From 738e33006b8987d806fe0686dfe4be52a319b7dc Mon Sep 17 00:00:00 2001
From: Pavel Roskin <proski@gnu.org>
Date: Tue, 18 Feb 2003 06:12:57 +0000
Subject: [PATCH] * util.c (list_append_unique): New function - add text to
 GList and remove duplicates. * main.c (directory_history_add): Use
 list_append_unique(). * widget.c (push_history): Likewise.

---
 src/ChangeLog |  5 +++++
 src/main.c    |  2 +-
 src/util.c    | 19 +++++++++++++++++++
 src/util.h    |  1 +
 src/widget.c  |  2 +-
 5 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/src/ChangeLog b/src/ChangeLog
index 1717fefa8..b95f7764f 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,10 @@
 2003-02-18  Pavel Roskin  <proski@gnu.org>
 
+	* util.c (list_append_unique): New function - add text to GList
+	and remove duplicates.
+	* main.c (directory_history_add): Use list_append_unique().
+	* widget.c (push_history): Likewise.
+
 	* panel.h: Convert directory history to GList.
 	* widget.h: Convert input history to GList.
 	Adjust all dependencies.
diff --git a/src/main.c b/src/main.c
index fc18e9012..ad68ba628 100644
--- a/src/main.c
+++ b/src/main.c
@@ -697,7 +697,7 @@ directory_history_add (struct WPanel *panel, char *s)
     text = g_strdup (s);
     strip_password (s, 1);
 
-    panel->dir_history = g_list_append (panel->dir_history, text);
+    panel->dir_history = list_append_unique (panel->dir_history, text);
 }
 
 /*
diff --git a/src/util.c b/src/util.c
index 35b6f9014..ff9c5c3fb 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1163,6 +1163,25 @@ concat_dir_and_file (const char *dir, const char *file)
 	return  g_strconcat (dir, PATH_SEP_STR, file, NULL);
 }
 
+
+/* Append text to GList, remove all entries with the same text */
+GList *
+list_append_unique (GList *list, char *text)
+{
+    GList *link, *newlink;
+
+    link = g_list_first (list);
+    while (link) {
+	newlink = g_list_next (link);
+	if (!strcmp ((char *) link->data, text))
+	    list = g_list_remove_link (list, link);
+	link = newlink;
+    }
+
+    return g_list_append (list, text);
+}
+
+
 /* Following code heavily borrows from libiberty, mkstemps.c */
 
 /* Number of attempts to create a temporary file */
diff --git a/src/util.h b/src/util.h
index 0b53e7b0c..f22947ab5 100644
--- a/src/util.h
+++ b/src/util.h
@@ -125,6 +125,7 @@ void execute_hooks (Hook *hook_list);
 void delete_hook (Hook **hook_list, void (*hook_fn)(void *));
 int hook_present (Hook *hook_list, void (*hook_fn)(void *));
 
+GList *list_append_unique (GList *list, char *text);
 
 /* Position saving and restoring */
 
diff --git a/src/widget.c b/src/widget.c
index 845e2d08c..6690aea9a 100644
--- a/src/widget.c
+++ b/src/widget.c
@@ -1079,7 +1079,7 @@ push_history (WInput *in, char *text)
 	    strip_password (t, 1);
     }
 
-    in->history = g_list_append (in->history, t);
+    in->history = list_append_unique (in->history, t);
     in->need_push = 0;
 
     return 2;