From 91569105085ac7d1d3a1f5fc0f1adec83c81413b Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Mon, 17 Mar 2014 19:21:24 +0100 Subject: Remove flex scanner, use scanner from fastd (with lots of adjustions) --- mmss/lex.hpp | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 mmss/lex.hpp (limited to 'mmss/lex.hpp') diff --git a/mmss/lex.hpp b/mmss/lex.hpp new file mode 100644 index 0000000..19bbd4d --- /dev/null +++ b/mmss/lex.hpp @@ -0,0 +1,81 @@ +/* + Copyright (c) 2012-2014, Matthias Schiffer + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#pragma once + +#include "types.hpp" +#include + +#include +#include + + +namespace MMSS { + +class lex_t : public nocopy_t { +private: + std::FILE *file; + + bool needspace; + + size_t start; + size_t end; + size_t tok_len; + char buffer[1024]; + + + bool advance(); + bool next(YYLTYPE *yylloc, bool move); + void consume(bool needspace); + + int io_error(YYSTYPE *yylval); + int syntax_error(YYSTYPE *yylval); + int consume_comment(YYSTYPE *yylval, YYLTYPE *yylloc); + int unterminated_string(YYSTYPE *yylval); + + int parse_string(YYSTYPE *yylval, YYLTYPE *yylloc); + int parse_address(YYSTYPE *yylval, YYLTYPE *yylloc); + int parse_float(YYSTYPE *yylval, YYLTYPE *yylloc); + int parse_number(YYSTYPE *yylval, YYLTYPE *yylloc); + int parse_keyword(YYSTYPE *yylval, YYLTYPE *yylloc); + + + char current() { + return buffer[start + tok_len]; + } + + char* get_token() { + return strndup(buffer+start, tok_len); + } + + +public: + lex_t(FILE *file); + + int lex(YYSTYPE *yylval, YYLTYPE *yylloc); +}; + +} -- cgit v1.2.3