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2005-11-06 Marco Gerards <mgerards@xs4all.nl>

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Add initial scripting support.

	* commands/test.c: New file.
	* include/grub/script.h: Likewise.
	* normal/execute.c: Likewise.
	* normal/function.c: Likewise.
	* normal/lexer.c: Likewise.
	* normal/parser.y: Likewise.
	* normal/script.c: Likewise.

	* configure.ac: Add `AC_PROG_YACC' test.

	* conf/i386-pc.rmk (grub_emu_SOURCES): Add `commands/test.c',
	`normal/execute.c', `normal/lexer.c', `grub_script.tab.c',
	`normal/function.c' and `normal/script.c'.
	(normal_mod_SOURCES): `normal/execute.c', `normal/lexer.c',
	`grub_script.tab.c', `normal/function.c' and `normal/script.c'.
	(test_mod_SOURCES, test_mod_CFLAGS, test_mod_LDFLAGS): New variables.
	(pkgdata_MODULES): Add `test.mod'.
	(grub_script.tab.c): New rule.
	(grub_script.tab.h): Likewise.

	* include/grub/err.h (grub_err_t): Add `GRUB_ERR_TEST_FAILURE'.

	* include/grub/normal.h (grub_test_init): New prototype.
	(grub_test_fini): Likewise.

	* normal/command.c: Include <grub/script.h>.
	(grub_command_execute): Rewritten.

	* util/grub-emu.c (main): Call `grub_test_init' and
	`grub_test_fini'.
This commit is contained in:
marco_g 2005-11-06 22:19:59 +00:00
parent 77500b2bf0
commit daac212ae3
16 changed files with 1702 additions and 76 deletions
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89
commands/test.c Normal file
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/* test.c -- The test command.. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2005 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 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 GRUB; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <grub/normal.h>
#include <grub/dl.h>
#include <grub/arg.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/env.h>
static grub_err_t
grub_cmd_test (struct grub_arg_list *state __attribute__ ((unused)), int argc,
char **args)
{
char *eq;
char *eqis;
/* XXX: No fancy expression evaluation yet. */
if (argc == 0)
return 0;
eq = grub_strdup (args[0]);
eqis = grub_strchr (eq, '=');
if (! eqis)
return 0;
*eqis = '\0';
eqis++;
/* Check an expression in the form `A=B'. */
if (grub_strcmp (eq, eqis))
grub_error (GRUB_ERR_TEST_FAILURE, "false");
grub_free (eq);
return grub_errno;
}
#ifdef GRUB_UTIL
void
grub_test_init (void)
{
grub_register_command ("[", grub_cmd_test, GRUB_COMMAND_FLAG_CMDLINE,
"[ EXPRESSION ]", "Evaluate an expression", 0);
grub_register_command ("test", grub_cmd_test, GRUB_COMMAND_FLAG_CMDLINE,
"test EXPRESSION", "Evaluate an expression", 0);
}
void
grub_test_fini (void)
{
grub_unregister_command ("[");
grub_unregister_command ("test");
}
#else /* ! GRUB_UTIL */
GRUB_MOD_INIT
{
(void)mod; /* To stop warning. */
grub_register_command ("[", grub_cmd_test, GRUB_COMMAND_FLAG_CMDLINE,
"[ EXPRESSION ]", "Evaluate an expression", 0);
grub_register_command ("test", grub_cmd_test, GRUB_COMMAND_FLAG_CMDLINE,
"test EXPRESSION", "Evaluate an expression", 0);
}
GRUB_MOD_FINI
{
grub_unregister_command ("[");
grub_unregister_command ("test");
}
#endif /* ! GRUB_UTIL */