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 XEMBED_FOCUS_IN 4
42 #define XEMBED_FOCUS_OUT 5
45 #define ESC_TITLE_SIZ 256
46 #define ESC_BUF_SIZ 256
47 #define ESC_ARG_SIZ 16
48 #define DRAW_BUF_SIZ 1024
50 #define XK_NO_MOD UINT_MAX
53 #define SERRNO strerror(errno)
54 #define MIN(a, b) ((a) < (b) ? (a) : (b))
55 #define MAX(a, b) ((a) < (b) ? (b) : (a))
56 #define LEN(a) (sizeof(a) / sizeof(a[0]))
57 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
58 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
59 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
60 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
61 #define IS_SET(flag) (term.mode & (flag))
62 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
63 #define X2COL(x) (((x) - BORDER)/xw.cw)
64 #define Y2ROW(y) (((y) - BORDER)/xw.ch)
66 /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
67 enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
68 enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
69 CURSOR_SAVE, CURSOR_LOAD };
70 enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
71 enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
72 enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
73 MODE_CRLF=16, MODE_MOUSEBTN=32, MODE_MOUSEMOTION=64, MODE_MOUSE=32|64, MODE_REVERSE=128 };
74 enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
75 enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
78 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
81 char c[UTF_SIZ]; /* character code */
82 char mode; /* attribute flags */
83 int fg; /* foreground */
84 int bg; /* background */
85 char state; /* state flags */
91 Glyph attr; /* current char attributes */
97 /* CSI Escape sequence structs */
98 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
100 char buf[ESC_BUF_SIZ]; /* raw string */
101 int len; /* raw string length */
103 int arg[ESC_ARG_SIZ];
104 int narg; /* nb of args */
108 /* Internal representation of the screen */
110 int row; /* nb row */
111 int col; /* nb col */
112 Line* line; /* screen */
113 Line* alt; /* alternate screen */
114 TCursor c; /* cursor */
115 int top; /* top scroll limit */
116 int bot; /* bottom scroll limit */
117 int mode; /* terminal mode flags */
118 int esc; /* escape state flags */
119 char title[ESC_TITLE_SIZ];
123 /* Purely graphic info */
133 int w; /* window width */
134 int h; /* window height */
135 int bufw; /* pixmap width */
136 int bufh; /* pixmap height */
137 int ch; /* char height */
138 int cw; /* char width */
139 char state; /* focus, redraw, visible */
148 /* Drawing Context */
150 unsigned long col[256];
161 /* TODO: use better name for vars... */
166 struct {int x, y;} b, e;
169 struct timeval tclick1;
170 struct timeval tclick2;
175 static void die(const char*, ...);
176 static void draw(void);
177 static void drawregion(int, int, int, int);
178 static void execsh(void);
179 static void sigchld(int);
180 static void run(void);
182 static void csidump(void);
183 static void csihandle(void);
184 static void csiparse(void);
185 static void csireset(void);
187 static void tclearregion(int, int, int, int);
188 static void tcursor(int);
189 static void tdeletechar(int);
190 static void tdeleteline(int);
191 static void tinsertblank(int);
192 static void tinsertblankline(int);
193 static void tmoveto(int, int);
194 static void tnew(int, int);
195 static void tnewline(int);
196 static void tputtab(void);
197 static void tputc(char*);
198 static void treset(void);
199 static int tresize(int, int);
200 static void tscrollup(int, int);
201 static void tscrolldown(int, int);
202 static void tsetattr(int*, int);
203 static void tsetchar(char*);
204 static void tsetscroll(int, int);
205 static void tswapscreen(void);
207 static void ttynew(void);
208 static void ttyread(void);
209 static void ttyresize(int, int);
210 static void ttywrite(const char *, size_t);
212 static void xdraws(char *, Glyph, int, int, int, int);
213 static void xhints(void);
214 static void xclear(int, int, int, int);
215 static void xdrawcursor(void);
216 static void xinit(void);
217 static void xloadcols(void);
218 static void xseturgency(int);
219 static void xsetsel(char*);
220 static void xresize(int, int);
222 static void expose(XEvent *);
223 static void visibility(XEvent *);
224 static void unmap(XEvent *);
225 static char* kmap(KeySym, unsigned int state);
226 static void kpress(XEvent *);
227 static void cmessage(XEvent *);
228 static void resize(XEvent *);
229 static void focus(XEvent *);
230 static void brelease(XEvent *);
231 static void bpress(XEvent *);
232 static void bmotion(XEvent *);
233 static void selnotify(XEvent *);
234 static void selrequest(XEvent *);
236 static void selinit(void);
237 static inline int selected(int, int);
