"setparams" command to update positional parameters.
* tests/grub_script_setparams.in: New test. * Makefile.util.def: Rules for new test. * grub-core/script/argv.c (grub_script_argv_make): New function. * grub-core/script/execute.c (replace_scope): New function. (grub_script_setparams): New function. * grub-core/script/lexer.c: Remove unused variables. * grub-core/script/main.c: Register/unregister setparams command. * include/grub/script_sh.h (grub_script_argv_make): New prototype. (grub_script_setparams): New prototype.
This commit is contained in:
BVK Chaitanya
commit
52e72f9d46
15
ChangeLog
15
ChangeLog
|
|
@ -1,3 +1,18 @@
|
|||
2010-09-04 BVK Chaitanya <bvk.groups@gmail.com>
|
||||
|
||||
"setparams" command to update positional parameters.
|
||||
|
||||
* tests/grub_script_setparams.in: New test.
|
||||
* Makefile.util.def: Rules for new test.
|
||||
|
||||
* grub-core/script/argv.c (grub_script_argv_make): New function.
|
||||
* grub-core/script/execute.c (replace_scope): New function.
|
||||
(grub_script_setparams): New function.
|
||||
* grub-core/script/lexer.c: Remove unused variables.
|
||||
* grub-core/script/main.c: Register/unregister setparams command.
|
||||
* include/grub/script_sh.h (grub_script_argv_make): New prototype.
|
||||
(grub_script_setparams): New prototype.
|
||||
|
||||
2010-09-04 BVK Chaitanya <bvk.groups@gmail.com>
|
||||
|
||||
* grub-core/normal/completion.c (grub_normal_do_completion): Fix
|
||||
|
|
|
|||
|
|
@ -507,6 +507,12 @@ script = {
|
|||
common = tests/grub_script_blockarg.in;
|
||||
};
|
||||
|
||||
script = {
|
||||
testcase;
|
||||
name = grub_script_setparams;
|
||||
common = tests/grub_script_setparams.in;
|
||||
};
|
||||
|
||||
program = {
|
||||
testcase;
|
||||
name = example_unit_test;
|
||||
|
|
|
|||
|
|
@ -59,6 +59,23 @@ grub_script_argv_free (struct grub_script_argv *argv)
|
|||
argv->script = 0;
|
||||
}
|
||||
|
||||
/* Make argv from argc, args pair. */
|
||||
int
|
||||
grub_script_argv_make (struct grub_script_argv *argv, int argc, char **args)
|
||||
{
|
||||
int i;
|
||||
struct grub_script_argv r = { 0, 0, 0 };
|
||||
|
||||
for (i = 0; i < argc; i++)
|
||||
if (grub_script_argv_next (&r) || grub_script_argv_append (&r, args[i]))
|
||||
{
|
||||
grub_script_argv_free (&r);
|
||||
return 1;
|
||||
}
|
||||
*argv = r;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Prepare for next argc. */
|
||||
int
|
||||
grub_script_argv_next (struct grub_script_argv *argv)
|
||||
|
|
|
|||
|
|
@ -35,13 +35,35 @@ static unsigned long is_continue;
|
|||
static unsigned long active_loops;
|
||||
static unsigned long active_breaks;
|
||||
|
||||
#define GRUB_SCRIPT_SCOPE_MALLOCED 1
|
||||
#define GRUB_SCRIPT_SCOPE_ARGS_MALLOCED 2
|
||||
|
||||
/* Scope for grub script functions. */
|
||||
struct grub_script_scope
|
||||
{
|
||||
unsigned flags;
|
||||
unsigned shifts;
|
||||
struct grub_script_argv argv;
|
||||
};
|
||||
static struct grub_script_scope *scope = 0;
|
||||
|
||||
static void
|
||||
replace_scope (struct grub_script_scope *new_scope)
|
||||
{
|
||||
if (scope)
|
||||
{
|
||||
scope->argv.argc += scope->shifts;
