Mercurial > hg > octave-nkf
diff libinterp/parse-tree/parse.h @ 16294:0925d1f6875e
push parser/lexer interface
* lex.h, lex.ll (octave_push_lexer): New class.
(octave_base_lexer:is_push_lexer, octave_base_lexer::at_end_of_file,
octave_base_lexer::at_end_of_buffer): New functions.
(.): Handle special character (ASCII 0x01) that
octave_push_lexer::fill_flex_buffer returns for an end-of-buffer
condition.
* parse.h, oct-parse.in.yy (octave_push_parser): New class.
(octave_base_parser::parser_state): Move to octave_push_parser class.
(octave_base_parser::~octave_base_parser, octave_base_parser::init):
Delete special case for push parser.
* configure.ac (--enable-push-parser): Delete option handling. Both
push and pull parser interfaces will always be defined.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 13 Mar 2013 03:19:35 -0400 |
| parents | 57e87ddfee14 |
| children | bef822a80ffb |
line wrap: on
line diff
--- a/libinterp/parse-tree/parse.h +++ b/libinterp/parse-tree/parse.h @@ -137,7 +137,7 @@ curr_fcn_depth (0), primary_fcn_scope (-1), curr_class_name (), function_scopes (), primary_fcn_ptr (0), stmt_list (0), - lexer (lxr), parser_state (0) + lexer (lxr) { init (); } @@ -383,10 +383,6 @@ // State of the lexer. octave_base_lexer& lexer; - // Internal state of the parser. Only used if USE_PUSH_PARSER is - // defined. - void *parser_state; - private: // No copying! @@ -426,4 +422,33 @@ octave_parser& operator = (const octave_parser&); }; +class +octave_push_parser : public octave_base_parser +{ +public: + + octave_push_parser (void) + : octave_base_parser (*(new octave_push_lexer ())), parser_state (0) + { + init (); + } + + ~octave_push_parser (void); + + void init (void); + + int run (const std::string& input, bool eof); + +private: + + // Internal state of the Bison parser. + void *parser_state; + + // No copying! + + octave_push_parser (const octave_push_parser&); + + octave_push_parser& operator = (const octave_push_parser&); +}; + #endif