238 static void selcopy(void);
239 static void selpaste();
240 static void selscroll(int, int);
242 static int utf8decode(char *, long *);
243 static int utf8encode(long *, char *);
244 static int utf8size(char *);
245 static int isfullutf8(char *, int);
247 static void (*handler[LASTEvent])(XEvent *) = {
249 [ClientMessage] = cmessage,
250 [ConfigureNotify] = resize,
251 [VisibilityNotify] = visibility,
252 [UnmapNotify] = unmap,
256 [MotionNotify] = bmotion,
257 [ButtonPress] = bpress,
258 [ButtonRelease] = brelease,
259 [SelectionNotify] = selnotify,
260 [SelectionRequest] = selrequest,
267 static CSIEscape escseq;
270 static Selection sel;
271 static char **opt_cmd = NULL;
272 static char *opt_title = NULL;
273 static char *opt_embed = NULL;
274 static char *opt_class = NULL;
277 utf8decode(char *s, long *u) {
283 if(~c&B7) { /* 0xxxxxxx */
286 } else if((c&(B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
287 *u = c&(B4|B3|B2|B1|B0);
289 } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
290 *u = c&(B3|B2|B1|B0);
292 } else if((c&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
297 for(i=n,++s; i>0; --i,++rtn,++s) {
299 if((c&(B7|B6)) != B7) /* 10xxxxxx */
302 *u |= c&(B5|B4|B3|B2|B1|B0);
304 if((n == 1 && *u < 0x80) ||
305 (n == 2 && *u < 0x800) ||
306 (n == 3 && *u < 0x10000) ||
307 (*u >= 0xD800 && *u <= 0xDFFF))
316 utf8encode(long *u, char *s) {
321 sp = (unsigned char*) s;
324 *sp = uc; /* 0xxxxxxx */
326 } else if(*u < 0x800) {
327 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
329 } else if(uc < 0x10000) {
330 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
332 } else if(uc <= 0x10FFFF) {
333 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
338 for(i=n,++sp; i>0; --i,++sp)
339 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
349 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
350 UTF-8 otherwise return 0 */
352 isfullutf8(char *s, int b) {
353 unsigned char *c1, *c2, *c3;
355 c1 = (unsigned char *) s;
356 c2 = (unsigned char *) ++s;
357 c3 = (unsigned char *) ++s;
360 else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
362 else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
364 ((b == 2) && (*c2&(B7|B6)) == B7)))
366 else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
368 ((b == 2) && (*c2&(B7|B6)) == B7) ||
369 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
377 unsigned char c = *s;
381 else if((c&(B7|B6|B5)) == (B7|B6))
383 else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
391 sel.tclick1.tv_sec = 0;
392 sel.tclick1.tv_usec = 0;
396 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
397 if(sel.xtarget == None)
398 sel.xtarget = XA_STRING;
402 selected(int x, int y) {
403 if(sel.ey == y && sel.by == y) {
404 int bx = MIN(sel.bx, sel.ex);
405 int ex = MAX(sel.bx, sel.ex);
406 return BETWEEN(x, bx, ex);
408 return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
409 || (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
413 getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
415 *b = e->xbutton.button;
417 *x = X2COL(e->xbutton.x);
418 *y = Y2ROW(e->xbutton.y);
419 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
420 sel.b.y = MIN(sel.by, sel.ey);
421 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
422 sel.e.y = MAX(sel.by, sel.ey);
426 mousereport(XEvent *e) {
427 int x = X2COL(e->xbutton.x);
428 int y = Y2ROW(e->xbutton.y);
429 int button = e->xbutton.button;
430 int state = e->xbutton.state;
431 char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
432 static int ob, ox, oy;
435 if(e->xbutton.type == MotionNotify) {
436 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
440 } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
446 if(e->xbutton.type == ButtonPress) {
452 buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
453 + (state & Mod4Mask ? 8 : 0)
454 + (state & ControlMask ? 16 : 0);
456 ttywrite(buf, sizeof(buf));
461 if(IS_SET(MODE_MOUSE))
463 else if(e->xbutton.button == Button1) {
465 sel.ex = sel.bx = X2COL(e->xbutton.x);
466 sel.ey = sel.by = Y2ROW(e->xbutton.y);
473 int x, y, sz, sl, ls = 0;
478 sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
479 ptr = str = malloc(sz);
480 for(y = 0; y < term.row; y++) {
481 for(x = 0; x < term.col; x++)
482 if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
483 sl = utf8size(term.line[y][x].c);
484 memcpy(ptr, term.line[y][x].c, sl);
487 if(ls && y < sel.e.y)
496 selnotify(XEvent *e) {
497 unsigned long nitems, ofs, rem;
504 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
505 False, AnyPropertyType, &type, &format,
506 &nitems, &rem, &data)) {
507 fprintf(stderr, "Clipboard allocation failed\n");
510 ttywrite((const char *) data, nitems * format / 8);
