1 files changed, 103 insertions, 0 deletions
diff --git a/wrapper/plugin-find.c b/wrapper/plugin-find.c
new file mode 100644
index 0000000..98e16af
--- /dev/null
+++ b/wrapper/plugin-find.c
@@ -0,0 +1,103 @@
+/* wrapper/plugin-find.h -- search functions for rvs plugins
+   system depends: <string.h>
+   Copyright (C) 2009 Luke Shumaker
+   
+   This file is part of rvs.
+   
+   rvs 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 2, or (at your
+   option) any later version.
+   
+   rvs 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 rvs; see the file COPYING.
+   If not, write to the Free Software Foundation,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include <string.h> /* only uses `strcmp' */
+
+#include "rvs.h"
+#include "plugins.h"
+
+#include "plugin-find.h"
+
+/* returns first plugin with `name' (duplicates are... unwise) */
+struct plugin *
+plugin_find_plugin(struct plugin *node, char *name)
+{
+	
+	if (node==NULL)
+		return node;
+	else {
+		if (strcmp(node->name,name) == 0)
+			return node;
+		else
+			return plugin_find_plugin(node->next,name);
+	}
+}
+
+/* returns plugin `name within plugin `node' */ 
+struct plugin_command *
+plugin_find_plugin_command(struct plugin_command *node, char *name)
+{
+	if (node==NULL)
+		return node;
+	else {
+		if (strcmp(node->name,name) == 0)
+			return node;
+		else
+			return plugin_find_plugin_command(node->next,name);
+	}
+}
+
+/* returns the first command with `name' it finds */
+struct plugin_command *
+plugin_find_command(struct plugin *plugin, char *name)
+{
+	if (plugin==NULL)
+		return NULL;
+	else {
+		struct plugin_command *ret;
+		ret=plugin_find_plugin_command(plugin->commands,name);
+		if (ret == NULL)
+			ret=plugin_find_command(plugin->next,name);
+		return ret;
+	}
+}
+
+/* returns a linked list of all commands with `name' it finds */
+struct plugin_command_list *
+plugin_find_commands(struct plugin *plugin, char *name)
+{
+	if (plugin==NULL)
+		return NULL;
+	else {
+		struct plugin_command *command;
+		command=plugin_find_command(plugin,name);
+		struct plugin_command_list *node;
+		if (command==NULL)
+			node=plugin_find_commands(plugin->next,name);
+		else {
+			node=xmalloc( sizeof *node );
+			node->command=command;
+			node->next=plugin_find_commands(plugin->next,name);
+		}
+		return node;
+	}
+}
+
+void
+plugin_free_list(struct plugin_command_list *node)
+{
+	if (node!=NULL) {
+		plugin_free_list(node->next);
+		xfree(node);
+	}
+}
+