From bbc33bff5e4ef2acee69dd45a5581231f466b3ac Mon Sep 17 00:00:00 2001
From: Timo Sirainen <cras@irssi.org>
Date: Sun, 17 Dec 2000 07:39:22 +0000
Subject: [PATCH] /SET prompt, /SET prompt_window - Specifies the text in
 prompt. 'prompt' is used when channel or query is active in window and
 'prompt_window' is used with empty windows.

git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1005 dbcabf3a-b0e7-0310-adc4-f8d773084564
---
 src/core/chat-commands.c         |  2 +-
 src/core/expandos.c              | 90 +++++++++++++++++++++++++++---
 src/core/expandos.h              |  4 ++
 src/core/signals.c               | 27 +++++----
 src/core/signals.h               |  1 +
 src/core/special-vars.c          | 96 +++++++++++++++++++++++++++-----
 src/core/special-vars.h          | 13 ++++-
 src/fe-common/core/fe-expandos.c | 12 +++-
 src/fe-common/core/fe-log.c      |  3 +-
 src/fe-common/core/fe-messages.c |  2 +-
 src/fe-common/core/formats.c     |  6 +-
 src/fe-common/core/themes.c      |  6 +-
 src/fe-text/gui-readline.c       |  4 +-
 src/fe-text/gui-windows.c        | 96 ++++++++++++++++++++++++--------
 src/fe-text/gui-windows.h        |  2 +-
 src/irc/core/ctcp.c              |  2 +-
 src/irc/core/irc-commands.c      |  2 +-
 17 files changed, 294 insertions(+), 74 deletions(-)

diff --git a/src/core/chat-commands.c b/src/core/chat-commands.c
index f2cae1ab..969be382 100644
--- a/src/core/chat-commands.c
+++ b/src/core/chat-commands.c
@@ -81,7 +81,7 @@ static void cmd_msg(const char *data, SERVER_REC *server, WI_ITEM_REC *item)
 	free_ret = FALSE;
 	if (strcmp(target, ",") == 0 || strcmp(target, ".") == 0) {
 		target = parse_special(&target, server, item,
-				       NULL, &free_ret, NULL);
+				       NULL, &free_ret, NULL, 0);
 	} else if (strcmp(target, "*") == 0 && item != NULL)
 		target = item->name;
 
diff --git a/src/core/expandos.c b/src/core/expandos.c
index 1dbd95ac..37f770a3 100644
--- a/src/core/expandos.c
+++ b/src/core/expandos.c
@@ -44,6 +44,8 @@ typedef struct {
         int signal_args[MAX_EXPANDO_SIGNALS];
 } EXPANDO_REC;
 
+static int timer_tag;
+
 static EXPANDO_REC *char_expandos[127];
 static GHashTable *expandos;
 static time_t client_start_time;
@@ -86,6 +88,14 @@ void expando_create(const char *key, EXPANDO_FUNC func, ...)
         va_end(va);
 }
 
+static EXPANDO_REC *expando_find(const char *key)
+{
+	if (key[1] != '\0')
+		return g_hash_table_lookup(expandos, key);
+        else
+		return char_expandos[(int) *key];
+}
+
 /* Add new signal to expando */
 void expando_add_signal(const char *key, const char *signal, ExpandoArg arg)
 {
@@ -94,15 +104,15 @@ void expando_add_signal(const char *key, const char *signal, ExpandoArg arg)
 	g_return_if_fail(key != NULL);
 	g_return_if_fail(signal != NULL);
 
-	if (key[1] != '\0')
-		rec = g_hash_table_lookup(expandos, key);
-	else {
-		/* single character expando */
-		rec = char_expandos[(int) *key];
-	}
+        rec = expando_find(key);
         g_return_if_fail(rec != NULL);
 
-	if (rec->signals < MAX_EXPANDO_SIGNALS) {
+	if (arg == EXPANDO_NEVER) {
+                /* expando changes never */
+		rec->signals = -1;
+	} else if (rec->signals < MAX_EXPANDO_SIGNALS) {
+		g_return_if_fail(rec->signals != -1);
+
 		rec->signal_ids[rec->signals] = signal_get_uniq_id(signal);
 		rec->signal_args[rec->signals] = arg;
                 rec->signals++;
@@ -135,6 +145,64 @@ void expando_destroy(const char *key, EXPANDO_FUNC func)
 	}
 }
 