512 /* number of 32-bit chunks returned */
513 ofs += nitems * format / 32;
519 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
523 selrequest(XEvent *e) {
524 XSelectionRequestEvent *xsre;
528 xsre = (XSelectionRequestEvent *) e;
529 xev.type = SelectionNotify;
530 xev.requestor = xsre->requestor;
531 xev.selection = xsre->selection;
532 xev.target = xsre->target;
533 xev.time = xsre->time;
537 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
538 if(xsre->target == xa_targets) {
539 /* respond with the supported type */
540 Atom string = sel.xtarget;
541 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
542 XA_ATOM, 32, PropModeReplace,
543 (unsigned char *) &string, 1);
544 xev.property = xsre->property;
545 } else if(xsre->target == sel.xtarget) {
546 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
547 xsre->target, 8, PropModeReplace,
548 (unsigned char *) sel.clip, strlen(sel.clip));
549 xev.property = xsre->property;
552 /* all done, send a notification to the listener */
553 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
554 fprintf(stderr, "Error sending SelectionNotify event\n");
559 /* register the selection for both the clipboard and the primary */
565 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
567 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
568 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
574 brelease(XEvent *e) {
575 if(IS_SET(MODE_MOUSE)) {
579 if(e->xbutton.button == Button2)
581 else if(e->xbutton.button == Button1) {
583 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
584 if(sel.bx == sel.ex && sel.by == sel.ey) {
587 gettimeofday(&now, NULL);
589 if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
590 /* triple click on the line */
591 sel.b.x = sel.bx = 0;
592 sel.e.x = sel.ex = term.col;
593 sel.b.y = sel.e.y = sel.ey;
595 } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
596 /* double click to select word */
598 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
599 term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
601 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
602 term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
604 sel.b.y = sel.e.y = sel.ey;
610 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
611 gettimeofday(&sel.tclick1, NULL);
617 if(IS_SET(MODE_MOUSE)) {
622 int oldey = sel.ey, oldex = sel.ex;
623 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
625 if(oldey != sel.ey || oldex != sel.ex) {
626 int starty = MIN(oldey, sel.ey);
627 int endy = MAX(oldey, sel.ey);
628 drawregion(0, (starty > 0 ? starty : 0), term.col, (endy < term.row ? endy+1 : term.row));
634 die(const char *errstr, ...) {
637 va_start(ap, errstr);
638 vfprintf(stderr, errstr, ap);
646 char *envshell = getenv("SHELL");
648 DEFAULT(envshell, "sh");
649 putenv("TERM="TNAME);
650 args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
651 execvp(args[0], args);
658 if(waitpid(pid, &stat, 0) < 0)
659 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
661 exit(WEXITSTATUS(stat));
670 /* seems to work fine on linux, openbsd and freebsd */
671 struct winsize w = {term.row, term.col, 0, 0};
672 if(openpty(&m, &s, NULL, NULL, &w) < 0)
673 die("openpty failed: %s\n", SERRNO);
675 switch(pid = fork()) {
677 die("fork failed\n");
680 setsid(); /* create a new process group */
681 dup2(s, STDIN_FILENO);
682 dup2(s, STDOUT_FILENO);
683 dup2(s, STDERR_FILENO);
684 if(ioctl(s, TIOCSCTTY, NULL) < 0)
685 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
693 signal(SIGCHLD, sigchld);
700 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
702 fprintf(stderr, "\n");
707 static char buf[BUFSIZ];
708 static int buflen = 0;
711 int charsize; /* size of utf8 char in bytes */
715 /* append read bytes to unprocessed bytes */
716 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
717 die("Couldn't read from shell: %s\n", SERRNO);
719 /* process every complete utf8 char */
722 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
723 charsize = utf8decode(ptr, &utf8c);
724 utf8encode(&utf8c, s);
730 /* keep any uncomplete utf8 char for the next call */
731 memmove(buf, ptr, buflen);
735 ttywrite(const char *s, size_t n) {
736 if(write(cmdfd, s, n) == -1)
737 die("write error on tty: %s\n", SERRNO);
741 ttyresize(int x, int y) {
746 w.ws_xpixel = w.ws_ypixel = 0;
747 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
748 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
755 if(mode == CURSOR_SAVE)
757 else if(mode == CURSOR_LOAD)
758 term.c = c, tmoveto(c.x, c.y);
767 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
769 term.top = 0, term.bot = term.row - 1;
770 term.mode = MODE_WRAP;
771 tclearregion(0, 0, term.col-1, term.row-1);
775 tnew(int col, int row) {
776 /* set screen size */
