Restore window title handling.

CHANGES

@@ -1,5 +1,6 @@
 01 October 2007
 
+* (nicm) Restore window title handling.
 * (nicm) Simple uncustomisable status line with window list.
 
 30 September 2007
@@ -84,5 +85,5 @@
   (including mutt, emacs). No status bar yet and no key remapping or other
   customisation.
 
-$Id: CHANGES,v 1.19 2007-10-01 14:53:29 nicm Exp $
+$Id: CHANGES,v 1.20 2007-10-01 17:37:41 nicm Exp $
 

NOTES

@@ -54,7 +54,7 @@ with "-s <path>" but it shouldn't normally be required.
 You can set the window title (listed in -l), using the \e] escape sequence. For
 example:
 
-	$ echo -n \\033]0;My Title\\007
+	$ echo -n \\033]0\;My Title\\007
 
 There is currently no method for setting the window name (what will eventually
 be shown in the status bar).

TODO

@@ -37,5 +37,6 @@
 - store_attr/colr could be two-pass and avoid reverse_add/remove games
 - window creation/idle time
 - attributes could be 8 not 16 bits
-- put title setting back
 - profile/optimise, particularly (i suspect) input.c
+- tidy up input.c a bit
+- decide about customised status line

input.c

@@ -1,4 +1,4 @@
-/* $Id: input.c,v 1.15 2007-10-01 14:18:42 nicm Exp $ */
+/* $Id: input.c,v 1.16 2007-10-01 17:37:41 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -51,6 +51,9 @@ int	 input_add_argument(struct input_ctx *, u_char ch);
 void	*input_state_first(u_char, enum input_class, struct input_ctx *);
 void	*input_state_escape(u_char, enum input_class, struct input_ctx *);
 void	*input_state_intermediate(u_char, enum input_class, struct input_ctx *);
+void	*input_state_title_first(u_char, enum input_class, struct input_ctx *);
+void	*input_state_title_second(u_char, enum input_class, struct input_ctx *);
+void	*input_state_title_next(u_char, enum input_class, struct input_ctx *);
 void	*input_state_sequence_first(
 	     u_char, enum input_class, struct input_ctx *);
 void	*input_state_sequence_next(
@@ -213,6 +216,8 @@ input_state_first(u_char ch, enum input_class iclass, struct input_ctx *ictx)
 		ch -= 0x40;
 		if (ch == '[')
 			return (input_state_sequence_first);
+		if (ch == ']')
+			return (input_state_title_first);
 		input_handle_c1_control(ch, ictx);
 		break;
 	case INPUT_SPACE:
@@ -251,6 +256,8 @@ input_state_escape(u_char ch, enum input_class iclass, struct input_ctx *ictx)
 	case INPUT_UPPERCASE:
 		if (ch == '[')
 			return (input_state_sequence_first);
+		if (ch == ']')
+			return (input_state_title_first);
 		input_handle_c1_control(ch, ictx);
 		break;
 	case INPUT_LOWERCASE:
@@ -265,6 +272,51 @@ input_state_escape(u_char ch, enum input_class iclass, struct input_ctx *ictx)
 	return (input_state_first);
 }
 
+void *
+input_state_title_first(
+    u_char ch, unused enum input_class iclass, struct input_ctx *ictx)
+{
+	if (ch >= '0' && ch <= '9') {
+		ictx->title_type = ch - '0';
+		return (input_state_title_second);
+	}
+	return (input_state_first);
+}
+
+void *
+input_state_title_second(
+    u_char ch, unused enum input_class iclass, struct input_ctx *ictx)
+{
+	if (ch == ';') {
+		ictx->title_len = 0;
+		return (input_state_title_next);
+	}
+	return (input_state_first);
+}
+
+void *
+input_state_title_next(
+    u_char ch, unused enum input_class iclass, struct input_ctx *ictx)
+{
+	if (ch == '\007') {
+		ictx->title_buf[ictx->title_len] = '\0';
+		switch (ictx->title_type) {
+		case 0:
+			strlcpy(ictx->s->title, 
+			    ictx->title_buf, sizeof ictx->s->title);
+			input_store_one(ictx->b, CODE_TITLE, ictx->title_len);
+			buffer_write(ictx->b, ictx->title_buf, ictx->title_len);
+			break;
+		}
+	} else if (ch >= 0x20) {
+		if (ictx->title_len < (sizeof ictx->title_buf) - 1) {
+			ictx->title_buf[ictx->title_len++] = ch;
+			return (input_state_title_next);
+		}
+	}
+ 	return (input_state_first);
+}
+
 void *
 input_state_intermediate(
     u_char ch, enum input_class iclass, struct input_ctx *ictx)
@@ -423,7 +475,6 @@ input_handle_c1_control(u_char ch, struct input_ctx *ictx)
 {
 	log_debug2("-- c1 %zu: %hhu (%c)", ictx->off, ch, ch);
 
-	/* XXX window title */
 	switch (ch) {
 	case 'M':	/* RI */
 		screen_cursor_up_scroll(ictx->s);

tmux.h

@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.31 2007-10-01 14:53:29 nicm Exp $ */
+/* $Id: tmux.h,v 1.32 2007-10-01 17:37:41 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -430,6 +430,10 @@ struct input_ctx {
 	struct buffer	*b;
 	struct screen	*s;
 
+	u_char		 title_buf[MAXTITLELEN];
+	size_t		 title_len;
+	u_int		 title_type;
+
 	void 		*(*state)(u_char, enum input_class, struct input_ctx *);
 
 	u_char		 private;