+void expando_bind(const char *key, int funccount, SIGNAL_FUNC *funcs)
+{
+	SIGNAL_FUNC func;
+	EXPANDO_REC *rec;
+        int n, arg;
+
+	g_return_if_fail(key != NULL);
+	g_return_if_fail(funccount >= 1);
+	g_return_if_fail(funcs != NULL);
+	g_return_if_fail(funcs[0] != NULL);
+
+        rec = expando_find(key);
+	g_return_if_fail(rec != NULL);
+
+	if (rec->signals == 0) {
+		/* it's unknown when this expando changes..
+		   check it once in a second */
+                signal_add("expando timer", funcs[EXPANDO_ARG_NONE]);
+	}
+
+	for (n = 0; n < rec->signals; n++) {
+		arg = rec->signal_args[n];
+		func = arg < funccount ? funcs[arg] : NULL;
+		if (func == NULL) func = funcs[EXPANDO_ARG_NONE];
+
+		signal_add_to_id(MODULE_NAME, 1, rec->signal_ids[n], func);
+	}
+}
+
+void expando_unbind(const char *key, int funccount, SIGNAL_FUNC *funcs)
+{
+	SIGNAL_FUNC func;
+	EXPANDO_REC *rec;
+        int n, arg;
+
+	g_return_if_fail(key != NULL);
+	g_return_if_fail(funccount >= 1);
+	g_return_if_fail(funcs != NULL);
+	g_return_if_fail(funcs[0] != NULL);
+
+        rec = expando_find(key);
+	g_return_if_fail(rec != NULL);
+
+	if (rec->signals == 0) {
+		/* it's unknown when this expando changes..
+		   check it once in a second */
+                signal_remove("expando timer", funcs[EXPANDO_ARG_NONE]);
+	}
+
+	for (n = 0; n < rec->signals; n++) {
+		arg = rec->signal_args[n];
+		func = arg < funccount ? funcs[arg] : NULL;
+		if (func == NULL) func = funcs[EXPANDO_ARG_NONE];
+
+		signal_remove_id(rec->signal_ids[n], func);
+	}
+}
+
 EXPANDO_FUNC expando_find_char(char chr)
 {
 	g_return_val_if_fail(chr < sizeof(char_expandos) /
@@ -360,6 +428,12 @@ static void cmd_msg(const char *data, SERVER_REC *server)
 	cmd_params_free(free_arg);
 }
 
+static int sig_timer(void)
+{
+        signal_emit("expando timer", 0);
+        return 1;
+}
+
 void expandos_init(void)
 {
 #ifdef HAVE_SYS_UTSNAME_H
@@ -455,6 +529,7 @@ void expandos_init(void)
 		       "window changed", EXPANDO_ARG_NONE,
 		       "window server changed", EXPANDO_ARG_WINDOW, NULL);
 
+        timer_tag = g_timeout_add(1000, (GSourceFunc) sig_timer, NULL);
 	signal_add("command msg", (SIGNAL_FUNC) cmd_msg);
 	signal_add("message public", (SIGNAL_FUNC) sig_message_public);
 	signal_add("message private", (SIGNAL_FUNC) sig_message_private);
@@ -479,6 +554,7 @@ void expandos_deinit(void)
 	g_free_not_null(last_privmsg_from); g_free_not_null(last_public_from);
 	g_free_not_null(sysname); g_free_not_null(sysrelease);
 
+        g_source_remove(timer_tag);
 	signal_remove("message public", (SIGNAL_FUNC) sig_message_public);
 	signal_remove("message private", (SIGNAL_FUNC) sig_message_private);
 	signal_remove("command msg", (SIGNAL_FUNC) cmd_msg);
diff --git a/src/core/expandos.h b/src/core/expandos.h
index 2ce00ecc..a937fcd1 100644
--- a/src/core/expandos.h
+++ b/src/core/expandos.h
@@ -1,6 +1,7 @@
 #ifndef __EXPANDOS_H
 #define __EXPANDOS_H
 
+#include "signals.h"
 #include "servers.h"
 
 /* first argument of signal must match to active .. */
@@ -25,6 +26,9 @@ void expando_add_signal(const char *key, const char *signal, ExpandoArg arg);
 /* Destroy expando */
 void expando_destroy(const char *key, EXPANDO_FUNC func);
 