777 term.row = row, term.col = col;
778 term.line = malloc(term.row * sizeof(Line));
779 term.alt = malloc(term.row * sizeof(Line));
780 for(row = 0; row < term.row; row++) {
781 term.line[row] = malloc(term.col * sizeof(Glyph));
782 term.alt [row] = malloc(term.col * sizeof(Glyph));
790 Line* tmp = term.line;
791 term.line = term.alt;
793 term.mode ^= MODE_ALTSCREEN;
797 tscrolldown(int orig, int n) {
801 LIMIT(n, 0, term.bot-orig+1);
803 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
805 for(i = term.bot; i >= orig+n; i--) {
807 term.line[i] = term.line[i-n];
808 term.line[i-n] = temp;
815 tscrollup(int orig, int n) {
818 LIMIT(n, 0, term.bot-orig+1);
820 tclearregion(0, orig, term.col-1, orig+n-1);
822 for(i = orig; i <= term.bot-n; i++) {
824 term.line[i] = term.line[i+n];
825 term.line[i+n] = temp;
832 selscroll(int orig, int n) {
836 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
837 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
841 if(sel.by < term.top) {
845 if(sel.ey > term.bot) {
849 sel.b.y = sel.by, sel.b.x = sel.bx;
850 sel.e.y = sel.ey, sel.e.x = sel.ex;
855 tnewline(int first_col) {
858 tscrollup(term.top, 1);
861 tmoveto(first_col ? 0 : term.c.x, y);
867 char *p = escseq.buf;
871 escseq.priv = 1, p++;
873 while(p < escseq.buf+escseq.len) {
875 escseq.arg[escseq.narg] *= 10;
876 escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */;
878 if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ)
889 tmoveto(int x, int y) {
890 LIMIT(x, 0, term.col-1);
891 LIMIT(y, 0, term.row-1);
892 term.c.state &= ~CURSOR_WRAPNEXT;
899 term.line[term.c.y][term.c.x] = term.c.attr;
900 memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
901 term.line[term.c.y][term.c.x].state |= GLYPH_SET;
905 tclearregion(int x1, int y1, int x2, int y2) {
909 temp = x1, x1 = x2, x2 = temp;
911 temp = y1, y1 = y2, y2 = temp;
913 LIMIT(x1, 0, term.col-1);
914 LIMIT(x2, 0, term.col-1);
915 LIMIT(y1, 0, term.row-1);
916 LIMIT(y2, 0, term.row-1);
918 for(y = y1; y <= y2; y++)
919 for(x = x1; x <= x2; x++)
920 term.line[y][x].state = 0;
925 int src = term.c.x + n;
927 int size = term.col - src;
929 if(src >= term.col) {
930 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
933 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
934 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
938 tinsertblank(int n) {
941 int size = term.col - dst;
943 if(dst >= term.col) {
944 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
947 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
948 tclearregion(src, term.c.y, dst - 1, term.c.y);
952 tinsertblankline(int n) {
953 if(term.c.y < term.top || term.c.y > term.bot)
956 tscrolldown(term.c.y, n);
961 if(term.c.y < term.top || term.c.y > term.bot)
964 tscrollup(term.c.y, n);
968 tsetattr(int *attr, int l) {
971 for(i = 0; i < l; i++) {
974 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
975 term.c.attr.fg = DefaultFG;
976 term.c.attr.bg = DefaultBG;
979 term.c.attr.mode |= ATTR_BOLD;
982 term.c.attr.mode |= ATTR_UNDERLINE;
985 term.c.attr.mode |= ATTR_REVERSE;
988 term.c.attr.mode &= ~ATTR_BOLD;
991 term.c.attr.mode &= ~ATTR_UNDERLINE;
994 term.c.attr.mode &= ~ATTR_REVERSE;
997 if(i + 2 < l && attr[i + 1] == 5) {
999 if(BETWEEN(attr[i], 0, 255))
1000 term.c.attr.fg = attr[i];
1002 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
1005 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1008 term.c.attr.fg = DefaultFG;
1011 if(i + 2 < l && attr[i + 1] == 5) {
1013 if(BETWEEN(attr[i], 0, 255))
1014 term.c.attr.bg = attr[i];
1016 fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
1019 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1022 term.c.attr.bg = DefaultBG;
1025 if(BETWEEN(attr[i], 30, 37))
1026 term.c.attr.fg = attr[i] - 30;
1027 else if(BETWEEN(attr[i], 40, 47))
1028 term.c.attr.bg = attr[i] - 40;
1029 else if(BETWEEN(attr[i], 90, 97))
1030 term.c.attr.fg = attr[i] - 90 + 8;
1031 else if(BETWEEN(attr[i], 100, 107))
1032 term.c.attr.fg = attr[i] - 100 + 8;
1034 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
1042 tsetscroll(int t, int b) {
1045 LIMIT(t, 0, term.row-1);
1046 LIMIT(b, 0, term.row-1);
1058 switch(escseq.mode) {
1061 fprintf(stderr, "erresc: unknown csi ");
1065 case '@': /* ICH -- Insert <n> blank char */
1066 DEFAULT(escseq.arg[0], 1);
1067 tinsertblank(escseq.arg[0]);
1069 case 'A': /* CUU -- Cursor <n> Up */
1071 DEFAULT(escseq.arg[0], 1);
1072 tmoveto(term.c.x, term.c.y-escseq.arg[0]);
1074 case 'B': /* CUD -- Cursor <n> Down */
1075 DEFAULT(escseq.arg[0], 1);
1076 tmoveto(term.c.x, term.c.y+escseq.arg[0]);
1078 case 'C': /* CUF -- Cursor <n> Forward */
1080 DEFAULT(escseq.arg[0], 1);
1081 tmoveto(term.c.x+escseq.arg[0], term.c.y);
1083 case 'D': /* CUB -- Cursor <n> Backward */
