irc: use option irc.look.nick_mode_empty to display nick prefix in bar item "input_prompt"

ChangeLog.asciidoc

@@ -51,6 +51,8 @@ http://weechat.org/files/releasenotes/ReleaseNotes-devel.html[release notes]
   weechat.look.buffer_time_format is not an empty string
 * core: fix translation of message displayed after /upgrade
 * api: fix crash when reading config options with NULL value (closes #238)
+* irc: use option irc.look.nick_mode_empty to display nick prefix in bar item
+  "input_prompt"
 * irc: remove IRC color codes from buffer title in channels (closes #237)
 * irc: add tag "nick_xxx" in invite messages
 * irc: fix completion of commands /msg, /notice and /query

src/plugins/irc/irc-bar-item.c

@@ -461,7 +461,8 @@ irc_bar_item_input_prompt (void *data, struct t_gui_bar_item *item,
         ptr_nick = irc_nick_search (server, channel, server->nick);
         if (ptr_nick)
         {
-            if (ptr_nick->prefix[0] != ' ')
+            if (weechat_config_boolean (irc_config_look_nick_mode_empty)
+                || (ptr_nick->prefix[0] != ' '))
             {
                 snprintf (str_prefix, sizeof (str_prefix), "%s%s",
                           weechat_color (

src/plugins/irc/irc-config.c

@@ -2592,7 +2592,7 @@ irc_config_init ()
         N_("display a space if nick mode is enabled but nick has no mode (not "
            "op, voice, ...)"),
         NULL, 0, 0, "off", NULL, 0, NULL, NULL,
-        NULL, NULL, NULL, NULL);
+        &irc_config_change_bar_item_input_prompt, NULL, NULL, NULL);
     irc_config_look_notice_as_pv = weechat_config_new_option (
         irc_config_file, ptr_section,
         "notice_as_pv", "integer",