+void expando_bind(const char *key, int funccount, SIGNAL_FUNC *funcs);
+void expando_unbind(const char *key, int funccount, SIGNAL_FUNC *funcs);
+
 /* internal: */
 EXPANDO_FUNC expando_find_char(char chr);
 EXPANDO_FUNC expando_find_long(const char *key);
diff --git a/src/core/signals.c b/src/core/signals.c
index 710d0687..3c1e4281 100644
--- a/src/core/signals.c
+++ b/src/core/signals.c
@@ -146,25 +146,24 @@ static int signal_remove_from_lists(SIGNAL_REC *rec, int signal_id,
         return 0;
 }
 
+void signal_remove_id(int signal_id, SIGNAL_FUNC func)
+{
+	SIGNAL_REC *rec;
+
+	g_return_if_fail(signal_id >= 0);
+	g_return_if_fail(func != NULL);
+
+	rec = g_hash_table_lookup(signals, GINT_TO_POINTER(signal_id));
+        if (rec != NULL)
+		signal_remove_from_lists(rec, signal_id, func);
+}
+
 /* unbind signal */
 void signal_remove(const char *signal, SIGNAL_FUNC func)
 {
-	SIGNAL_REC *rec;
-	int signal_id, found;
-
 	g_return_if_fail(signal != NULL);
-	g_return_if_fail(func != NULL);
 
-	signal_id = signal_get_uniq_id(signal);
-
-	rec = g_hash_table_lookup(signals, GINT_TO_POINTER(signal_id));
-	found = rec == NULL ? 0 :
-		signal_remove_from_lists(rec, signal_id, func);
-
-	if (!found) {
-		g_warning("signal_remove() : signal \"%s\" isn't "
-			  "grabbed for %p", signal, func);
-	}
+	signal_remove_id(signal_get_uniq_id(signal), func);
 }
 
 /* Remove all NULL functions from signal list */
diff --git a/src/core/signals.h b/src/core/signals.h
index 24e0ecbf..f1fabf6c 100644
--- a/src/core/signals.h
+++ b/src/core/signals.h
@@ -23,6 +23,7 @@ void signal_add_to_id(const char *module, int pos,
 
 /* unbind signal */
 void signal_remove(const char *signal, SIGNAL_FUNC func);
+void signal_remove_id(int signal_id, SIGNAL_FUNC func);
 
 /* emit signal */
 int signal_emit(const char *signal, int params, ...);
diff --git a/src/core/special-vars.c b/src/core/special-vars.c
index f3f7cf14..7d4deb78 100644
--- a/src/core/special-vars.c
+++ b/src/core/special-vars.c
@@ -125,7 +125,7 @@ static char *get_long_variable_value(const char *key, SERVER_REC *server,
 }
 
 static char *get_long_variable(char **cmd, SERVER_REC *server,
-			       void *item, int *free_ret)
+			       void *item, int *free_ret, int getname)
 {
 	char *start, *var, *ret;
 
@@ -134,30 +134,41 @@ static char *get_long_variable(char **cmd, SERVER_REC *server,
 	while (isvarchar((*cmd)[1])) (*cmd)++;
 
 	var = g_strndup(start, (int) (*cmd-start)+1);
+	if (getname) {
+		*free_ret = TRUE;
+                return var;
+	}
 	ret = get_long_variable_value(var, server, item, free_ret);
 	g_free(var);
 	return ret;
 }
 
-/* return the value of the variable found from `cmd' */
+/* return the value of the variable found from `cmd'.
+   if 'getname' is TRUE, return the name of the variable instead it's value */
 static char *get_variable(char **cmd, SERVER_REC *server, void *item,
-			  char **arglist, int *free_ret, int *arg_used)
+			  char **arglist, int *free_ret, int *arg_used,
+			  int getname)
 {
 	EXPANDO_FUNC func;
 
 	if (isdigit(**cmd) || **cmd == '*' || **cmd == '-' || **cmd == '~') {
-                /* argument */
+		/* argument */
 		*free_ret = TRUE;
 		if (arg_used != NULL) *arg_used = TRUE;
-		return get_argument(cmd, arglist);
+		return getname ? g_strdup_printf("%c", **cmd) :
+			get_argument(cmd, arglist);
 	}
 
 	if (isalpha(**cmd) && isvarchar((*cmd)[1])) {
 		/* long variable name.. */
-		return get_long_variable(cmd, server, item, free_ret);
+		return get_long_variable(cmd, server, item, free_ret, getname);
 	}
 
