 255))
979 term.c.attr.bg = attr[i];
981 fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
984 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
987 term.c.attr.bg = DefaultBG;
990 if(BETWEEN(attr[i], 30, 37))
991 term.c.attr.fg = attr[i] - 30;
992 else if(BETWEEN(attr[i], 40, 47))
993 term.c.attr.bg = attr[i] - 40;
994 else if(BETWEEN(attr[i], 90, 97))
995 term.c.attr.fg = attr[i] - 90 + 8;
996 else if(BETWEEN(attr[i], 100, 107))
997 term.c.attr.fg = attr[i] - 100 + 8;
999 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
1007 tsetscroll(int t, int b) {
1010 LIMIT(t, 0, term.row-1);
1011 LIMIT(b, 0, term.row-1);
1023 switch(escseq.mode) {
1026 fprintf(stderr, "erresc: unknown csi ");
1030 case '@': /* ICH -- Insert <n> blank char */
1031 DEFAULT(escseq.arg[0], 1);
1032 tinsertblank(escseq.arg[0]);
1034 case 'A': /* CUU -- Cursor <n> Up */
1036 DEFAULT(escseq.arg[0], 1);
1037 tmoveto(term.c.x, term.c.y-escseq.arg[0]);
1039 case 'B': /* CUD -- Cursor <n> Down */
1040 DEFAULT(escseq.arg[0], 1);
1041 tmoveto(term.c.x, term.c.y+escseq.arg[0]);
1043 case 'C': /* CUF -- Cursor <n> Forward */
1045 DEFAULT(escseq.arg[0], 1);
1046 tmoveto(term.c.x+escseq.arg[0], term.c.y);
1048 case 'D': /* CUB -- Cursor <n> Backward */
1049 DEFAULT(escseq.arg[0], 1);
1050 tmoveto(term.c.x-escseq.arg[0], term.c.y);
1052 case 'E': /* CNL -- Cursor <n> Down and first col */
1053 DEFAULT(escseq.arg[0], 1);
1054 tmoveto(0, term.c.y+escseq.arg[0]);
1056 case 'F': /* CPL -- Cursor <n> Up and first col */
1057 DEFAULT(escseq.arg[0], 1);
1058 tmoveto(0, term.c.y-escseq.arg[0]);
1060 case 'G': /* CHA -- Move to <col> */
1061 case '`': /* XXX: HPA -- same? */
1062 DEFAULT(escseq.arg[0], 1);
1063 tmoveto(escseq.arg[0]-1, term.c.y);
1065 case 'H': /* CUP -- Move to <row> <col> */
1066 case 'f': /* XXX: HVP -- same? */
1067 DEFAULT(escseq.arg[0], 1);
1068 DEFAULT(escseq.arg[1], 1);
1069 tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
1071 /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
1072 case 'J': /* ED -- Clear screen */
1073 switch(escseq.arg[0]) {
1075 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1076 if(term.c.y < term.row-1)
1077 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1081 tclearregion(0, 0, term.col-1, term.c.y-1);
1082 tclearregion(0, term.c.y, term.c.x, term.c.y);
1085 tclearregion(0, 0, term.col-1, term.row-1);
1091 case 'K': /* EL -- Clear line */
1092 switch(escseq.arg[0]) {
1094 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1097 tclearregion(0, term.c.y, term.c.x, term.c.y);
1100 tclearregion(0, term.c.y, term.col-1, term.c.y);
1104 case 'S': /* SU -- Scroll <n> line up */
1105 DEFAULT(escseq.arg[0], 1);
1106 tscrollup(term.top, escseq.arg[0]);
1108 case 'T': /* SD -- Scroll <n> line down */
1109 DEFAULT(escseq.arg[0], 1);
1110 tscrolldown(term.top, escseq.arg[0]);
1112 case 'L': /* IL -- Insert <n> blank lines */
1113 DEFAULT(escseq.arg[0], 1);
1114 tinsertblankline(escseq.arg[0]);
1116 case 'l': /* RM -- Reset Mode */
1118 switch(escseq.arg[0]) {
1120 term.mode &= ~MODE_APPKEYPAD;
1122 case 5: /* DECSCNM -- Remove reverse video */
1123 if(IS_SET(MODE_REVERSE)) {
1124 term.mode &= ~MODE_REVERSE;
1129 term.mode &= ~MODE_WRAP;
1131 case 12: /* att610 -- Stop blinking cursor (IGNORED) */
1134 term.mode &= ~MODE_CRLF;
1137 term.c.state |= CURSOR_HIDE;
1139 case 1000: /* disable X11 xterm mouse reporting */
1140 term.mode &= ~MODE_MOUSEBTN;
1143 term.mode &= ~MODE_MOUSEMOTION;
1145 case 1049: /* = 1047 and 1048 */
1148 if(IS_SET(MODE_ALTSCREEN)) {
1149 tclearregion(0, 0, term.col-1, term.row-1);
1152 if(escseq.arg[0] != 1049)
1155 tcursor(CURSOR_LOAD);
1161 switch(escseq.arg[0]) {
1163 term.mode &= ~MODE_INSERT;
1170 case 'M': /* DL -- Delete <n> lines */
1171 DEFAULT(escseq.arg[0], 1);
1172 tdeleteline(escseq.arg[0]);
1174 case 'X': /* ECH -- Erase <n> char */
1175 DEFAULT(escseq.arg[0], 1);
1176 tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y);
