mutt/patch-1.5.23.xtitles.patch

From: Cristoph Berg <myon@debian.org>
Date: Thu, 27 Feb 2014 12:25:51 +0100
Subject: xtitles

This is the xterm title patch as found on the mutt mailing lists.

* Changes made:
  - 2007-01-27 myon: using %P caused a segfault, updated status.c to catch
    menu==NULL.
  - 2007-02-20 myon: make the note about the xterm_set_titles defaults a
    comment.
  - 2008-08-02 myon: move set_xterm_* prototypes into the proper header file
    (cleaner code, no functional change, evades conflict with sidebar patch)

Signed-off-by: Matteo F. Vescovi <mfvescovi@gmail.com>

Gbp-Pq: Topic features
---
 curs_main.c | 20 ++++++++++++++++++++
 globals.h   |  2 ++
 init.c      | 20 ++++++++++++++++++++
 init.h      | 21 +++++++++++++++++++++
 mutt.h      |  1 +
 mutt_menu.h |  2 ++
 pager.c     |  7 +++++++
 status.c    |  2 ++
 8 files changed, 75 insertions(+)

diff --git a/curs_main.c b/curs_main.c
index aa4b044..16ddbc9 100644
--- a/curs_main.c
+++ b/curs_main.c
@@ -110,6 +110,19 @@ static const char *No_visible = N_("No visible messages.");
 
 extern size_t UngetCount;
 
+#define ASCII_CTRL_G                  0x07
+#define ASCII_CTRL_OPEN_SQUARE_BRAKET 0x1b
+
+void set_xterm_title_bar(char *title)
+{
+  fprintf(stderr ,"%c]2;%s%c", ASCII_CTRL_OPEN_SQUARE_BRAKET, title, ASCII_CTRL_G);
+}
+
+void set_xterm_icon_name(char *name)
+{
+  fprintf(stderr, "%c]1;%s%c", ASCII_CTRL_OPEN_SQUARE_BRAKET, name, ASCII_CTRL_G);
+}
+
 void index_make_entry (char *s, size_t l, MUTTMENU *menu, int num)
 {
   format_flag flag = M_FORMAT_MAKEPRINT | M_FORMAT_ARROWCURSOR | M_FORMAT_INDEX;
@@ -560,6 +573,13 @@ int mutt_index_menu (void)
 	mutt_paddstr (COLS, buf);
 	NORMAL_COLOR;
 	menu->redraw &= ~REDRAW_STATUS;
+	if (option(OPTXTERMSETTITLES))
+	{
+	  menu_status_line (buf, sizeof (buf), menu, NONULL (XtermTitle));
+	  set_xterm_title_bar(buf);
+	  menu_status_line (buf, sizeof (buf), menu, NONULL (XtermIcon));
+	  set_xterm_icon_name(buf);
+	}
       }
 
       menu->redraw = 0;
diff --git a/globals.h b/globals.h
index 6fefe5b..584cd0c 100644
--- a/globals.h
+++ b/globals.h
@@ -141,6 +141,8 @@ WHERE char *Tempdir;
 WHERE char *Tochars;
 WHERE char *Username;
 WHERE char *Visual;
+WHERE char *XtermTitle;
+WHERE char *XtermIcon;
 