1084 DEFAULT(escseq.arg[0], 1);
1085 tmoveto(term.c.x-escseq.arg[0], term.c.y);
1087 case 'E': /* CNL -- Cursor <n> Down and first col */
1088 DEFAULT(escseq.arg[0], 1);
1089 tmoveto(0, term.c.y+escseq.arg[0]);
1091 case 'F': /* CPL -- Cursor <n> Up and first col */
1092 DEFAULT(escseq.arg[0], 1);
1093 tmoveto(0, term.c.y-escseq.arg[0]);
1095 case 'G': /* CHA -- Move to <col> */
1096 case '`': /* XXX: HPA -- same? */
1097 DEFAULT(escseq.arg[0], 1);
1098 tmoveto(escseq.arg[0]-1, term.c.y);
1100 case 'H': /* CUP -- Move to <row> <col> */
1101 case 'f': /* XXX: HVP -- same? */
1102 DEFAULT(escseq.arg[0], 1);
1103 DEFAULT(escseq.arg[1], 1);
1104 tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
1106 /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
1107 case 'J': /* ED -- Clear screen */
1109 switch(escseq.arg[0]) {
1111 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1112 if(term.c.y < term.row-1)
1113 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1117 tclearregion(0, 0, term.col-1, term.c.y-1);
1118 tclearregion(0, term.c.y, term.c.x, term.c.y);
1121 tclearregion(0, 0, term.col-1, term.row-1);
1127 case 'K': /* EL -- Clear line */
1128 switch(escseq.arg[0]) {
1130 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1133 tclearregion(0, term.c.y, term.c.x, term.c.y);
1136 tclearregion(0, term.c.y, term.col-1, term.c.y);
1140 case 'S': /* SU -- Scroll <n> line up */
1141 DEFAULT(escseq.arg[0], 1);
1142 tscrollup(term.top, escseq.arg[0]);
1144 case 'T': /* SD -- Scroll <n> line down */
1145 DEFAULT(escseq.arg[0], 1);
1146 tscrolldown(term.top, escseq.arg[0]);
1148 case 'L': /* IL -- Insert <n> blank lines */
1149 DEFAULT(escseq.arg[0], 1);
1150 tinsertblankline(escseq.arg[0]);
1152 case 'l': /* RM -- Reset Mode */
1154 switch(escseq.arg[0]) {
1156 term.mode &= ~MODE_APPKEYPAD;
1158 case 5: /* DECSCNM -- Remove reverse video */
1159 if(IS_SET(MODE_REVERSE)) {
1160 term.mode &= ~MODE_REVERSE;
1165 term.mode &= ~MODE_WRAP;
1167 case 12: /* att610 -- Stop blinking cursor (IGNORED) */
1170 term.mode &= ~MODE_CRLF;
1173 term.c.state |= CURSOR_HIDE;
1175 case 1000: /* disable X11 xterm mouse reporting */
1176 term.mode &= ~MODE_MOUSEBTN;
1179 term.mode &= ~MODE_MOUSEMOTION;
1181 case 1049: /* = 1047 and 1048 */
1184 if(IS_SET(MODE_ALTSCREEN)) {
1185 tclearregion(0, 0, term.col-1, term.row-1);
1188 if(escseq.arg[0] != 1049)
1191 tcursor(CURSOR_LOAD);
1197 switch(escseq.arg[0]) {
1199 term.mode &= ~MODE_INSERT;
1206 case 'M': /* DL -- Delete <n> lines */
1207 DEFAULT(escseq.arg[0], 1);
1208 tdeleteline(escseq.arg[0]);
1210 case 'X': /* ECH -- Erase <n> char */
1211 DEFAULT(escseq.arg[0], 1);
1212 tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y);
1214 case 'P': /* DCH -- Delete <n> char */
1215 DEFAULT(escseq.arg[0], 1);
1216 tdeletechar(escseq.arg[0]);
1218 /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
1219 case 'd': /* VPA -- Move to <row> */
1220 DEFAULT(escseq.arg[0], 1);
1221 tmoveto(term.c.x, escseq.arg[0]-1);
1223 case 'h': /* SM -- Set terminal mode */
1225 switch(escseq.arg[0]) {
1227 term.mode |= MODE_APPKEYPAD;
1229 case 5: /* DECSCNM -- Reverve video */
1230 if(!IS_SET(MODE_REVERSE)) {
1231 term.mode |= MODE_REVERSE;
1236 term.mode |= MODE_WRAP;
1239 term.mode |= MODE_CRLF;
1241 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1242 /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
1243 if(escseq.narg > 1 && escseq.arg[1] != 25)
1246 term.c.state &= ~CURSOR_HIDE;
1248 case 1000: /* 1000,1002: enable xterm mouse report */
1249 term.mode |= MODE_MOUSEBTN;
1252 term.mode |= MODE_MOUSEMOTION;
1254 case 1049: /* = 1047 and 1048 */
1257 if(IS_SET(MODE_ALTSCREEN))
1258 tclearregion(0, 0, term.col-1, term.row-1);
1261 if(escseq.arg[0] != 1049)
1264 tcursor(CURSOR_SAVE);
1266 default: goto unknown;
1269 switch(escseq.arg[0]) {
1271 term.mode |= MODE_INSERT;
1273 default: goto unknown;
1277 case 'm': /* SGR -- Terminal attribute (color) */
1278 tsetattr(escseq.arg, escseq.narg);
1280 case 'r': /* DECSTBM -- Set Scrolling Region */
1284 DEFAULT(escseq.arg[0], 1);
1285 DEFAULT(escseq.arg[1], term.row);
1286 tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
1290 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1291 tcursor(CURSOR_SAVE);
1293 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1294 tcursor(CURSOR_LOAD);
1302 printf("ESC [ %s", escseq.priv ? "? " : "");
1304 for(i = 0; i < escseq.narg; i++)
1305 printf("%d ", escseq.arg[i]);
1307 putchar(escseq.mode);
1313 memset(&escseq, 0, sizeof(escseq));
1318 int space = TAB - term.c.x % TAB;
1319 tmoveto(term.c.x + space, term.c.y);
1325 if(term.esc & ESC_START) {
1326 if(term.esc & ESC_CSI) {
1327 escseq.buf[escseq.len++] = ascii;
1328 if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