1178 case 'P': /* DCH -- Delete <n> char */
1179 DEFAULT(escseq.arg[0], 1);
1180 tdeletechar(escseq.arg[0]);
1182 /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
1183 case 'd': /* VPA -- Move to <row> */
1184 DEFAULT(escseq.arg[0], 1);
1185 tmoveto(term.c.x, escseq.arg[0]-1);
1187 case 'h': /* SM -- Set terminal mode */
1189 switch(escseq.arg[0]) {
1191 term.mode |= MODE_APPKEYPAD;
1193 case 5: /* DECSCNM -- Reverve video */
1194 if(!IS_SET(MODE_REVERSE)) {
1195 term.mode |= MODE_REVERSE;
1200 term.mode |= MODE_WRAP;
1203 term.mode |= MODE_CRLF;
1205 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1206 /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
1207 if(escseq.narg > 1 && escseq.arg[1] != 25)
1210 term.c.state &= ~CURSOR_HIDE;
1212 case 1000: /* 1000,1002: enable xterm mouse report */
1213 term.mode |= MODE_MOUSEBTN;
1216 term.mode |= MODE_MOUSEMOTION;
1218 case 1049: /* = 1047 and 1048 */
1221 if(IS_SET(MODE_ALTSCREEN))
1222 tclearregion(0, 0, term.col-1, term.row-1);
1225 if(escseq.arg[0] != 1049)
1228 tcursor(CURSOR_SAVE);
1230 default: goto unknown;
1233 switch(escseq.arg[0]) {
1235 term.mode |= MODE_INSERT;
1237 default: goto unknown;
1241 case 'm': /* SGR -- Terminal attribute (color) */
1242 tsetattr(escseq.arg, escseq.narg);
1244 case 'r': /* DECSTBM -- Set Scrolling Region */
1248 DEFAULT(escseq.arg[0], 1);
1249 DEFAULT(escseq.arg[1], term.row);
1250 tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
1254 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1255 tcursor(CURSOR_SAVE);
1257 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1258 tcursor(CURSOR_LOAD);
1266 printf("ESC [ %s", escseq.priv ? "? " : "");
1268 for(i = 0; i < escseq.narg; i++)
1269 printf("%d ", escseq.arg[i]);
1271 putchar(escseq.mode);
1277 memset(&escseq, 0, sizeof(escseq));
1282 int space = TAB - term.c.x % TAB;
1283 tmoveto(term.c.x + space, term.c.y);
1289 if(term.esc & ESC_START) {
1290 if(term.esc & ESC_CSI) {
1291 escseq.buf[escseq.len++] = ascii;
1292 if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
1294 csiparse(), csihandle();
1296 /* TODO: handle other OSC */
1297 } else if(term.esc & ESC_OSC) {
1300 term.esc = ESC_START | ESC_TITLE;
1302 } else if(term.esc & ESC_TITLE) {
1303 if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
1305 term.title[term.titlelen] = '\0';
1306 XStoreName(xw.dpy, xw.win, term.title);
1308 term.title[term.titlelen++] = ascii;
1310 } else if(term.esc & ESC_ALTCHARSET) {
1312 case '0': /* Line drawing crap */
1313 term.c.attr.mode |= ATTR_GFX;
1315 case 'B': /* Back to regular text */
1316 term.c.attr.mode &= ~ATTR_GFX;
1319 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
1325 term.esc |= ESC_CSI;
1328 term.esc |= ESC_OSC;
1331 term.esc |= ESC_ALTCHARSET;
1333 case 'D': /* IND -- Linefeed */
1334 if(term.c.y == term.bot)
1335 tscrollup(term.top, 1);
1337 tmoveto(term.c.x, term.c.y+1);
1340 case 'E': /* NEL -- Next line */
1341 tnewline(1); /* always go to first col */
1344 case 'M': /* RI -- Reverse index */
1345 if(term.c.y == term.top)
1346 tscrolldown(term.top, 1);
1348 tmoveto(term.c.x, term.c.y-1);
1351 case 'c': /* RIS -- Reset to inital state */
1355 case '=': /* DECPAM -- Application keypad */
1356 term.mode |= MODE_APPKEYPAD;
1359 case '>': /* DECPNM -- Normal keypad */
1360 term.mode &= ~MODE_APPKEYPAD;
1363 case '7': /* DECSC -- Save Cursor */
1364 tcursor(CURSOR_SAVE);
1367 case '8': /* DECRC -- Restore Cursor */
1368 tcursor(CURSOR_LOAD);
1372 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
1373 (unsigned char) ascii, isprint(ascii)?ascii:'.');
1383 tmoveto(term.c.x-1, term.c.y);
1386 tmoveto(0, term.c.y);
1391 /* go to first col if the mode is set */
1392 tnewline(IS_SET(MODE_CRLF));
1395 if(!(xw.state & WIN_FOCUSED))
1400 term.esc = ESC_START;
1403 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
1404 tnewline(1); /* always go to first col */
1406 if(term.c.x+1 < term.col)
1407 tmoveto(term.c.x+1, term.c.y);
