Two new options, window-status-format and window-status-current-format, which

allow the format of each window in the status line window list to be controlled
using similar # sequences as status-left/right.

This diff also moves part of the way towards UTF-8 support in window names but
it isn't quite there yet.

cmd-display-message.c

@@ -55,7 +55,7 @@ cmd_display_message_exec(struct cmd *self, struct cmd_ctx *ctx)
 	else
 		template = data->arg;
 
-	msg = status_replace(c, template, time(NULL), 0);
+	msg = status_replace(c, NULL, template, time(NULL), 0);
 	status_message_set(c, "%s", msg);
 	xfree(msg);
 

cmd-set-window-option.c

@@ -71,7 +71,9 @@ const struct set_option_entry set_window_option_table[] = {
 	{ "window-status-current-attr", SET_OPTION_ATTRIBUTES, 0, 0, NULL },
 	{ "window-status-current-bg", SET_OPTION_COLOUR, 0, 0, NULL },
 	{ "window-status-current-fg", SET_OPTION_COLOUR, 0, 0, NULL },
+	{ "window-status-current-format", SET_OPTION_STRING, 0, 0, NULL },
 	{ "window-status-fg", SET_OPTION_COLOUR, 0, 0, NULL },
+	{ "window-status-format", SET_OPTION_STRING, 0, 0, NULL },
 	{ "xterm-keys", SET_OPTION_FLAG, 0, 0, NULL },
 	{ NULL, 0, 0, 0, NULL }
 };
@@ -84,7 +86,10 @@ cmd_set_window_option_exec(struct cmd *self, struct cmd_ctx *ctx)
 	struct client			*c;
 	struct options			*oo;
 	const struct set_option_entry   *entry, *opt;
+	struct jobs			*jobs;
+	struct job			*job, *nextjob;
 	u_int				 i;
+	int				 try_again;
 
 	if (cmd_check_flag(data->chflags, 'g'))
 		oo = &global_w_options;
@@ -166,5 +171,34 @@ cmd_set_window_option_exec(struct cmd *self, struct cmd_ctx *ctx)
 			server_redraw_client(c);
 	}
 
+	/* 
+	 * Special-case: kill all persistent jobs if window-status-format has
+	 * changed. Persistent jobs are only used by the status line at the
+	 * moment so this works XXX.
+	 */
+	if (strcmp(entry->name, "window-status-format") == 0) {
+		for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
+			c = ARRAY_ITEM(&clients, i);
+			if (c == NULL || c->session == NULL)
+				continue;
+
+			jobs = &c->status_jobs;
+			do {
+				try_again = 0;	
+				job = RB_ROOT(jobs);
+				while (job != NULL) {
+					nextjob = RB_NEXT(jobs, jobs, job);
+					if (job->flags & JOB_PERSIST) {
+						job_remove(jobs, job);
+						try_again = 1;
+						break;
+					}
+					job = nextjob;
+				}
+			} while (try_again);
+			server_redraw_client(c);
+		}
+	}
+
 	return (0);
 }

server-client.c

@@ -489,7 +489,7 @@ server_client_set_title(struct client *c)
 
 	template = options_get_string(&s->options, "set-titles-string");
 	
-	title = status_replace(c, template, time(NULL), 1);
+	title = status_replace(c, NULL, template, time(NULL), 1);
 	if (c->title == NULL || strcmp(title, c->title) != 0) {
 		if (c->title != NULL)
 			xfree(c->title);

status.c

@@ -31,10 +31,11 @@
 
 char   *status_job(struct client *, char **);
 void	status_job_callback(struct job *);
-size_t	status_width(struct winlink *);
-char   *status_print(struct session *, struct winlink *, struct grid_cell *);
-void	status_replace1(
-	    struct client *, char **, char **, char *, size_t, int);
+size_t	status_width(struct client *, struct winlink *, time_t);
+char   *status_print(
+    	    struct client *, struct winlink *, time_t, struct grid_cell *);
+void	status_replace1(struct client *,
+    	    struct winlink *, char **, char **, char *, size_t, int);
 void	status_message_callback(int, short, void *);
 
 void	status_prompt_add_history(struct client *);
@@ -108,14 +109,14 @@ status_redraw(struct client *c)
 	utf8flag = options_get_number(&s->options, "status-utf8");
 
