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added elif patch from Deepak Vankadaru

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This commit is contained in:
BVK Chaitanya 2010-03-21 10:27:21 +05:30
parent 8c85123cd5
commit 0f3a3e3ece
3 changed files with 57 additions and 12 deletions
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34
script/parser.y
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@ -74,7 +74,7 @@
%token <arg> GRUB_PARSER_TOKEN_WORD "word"
%type <arglist> word argument arguments0 arguments1
%type <cmd> script_init script grubcmd ifcmd forcmd command
%type <cmd> script_init script grubcmd ifclause ifcmd forcmd command
%type <cmd> commands1 menuentry statement
%pure-parser
@ -224,18 +224,28 @@ menuentry: "menuentry"
}
;
if: "if" { grub_script_lexer_ref (state->lexerstate); }
ifcmd: "if"
{
grub_script_lexer_ref (state->lexerstate);
}
ifclause "fi"
{
$$ = $3;
grub_script_lexer_deref (state->lexerstate);
}
;
ifcmd: if commands1 delimiters1 "then" commands1 delimiters1 "fi"
{
$$ = grub_script_create_cmdif (state, $2, $5, 0);
grub_script_lexer_deref (state->lexerstate);
}
| if commands1 delimiters1 "then" commands1 delimiters1 "else" commands1 delimiters1 "fi"
{
$$ = grub_script_create_cmdif (state, $2, $5, $8);
grub_script_lexer_deref (state->lexerstate);
}
ifclause: commands1 delimiters1 "then" commands1 delimiters1
{
$$ = grub_script_create_cmdif (state, $1, $4, 0);
}
| commands1 delimiters1 "then" commands1 delimiters1 "else" commands1 delimiters1
{
$$ = grub_script_create_cmdif (state, $1, $4, $7);
}
| commands1 delimiters1 "then" commands1 delimiters1 "elif" ifclause
{
$$ = grub_script_create_cmdif (state, $1, $4, $7);
}
;
forcmd: "for" "name"