 	/* single character variable. */
+	if (getname) {
+		*free_ret = TRUE;
+                return g_strdup_printf("%c", **cmd);
+	}
 	*free_ret = FALSE;
 	func = expando_find_char(**cmd);
 	return func == NULL ? NULL : func(server, item, free_ret);
@@ -184,13 +195,17 @@ static char *get_history(char **cmd, void *item, int *free_ret)
 }
 
 static char *get_special_value(char **cmd, SERVER_REC *server, void *item,
-			       char **arglist, int *free_ret, int *arg_used)
+			       char **arglist, int *free_ret, int *arg_used,
+			       int flags)
 {
 	char command, *value, *p;
 	int len;
 
 	if (**cmd == '!') {
 		/* find text from command history */
+		if (flags & PARSE_FLAG_GETNAME)
+			return "!";
+
 		return get_history(cmd, item, free_ret);
 	}
 
@@ -203,12 +218,19 @@ static char *get_special_value(char **cmd, SERVER_REC *server, void *item,
 			/* default to $* */
 			char *temp_cmd = "*";
 
+			if (flags & PARSE_FLAG_GETNAME)
+                                return "*";
+
 			*free_ret = TRUE;
 			return get_argument(&temp_cmd, arglist);
 		}
 	}
 
-	value = get_variable(cmd, server, item, arglist, free_ret, arg_used);
+	value = get_variable(cmd, server, item, arglist, free_ret,
+			     arg_used, flags & PARSE_FLAG_GETNAME);
+
+	if (flags & PARSE_FLAG_GETNAME)
+		return value;
 
 	if (command == '#') {
 		/* number of words */
@@ -314,7 +336,7 @@ static char *get_alignment(const char *text, int align, int flags, char pad)
 /* Parse and expand text after '$' character. return value has to be
    g_free()'d if `free_ret' is TRUE. */
 char *parse_special(char **cmd, SERVER_REC *server, void *item,
-		    char **arglist, int *free_ret, int *arg_used)
+		    char **arglist, int *free_ret, int *arg_used, int flags)
 {
 	static char **nested_orig_cmd = NULL; /* FIXME: KLUDGE! */
 	char command, *value;
@@ -355,7 +377,8 @@ char *parse_special(char **cmd, SERVER_REC *server, void *item,
 		} else {
 			(*cmd)++;
 			nest_value = parse_special(cmd, server, item, arglist,
-						   &nest_free, arg_used);
+						   &nest_free, arg_used,
+						   flags);
 		}
 
 		while ((*nested_orig_cmd)[1] != '\0') {
@@ -377,10 +400,13 @@ char *parse_special(char **cmd, SERVER_REC *server, void *item,
 	}
 
 	value = get_special_value(cmd, server, item, arglist,
-				  free_ret, arg_used);
+				  free_ret, arg_used, flags);
 	if (**cmd == '\0')
 		g_error("parse_special() : buffer overflow!");
 
+	if (value != NULL && *value != '\0' && (flags & PARSE_FLAG_ISSET_ANY))
+		*arg_used = TRUE;
+
 	if (brackets) {
 		while (**cmd != '}' && (*cmd)[1] != '\0')
 			(*cmd)++;
@@ -388,7 +414,7 @@ char *parse_special(char **cmd, SERVER_REC *server, void *item,
 
 	if (nest_free) g_free(nest_value);
 
-	if (command == '[') {
+	if (command == '[' && (flags & PARSE_FLAG_GETNAME) == 0) {
 		/* alignment */
 		char *p;
 
@@ -406,7 +432,7 @@ char *parse_special(char **cmd, SERVER_REC *server, void *item,
 
 /* parse the whole string. $ and \ chars are replaced */
 char *parse_special_string(const char *cmd, SERVER_REC *server, void *item,
-			   const char *data, int *arg_used)
+			   const char *data, int *arg_used, int flags)
 {
 	char code, **arglist, *ret;
 	GString *str;
@@ -438,7 +464,8 @@ char *parse_special_string(const char *cmd, SERVER_REC *server, void *item,
 			char *ret;
 
 			ret = parse_special((char **) &cmd, server, item,
-					    arglist, &need_free, arg_used);
+					    arglist, &need_free, arg_used,
+					    flags);
 			if (ret != NULL) {
 				g_string_append(str, ret);
 				if (need_free) g_free(ret);
@@ -488,7 +515,7 @@ void eval_special_string(const char *cmd, const char *data,
 		}
 
 		ret = parse_special_string(start, server, item,
-					   data, &arg_used);
+					   data, &arg_used, 0);
 		if (arg_used) arg_used_ever = TRUE;
 