1409 term.c.state |= CURSOR_WRAPNEXT;
1415 tresize(int col, int row) {
1417 int minrow = MIN(row, term.row);
1418 int mincol = MIN(col, term.col);
1419 int slide = term.c.y - row + 1;
1421 if(col < 1 || row < 1)
1424 /* free unneeded rows */
1427 /* slide screen to keep cursor where we expect it -
1428 * tscrollup would work here, but we can optimize to
1429 * memmove because we're freeing the earlier lines */
1430 for(/* i = 0 */; i < slide; i++) {
1434 memmove(term.line, term.line + slide, row * sizeof(Line));
1435 memmove(term.alt, term.alt + slide, row * sizeof(Line));
1437 for(i += row; i < term.row; i++) {
1442 /* resize to new height */
1443 term.line = realloc(term.line, row * sizeof(Line));
1444 term.alt = realloc(term.alt, row * sizeof(Line));
1446 /* resize each row to new width, zero-pad if needed */
1447 for(i = 0; i < minrow; i++) {
1448 term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
1449 term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
1450 for(x = mincol; x < col; x++) {
1451 term.line[i][x].state = 0;
1452 term.alt[i][x].state = 0;
1456 /* allocate any new rows */
1457 for(/* i == minrow */; i < row; i++) {
1458 term.line[i] = calloc(col, sizeof(Glyph));
1459 term.alt [i] = calloc(col, sizeof(Glyph));
1462 /* update terminal size */
1463 term.col = col, term.row = row;
1464 /* make use of the LIMIT in tmoveto */
1465 tmoveto(term.c.x, term.c.y);
1466 /* reset scrolling region */
1467 tsetscroll(0, row-1);
1472 xresize(int col, int row) {
1478 xw.bufw = MAX(1, col * xw.cw);
1479 xw.bufh = MAX(1, row * xw.ch);
1480 newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1481 XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
1482 XFreePixmap(xw.dpy, xw.buf);
1483 XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
1485 XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0,
1486 xw.bufw-oldw, MIN(xw.bufh, oldh));
1487 else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
1488 XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER,
1489 xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
1492 XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh,
1493 xw.bufw, xw.bufh-oldh);
1494 else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
1495 XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh,
1496 xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
1505 unsigned long white = WhitePixel(xw.dpy, xw.scr);
1507 for(i = 0; i < 16; i++) {
1508 if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
1510 fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
1512 dc.col[i] = color.pixel;
1515 /* same colors as xterm */
1516 for(r = 0; r < 6; r++)
1517 for(g = 0; g < 6; g++)
1518 for(b = 0; b < 6; b++) {
1519 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
1520 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
1521 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
1522 if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
1524 fprintf(stderr, "Could not allocate color %d\n", i);
1526 dc.col[i] = color.pixel;
1530 for(r = 0; r < 24; r++, i++) {
1531 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
1532 if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
1534 fprintf(stderr, "Could not allocate color %d\n", i);
1536 dc.col[i] = color.pixel;
1541 xclear(int x1, int y1, int x2, int y2) {
1542 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
1543 XFillRectangle(xw.dpy, xw.buf, dc.gc,
1544 x1 * xw.cw, y1 * xw.ch,
1545 (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
1550 XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
1551 XWMHints wm = {.flags = InputHint, .input = 1};
1553 .flags = PSize | PResizeInc | PBaseSize,
1556 .height_inc = xw.ch,
1558 .base_height = 2*BORDER,
1559 .base_width = 2*BORDER,
1561 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
1565 xinitfont(char *fontstr) {
1567 char *def, **missing;
1571 set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