 	/* Work out the left and right strings. */
-	left = status_replace(c, options_get_string(
+	left = status_replace(c, NULL, options_get_string(
 	    &s->options, "status-left"), c->status_timer.tv_sec, 1);
 	llen = options_get_number(&s->options, "status-left-length");
 	llen2 = screen_write_cstrlen(utf8flag, "%s", left);
 	if (llen2 < llen)
 		llen = llen2;
 
-	right = status_replace(c, options_get_string(
+	right = status_replace(c, NULL, options_get_string(
 	    &s->options, "status-right"), c->status_timer.tv_sec, 1);
 	rlen = options_get_number(&s->options, "status-right-length");
 	rlen2 = screen_write_cstrlen(utf8flag, "%s", right);
@@ -141,7 +142,7 @@ status_redraw(struct client *c)
 	 */
 	width = offset = 0;
 	RB_FOREACH(wl, winlinks, &s->windows) {
-		size = status_width(wl) + 1;
+		size = status_width(c, wl, c->status_timer.tv_sec) + 1;
 		if (wl == s->curw)
 			offset = width;
 		width += size;
@@ -153,7 +154,7 @@ status_redraw(struct client *c)
 		goto draw;
 
 	/* Find size of current window text. */
-	size = status_width(s->curw);
+	size = status_width(c, s->curw, c->status_timer.tv_sec);
 
 	/*
 	 * If the offset is already on screen, we're good to draw from the
@@ -226,7 +227,7 @@ draw:
 	offset = 0;
 	RB_FOREACH(wl, winlinks, &s->windows) {
 		memcpy(&gc, &stdgc, sizeof gc);
-		text = status_print(s, wl, &gc);
+		text = status_print(c, wl, c->status_timer.tv_sec, &gc);
 
 		if (larrow == 1 && offset < start) {
 			if (session_alert_has(s, wl, WINDOW_ACTIVITY))
@@ -237,10 +238,13 @@ draw:
 				larrow = -1;
 		}
 
- 		for (ptr = text; *ptr != '\0'; ptr++) {
-			if (offset >= start && offset < start + width)
-				screen_write_putc(&ctx, &gc, *ptr);
-			offset++;
+		ptr = text;
+		for (; offset < start; offset++)
+			ptr++;	/* XXX should skip UTF-8 characters */
+		if (offset < start + width) {
+			screen_write_cnputs(&ctx, 
+			    start + width - offset, &gc, utf8flag, "%s", text);
+			offset += screen_write_cstrlen(utf8flag, "%s", text);
 		}
 
 		if (rarrow == 1 && offset > start + width) {
@@ -322,15 +326,17 @@ out:
 
 /* Replace a single special sequence (prefixed by #). */
 void
-status_replace1(struct client *c,
+status_replace1(struct client *c,struct winlink *wl,
     char **iptr, char **optr, char *out, size_t outsize, int jobsflag)
 {
 	struct session *s = c->session;
-	struct winlink *wl = s->curw;
 	char		ch, tmp[256], *ptr, *endptr, *freeptr;
 	size_t		ptrlen;
 	long		limit;
 