1330 csiparse(), csihandle();
1332 /* TODO: handle other OSC */
1333 } else if(term.esc & ESC_OSC) {
1336 term.esc = ESC_START | ESC_TITLE;
1338 } else if(term.esc & ESC_TITLE) {
1339 if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
1341 term.title[term.titlelen] = '\0';
1342 XStoreName(xw.dpy, xw.win, term.title);
1344 term.title[term.titlelen++] = ascii;
1346 } else if(term.esc & ESC_ALTCHARSET) {
1348 case '0': /* Line drawing crap */
1349 term.c.attr.mode |= ATTR_GFX;
1351 case 'B': /* Back to regular text */
1352 term.c.attr.mode &= ~ATTR_GFX;
1355 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
1361 term.esc |= ESC_CSI;
1364 term.esc |= ESC_OSC;
1367 term.esc |= ESC_ALTCHARSET;
1369 case 'D': /* IND -- Linefeed */
1370 if(term.c.y == term.bot)
1371 tscrollup(term.top, 1);
1373 tmoveto(term.c.x, term.c.y+1);
1376 case 'E': /* NEL -- Next line */
1377 tnewline(1); /* always go to first col */
1380 case 'M': /* RI -- Reverse index */
1381 if(term.c.y == term.top)
1382 tscrolldown(term.top, 1);
1384 tmoveto(term.c.x, term.c.y-1);
1387 case 'c': /* RIS -- Reset to inital state */
1391 case '=': /* DECPAM -- Application keypad */
1392 term.mode |= MODE_APPKEYPAD;
1395 case '>': /* DECPNM -- Normal keypad */
1396 term.mode &= ~MODE_APPKEYPAD;
1399 case '7': /* DECSC -- Save Cursor */
1400 tcursor(CURSOR_SAVE);
1403 case '8': /* DECRC -- Restore Cursor */
1404 tcursor(CURSOR_LOAD);
1408 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
1409 (unsigned char) ascii, isprint(ascii)?ascii:'.');
1414 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey)) sel.bx = -1;
1420 tmoveto(term.c.x-1, term.c.y);
1423 tmoveto(0, term.c.y);
1428 /* go to first col if the mode is set */
1429 tnewline(IS_SET(MODE_CRLF));
1432 if(!(xw.state & WIN_FOCUSED))
1437 term.esc = ESC_START;
1440 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
1441 tnewline(1); /* always go to first col */
1443 if(term.c.x+1 < term.col)
1444 tmoveto(term.c.x+1, term.c.y);
1446 term.c.state |= CURSOR_WRAPNEXT;
1452 tresize(int col, int row) {
1454 int minrow = MIN(row, term.row);
1455 int mincol = MIN(col, term.col);
1456 int slide = term.c.y - row + 1;
1458 if(col < 1 || row < 1)
1461 /* free unneeded rows */
1464 /* slide screen to keep cursor where we expect it -
1465 * tscrollup would work here, but we can optimize to
1466 * memmove because we're freeing the earlier lines */
1467 for(/* i = 0 */; i < slide; i++) {
1471 memmove(term.line, term.line + slide, row * sizeof(Line));
1472 memmove(term.alt, term.alt + slide, row * sizeof(Line));
1474 for(i += row; i < term.row; i++) {
1479 /* resize to new height */
1480 term.line = realloc(term.line, row * sizeof(Line));
1481 term.alt = realloc(term.alt, row * sizeof(Line));
1483 /* resize each row to new width, zero-pad if needed */
1484 for(i = 0; i < minrow; i++) {
1485 term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
1486 term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
1487 for(x = mincol; x < col; x++) {
1488 term.line[i][x].state = 0;
1489 term.alt[i][x].state = 0;
1493 /* allocate any new rows */
1494 for(/* i == minrow */; i < row; i++) {
1495 term.line[i] = calloc(col, sizeof(Glyph));
1496 term.alt [i] = calloc(col, sizeof(Glyph));
1499 /* update terminal size */
1500 term.col = col, term.row = row;
1501 /* make use of the LIMIT in tmoveto */
1502 tmoveto(term.c.x, term.c.y);
1503 /* reset scrolling region */
1504 tsetscroll(0, row-1);
1509 xresize(int col, int row) {
1515 xw.bufw = MAX(1, col * xw.cw);
1516 xw.bufh = MAX(1, row * xw.ch);
1517 newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1518 XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
1519 XFreePixmap(xw.dpy, xw.buf);
1520 XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
1522 XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0,
1523 xw.bufw-oldw, MIN(xw.bufh, oldh));
1524 else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
1525 XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER,
1526 xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
1529 XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh,
1530 xw.bufw, xw.bufh-oldh);
1531 else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
1532 XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh,
1533 xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
1542 unsigned long white = WhitePixel(xw.dpy, xw.scr);
1544 for(i = 0; i < 16; i++) {
1545 if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
1547 fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
1549 dc.col[i] = color.pixel;
1552 /* same colors as xterm */
1553 for(r = 0; r < 6; r++)
1554 for(g = 0; g < 6; g++)
1555 for(b = 0; b < 6; b++) {
1556 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
