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/* This file is part of GNU Dico.
Copyright (C) 2008-2018 Sergey Poznyakoff
GNU Dico 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, or (at your option)
any later version.
GNU Dico 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 GNU Dico. If not, see <http://www.gnu.org/licenses/>. */
#include <dicod.h>
struct dicod_capa {
const char *name;
struct dicod_command *cmd;
int (*init)(void *);
void *closure;
int enabled;
};
/* List of supported capabilities: */
static dico_list_t /* of struct dicod_capa */ capa_list;
static int
_cmp_capa_name(const void *item, const void *data, void *unused)
{
const struct dicod_capa *cp = item;
return strcmp(cp->name, (char*)data);
}
void
dicod_capa_register(const char *name, struct dicod_command *cmd,
int (*init)(void*), void *closure)
{
struct dicod_capa *cp = xmalloc(sizeof(*cp));
cp->name = name;
cp->cmd = cmd;
cp->init = init;
cp->closure = closure;
cp->enabled = 0;
if (!capa_list) {
capa_list = xdico_list_create();
dico_list_set_comparator(capa_list, _cmp_capa_name, NULL);
}
xdico_list_append(capa_list, cp);
}
int
dicod_capa_add(const char *name)
{
struct dicod_capa *cp = dico_list_locate(capa_list, (void*)name);
if (cp == NULL)
return 1;
cp->enabled = 1;
return 0;
}
int
dicod_capa_is_enabled(const char *name)
{
struct dicod_capa *cp = dico_list_locate(capa_list, (void*)name);
return cp ? cp->enabled : 0;
}
int
dicod_capa_flush(void)
{
dico_iterator_t itr;
struct dicod_capa *cp;
itr = xdico_list_iterator(capa_list);
for (cp = dico_iterator_first(itr); cp; cp = dico_iterator_next(itr)) {
if (cp->enabled) {
if (cp->init && cp->init(cp->closure))
return 1;
if (cp->cmd) {
struct dicod_command *cmd;
for (cmd = cp->cmd; cmd->keyword; cmd++)
dicod_add_command(cmd);
}
}
}
return 0;
}
struct iter_data {
int (*fun)(const char*, int, void *);
void *closure;
};
static int
_iter_helper(void *item, void *data)
{
struct dicod_capa *cp = item;
struct iter_data *dp = data;
return dp->fun(cp->name, cp->enabled, dp->closure);
}
void
dicod_capa_iterate(int (*fun)(const char*, int, void *), void *closure)
{
struct iter_data dat;
dat.fun = fun;
dat.closure = closure;
dico_list_iterate(capa_list, _iter_helper, &dat);
}
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