+
+static void print_token(FILE *fp, int type, YYSTYPE value)
+{
+ if (type != TOKEN_WORD)
+ return;
+ fprintf(fp, "%s", value.word->text);
+}
+
+struct grub2_statements *create_statements(struct grub2_parser *parser)
+{
+ struct grub2_statements *stmts = talloc(parser,
+ struct grub2_statements);
+ list_init(&stmts->list);
+ return stmts;
+}
+
+struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
+ struct grub2_argv *argv)
+{
+ struct grub2_statement_simple *stmt =
+ talloc(parser, struct grub2_statement_simple);
+ stmt->st.type = STMT_TYPE_SIMPLE;
+ stmt->st.exec = statement_simple_execute;
+ stmt->argv = argv;
+ return &stmt->st;
+}
+
+struct grub2_statement *create_statement_menuentry(struct grub2_parser *parser,
+ struct grub2_argv *argv, struct grub2_statements *stmts)
+{
+ struct grub2_statement_menuentry *stmt =
+ talloc(parser, struct grub2_statement_menuentry);
+ stmt->st.type = STMT_TYPE_MENUENTRY;
+ stmt->st.exec = statement_menuentry_execute;
+ stmt->argv = argv;
+ stmt->statements = stmts;
+ return &stmt->st;
+}
+
+struct grub2_statement *create_statement_conditional(
+ struct grub2_parser *parser,
+ struct grub2_statement *condition,
+ struct grub2_statements *statements)
+{
+ struct grub2_statement_conditional *stmt =
+ talloc(parser, struct grub2_statement_conditional);
+ stmt->st.type = STMT_TYPE_CONDITIONAL;
+ stmt->condition = condition;
+ stmt->statements = statements;
+ return &stmt->st;
+}
+
+struct grub2_statement *create_statement_if(struct grub2_parser *parser,
+ struct grub2_statement *conditional,
+ struct grub2_statements *elifs,
+ struct grub2_statements *else_case)
+{
+ struct grub2_statement_if *stmt =
+ talloc(parser, struct grub2_statement_if);
+
+ list_add(&elifs->list, &conditional->list);
+
+ stmt->st.type = STMT_TYPE_IF;
+ stmt->st.exec = statement_if_execute;
+ stmt->conditionals = elifs;
+ stmt->else_case = else_case;
+ return &stmt->st;
+}
+
+struct grub2_statement *create_statement_block(struct grub2_parser *parser,
+ struct grub2_statements *stmts)
+{
+ struct grub2_statement_block *stmt =
+ talloc(parser, struct grub2_statement_block);
+ stmt->st.type = STMT_TYPE_BLOCK;
+ stmt->st.exec = statement_block_execute;
+ stmt->statements = stmts;
+ 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)
+{
+ if (!stmt)
+ return;
+ list_add_tail(&stmts->list, &stmt->list);
+}
+
+struct grub2_word *create_word_text(struct grub2_parser *parser,
+ const char *text)
+{
+ struct grub2_word *word = talloc(parser, struct grub2_word);
+ word->type = GRUB2_WORD_TEXT;
+ word->split = false;
+ word->text = talloc_strdup(word, text);
+ word->next = NULL;
+ word->last = word;
+ return word;
+}
+
+struct grub2_word *create_word_var(struct grub2_parser *parser,
+ const char *name, bool split)
+{
+ struct grub2_word *word = talloc(parser, struct grub2_word);
+ word->type = GRUB2_WORD_VAR;
+ word->name = talloc_strdup(word, name);
+ word->split = split;
+ word->next = NULL;
+ word->last = word;
+ return word;
+}
+
+struct grub2_argv *create_argv(struct grub2_parser *parser)
+{
+ struct grub2_argv *argv = talloc(parser, struct grub2_argv);
+ list_init(&argv->words);
+ return argv;
+}
+
+void argv_append(struct grub2_argv *argv, struct grub2_word *word)
+{
+ list_add_tail(&argv->words, &word->argv_list);
+}
+
+void word_append(struct grub2_word *w1, struct grub2_word *w2)
+{
+ w1->last->next = w2;
+ w1->last = w2;
+}
+
+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, 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);
+
+ rc = yyparse(parser);
+
+ yy_delete_buffer(bufstate, parser->scanner);
+
+ if (!rc)
+ script_execute(parser->script);
+}
+