|
||||
scope->argv.args -= scope->shifts;
|
||||
|
||||
if (scope->flags & GRUB_SCRIPT_SCOPE_ARGS_MALLOCED)
|
||||
grub_script_argv_free (&scope->argv);
|
||||
|
||||
if (scope->flags & GRUB_SCRIPT_SCOPE_MALLOCED)
|
||||
grub_free (scope);
|
||||
}
|
||||
scope = new_scope;
|
||||
}
|
||||
|
||||
grub_err_t
|
||||
grub_script_break (grub_command_t cmd, int argc, char *argv[])
|
||||
{
|
||||
|
|
@ -86,11 +108,41 @@ grub_script_shift (grub_command_t cmd __attribute__((unused)),
|
|||
if (n > scope->argv.argc)
|
||||
return GRUB_ERR_BAD_ARGUMENT;
|
||||
|
||||
scope->shifts += n;
|
||||
scope->argv.argc -= n;
|
||||
scope->argv.args += n;
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
|
||||
grub_err_t
|
||||
grub_script_setparams (grub_command_t cmd __attribute__((unused)),
|
||||
int argc, char **args)
|
||||
{
|
||||
struct grub_script_scope *new_scope;
|
||||
struct grub_script_argv argv = { 0, 0, 0 };
|
||||
|
||||
if (! scope)
|
||||
return GRUB_ERR_INVALID_COMMAND;
|
||||
|
||||
new_scope = grub_malloc (sizeof (*new_scope));
|
||||
if (! new_scope)
|
||||
return grub_errno;
|
||||
|
||||
if (grub_script_argv_make (&argv, argc, args))
|
||||
{
|
||||
grub_free (new_scope);
|
||||
return grub_errno;
|
||||
}
|
||||
|
||||
new_scope->shifts = 0;
|
||||
new_scope->argv = argv;
|
||||
new_scope->flags = GRUB_SCRIPT_SCOPE_MALLOCED |
|
||||
GRUB_SCRIPT_SCOPE_ARGS_MALLOCED;
|
||||
|
||||
replace_scope (new_scope);
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
|
||||
static int
|
||||
grub_env_special (const char *name)
|
||||
{
|
||||
|
|
@ -105,6 +157,7 @@ grub_env_special (const char *name)
|
|||
static char **
|
||||
grub_script_env_get (const char *name, grub_script_arg_type_t type)
|
||||
{
|
||||
unsigned i;
|
||||
struct grub_script_argv result = { 0, 0, 0 };
|
||||
|
||||
if (grub_script_argv_next (&result))
|
||||
|
|
@ -139,8 +192,6 @@ grub_script_env_get (const char *name, grub_script_arg_type_t type)
|
|||
}
|
||||
else if (grub_strcmp (name, "*") == 0)
|
||||
{
|
||||
unsigned i;
|
||||
|
||||
for (i = 0; i < scope->argv.argc; i++)
|
||||
if (type == GRUB_SCRIPT_ARG_TYPE_VAR)
|
||||
{
|
||||
|
|
@ -161,8 +212,6 @@ grub_script_env_get (const char *name, grub_script_arg_type_t type)
|
|||
}
|
||||
else if (grub_strcmp (name, "@") == 0)
|
||||
{
|
||||
unsigned i;
|
||||
|
||||
for (i = 0; i < scope->argv.argc; i++)
|
||||
{
|
||||
if (i != 0 && grub_script_argv_next (&result))
|
||||
|
|
@ -311,6 +360,8 @@ grub_script_function_call (grub_script_function_t func, int argc, char **args)
|
|||
struct grub_script_scope new_scope;
|
||||
|
||||
active_loops = 0;
|
||||
new_scope.flags = 0;
|
||||
new_scope.shifts = 0;
|
||||
new_scope.argv.argc = argc;
|
||||
new_scope.argv.args = args;
|
||||
|
||||
|
|
@ -320,7 +371,7 @@ grub_script_function_call (grub_script_function_t func, int argc, char **args)
|
|||
ret = grub_script_execute (func->func);
|
||||
|
||||
active_loops = loops;
|
||||
scope = old_scope;
|
||||
replace_scope (old_scope); /* free any scopes by setparams */
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -205,8 +205,6 @@ struct grub_lexer_param *