+	if (wl == NULL)
+		wl = s->curw;
+
 	errno = 0;
 	limit = strtol(*iptr, &endptr, 10);
 	if ((limit == 0 && errno != EINVAL) ||
@@ -376,6 +382,21 @@ status_replace1(struct client *c,
 	case 'W':
 		ptr = wl->window->name;
 		goto do_replace;
+	case 'F':
+		tmp[0] = ' ';
+		if (session_alert_has(s, wl, WINDOW_CONTENT))
+			tmp[0] = '+';
+		else if (session_alert_has(s, wl, WINDOW_BELL))
+			tmp[0] = '!';
+		else if (session_alert_has(s, wl, WINDOW_ACTIVITY))
+			tmp[0] = '#';
+		else if (wl == s->curw)
+			tmp[0] = '*';
+		else if (wl == TAILQ_FIRST(&s->lastw))
+			tmp[0] = '-';
+		tmp[1] = '\0';
+		ptr = tmp;
+		goto do_replace;
 	case '[':
 		/* 
 		 * Embedded style, handled at display time. Leave present and
@@ -419,7 +440,8 @@ skip_to:
 
 /* Replace special sequences in fmt. */
 char *
-status_replace(struct client *c, const char *fmt, time_t t, int jobsflag)
+status_replace(struct client *c,
+    struct winlink *wl, const char *fmt, time_t t, int jobsflag)
 {
 	static char	out[BUFSIZ];
 	char		in[BUFSIZ], ch, *iptr, *optr;
@@ -439,7 +461,7 @@ status_replace(struct client *c, const char *fmt, time_t t, int jobsflag)
 			*optr++ = ch;
 			continue;
 		}
-		status_replace1(c, &iptr, &optr, out, sizeof out, jobsflag);
+		status_replace1(c, wl, &iptr, &optr, out, sizeof out, jobsflag);
 	}
 	*optr = '\0';
 
@@ -522,17 +544,37 @@ status_job_callback(struct job *job)
 
 /* Calculate winlink status line entry width. */
 size_t
-status_width(struct winlink *wl)
+status_width(struct client *c, struct winlink *wl, time_t t)
 {
-	return (xsnprintf(NULL, 0, "%d:%s ", wl->idx, wl->window->name));
+	struct options	*oo = &wl->window->options;
+	struct session	*s = c->session;
+	const char	*fmt;
+	char		*text;
+	size_t		 size;
+	int		 utf8flag;
+
+	utf8flag = options_get_number(&s->options, "status-utf8");
+
+	fmt = options_get_string(&wl->window->options, "window-status-format");
+	if (wl == s->curw)
+		fmt = options_get_string(oo, "window-status-current-format");
+
+	text = status_replace(c, wl, fmt, t, 1);
+	size = screen_write_cstrlen(utf8flag, "%s", text);
+	xfree(text);
+
+	return (size);
 }
 
 /* Return winlink status line entry and adjust gc as necessary. */
 char *
-status_print(struct session *s, struct winlink *wl, struct grid_cell *gc)
+status_print(
+    struct client *c, struct winlink *wl, time_t t, struct grid_cell *gc)
 {
 	struct options	*oo = &wl->window->options;
-	char   		*text, flag;
+	struct session	*s = c->session;
+	const char	*fmt;
+	char   		*text;
 	u_char		 fg, bg, attr;
 
 	fg = options_get_number(oo, "window-status-fg");
@@ -544,10 +586,7 @@ status_print(struct session *s, struct winlink *wl, struct grid_cell *gc)
 	attr = options_get_number(oo, "window-status-attr");
 	if (attr != 0)
 		gc->attr = attr;
-
-	flag = ' ';
- 	if (wl == TAILQ_FIRST(&s->lastw))
-		flag = '-';
+	fmt = options_get_string(oo, "window-status-format");
 	if (wl == s->curw) {
 		fg = options_get_number(oo, "window-status-current-fg");
 		if (fg != 8)
@@ -558,21 +597,15 @@ status_print(struct session *s, struct winlink *wl, struct grid_cell *gc)
 		attr = options_get_number(oo, "window-status-current-attr");
 		if (attr != 0)
 			gc->attr = attr;
-		flag = '*';
+		fmt = options_get_string(oo, "window-status-current-format");
 	}
 