1574 fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
1575 XFreeStringList(missing);
1581 xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
1582 XFontStruct **xfonts;
1586 *ascent = *descent = *lbearing = *rbearing = 0;
1587 n = XFontsOfFontSet(set, &xfonts, &font_names);
1588 for(i = 0; i < n; i++) {
1589 *ascent = MAX(*ascent, (*xfonts)->ascent);
1590 *descent = MAX(*descent, (*xfonts)->descent);
1591 *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
1592 *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
1598 initfonts(char *fontstr, char *bfontstr) {
1599 if((dc.font.set = xinitfont(fontstr)) == NULL ||
1600 (dc.bfont.set = xinitfont(bfontstr)) == NULL)
1601 die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
1602 xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
1603 &dc.font.lbearing, &dc.font.rbearing);
1604 xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
1605 &dc.bfont.lbearing, &dc.bfont.rbearing);
1610 XSetWindowAttributes attrs;
1614 if(!(xw.dpy = XOpenDisplay(NULL)))
1615 die("Can't open display\n");
1616 xw.scr = XDefaultScreen(xw.dpy);
1619 initfonts(FONT, BOLDFONT);
1621 /* XXX: Assuming same size for bold font */
1622 xw.cw = dc.font.rbearing - dc.font.lbearing;
1623 xw.ch = dc.font.ascent + dc.font.descent;
1626 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
1629 /* window - default size */
1630 xw.bufh = term.row * xw.ch;
1631 xw.bufw = term.col * xw.cw;
1632 xw.h = xw.bufh + 2*BORDER;
1633 xw.w = xw.bufw + 2*BORDER;
1635 attrs.background_pixel = dc.col[DefaultBG];
1636 attrs.border_pixel = dc.col[DefaultBG];
1637 attrs.bit_gravity = NorthWestGravity;
1638 attrs.event_mask = FocusChangeMask | KeyPressMask
1639 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1640 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
1641 | EnterWindowMask | LeaveWindowMask;
1642 attrs.colormap = xw.cmap;
1644 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
1645 xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
1646 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
1647 XDefaultVisual(xw.dpy, xw.scr),
1648 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
1651 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1655 xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1656 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
1657 | XIMStatusNothing, XNClientWindow, xw.win,
1658 XNFocusWindow, xw.win, NULL);
1660 dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
1662 /* white cursor, black outline */
1663 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
1664 XDefineCursor(xw.dpy, xw.win, cursor);
1665 XRecolorCursor(xw.dpy, cursor,
1666 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
1667 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
1669 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
1670 XMapWindow(xw.dpy, xw.win);
1676 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
1677 unsigned long xfg = dc.col[base.fg], xbg = dc.col[base.bg], temp;
1678 int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
1681 /* only switch default fg/bg if term is in RV mode */
1682 if(IS_SET(MODE_REVERSE)) {
1683 if(base.fg == DefaultFG)
1684 xfg = dc.col[DefaultBG];
1685 if(base.bg == DefaultBG)
1686 xbg = dc.col[DefaultFG];
1689 if(base.mode & ATTR_REVERSE)
1690 temp = xfg, xfg = xbg, xbg = temp;
1692 XSetBackground(xw.dpy, dc.gc, xbg);
1693 XSetForeground(xw.dpy, dc.gc, xfg);
1695 if(base.mode & ATTR_GFX) {
1696 for(i = 0; i < bytelen; i++) {
1697 char c = gfx[(unsigned int)s[i] % 256];
1700 else if(s[i] > 0x5f)
1705 XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
1706 dc.gc, winx, winy, s, bytelen);
1708 if(base.mode & ATTR_UNDERLINE)
1709 XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
1714 static int oldx = 0;
1715 static int oldy = 0;
1717 Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
1719 LIMIT(oldx, 0, term.col-1);
1720 LIMIT(oldy, 0, term.row-1);
1722 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
