Ability to show window title on status line.

CHANGES

@@ -1,3 +1,16 @@
+02 December 2008
+
+* Add support for including the window title in status-left or status-right
+  strings by including the character pair "#T". This may be prefixed with
+  a number to specify a maximum length, for example "#24T" to use at most
+  24 characters of the title.
+* Introduce two new options, status-left-length and status-right-length,
+  control the maximum length of left and right components of the status bar.
+* elinks (and possibly others) bypass the terminal and talk directly to X to
+  restore the window title when exiting. tmux can't know about this particular
+  bit of stupidity so the title ends up strange - the prefix isn't terribly
+  important and elinks is quite useful so just get rid of it.
+
 27 November 2008
 
 * Tweaks to support Dragonfly.
@@ -715,4 +728,4 @@
   (including mutt, emacs). No status bar yet and no key remapping or other
   customisation.
 
-$Id: CHANGES,v 1.168 2008-11-27 18:55:47 nicm Exp $
+$Id: CHANGES,v 1.169 2008-12-05 20:04:06 nicm Exp $

Makefile

@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.77 2008-11-27 18:55:47 nicm Exp $
+# $Id: Makefile,v 1.78 2008-12-05 20:04:06 nicm Exp $
 
 .SUFFIXES: .c .o .y .h
 .PHONY: clean update-index.html upload-index.html
@@ -11,7 +11,7 @@ REL!= uname -r
 DATE!= date +%Y%m%d-%H%M
 
 # This must be empty as OpenBSD includes it in default CFLAGS.
-#DEBUG=
+DEBUG=
 
 META?= \002 # C-b
 

TODO

@@ -51,4 +51,4 @@
 - many more info() displays for various things
 - vi half page scroll
 - why do home/end work in emacs outside tmux but not inside?
-- option to show window titles on status line (shorten window list and put it after)
+- document status line options, title bits

cmd-set-option.c

@@ -1,4 +1,4 @@
-/* $Id: cmd-set-option.c,v 1.44 2008-11-16 13:28:59 nicm Exp $ */
+/* $Id: cmd-set-option.c,v 1.45 2008-12-05 20:04:06 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -77,6 +77,8 @@ const struct set_option_entry set_option_table[NSETOPTION] = {
 	{ "status-interval", SET_OPTION_NUMBER, 0, INT_MAX, NULL },
 	{ "status-left", SET_OPTION_STRING, 0, 0, NULL },
 	{ "status-right", SET_OPTION_STRING, 0, 0, NULL },
+	{ "status-left-length", SET_OPTION_NUMBER, 0, SHRT_MAX, NULL },
+	{ "status-right-length", SET_OPTION_NUMBER, 0, SHRT_MAX, NULL },
 	{ "utf8", SET_OPTION_FLAG, 0, 0, NULL },
 };
 

input.c

@@ -1,4 +1,4 @@
-/* $Id: input.c,v 1.67 2008-11-16 13:28:59 nicm Exp $ */
+/* $Id: input.c,v 1.68 2008-12-05 20:04:06 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -463,6 +463,7 @@ input_state_string_escape(u_char ch, struct input_ctx *ictx)
 				return;
 			}
 			screen_set_title(ictx->ctx.s, s + 2);	
+			server_status_window(ictx->w);
 			xfree(s);
 			break;
 		case STRING_APPLICATION:
@@ -470,6 +471,7 @@ input_state_string_escape(u_char ch, struct input_ctx *ictx)
 				return;
 			s = input_get_string(ictx);
 			screen_set_title(ictx->ctx.s, s);
+			server_status_window(ictx->w);
 			xfree(s);
 			break;
 		case STRING_NAME:

server.c

@@ -1,4 +1,4 @@
-/* $Id: server.c,v 1.84 2008-11-04 20:55:58 nicm Exp $ */
+/* $Id: server.c,v 1.85 2008-12-05 20:04:06 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -305,7 +305,7 @@ server_check_redraw(struct client *c)
 	struct screen			screen;
 	struct grid_cell		gc;
 	u_int				xx, yy, sx, sy;
-	char			        title[BUFSIZ];
+	char			       *title;
 	int				flags;
 
