grub/grub-core/script/main.c
2010-09-04 20:44:44 +05:30

88 lines
2.5 KiB
C

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* GRUB 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.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/dl.h>
#include <grub/i18n.h>
#include <grub/parser.h>
#include <grub/script_sh.h>
grub_err_t
grub_normal_parse_line (char *line, grub_reader_getline_t getline)
{
struct grub_script *parsed_script;
/* Parse the script. */
parsed_script = grub_script_parse (line, getline);
if (parsed_script)
{
/* Execute the command(s). */
grub_script_execute (parsed_script);
/* The parsed script was executed, throw it away. */
grub_script_unref (parsed_script);
}
return grub_errno;
}
static grub_command_t cmd_break;
static grub_command_t cmd_continue;
static grub_command_t cmd_shift;
static grub_command_t cmd_setparams;
static grub_command_t cmd_return;
void
grub_script_init (void)
{
cmd_break = grub_register_command ("break", grub_script_break,
N_("[n]"), N_("Exit from loops"));
cmd_continue = grub_register_command ("continue", grub_script_break,
N_("[n]"), N_("Continue loops"));
cmd_shift = grub_register_command ("shift", grub_script_shift,
N_("[n]"), N_("Shift positional parameters."));
cmd_setparams = grub_register_command ("setparams", grub_script_setparams,
N_("[VALUE]..."),
N_("Set positional parameters."));
cmd_return = grub_register_command ("return", grub_script_return,
N_("[n]"), N_("Return from a function."));
}
void
grub_script_fini (void)
{
if (cmd_break)
grub_unregister_command (cmd_break);
cmd_break = 0;
if (cmd_continue)
grub_unregister_command (cmd_continue);
cmd_continue = 0;
if (cmd_shift)
grub_unregister_command (cmd_shift);
cmd_shift = 0;
if (cmd_setparams)
grub_unregister_command (cmd_setparams);
cmd_setparams = 0;
if (cmd_return)
grub_unregister_command (cmd_return);
cmd_return = 0;
}