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/* 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.
*/
#ifndef FILE_plugin_depend_c_SEEN
#define FILE_plugin_depend_c_SEEN
/* translates a string in format `plugin/command' into a pointer to the command
DON'T plan on using the string again, it will be mutilated!
(so we go ahead and free() it and set the pointer to NULL) */
struct plugin_command *
_plugin_depend_parse (char **string, struct plugin_command *root)
{
struct plugin_command *command=NULL;
if (*string==NULL)
*string=root;
else {
/* *string is in the format `plugin/command' */
/* char *del=delimeter */
char *del=strchr(*string,'/');
del[0]='\0';
/// *string = PLUGIN_NAME
/// &del[1] = COMMAND_NAME
struct plugin *plugin;
plugin =_plugin_find_plugin(root, *string );
if (plugin==NULL)
error(EXIT_FAILURE,0,"cannot find plugin `%s'",*string);
command=_plugin_find_plugin_command(plugin->child, &del[1] );
if (command==NULL)
error(EXIT_FAILURE,0,
"plugin `%s' does not contain command `%s'",
*string,&del[1]);
xfree(*string);
*string=NULL;
}
return command;
}
/* used by _plugin_depend_add */
void
_plugin_depend_add2 (struct plugin_command *prev,
struct plugin_command *next)
{
if (prev->d_next==NULL) {
prev->d_next=next;
} else {
_plugin_depend_add2(prev->d_next,next);
}
}
/* _plugin_depend_add(depend,depender) */
void
_plugin_depend_add (struct plugin_command *depend,
struct plugin_command *depender)
{
if (depend->child==NULL) {
depend->child=depender;
} else {
_plugin_depend_add2(depend->child,depender);
}
}
/* take care of depends for `command', and those after it (linked list) */
void
_plugin_depend_command (struct plugin_command *command,
struct plugin_command *root)
{
if (command->depends == NULL) {
command->depend=root;
} else {
command->depend=_plugin_depend_parse(root,command->depends);
command->depends=NULL;
}
_plugin_depend_add(command->depend,command);
if (command->p_next != NULL)
_plugin_depend_command(command->p_next,root);
}
/* take care of commands for a `plugin', and those after it (linked list) */
void
_plugin_depend_plugin_all (struct plugin *plugin, struct plugin_command *root)
{
_plugin_depend_command(plugin->child,root);
if (plugin->next != NULL) {
_plugin_depend_plugin_all(plugin->next,root);
}
}
/* take care of all depends */
struct plugin_command *
_plugin_depend_all (struct plugin_command *plugins)
{
struct plugin_command *root=mkcommand();
_plugin_depend_plugin_all(*plugins,root);
return root;
}
/* take care of all depends for a particular command */
struct plugin_command *
_plugin_depend_name (char *name, struct plugin_command *plugins)
{
struct plugin_command *root=mkcommand();
/* code goes here */
return root;
}
#endif
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