%pure-parser
%lex-param { yyscan_t scanner }
%parse-param { struct grub2_parser *parser }
+%error-verbose
%{
#include <talloc/talloc.h>
%token TOKEN_DO "do"
%token TOKEN_DONE "done"
%token TOKEN_ELIF "elif"
+%token TOKEN_ELSE "else"
%token TOKEN_ESAC "esac"
%token TOKEN_FI "fi"
%token TOKEN_FOR "for"
%token TOKEN_IN "in"
%token TOKEN_MENUENTRY "menuentry"
%token TOKEN_SELECT "select"
+%token TOKEN_SUBMENU "submenu"
%token TOKEN_THEN "then"
%token TOKEN_TIME "time"
%token TOKEN_UTIL "until"
"fi" TOKEN_EOL {
$$ = create_statement_if(parser, $3, $6, NULL);
}
+ | "if" TOKEN_DELIM statement
+ "then" TOKEN_EOL
+ statements
+ "else" TOKEN_EOL
+ statements
+ "fi" TOKEN_EOL {
+ $$ = create_statement_if(parser, $3, $6, $9);
+ }
+ | "function" TOKEN_DELIM word TOKEN_DELIM '{' statements '}' {
+ $$ = create_statement_function(parser, $3, $6);
+ }
| "menuentry" TOKEN_DELIM words TOKEN_DELIM
'{' statements '}'
TOKEN_EOL {
$$ = create_statement_menuentry(parser, $3, $6);
}
+ | "submenu" TOKEN_DELIM words TOKEN_DELIM
+ '{' statements '}'
+ TOKEN_EOL {
+ /* we just flatten everything */
+ $$ = create_statement_block(parser, $6);
+ }
words: word {
$$ = create_argv(parser);
return &stmt->st;
}
+struct grub2_statement *create_statement_function(struct grub2_parser *parser,
+ struct grub2_word *name, struct grub2_statements *body)
+{
+ struct grub2_statement_function *stmt =
+ talloc(parser, struct grub2_statement_function);
+ stmt->st.exec = statement_function_execute;
+ stmt->name = name;
+ stmt->body = body;
+ return &stmt->st;
+}
+
void statement_append(struct grub2_statements *stmts,
struct grub2_statement *stmt)
{
w1->last = w2;
}
-struct grub2_parser *grub2_parser_create(void *ctx)
+struct grub2_parser *grub2_parser_create(struct discover_context *ctx)
{
struct grub2_parser *parser;
parser = talloc(ctx, struct grub2_parser);
yylex_init_extra(parser, &parser->scanner);
- parser->script = create_script(parser);
+ parser->script = create_script(parser, ctx);
return parser;
}
void grub2_parser_parse(struct grub2_parser *parser, char *buf, int len)
{
YY_BUFFER_STATE bufstate;
+ int rc;
bufstate = yy_scan_bytes(buf, len - 1, parser->scanner);
- yyparse(parser);
+ rc = yyparse(parser);
yy_delete_buffer(bufstate, parser->scanner);
- script_execute(parser->script);
+ if (!rc)
+ script_execute(parser->script);
}