1723 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
1725 /* remove the old cursor */
1726 if(term.line[oldy][oldx].state & GLYPH_SET) {
1727 sl = utf8size(term.line[oldy][oldx].c);
1728 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
1730 xclear(oldx, oldy, oldx, oldy);
1732 /* draw the new one */
1733 if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
1735 if(IS_SET(MODE_REVERSE))
1736 g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
1737 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
1738 oldx = term.c.x, oldy = term.c.y;
1744 drawregion(0, 0, term.col, term.row);
1748 drawregion(int x1, int y1, int x2, int y2) {
1749 int ic, ib, x, y, ox, sl;
1751 char buf[DRAW_BUF_SIZ];
1753 if(!(xw.state & WIN_VISIBLE))
1756 xclear(x1, y1, x2-1, y2-1);
1757 for(y = y1; y < y2; y++) {
1758 base = term.line[y][0];
1760 for(x = x1; x < x2; x++) {
1761 new = term.line[y][x];
1762 if(sel.bx != -1 && *(new.c) && selected(x, y))
1763 new.mode ^= ATTR_REVERSE;
1764 if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
1765 ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
1766 xdraws(buf, base, ox, y, ic, ib);
1769 if(new.state & GLYPH_SET) {
1774 sl = utf8size(new.c);
1775 memcpy(buf+ib, new.c, sl);
1781 xdraws(buf, base, ox, y, ic, ib);
1784 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
1788 expose(XEvent *ev) {
1789 XExposeEvent *e = &ev->xexpose;
1790 if(xw.state & WIN_REDRAW) {
1792 xw.state &= ~WIN_REDRAW;
1796 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
1797 e->width, e->height, e->x, e->y);
1801 visibility(XEvent *ev) {
1802 XVisibilityEvent *e = &ev->xvisibility;
1803 if(e->state == VisibilityFullyObscured)
1804 xw.state &= ~WIN_VISIBLE;
1805 else if(!(xw.state & WIN_VISIBLE))
1806 /* need a full redraw for next Expose, not just a buf copy */
1807 xw.state |= WIN_VISIBLE | WIN_REDRAW;
1812 xw.state &= ~WIN_VISIBLE;
1816 xseturgency(int add) {
1817 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
1818 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
1819 XSetWMHints(xw.dpy, xw.win, h);
1825 if(ev->type == FocusIn || ev->type == EnterNotify) {
1826 xw.state |= WIN_FOCUSED;
1829 xw.state &= ~WIN_FOCUSED;
1834 kmap(KeySym k, unsigned int state) {
1836 for(i = 0; i < LEN(key); i++)
1837 if(key[i].k == k && (key[i].mask == 0 || key[i].mask & state))
1838 return (char*)key[i].s;
1843 kpress(XEvent *ev) {
1844 XKeyEvent *e = &ev->xkey;
1853 meta = e->state & Mod1Mask;
1854 shift = e->state & ShiftMask;
1855 len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
1857 /* 1. custom keys from config.h */
1858 if((customkey = kmap(ksym, e->state)))
1859 ttywrite(customkey, strlen(customkey));
1860 /* 2. hardcoded (overrides X lookup) */
1867 /* XXX: shift up/down doesn't work */
1868 sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
1876 if(IS_SET(MODE_CRLF))
1877 ttywrite("\r\n", 2);
1884 if(meta && len == 1)
1885 ttywrite("\033", 1);
1896 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
1899 xw.w = e->xconfigure.width;
1900 xw.h = e->xconfigure.height;
1901 col = (xw.w - 2*BORDER) / xw.cw;
1902 row = (xw.h - 2*BORDER) / xw.ch;
1903 if(col == term.col && row == term.row)
1905 if(tresize(col, row))
1907 ttyresize(col, row);
1915 int xfd = XConnectionNumber(xw.dpy);
1919 FD_SET(cmdfd, &rfd);
1921 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) {
1924 die("select failed: %s\n", SERRNO);
1926 if(FD_ISSET(cmdfd, &rfd)) {
1930 while(XPending(xw.dpy)) {
1931 XNextEvent(xw.dpy, &ev);
1932 if(XFilterEvent(&ev, xw.win))
1934 if(handler[ev.type])
1935 (handler[ev.type])(&ev);
1941 main(int argc, char *argv[]) {
1944 for(i = 1; i < argc; i++) {
1945 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
1947 if(++i < argc) opt_title = argv[i];
1950 if(++i < argc) opt_class = argv[i];
1953 if(++i < argc) opt_embed = argv[i];
1956 /* eat every remaining arguments */
1957 if(++i < argc) opt_cmd = &argv[i];
1966 setlocale(LC_CTYPE, "");