Created config/conflists.c for shared config list handling

src/config/conflists.c

@@ -0,0 +1,82 @@
+/*
+ * conflists.c
+ *
+ * Copyright (C) 2012 - 2015 James Booth <boothj5@gmail.com>
+ *
+ * This file is part of Profanity.
+ *
+ * Profanity is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Profanity is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Profanity.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link the code of portions of this program with the OpenSSL library under
+ * certain conditions as described in each individual source file, and
+ * distribute linked combinations including the two.
+ *
+ * You must obey the GNU General Public License in all respects for all of the
+ * code used other than OpenSSL. If you modify file(s) with this exception, you
+ * may extend this exception to your version of the file(s), but you are not
+ * obligated to do so. If you do not wish to do so, delete this exception
+ * statement from your version. If you delete this exception statement from all
+ * source files in the program, then also delete it here.
+ *
+ */
+
+#include <string.h>
+#include <glib.h>
+
+gboolean
+conf_string_list_remove(GKeyFile *keyfile, const char *const group, const char *const key, const char *const item)
+{
+    gsize length;
+    gchar **list = g_key_file_get_string_list(keyfile, group, key, &length, NULL);
+
+    gboolean deleted = FALSE;
+    if (list) {
+        int i = 0;
+        GList *glist = NULL;
+
+        for (i = 0; i < length; i++) {
+            // item found, mark as deleted
+            if (strcmp(list[i], item) == 0) {
+                deleted = TRUE;
+            } else {
+                // add item to our g_list
+                glist = g_list_append(glist, strdup(list[i]));
+            }
+        }
+
+        if (deleted) {
+            if (g_list_length(glist) == 0) {
+                g_key_file_remove_key(keyfile, group, key, NULL);
+            } else {
+                // create the new list entry
+                const gchar* new_list[g_list_length(glist)+1];
+                GList *curr = glist;
+                i = 0;
+                while (curr) {
+                    new_list[i++] = strdup(curr->data);
+                    curr = g_list_next(curr);
+                }
+                new_list[i] = NULL;
+                g_key_file_set_string_list(keyfile, group, key, new_list, g_list_length(glist));
+            }
+        }
+
+        g_list_free_full(glist, g_free);
+    }
+
+    g_strfreev(list);
+
+    return deleted;
+}