 		if (strchr(cmdchars, *ret) == NULL) {
@@ -525,3 +552,42 @@ void special_history_func_set(SPECIAL_HISTORY_FUNC func)
 {
 	history_func = func;
 }
+
+static void special_vars_signals_do(const char *text, int funccount,
+				    SIGNAL_FUNC *funcs, int bind)
+{
+	char *ret;
+        int need_free;
+
+	while (*text != '\0') {
+		if (*text == '\\' && text[1] != '\0') {
+			text += 2;
+		} else if (*text == '$' && text[1] != '\0') {
+			text++;
+			ret = parse_special((char **) &text, NULL, NULL,
+					    NULL, &need_free, NULL,
+					    PARSE_FLAG_GETNAME);
+			if (ret != NULL) {
+                                if (bind)
+					expando_bind(ret, funccount, funcs);
+                                else
+					expando_unbind(ret, funccount, funcs);
+				if (need_free) g_free(ret);
+			}
+
+		}
+                else text++;
+	}
+}
+
+void special_vars_add_signals(const char *text,
+			      int funccount, SIGNAL_FUNC *funcs)
+{
+        special_vars_signals_do(text, funccount, funcs, TRUE);
+}
+
+void special_vars_remove_signals(const char *text,
+				 int funccount, SIGNAL_FUNC *funcs)
+{
+        special_vars_signals_do(text, funccount, funcs, FALSE);
+}
diff --git a/src/core/special-vars.h b/src/core/special-vars.h
index 1b8b3e20..deb4de40 100644
--- a/src/core/special-vars.h
+++ b/src/core/special-vars.h
@@ -1,19 +1,23 @@
 #ifndef __SPECIAL_VARS_H
 #define __SPECIAL_VARS_H
 
+#include "signals.h"
 #include "servers.h"
 
+#define PARSE_FLAG_GETNAME	0x01 /* return argument name instead of it's value */
+#define PARSE_FLAG_ISSET_ANY	0x02 /* arg_used field specifies that at least one of the $variables was non-empty */
+
 typedef char* (*SPECIAL_HISTORY_FUNC)
 	(const char *text, void *item, int *free_ret);
 
 /* Parse and expand text after '$' character. return value has to be
    g_free()'d if `free_ret' is TRUE. */
 char *parse_special(char **cmd, SERVER_REC *server, void *item,
-		    char **arglist, int *free_ret, int *arg_used);
+		    char **arglist, int *free_ret, int *arg_used, int flags);
 
 /* parse the whole string. $ and \ chars are replaced */
 char *parse_special_string(const char *cmd, SERVER_REC *server, void *item,
-			   const char *data, int *arg_used);
+			   const char *data, int *arg_used, int flags);
 
 /* execute the commands in string - commands can be split with ';' */
 void eval_special_string(const char *cmd, const char *data,
@@ -21,4 +25,9 @@ void eval_special_string(const char *cmd, const char *data,
 
 void special_history_func_set(SPECIAL_HISTORY_FUNC func);
 
+void special_vars_add_signals(const char *text,
+			      int funccount, SIGNAL_FUNC *funcs);
+void special_vars_remove_signals(const char *text,
+				 int funccount, SIGNAL_FUNC *funcs);
+
 #endif
diff --git a/src/fe-common/core/fe-expandos.c b/src/fe-common/core/fe-expandos.c
index c90fa23c..7eb145db 100644
--- a/src/fe-common/core/fe-expandos.c
+++ b/src/fe-common/core/fe-expandos.c
@@ -29,13 +29,23 @@ static char *expando_winref(SERVER_REC *server, void *item, int *free_ret)
 	return g_strdup_printf("%d", active_win->refnum);
 }
 
+/* Window name */
+static char *expando_winname(SERVER_REC *server, void *item, int *free_ret)
+{
+	return active_win->name;
+}
+
 void fe_expandos_init(void)
 {
 	expando_create("winref", expando_winref,
-		       "window changed", EXPANDO_ARG_NONE, NULL);
+		       "window changed", EXPANDO_ARG_NONE,
+		       "window refnum changed", EXPANDO_ARG_WINDOW, NULL);
+	expando_create("winname", expando_winname,
+		       "window name changed", EXPANDO_ARG_WINDOW, NULL);
 }
 
 void fe_expandos_deinit(void)
 {
 	expando_destroy("winref", expando_winref);
+	expando_destroy("winname", expando_winname);
 }
diff --git a/src/fe-common/core/fe-log.c b/src/fe-common/core/fe-log.c
index 6b10541e..319bc85c 100644
--- a/src/fe-common/core/fe-log.c
+++ b/src/fe-common/core/fe-log.c
@@ -350,7 +350,8 @@ static void autolog_open(void *server, const char *target)
 		return;
 	}
 