|
|||
grub_script_lexer_init (struct grub_parser_param *parser, char *script,
|
||||
grub_reader_getline_t getline)
|
||||
{
|
||||
int len;
|
||||
YY_BUFFER_STATE buffer;
|
||||
struct grub_lexer_param *lexerstate;
|
||||
|
||||
lexerstate = grub_zalloc (sizeof (*lexerstate));
|
||||
|
|
|
|||
|
|
@ -44,6 +44,7 @@ grub_normal_parse_line (char *line, grub_reader_getline_t getline)
|
|||
static grub_command_t cmd_break;
|
||||
static grub_command_t cmd_continue;
|
||||
static grub_command_t cmd_shift;
|
||||
static grub_command_t cmd_setparams;
|
||||
|
||||
void
|
||||
grub_script_init (void)
|
||||
|
|
@ -54,6 +55,9 @@ grub_script_init (void)
|
|||
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."));
|
||||
}
|
||||
|
||||
void
|
||||
|
|
@ -70,4 +74,8 @@ grub_script_fini (void)
|
|||
if (cmd_shift)
|
||||
grub_unregister_command (cmd_shift);
|
||||
cmd_shift = 0;
|
||||
|
||||
if (cmd_setparams)
|
||||
grub_unregister_command (cmd_setparams);
|
||||
cmd_setparams = 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -248,6 +248,7 @@ void grub_script_fini (void);
|
|||
void grub_script_mem_free (struct grub_script_mem *mem);
|
||||
|
||||
void grub_script_argv_free (struct grub_script_argv *argv);
|
||||
int grub_script_argv_make (struct grub_script_argv *argv, int argc, char **args);
|
||||
int grub_script_argv_next (struct grub_script_argv *argv);
|
||||
int grub_script_argv_append (struct grub_script_argv *argv, const char *s);
|
||||
int grub_script_argv_split_append (struct grub_script_argv *argv, char *s);
|
||||
|
|
@ -342,6 +343,9 @@ grub_err_t grub_script_break (grub_command_t cmd, int argc, char *argv[]);
|
|||
/* SHIFT command for GRUB script. */
|
||||
grub_err_t grub_script_shift (grub_command_t cmd, int argc, char *argv[]);
|
||||
|
||||
/* SETPARAMS command for GRUB script functions. */
|
||||
grub_err_t grub_script_setparams (grub_command_t cmd, int argc, char *argv[]);
|
||||
|
||||
/* This variable points to the parsed command. This is used to
|
||||
communicate with the bison code. */
|
||||
extern struct grub_script_cmd *grub_script_parsed;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,59 @@
|
|||
#! @builddir@/grub-shell-tester
|
||||
|
||||
# Run GRUB script in a Qemu instance
|
||||
# Copyright (C) 2010 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/>.
|
||||
|
||||
if test x$grubshell = xyes; then cmd=setparams; else cmd=set; fi
|
||||
|
||||
function f1 {
|
||||
echo $#
|
||||
echo "$#"
|
||||
|
||||
echo $@
|
||||
echo "$@"
|
||||
|
||||
echo $*
|
||||
echo "$*"
|
||||
|
||||
echo $1 $2
|
||||
for v in "$@"; do echo $v; done
|
||||
shift
|
||||
echo $1 $2
|
||||
for v in "$@"; do echo $v; done
|
||||
|
||||
$cmd 1 2 3 4
|
||||
|
||||
echo $#
|
||||
echo "$#"
|
||||
|
||||
echo $@
|
||||
echo "$@"
|
||||
|
||||
echo $*
|
||||
echo "$*"
|
||||
|
||||
echo $1 $2
|
||||
for v in "$@"; do echo $v; done
|
||||
shift
|
||||
echo $1 $2
|
||||
for v in "$@"; do echo $v; done
|
||||
}
|
||||
# f1
|
||||
# f1 a
|
||||
f1 a b
|
||||
f1 a b c
|
||||
f1 a b c d
|
||||
f1 a b c d e
|
||||
Loading…
Reference in New Issue