 	if (c == NULL || c->session == NULL)
@@ -316,9 +316,7 @@ server_check_redraw(struct client *c)
 	c->tty.flags &= ~TTY_FREEZE;
 
 	if (options_get_number(&s->options, "set-titles")) {
-		xsnprintf(title, sizeof title,
+		title = s->curw->window->base.title;
-		    "%s:%u:%s - \"%s\"", s->name, s->curw->idx,
-		    s->curw->window->name, s->curw->window->base.title);
 		if (c->title == NULL || strcmp(title, c->title) != 0) {
 			if (c->title != NULL)
 				xfree(c->title);

status.c

@@ -1,4 +1,4 @@
-/* $Id: status.c,v 1.50 2008-11-16 10:10:26 nicm Exp $ */
+/* $Id: status.c,v 1.51 2008-12-05 20:04:06 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -19,12 +19,16 @@
 #include <sys/types.h>
 #include <sys/time.h>
 
+#include <errno.h>
+#include <limits.h>
 #include <stdarg.h>
+#include <stdlib.h>
 #include <string.h>
 #include <time.h>
 
 #include "tmux.h"
 
+char   *status_replace(struct session *, char *, time_t);
 size_t	status_width(struct winlink *);
 char   *status_print(struct session *, struct winlink *, struct grid_cell *);
 
@@ -35,15 +39,14 @@ status_redraw(struct client *c)
 	struct screen_redraw_ctx	ctx;
 	struct session		       *s = c->session;
 	struct winlink		       *wl;
-	char		 		*left, *right, *text, *ptr;
+	char		 	       *left, *right, *text, *ptr;
-	char				lbuf[BUFSIZ], rbuf[BUFSIZ];
 	size_t				llen, rlen, offset, xx, yy;
 	size_t				size, start, width;
 	struct grid_cell	        gc;
-	struct tm		       *tm;
-	time_t				t;
 	int				larrow, rarrow;
 
+	left = right = NULL;
+
 	if (c->sy == 0 || !options_get_number(&s->options, "status"))
 		goto off;
 	larrow = rarrow = 0;
@@ -58,14 +61,19 @@ status_redraw(struct client *c)
 	if (yy == 0)
 		goto blank;
 
-	t = c->status_timer.tv_sec;
+	left = status_replace(s, options_get_string(
-	tm = localtime(&t);
+	    &s->options, "status-left"), c->status_timer.tv_sec);
-	left = options_get_string(&s->options, "status-left");
+	llen = options_get_number(&s->options, "status-left-length");
-	strftime(lbuf, sizeof lbuf, left, tm);
+	if (strlen(left) < llen)
-	llen = strlen(lbuf);
+		llen = strlen(left);
-	right = options_get_string(&s->options, "status-right");
+	left[llen] = '\0';
-	strftime(rbuf, sizeof rbuf, right, tm);
+
-	rlen = strlen(rbuf);
+	right = status_replace(s, options_get_string(
+	    &s->options, "status-right"), c->status_timer.tv_sec);
+	rlen = options_get_number(&s->options, "status-right-length");
+	if (strlen(right) < rlen)
+		rlen = strlen(right);
+	right[rlen] = '\0';
 
 	/*
 	 * Figure out how much space we have for the window list. If there isn't
@@ -141,7 +149,7 @@ draw:
 	screen_redraw_start_client(&ctx, c);
 	if (llen != 0) {
  		ctx.write(ctx.data, TTY_CURSORMOVE, 0, yy);
-		screen_redraw_puts(&ctx, &gc, "%s ", lbuf);
+		screen_redraw_puts(&ctx, &gc, "%s ", left);
 		if (larrow)
 			screen_redraw_putc(&ctx, &gc, ' ');
 	} else {
@@ -194,7 +202,7 @@ draw:
 	/* Draw the last item. */
 	if (rlen != 0) {
 		ctx.write(ctx.data, TTY_CURSORMOVE, c->sx - rlen - 1, yy);
-		screen_redraw_puts(&ctx, &gc, " %s", rbuf);
+		screen_redraw_puts(&ctx, &gc, " %s", right);
 	}
 