-	fname = parse_special_string(autolog_path, server, NULL, target, NULL);
+	fname = parse_special_string(autolog_path, server, NULL,
+				     target, NULL, 0);
 	if (log_find(fname) == NULL) {
 		log = log_create_rec(fname, autolog_level);
 		log_item_add(log, LOG_ITEM_TARGET, target, server);
diff --git a/src/fe-common/core/fe-messages.c b/src/fe-common/core/fe-messages.c
index c1446517..39e59f27 100644
--- a/src/fe-common/core/fe-messages.c
+++ b/src/fe-common/core/fe-messages.c
@@ -169,7 +169,7 @@ static void cmd_msg(const char *data, SERVER_REC *server, WI_ITEM_REC *item)
 	if (strcmp(target, ",") == 0 || strcmp(target, ".") == 0) {
                 /* , and . are handled specially */
 		newtarget = parse_special(&target, server, item,
-					  NULL, &free_ret, NULL);
+					  NULL, &free_ret, NULL, 0);
 		if (newtarget == NULL) {
 			printformat(NULL, NULL, MSGLEVEL_CLIENTNOTICE,
 				    *target == ',' ? IRCTXT_NO_MSGS_GOT :
diff --git a/src/fe-common/core/formats.c b/src/fe-common/core/formats.c
index cd47588c..fc74c5a8 100644
--- a/src/fe-common/core/formats.c
+++ b/src/fe-common/core/formats.c
@@ -237,8 +237,10 @@ static char *format_get_text_args(TEXT_DEST_REC *dest,
 			/* argument */
 			char *ret;
 
-			ret = parse_special((char **) &text, active_win->active_server,
-					    active_win->active, arglist, &need_free, NULL);
+			ret = parse_special((char **) &text,
+					    active_win->active_server,
+					    active_win->active, arglist,
+					    &need_free, NULL, 0);
 
 			if (ret != NULL) {
 				/* string shouldn't end with \003 or it could
diff --git a/src/fe-common/core/themes.c b/src/fe-common/core/themes.c
index 06910f39..b3a79f14 100644
--- a/src/fe-common/core/themes.c
+++ b/src/fe-common/core/themes.c
@@ -137,7 +137,7 @@ static char *theme_replace_expand(THEME_REC *theme, int index,
 	abstract = rec->data;
 	abstract = theme_format_expand_data(theme, (const char **) &abstract,
 					    default_color, last_color, 0);
-	ret = parse_special_string(abstract, NULL, NULL, data, NULL);
+	ret = parse_special_string(abstract, NULL, NULL, data, NULL, 0);
 	g_free(abstract);
 	return ret;
 }
@@ -158,7 +158,7 @@ static void theme_format_append_variable(GString *str, const char **format)
 	(*format)++;
 
 	value = parse_special((char **) format, NULL, NULL,
-			      args, &free_ret, NULL );
+			      args, &free_ret, NULL, 0);
 	if (free_ret) g_free(value);
 	(*format)++;
 
@@ -290,7 +290,7 @@ static char *theme_format_expand_abstract(THEME_REC *theme,
 		g_free(tmp);
 	}
 
-	ret = parse_special_string(abstract, NULL, NULL, data, NULL);
+	ret = parse_special_string(abstract, NULL, NULL, data, NULL, 0);
 	g_free(abstract);
 	g_free(data);
 	return ret;
diff --git a/src/fe-text/gui-readline.c b/src/fe-text/gui-readline.c
index e8fc04a9..544e37d9 100644
--- a/src/fe-text/gui-readline.c
+++ b/src/fe-text/gui-readline.c
@@ -67,7 +67,7 @@ static void handle_key_redirect(int key)
 		func(key, data, active_win->active_server, active_win->active);
 
 	gui_entry_remove_perm_prompt();
-	window_update_prompt(active_win);
+	window_update_prompt();
 }
 
 static void handle_entry_redirect(const char *line)
@@ -83,7 +83,7 @@ static void handle_entry_redirect(const char *line)
 		func(line, data, active_win->active_server, active_win->active);
 
 	gui_entry_remove_perm_prompt();
-	window_update_prompt(active_win);
+	window_update_prompt();
 }
 
 static int get_scroll_count(void)
diff --git a/src/fe-text/gui-windows.c b/src/fe-text/gui-windows.c
index 8ad37451..7ef33474 100644
--- a/src/fe-text/gui-windows.c
+++ b/src/fe-text/gui-windows.c
@@ -23,6 +23,7 @@
 #include "servers.h"
 #include "misc.h"
 #include "settings.h"
+#include "special-vars.h"
 