-	if (session_alert_has(s, wl, WINDOW_ACTIVITY)) {
-		flag = '#';
+	if (session_alert_has(s, wl, WINDOW_ACTIVITY) ||
+	    session_alert_has(s, wl, WINDOW_BELL) ||
+	    session_alert_has(s, wl, WINDOW_CONTENT))
 		gc->attr ^= GRID_ATTR_REVERSE;
-	} else if (session_alert_has(s, wl, WINDOW_BELL)) {
-		flag = '!';
-		gc->attr ^= GRID_ATTR_REVERSE;
-	} else if (session_alert_has(s, wl, WINDOW_CONTENT)) {
-		flag = '+';
-		gc->attr ^= GRID_ATTR_REVERSE;
-	}
 
-	xasprintf(&text, "%d:%s%c", wl->idx, wl->window->name, flag);
+	text = status_replace(c, wl, fmt, t, 1);
 	return (text);
 }
 

tmux.1

@@ -1477,6 +1477,7 @@ may contain any of the following special character sequences:
 .It Li "#(command)" Ta "First line of command's output"
 .It Li "#[attributes]" Ta "Colour or attribute change"
 .It Li "#H" Ta "Hostname of local host"
+.It Li "#F" Ta "Current window flag"
 .It Li "#I" Ta "Current window index"
 .It Li "#P" Ta "Current pane index"
 .It Li "#S" Ta "Session name"
@@ -1785,6 +1786,14 @@ Set status line background colour for a single window.
 .It Ic window-status-fg Ar colour
 Set status line foreground colour for a single window.
 .Pp
+.It Ic window-status-format Ar string
+Set the format in which the window is displayed in the status line window list.
+See the
+.Ar status-left
+option for details of special character sequences available.
+The default is
+.Ql #I:#W#F .
+.Pp
 .It Ic window-status-current-attr Ar attributes
 Set status line attributes for the currently active window.
 .Pp
@@ -1794,6 +1803,11 @@ Set status line background colour for the currently active window.
 .It Ic window-status-current-fg Ar colour
 Set status line foreground colour for the currently active window.
 .Pp
+.It Ic window-status-current-format Ar string
+Like
+.Ar window-status-format ,
+but is the format used when the window is the current window.
+.Pp
 .It Xo Ic xterm-keys
 .Op Ic on | off
 .Xc
@@ -1900,8 +1914,13 @@ command, see the
 and
 .Ic status-right-length
 options below), and a central window list.
-The window list shows the index, name and (if any) flag of the windows
-present in the current session in ascending numerical order.
+By default, the window list shows the index, name and (if any) flag of the
+windows present in the current session in ascending numerical order.
+It may be customised with the
+.Ar window-status-format
+and
+.Ar window-status-current-format
+options.
 The flag is one of the following symbols appended to the window name:
 .Bl -column "Symbol" "Meaning" -offset indent
 .It Sy "Symbol" Ta Sy "Meaning"

tmux.c

@@ -391,6 +391,8 @@ main(int argc, char **argv)
 	options_set_number(wo, "window-status-current-bg", 8);
 	options_set_number(wo, "window-status-current-fg", 8);
 	options_set_number(wo, "window-status-fg", 8);
+	options_set_string(wo, "window-status-format", "#I:#W#F");
+	options_set_string(wo, "window-status-current-format", "#I:#W#F");
 	options_set_number(wo, "xterm-keys", 0);
  	options_set_number(wo, "remain-on-exit", 0);
 	options_set_number(wo, "synchronize-panes", 0);

tmux.h

@@ -1617,7 +1617,8 @@ void	 server_update_event(struct client *);
 
 /* status.c */
 int	 status_redraw(struct client *);
-char	*status_replace(struct client *, const char *, time_t, int);
+char	*status_replace(
+    	     struct client *, struct winlink *, const char *, time_t, int);
 void printflike2 status_message_set(struct client *, const char *, ...);
 void	 status_message_clear(struct client *);
 int	 status_message_redraw(struct client *);