 	/* Draw the arrows. */
@@ -223,8 +231,7 @@ draw:
 		gc.attr &= ~GRID_ATTR_REVERSE;
 	}
 
-	screen_redraw_stop(&ctx);
+	goto out;
-	return;
 
 blank:
  	/* Just draw the whole line as blank. */
@@ -232,9 +239,8 @@ blank:
 	ctx.write(ctx.data, TTY_CURSORMOVE, 0, yy);
 	for (offset = 0; offset < c->sx; offset++)
 		screen_redraw_putc(&ctx, &gc, ' ');
-	screen_redraw_stop(&ctx);
 
-	return;
+	goto out;
 
 off:
 	/*
@@ -249,9 +255,71 @@ off:
 			screen_redraw_putc(&ctx, &gc, ' ');
 	} else
 		screen_redraw_lines(&ctx, c->sy - 1, 1);
+
+out:
 	screen_redraw_stop(&ctx);
 
-	return;
+	if (left != NULL)
+		xfree(left);
+	if (right != NULL)
+		xfree(right);
+}
+
+char *
+status_replace(struct session *s, char *fmt, time_t t)
+{
+	static char	out[BUFSIZ];
+	char		in[BUFSIZ], ch, *iptr, *optr, *ptr, *endptr;
+	size_t		len;
+	long		n;
+	
+	strftime(in, sizeof in, fmt, localtime(&t));
+	in[(sizeof in) - 1] = '\0';
+
+	iptr = in;
+	optr = out;
+
+	while (*iptr != '\0') {
+		if (optr >= out + (sizeof out) - 1)
+			break;
+		switch (ch = *iptr++) {
+		case '#':
+			errno = 0;
+			n = strtol(iptr, &endptr, 10);
+			if ((n == 0 && errno != EINVAL) ||
+			    (n == LONG_MIN && errno != ERANGE) ||
+			    (n == LONG_MAX && errno != ERANGE) ||
+			    n != 0)
+				iptr = endptr;
+			if (n <= 0)
+				n = LONG_MAX;
+
+			switch (*iptr++) {
+			case 'T':
+				ptr = s->curw->window->base.title;
+				len = strlen(ptr);
+				if ((size_t) n < len)
+					len = n;
+				if (optr + len >= out + (sizeof out) - 1)
+					break;
+				while (len > 0 && *ptr != '\0') {
+					*optr++ = *ptr++;
+					len--;
+				}
+				break;
+			case '#':
+				*optr++ = '#';
+				break;
+			}
+			break;
+		default:
+			*optr++ = ch;
+			break;
+		}
+	}
+	*optr = '\0';
+
+	return (xstrdup(out));
 }
 
 size_t

tmux.c

@@ -1,4 +1,4 @@
-/* $Id: tmux.c,v 1.81 2008-11-27 18:55:47 nicm Exp $ */
+/* $Id: tmux.c,v 1.82 2008-12-05 20:04:06 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -226,7 +226,9 @@ main(int argc, char **argv)
 	options_set_number(&global_options, "prefix", META);
 	options_set_string(&global_options, "status-left", "%s", ""); /* ugh */
 	options_set_string(
-	    &global_options, "status-right", "%%H:%%M %%d-%%b-%%y");
+	    &global_options, "status-right", "\"#24T\" %%H:%%M %%d-%%b-%%y");
+	options_set_number(&global_options, "status-left-length", 10);
+	options_set_number(&global_options, "status-right-length", 40);
 	options_set_number(&global_options, "status-interval", 15);
 	options_set_number(&global_options, "set-titles", 1);
 	options_set_number(&global_options, "buffer-limit", 9);

tmux.h

@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.199 2008-11-23 19:38:12 nicm Exp $ */
+/* $Id: tmux.h,v 1.200 2008-12-05 20:04:06 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -844,7 +844,7 @@ struct set_option_entry {
 	const char     **choices;
 };
 extern const struct set_option_entry set_option_table[];
-#define NSETOPTION 16
+#define NSETOPTION 18
 
 /* Edit keys. */
 enum mode_key {