 #include "irc.h"
 #include "channels.h"
@@ -47,6 +48,8 @@ static int linecache_tag;
 static int window_create_override;
 static int default_indent_pos;
 
+static char *prompt, *prompt_window;
+
 static GUI_WINDOW_REC *gui_window_init(WINDOW_REC *window, MAIN_WINDOW_REC *parent)
 {
 	GUI_WINDOW_REC *gui;
@@ -670,30 +673,51 @@ void gui_window_update_ypos(GUI_WINDOW_REC *gui)
 		gui->ypos += gui_window_get_linecount(gui, tmp->data);
 }
 
-void window_update_prompt(WINDOW_REC *window)
+void window_update_prompt(void)
 {
-	WI_ITEM_REC *item;
-	char *text, *str;
+        const char *special;
+	char *prompt, *text;
+        int var_used;
 
-	if (window != active_win) return;
-
-	item = window->active;
-	if (item != NULL)
-		text = item->name;
-	else if (window->name != NULL)
-		text = window->name;
-	else {
+	special = settings_get_str(active_win->active != NULL ?
+				   "prompt" : "prompt_window");
+	if (*special == '\0') {
 		gui_entry_set_prompt("");
 		return;
 	}
 
+	prompt = parse_special_string(special, active_win->active_server,
+				      active_win->active, "", &var_used,
+				      PARSE_FLAG_ISSET_ANY);
+	if (!var_used && strchr(special, '$') != NULL) {
+                /* none of the $vars had non-empty values, use empty prompt */
+		*prompt = '\0';
+	}
+
 	/* set prompt */
-	text = show_lowascii(text);
-	str = g_strdup_printf("[%1.17s] ", text);
+	text = show_lowascii(prompt);
+	gui_entry_set_prompt(text);
 	g_free(text);
 
-	gui_entry_set_prompt(str);
-	if (*str != '\0') g_free(str);
+	g_free(prompt);
+}
+
+static void window_update_prompt_server(SERVER_REC *server)
+{
+	if (server == active_win->active_server)
+                window_update_prompt();
+}
+
+static void window_update_prompt_window(WINDOW_REC *window)
+{
+	if (window == active_win)
+                window_update_prompt();
+}
+
+static void window_update_prompt_window_item(WI_ITEM_REC *item)
+{
+	if (item == active_win->active)
+                window_update_prompt();
 }
 
 void gui_window_reparent(WINDOW_REC *window, MAIN_WINDOW_REC *parent)
@@ -727,7 +751,7 @@ static void signal_window_changed(WINDOW_REC *window)
 	}
 
 	screen_refresh_freeze();
-	window_update_prompt(window);
+	window_update_prompt();
 	gui_window_redraw(window);
 	screen_refresh_thaw();
 }
@@ -1060,15 +1084,45 @@ void gui_window_reformat_line(WINDOW_REC *window, LINE_REC *line)
 	g_string_free(raw, TRUE);
 }
 
+static void sig_check_window_update(WINDOW_REC *window)
+{
+	if (window == active_win)
+                window_update_prompt();
+}
+
 static void read_settings(void)
 {
+	SIGNAL_FUNC funcs[] = {
+                (SIGNAL_FUNC) window_update_prompt,
+                (SIGNAL_FUNC) window_update_prompt_server,
+                (SIGNAL_FUNC) window_update_prompt_window,
+                (SIGNAL_FUNC) window_update_prompt_window_item
+	};
+
         default_indent_pos = settings_get_int("indent");
+
+	if (prompt != NULL) {
+		special_vars_remove_signals(prompt, 4, funcs);
+		special_vars_remove_signals(prompt_window, 4, funcs);
+		g_free(prompt);
+                g_free(prompt_window);
+	}
+	prompt = g_strdup(settings_get_str("prompt"));
+	prompt_window = g_strdup(settings_get_str("prompt_window"));
+
+	special_vars_add_signals(prompt, 4, funcs);
+	special_vars_add_signals(prompt_window, 4, funcs);
+
+	if (active_win != NULL) window_update_prompt();
 }
 
 void gui_windows_init(void)
 {
 	settings_add_int("lookandfeel", "indent", 10);
+	settings_add_str("lookandfeel", "prompt", "[$T] ");
+	settings_add_str("lookandfeel", "prompt_window", "[$winname] ");
 