1557 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
1558 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
1559 if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
1561 fprintf(stderr, "Could not allocate color %d\n", i);
1563 dc.col[i] = color.pixel;
1567 for(r = 0; r < 24; r++, i++) {
1568 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
1569 if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
1571 fprintf(stderr, "Could not allocate color %d\n", i);
1573 dc.col[i] = color.pixel;
1578 xclear(int x1, int y1, int x2, int y2) {
1579 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
1580 XFillRectangle(xw.dpy, xw.buf, dc.gc,
1581 x1 * xw.cw, y1 * xw.ch,
1582 (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
1587 XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
1588 XWMHints wm = {.flags = InputHint, .input = 1};
1590 .flags = PSize | PResizeInc | PBaseSize,
1593 .height_inc = xw.ch,
1595 .base_height = 2*BORDER,
1596 .base_width = 2*BORDER,
1598 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
1602 xinitfont(char *fontstr) {
1604 char *def, **missing;
1608 set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
1611 fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
1612 XFreeStringList(missing);
1618 xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
1619 XFontStruct **xfonts;
1623 *ascent = *descent = *lbearing = *rbearing = 0;
1624 n = XFontsOfFontSet(set, &xfonts, &font_names);
1625 for(i = 0; i < n; i++) {
1626 *ascent = MAX(*ascent, (*xfonts)->ascent);
1627 *descent = MAX(*descent, (*xfonts)->descent);
1628 *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
1629 *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
1635 initfonts(char *fontstr, char *bfontstr) {
1636 if((dc.font.set = xinitfont(fontstr)) == NULL ||
1637 (dc.bfont.set = xinitfont(bfontstr)) == NULL)
1638 die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
1639 xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
1640 &dc.font.lbearing, &dc.font.rbearing);
1641 xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
1642 &dc.bfont.lbearing, &dc.bfont.rbearing);
1647 XSetWindowAttributes attrs;
1651 if(!(xw.dpy = XOpenDisplay(NULL)))
1652 die("Can't open display\n");
1653 xw.scr = XDefaultScreen(xw.dpy);
1656 initfonts(FONT, BOLDFONT);
1658 /* XXX: Assuming same size for bold font */
1659 xw.cw = dc.font.rbearing - dc.font.lbearing;
1660 xw.ch = dc.font.ascent + dc.font.descent;
1663 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
1666 /* window - default size */
1667 xw.bufh = term.row * xw.ch;
1668 xw.bufw = term.col * xw.cw;
1669 xw.h = xw.bufh + 2*BORDER;
1670 xw.w = xw.bufw + 2*BORDER;
1672 attrs.background_pixel = dc.col[DefaultBG];
1673 attrs.border_pixel = dc.col[DefaultBG];
1674 attrs.bit_gravity = NorthWestGravity;
1675 attrs.event_mask = FocusChangeMask | KeyPressMask
1676 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1677 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
1678 | EnterWindowMask | LeaveWindowMask;
1679 attrs.colormap = xw.cmap;
1681 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
1682 xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
1683 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
1684 XDefaultVisual(xw.dpy, xw.scr),
1685 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
1688 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1692 xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1693 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
1694 | XIMStatusNothing, XNClientWindow, xw.win,
1695 XNFocusWindow, xw.win, NULL);
1697 dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
1699 /* white cursor, black outline */
1700 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
1701 XDefineCursor(xw.dpy, xw.win, cursor);
1702 XRecolorCursor(xw.dpy, cursor,
1703 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
1704 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
1706 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
1708 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
1709 XMapWindow(xw.dpy, xw.win);
1715 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
1716 unsigned long xfg = dc.col[base.fg], xbg = dc.col[base.bg], temp;
1717 int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
1720 /* only switch default fg/bg if term is in RV mode */
1721 if(IS_SET(MODE_REVERSE)) {
1722 if(base.fg == DefaultFG)
1723 xfg = dc.col[DefaultBG];
1724 if(base.bg == DefaultBG)
1725 xbg = dc.col[DefaultFG];
1728 if(base.mode & ATTR_REVERSE)
1729 temp = xfg, xfg = xbg, xbg = temp;
1731 XSetBackground(xw.dpy, dc.gc, xbg);
1732 XSetForeground(xw.dpy, dc.gc, xfg);
1734 if(base.mode & ATTR_GFX) {
1735 for(i = 0; i < bytelen; i++) {
1736 char c = gfx[(unsigned int)s[i] % 256];
