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/* Copyright (c) 2017 imv authors
This program 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
of the License, or (at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "commands.h"
#include "list.h"
struct command {
char* command;
void (*handler)(struct imv_list *args, void *data);
char* alias;
};
struct imv_commands *imv_commands_create(void)
{
struct imv_commands *cmds = malloc(sizeof(struct imv_commands));
cmds->command_list = imv_list_create();
return cmds;
}
void imv_commands_free(struct imv_commands *cmds)
{
for(size_t i = 0; i < cmds->command_list->len; ++i) {
struct command *cmd = cmds->command_list->items[i];
free(cmd->command);
if(cmd->alias) {
free(cmd->alias);
}
free(cmd);
}
imv_list_free(cmds->command_list);
free(cmds);
}
void imv_command_register(struct imv_commands *cmds, const char *command, void (*handler)())
{
struct command *cmd = malloc(sizeof(struct command));
cmd->command = strdup(command);
cmd->handler = handler;
cmd->alias = NULL;
imv_list_append(cmds->command_list, cmd);
}
void imv_command_alias(struct imv_commands *cmds, const char *command, const char *alias)
{
struct command *cmd = malloc(sizeof(struct command));
cmd->command = strdup(command);
cmd->handler = NULL;
cmd->alias = strdup(alias);
imv_list_append(cmds->command_list, cmd);
}
int imv_command_exec(struct imv_commands *cmds, const char *command, void *data)
{
struct imv_list *args = imv_split_string(command, ' ');
int ret = 1;
if(args->len > 0) {
for(size_t i = 0; i < cmds->command_list->len; ++i) {
struct command *cmd = cmds->command_list->items[i];
if(!strcmp(cmd->command, args->items[0])) {
if(cmd->handler) {
cmd->handler(args, data);
ret = 0;
} else if(cmd->alias) {
ret = imv_command_exec(cmds, cmd->alias, data);
}
break;
}
}
}
imv_list_deep_free(args);
return ret;
}
/* vim:set ts=2 sts=2 sw=2 et: */
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