 WHERE char *CurrentFolder;
 WHERE char *LastFolder;
diff --git a/init.c b/init.c
index cc3cf4b..81bb9e7 100644
--- a/init.c
+++ b/init.c
@@ -1877,6 +1877,26 @@ static int parse_set (BUFFER *tmp, BUFFER *s, unsigned long data, BUFFER *err)
 	toggle_option (MuttVars[idx].data);
       else
 	set_option (MuttVars[idx].data);
+
+      /* sanity check for xterm */
+      if ((mutt_strcmp (MuttVars[idx].option, "xterm_set_titles") == 0)
+		&& option (OPTXTERMSETTITLES))
+      {
+	char *ep = getenv ("TERM");
+	/* Make sure that the terminal can take the control codes */
+	if (ep == NULL) unset_option (MuttVars[idx].data);
+	else if (mutt_strncasecmp (ep, "xterm", 5) &&
+		 mutt_strncasecmp (ep, "color-xterm", 11) &&
+		 mutt_strncasecmp (ep, "eterm", 5) &&
+		 mutt_strncasecmp (ep, "kterm", 5) &&
+		 mutt_strncasecmp (ep, "nxterm", 6) &&
+		 mutt_strncasecmp (ep, "putty", 5) &&
+		 mutt_strncasecmp (ep, "screen", 6) &&
+		 mutt_strncasecmp (ep, "cygwin", 6) &&
+		 mutt_strncasecmp (ep, "rxvt", 4) )
+	  unset_option (MuttVars[idx].  data);
+
+      }
     }
     else if (myvar || DTYPE (MuttVars[idx].type) == DT_STR ||
 	     DTYPE (MuttVars[idx].type) == DT_PATH ||
diff --git a/init.h b/init.h
index 80d05ce..cf8e75a 100644
--- a/init.h
+++ b/init.h
@@ -3412,6 +3412,27 @@ struct option_t MuttVars[] = {
   ** Also see the $$read_inc, $$net_inc and $$time_inc variables and the
   ** ``$tuning'' section of the manual for performance considerations.
   */
+  {"xterm_icon",       DT_STR,   R_BOTH, UL &XtermIcon,  UL "M%?n?AIL&ail?"},
+  /*
+  ** .pp
+  ** Controls the format of the icon title, as long as xterm_set_titles
+  ** is enabled. This string is identical in formatting to the one used by
+  ** ``$$status_format''.
+  */
+  {"xterm_set_titles", DT_BOOL,  R_BOTH, OPTXTERMSETTITLES, 0},
+  /* The default must be off to force in the validity checking. */
+  /*
+  ** .pp
+  ** Controls whether mutt sets the xterm title bar and icon name
+  ** (as long as you are in an appropriate terminal).
+  */
+  {"xterm_title",      DT_STR,   R_BOTH, UL &XtermTitle, UL "Mutt with %?m?%m messages&no messages?%?n? [%n NEW]?"},
+  /*
+  ** .pp
+  ** Controls the format of the title bar of the xterm provided that
+  ** xterm_set_titles has been set. This string is identical in formatting
+  ** to the one used by ``$$status_format''.
+  */
   /*--*/
   { NULL, 0, 0, 0, 0 }
 };
diff --git a/mutt.h b/mutt.h
index dcd7dc5..1d7e177 100644
--- a/mutt.h
+++ b/mutt.h
@@ -449,6 +449,7 @@ enum
   OPTWRAPSEARCH,
   OPTWRITEBCC,		/* write out a bcc header? */
   OPTXMAILER,
+  OPTXTERMSETTITLES,
 
   OPTCRYPTUSEGPGME,
   OPTCRYPTUSEPKA,
diff --git a/mutt_menu.h b/mutt_menu.h
index d459bef..82abecd 100644
--- a/mutt_menu.h
+++ b/mutt_menu.h
@@ -103,6 +103,8 @@ void menu_current_middle (MUTTMENU *);
 void menu_current_bottom (MUTTMENU *);
 void menu_check_recenter (MUTTMENU *);
 void menu_status_line (char *, size_t, MUTTMENU *, const char *);
+void set_xterm_title_bar (char *title);
+void set_xterm_icon_name (char *name);
 
 MUTTMENU *mutt_new_menu (int);
 void mutt_menuDestroy (MUTTMENU **);
diff --git a/pager.c b/pager.c
index 486d8c8..23eb8ca 100644
--- a/pager.c
+++ b/pager.c
@@ -1812,6 +1812,13 @@ mutt_pager (const char *banner, const char *fname, int flags, pager_t *extra)
 	mutt_paddstr (COLS, bn);
       }
       NORMAL_COLOR;
+      if (option(OPTXTERMSETTITLES))
+      {
+	menu_status_line (buffer, sizeof (buffer), index, NONULL (XtermTitle));
+	set_xterm_title_bar(buffer);
+	menu_status_line (buffer, sizeof (buffer), index, NONULL (XtermIcon));
+	set_xterm_icon_name(buffer);
+      }
     }
 
     if ((redraw & REDRAW_INDEX) && index)
diff --git a/status.c b/status.c
index 1bb9a5a..6051e3a 100644
--- a/status.c
+++ b/status.c
@@ -195,6 +195,8 @@ status_format_str (char *buf, size_t buflen, size_t col, char op, const char *sr
       break;
 
     case 'P':
+      if (!menu)
+	break;
       if (menu->top + menu->pagelen >= menu->max)
 	cp = menu->top ? "end" : "all";
       else