+        prompt = NULL; prompt_window = NULL;
 	window_create_override = -1;
 	linecache_tag = g_timeout_add(LINE_CACHE_CHECK_TIME, (GSourceFunc) sig_check_linecache, NULL);
 
@@ -1077,15 +1131,15 @@ void gui_windows_init(void)
 	signal_add("window created", (SIGNAL_FUNC) gui_window_created);
 	signal_add("window destroyed", (SIGNAL_FUNC) gui_window_destroyed);
 	signal_add_first("window changed", (SIGNAL_FUNC) signal_window_changed);
-	signal_add("window item changed", (SIGNAL_FUNC) window_update_prompt);
-	signal_add("window name changed", (SIGNAL_FUNC) window_update_prompt);
-	signal_add("window item remove", (SIGNAL_FUNC) window_update_prompt);
+	signal_add("window item remove", (SIGNAL_FUNC) sig_check_window_update);
 	signal_add("setup changed", (SIGNAL_FUNC) read_settings);
 }
 
 void gui_windows_deinit(void)
 {
 	g_source_remove(linecache_tag);
+        g_free_not_null(prompt);
+        g_free_not_null(prompt_window);
 
 	while (windows != NULL)
 		window_destroy(windows->data);
@@ -1094,8 +1148,6 @@ void gui_windows_deinit(void)
 	signal_remove("window created", (SIGNAL_FUNC) gui_window_created);
 	signal_remove("window destroyed", (SIGNAL_FUNC) gui_window_destroyed);
 	signal_remove("window changed", (SIGNAL_FUNC) signal_window_changed);
-	signal_remove("window item changed", (SIGNAL_FUNC) window_update_prompt);
-	signal_remove("window name changed", (SIGNAL_FUNC) window_update_prompt);
-	signal_remove("window item remove", (SIGNAL_FUNC) window_update_prompt);
+	signal_remove("window item remove", (SIGNAL_FUNC) sig_check_window_update);
 	signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
 }
diff --git a/src/fe-text/gui-windows.h b/src/fe-text/gui-windows.h
index 23085b92..441f8713 100644
--- a/src/fe-text/gui-windows.h
+++ b/src/fe-text/gui-windows.h
@@ -113,7 +113,7 @@ void gui_window_reparent(WINDOW_REC *window, MAIN_WINDOW_REC *parent);
 #define is_window_bottom(gui) \
 	((gui)->ypos >= -1 && (gui)->ypos <= (gui)->parent->last_line-(gui)->parent->first_line)
 
-void window_update_prompt(WINDOW_REC *window);
+void window_update_prompt(void);
 void gui_window_newline(GUI_WINDOW_REC *gui, int visible);
 void gui_window_scroll(WINDOW_REC *window, int lines);
 void gui_window_update_ypos(GUI_WINDOW_REC *gui);
diff --git a/src/irc/core/ctcp.c b/src/irc/core/ctcp.c
index 3eb140f7..3d904dd0 100644
--- a/src/irc/core/ctcp.c
+++ b/src/irc/core/ctcp.c
@@ -87,7 +87,7 @@ static void ctcp_version(IRC_SERVER_REC *server, const char *data,
 	g_return_if_fail(nick != NULL);
 
 	reply = parse_special_string(settings_get_str("ctcp_version_reply"),
-				     SERVER(server), NULL, "", NULL);
+				     SERVER(server), NULL, "", NULL, 0);
 	str = g_strdup_printf("NOTICE %s :\001VERSION %s\001", nick, reply);
 	ctcp_send_reply(server, str);
 	g_free(str);
diff --git a/src/irc/core/irc-commands.c b/src/irc/core/irc-commands.c
index ed0984f8..67a91b5e 100644
--- a/src/irc/core/irc-commands.c
+++ b/src/irc/core/irc-commands.c
@@ -772,7 +772,7 @@ static void cmd_wall(const char *data, IRC_SERVER_REC *server, WI_ITEM_REC *item
 
 	args = g_strconcat(chanrec->name, " ", msg, NULL);
 	msg = parse_special_string(settings_get_str("wall_format"),
-				   SERVER(server), item, args, NULL);
+				   SERVER(server), item, args, NULL, 0);
 	g_free(args);
 
 	for (tmp = nicks; tmp != NULL; tmp = tmp->next) {