X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fparser.h;h=1437190b606b89640afabd4619a62c4fe21f65c8;hb=b39ce68f12c30eedb272b65fe78baec5864d89ca;hp=814fd2771b1240ccb14a86c4c8d5576f26c99d4b;hpb=6dd94a7fe90c6467024685fbac769067ddb74688;p=libs%2Fdatafile.git diff --git a/source/parser.h b/source/parser.h index 814fd27..1437190 100644 --- a/source/parser.h +++ b/source/parser.h @@ -1,10 +1,3 @@ -/* $Id$ - -This file is part of libmspdatafile -Copyright © 2006-2007 Mikko Rasa, Mikkosoft Productions -Distributed under the LGPL -*/ - #ifndef MSP_DATAFILE_PARSER_H_ #define MSP_DATAFILE_PARSER_H_ @@ -14,9 +7,11 @@ Distributed under the LGPL namespace Msp { namespace DataFile { +class Loader; +class LoaderAction; class ParserMode; class Statement; -struct Token; +struct StatementKey; /** Frontend for loading datafiles. Handles switching between text and binary @@ -26,22 +21,34 @@ statements may be read. class Parser { private: - Input in; + Input in; + std::string main_src; std::string src; - bool good; - ParserMode *mode; + bool good; + ParserMode *mode; public: Parser(IO::Base &i, const std::string &s); ~Parser(); - /** - Reads a statement from the input. If the end of input was reached, an empty - invalid statement will be returned. If an error occurs, the parser will be - marked as bad and no more statements may be read, even if the exception was - caught. - */ - Statement parse(); + /** Reads a statement from the input. If the end of input was reached, an + empty invalid statement will be returned. If an error occurs, the parser + will be marked as bad and no more statements may be read, even if the + exception was caught. */ + Statement parse(bool raw = false); + +private: + void process_control_statement(const Statement &); + +public: + /** Returns a key for the next statement, consisting of its keyword and + signature. Not supported in all modes. */ + const StatementKey *peek(unsigned); + + /** Parses a statement and feeds its arguments to an action. The action + must be appropriate for the statement. Use peek() to determine the + statement's signature. */ + bool parse_and_load(unsigned, Loader &, const LoaderAction &); operator bool() const { return good && in; } };