#ifndef GRUB2_H
#define GRUB2_H
+#include <stdbool.h>
+#include <list/list.h>
+
+struct grub2_script;
+
+struct grub2_word {
+ enum {
+ GRUB2_WORD_TEXT,
+ GRUB2_WORD_VAR,
+ } type;
+ union {
+ char *text;
+ struct {
+ const char *name;
+ bool split;
+ } var;
+ };
+ struct grub2_word *next;
+ struct grub2_word *last;
+ struct list_item argv_list;
+};
+
+struct grub2_argv {
+ struct list words;
+
+ /* postprocessing (with process_expansions) populates these to hand to
+ * the grub2_command callbacks */
+ char **argv;
+ int argc;
+};
+
+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_block {
+ struct grub2_statement st;
+ struct grub2_statements *statements;
+};
+
+struct grub2_command {
+ const char *name;
+ int (*exec)(struct grub2_script *script,
+ int argc, char *argv[]);
+ struct list_item list;
+};
+
+struct grub2_script {
+ struct grub2_statements *statements;
+ struct list environment;
+ struct list commands;
+ struct list symtab;
+};
+
struct grub2_parser {
- void *scanner;
+ void *scanner;
+ struct grub2_script *script;
};
+struct grub2_statements *create_statements(struct grub2_parser *parser);
+
+struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
+ struct grub2_argv *argv);
+
+struct grub2_statement *create_statement_menuentry(struct grub2_parser *parser,
+ struct grub2_argv *argv, struct grub2_statements *stmts);
+
+struct grub2_statement *create_statement_if(struct grub2_parser *parser,
+ struct grub2_statement *condition,
+ 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_text(struct grub2_parser *parser,
+ const char *text);
+
+struct grub2_word *create_word_var(struct grub2_parser *parser,
+ const char *name, bool split);
+
+struct grub2_argv *create_argv(struct grub2_parser *parser);
+
+void statement_append(struct grub2_statements *stmts,
+ struct grub2_statement *stmt);
+
+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);
+int statement_menuentry_execute(struct grub2_script *script,
+ struct grub2_statement *statement);
+
+struct grub2_script *create_script(void *ctx);
+
+const char *script_env_get(struct grub2_script *script, const char *name);
+
+void script_env_set(struct grub2_script *script,
+ const char *name, const char *value);
+
+void script_register_command(struct grub2_script *script,
+ struct grub2_command *command);
+
+struct grub2_command *script_lookup_command(struct grub2_script *script,
+ const char *name);
+void register_builtins(struct grub2_script *script);
#endif /* GRUB2_H */