1739 else if(s[i] > 0x5f)
1744 XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
1745 dc.gc, winx, winy, s, bytelen);
1747 if(base.mode & ATTR_UNDERLINE)
1748 XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
1753 static int oldx = 0;
1754 static int oldy = 0;
1756 Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
1758 LIMIT(oldx, 0, term.col-1);
1759 LIMIT(oldy, 0, term.row-1);
1761 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
1762 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
1764 /* remove the old cursor */
1765 if(term.line[oldy][oldx].state & GLYPH_SET) {
1766 sl = utf8size(term.line[oldy][oldx].c);
1767 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
1769 xclear(oldx, oldy, oldx, oldy);
1771 /* draw the new one */
1772 if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
1774 if(IS_SET(MODE_REVERSE))
1775 g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
1776 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
1777 oldx = term.c.x, oldy = term.c.y;
1783 drawregion(0, 0, term.col, term.row);
1787 drawregion(int x1, int y1, int x2, int y2) {
1788 int ic, ib, x, y, ox, sl;
1790 char buf[DRAW_BUF_SIZ];
1792 if(!(xw.state & WIN_VISIBLE))
1795 xclear(x1, y1, x2-1, y2-1);
1796 for(y = y1; y < y2; y++) {
1797 base = term.line[y][0];
1799 for(x = x1; x < x2; x++) {
1800 new = term.line[y][x];
1801 if(sel.bx != -1 && *(new.c) && selected(x, y))
1802 new.mode ^= ATTR_REVERSE;
1803 if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
1804 ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
1805 xdraws(buf, base, ox, y, ic, ib);
1808 if(new.state & GLYPH_SET) {
1813 sl = utf8size(new.c);
1814 memcpy(buf+ib, new.c, sl);
1820 xdraws(buf, base, ox, y, ic, ib);
1823 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
1827 expose(XEvent *ev) {
1828 XExposeEvent *e = &ev->xexpose;
1829 if(xw.state & WIN_REDRAW) {
1831 xw.state &= ~WIN_REDRAW;
1835 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
1836 e->width, e->height, e->x, e->y);
1840 visibility(XEvent *ev) {
1841 XVisibilityEvent *e = &ev->xvisibility;
1842 if(e->state == VisibilityFullyObscured)
1843 xw.state &= ~WIN_VISIBLE;
1844 else if(!(xw.state & WIN_VISIBLE))
1845 /* need a full redraw for next Expose, not just a buf copy */
1846 xw.state |= WIN_VISIBLE | WIN_REDRAW;
1851 xw.state &= ~WIN_VISIBLE;
1855 xseturgency(int add) {
1856 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
1857 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
1858 XSetWMHints(xw.dpy, xw.win, h);
1864 if(ev->type == FocusIn) {
1865 xw.state |= WIN_FOCUSED;
1868 xw.state &= ~WIN_FOCUSED;
1873 kmap(KeySym k, unsigned int state) {
1876 for(i = 0; i < LEN(key); i++) {
1877 unsigned int mask = key[i].mask;
1878 if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
1879 return (char*)key[i].s;
1885 kpress(XEvent *ev) {
1886 XKeyEvent *e = &ev->xkey;
1895 meta = e->state & Mod1Mask;
1896 shift = e->state & ShiftMask;
1897 len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
1899 /* 1. custom keys from config.h */
1900 if((customkey = kmap(ksym, e->state)))
1901 ttywrite(customkey, strlen(customkey));
1902 /* 2. hardcoded (overrides X lookup) */
1909 /* XXX: shift up/down doesn't work */
1910 sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
1918 if(IS_SET(MODE_CRLF))
1919 ttywrite("\r\n", 2);
1926 if(meta && len == 1)
1927 ttywrite("\033", 1);
1935 cmessage(XEvent *e) {
1937 http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
1938 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
1939 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
1940 xw.state |= WIN_FOCUSED;
1942 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
1943 xw.state &= ~WIN_FOCUSED;
1953 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
1956 xw.w = e->xconfigure.width;
1957 xw.h = e->xconfigure.height;
1958 col = (xw.w - 2*BORDER) / xw.cw;
1959 row = (xw.h - 2*BORDER) / xw.ch;
1960 if(col == term.col && row == term.row)
1962 if(tresize(col, row))
1964 ttyresize(col, row);
1972 int xfd = XConnectionNumber(xw.dpy);
1976 FD_SET(cmdfd, &rfd);
1978 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) {
1981 die("select failed: %s\n", SERRNO);
1983 if(FD_ISSET(cmdfd, &rfd)) {
1987 while(XPending(xw.dpy)) {
1988 XNextEvent(xw.dpy, &ev);
1989 if(XFilterEvent(&ev, xw.win))
1991 if(handler[ev.type])
1992 (handler[ev.type])(&ev);
1998 main(int argc, char *argv[]) {
2001 for(i = 1; i < argc; i++) {
2002 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
2004 if(++i < argc) opt_title = argv[i];
2007 if(++i < argc) opt_class = argv[i];
2010 if(++i < argc) opt_embed = argv[i];
2013 /* eat every remaining arguments */
2014 if(++i < argc) opt_cmd = &argv[i];
2023 setlocale(LC_CTYPE, "");