X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=discover%2Fgrub2%2Fgrub2.h;h=07a1e6c7fe3517deb46e4786472cab0312a82f64;hb=352621fe8719c8488098719240252bc04c303963;hp=2c7951a5520c90e4c5b5040f6da81fedc634cb6e;hpb=1284a547ec73795d7d76dc099426fb89c3359f25;p=petitboot

diff --git a/discover/grub2/grub2.h b/discover/grub2/grub2.h
index 2c7951a..07a1e6c 100644
--- a/discover/grub2/grub2.h
+++ b/discover/grub2/grub2.h
@@ -1,10 +1,11 @@
 #ifndef GRUB2_H
 #define GRUB2_H
 
+#include <regex.h>
 #include <stdbool.h>
 #include <list/list.h>
 
-struct grub2_parser;
+struct grub2_script;
 
 struct grub2_word {
 	const char		*text;
@@ -18,42 +19,54 @@ struct grub2_argv {
 	struct list		words;
 };
 
+struct grub2_statements {
+	struct list		list;
+};
+
+struct grub2_statement {
+	struct list_item	list;
+	enum {
+		STMT_TYPE_SIMPLE,
+		STMT_TYPE_MENUENTRY,
+		STMT_TYPE_IF,
+		STMT_TYPE_BLOCK,
+	} type;
+	int			(*exec)(struct grub2_script *,
+					struct grub2_statement *);
+};
+
 struct grub2_statement_simple {
+	struct grub2_statement	st;
 	struct grub2_argv	*argv;
 };
 
 struct grub2_statement_menuentry {
+	struct grub2_statement	st;
 	struct grub2_argv	*argv;
 	struct grub2_statements	*statements;
 };
 
 struct grub2_statement_if {
+	struct grub2_statement	st;
 	struct grub2_statement	*condition;
 	struct grub2_statements	*true_case;
 	struct grub2_statements	*false_case;
 };
 
-struct grub2_statement {
-	struct list_item	list;
-	enum {
-		STMT_TYPE_SIMPLE,
-		STMT_TYPE_MENUENTRY,
-		STMT_TYPE_IF,
-	} type;
-	union {
-		struct grub2_statement_simple		simple;
-		struct grub2_statement_menuentry	menuentry;
-		struct grub2_statement_if		ifstmt;
-	};
+struct grub2_statement_block {
+	struct grub2_statement	st;
+	struct grub2_statements	*statements;
 };
 
-struct grub2_statements {
-	struct list		list;
+struct grub2_script {
+	struct grub2_statements	*statements;
+	struct list		environment;
+	regex_t			var_re;
 };
 
 struct grub2_parser {
 	void			*scanner;
-	struct grub2_statements	*statements;
+	struct grub2_script	*script;
 };
 
 struct grub2_statements *create_statements(struct grub2_parser *parser);
@@ -69,6 +82,9 @@ struct grub2_statement *create_statement_if(struct grub2_parser *parser,
 		struct grub2_statements *true_case,
 		struct grub2_statements *false_case);
 
+struct grub2_statement *create_statement_block(struct grub2_parser *parser,
+		struct grub2_statements *stmts);
+
 struct grub2_word *create_word(struct grub2_parser *parser, const char *text,
 		bool expand, bool split);
 
@@ -81,5 +97,15 @@ void argv_append(struct grub2_argv *argv, struct grub2_word *word);
 
 void word_append(struct grub2_word *w1, struct grub2_word *w2);
 
+/* script interface */
+void script_execute(struct grub2_script *script);
+
+int statement_simple_execute(struct grub2_script *script,
+		struct grub2_statement *statement);
+int statement_if_execute(struct grub2_script *script,
+		struct grub2_statement *statement);
+
+struct grub2_script *create_script(void *ctx);
+
 #endif /* GRUB2_H */