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while and until loops support

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This commit is contained in:
BVK Chaitanya 2010-01-23 11:19:26 +05:30
parent 3babea95bb
commit 10523df478
5 changed files with 100 additions and 5 deletions
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20
script/execute.c
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@ -308,6 +308,26 @@ grub_script_execute_cmdfor (struct grub_script_cmd *cmd)
return result;
}
/* Execute a "while" or "until" command. */
grub_err_t
grub_script_execute_cmdwhile (struct grub_script_cmd *cmd)
{
int cond;
int result;
struct grub_script_cmdwhile *cmdwhile = (struct grub_script_cmdwhile *) cmd;
result = 0;
do {
cond = grub_script_execute_cmd (cmdwhile->cond);
if ((cmdwhile->until && !cond) || (!cmdwhile->until && cond))
break;
result = grub_script_execute_cmd (cmdwhile->list);
} while (1); /* XXX Put a check for ^C here */
return result;
}
/* Execute the menu entry generate statement. */
grub_err_t
grub_script_execute_menuentry (struct grub_script_cmd *cmd)