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92 lines
2.6 KiB
Plaintext
92 lines
2.6 KiB
Plaintext
/*
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* AsciiLexer.lpp, part of LatAnalyze 3
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*
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* Copyright (C) 2013 - 2016 Antonin Portelli
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*
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* LatAnalyze 3 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LatAnalyze 3 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
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*/
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%option reentrant
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%option prefix="_Ascii_"
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%option bison-bridge
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%option bison-locations
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%option noyywrap
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%option yylineno
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%{
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#include <LatAnalyze/Io/AsciiFile.hpp>
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#include "AsciiParser.hpp"
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using namespace std;
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using namespace Latan;
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#define YY_EXTRA_TYPE AsciiFile::AsciiParserState*
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#define YY_USER_ACTION \
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yylloc->first_line = yylloc->last_line = yylineno;\
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yylloc->first_column = yylloc->last_column + 1;\
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yylloc->last_column = yylloc->first_column + yyleng - 1;
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#define YY_INPUT(buf, result, max_size) \
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{ \
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(*yyextra->stream).read(buf,max_size);\
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result = (*yyextra->stream).gcount();\
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}
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#define YY_DEBUG 0
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#if (YY_DEBUG == 1)
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#define RETTOK(tok) cout << #tok << "(" << yytext << ")" << endl; return tok
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#else
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#define RETTOK(tok) return tok
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#endif
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%}
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DIGIT [0-9]
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ALPHA [a-zA-Z_+./-]
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SIGN \+|-
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EXP e|E
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INT {SIGN}?{DIGIT}+
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FLOAT {SIGN}?(({DIGIT}+\.{DIGIT}*)|({DIGIT}*\.{DIGIT}+))({EXP}{SIGN}?{INT}+)?
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LMARK #L
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BLANK [ \t]
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%x MARK TYPE
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%%
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{LMARK} {BEGIN(MARK);}
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{INT} {yylval->val_int = strTo<long int>(yytext); RETTOK(INT);}
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{FLOAT} {yylval->val_double = strTo<double>(yytext); RETTOK(FLOAT);}
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({ALPHA}|{DIGIT})+ {strcpy(yylval->val_str,yytext); RETTOK(ID);}
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<MARK>latan_begin {BEGIN(TYPE); RETTOK(OPEN);}
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<MARK>latan_end {BEGIN(TYPE); RETTOK(CLOSE);}
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<TYPE>mat {BEGIN(INITIAL); RETTOK(MAT);}
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<TYPE>rs_sample {BEGIN(INITIAL); RETTOK(SAMPLE);}
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<TYPE>rg_state {BEGIN(INITIAL); RETTOK(RG_STATE);}
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<*>\r*\n {yylloc->last_column = 0;}
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<*>[ \t]
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<*>. {yylval->val_char = yytext[0]; RETTOK(ERR);}
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%%
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void AsciiFile::AsciiParserState::initScanner()
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{
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yylex_init(&scanner);
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yyset_extra(this, scanner);
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}
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void AsciiFile::AsciiParserState::destroyScanner()
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{
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yylex_destroy(scanner);
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}
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