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LatAnalyze/lib/Io/AsciiLexer.lpp

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/*
* AsciiLexer.lpp, part of LatAnalyze 3
*
* Copyright (C) 2013 - 2020 Antonin Portelli
*
* LatAnalyze 3 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* LatAnalyze 3 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
*/
%option reentrant
%option prefix="_Ascii_"
%option bison-bridge
%option bison-locations
%option noyywrap
%option yylineno
%{
#include <LatAnalyze/Io/AsciiFile.hpp>
#include "AsciiParser.hpp"
using namespace std;
using namespace Latan;
#define YY_EXTRA_TYPE AsciiFile::AsciiParserState*
#define YY_USER_ACTION \
yylloc->first_line = yylloc->last_line = yylineno;\
yylloc->first_column = yylloc->last_column + 1;\
yylloc->last_column = yylloc->first_column + yyleng - 1;
#define YY_INPUT(buf, result, max_size) \
{ \
(*yyextra->stream).read(buf,max_size);\
result = (*yyextra->stream).gcount();\
}
#define YY_DEBUG 0
#if (YY_DEBUG == 1)
#define RETTOK(tok) cout << #tok << "(" << yytext << ")" << endl; return tok
#else
#define RETTOK(tok) return tok
#endif
%}
DIGIT [0-9]
ALPHA [a-zA-Z_+./-]
SIGN \+|-
EXP e|E
INT {SIGN}?{DIGIT}+
FLOAT {SIGN}?(({DIGIT}+\.{DIGIT}*)|({DIGIT}*\.{DIGIT}+))({EXP}{SIGN}?{INT}+)?
LMARK #L
BLANK [ \t]
%x MARK TYPE
%%
{LMARK} {BEGIN(MARK);}
{INT} {yylval->val_int = strTo<long int>(yytext); RETTOK(INT);}
{FLOAT} {yylval->val_double = strTo<double>(yytext); RETTOK(FLOAT);}
({ALPHA}|{DIGIT})+ {strcpy(yylval->val_str,yytext); RETTOK(ID);}
<MARK>latan_begin {BEGIN(TYPE); RETTOK(OPEN);}
<MARK>latan_end {BEGIN(TYPE); RETTOK(CLOSE);}
<TYPE>mat {BEGIN(INITIAL); RETTOK(MAT);}
<TYPE>rs_sample {BEGIN(INITIAL); RETTOK(SAMPLE);}
<TYPE>rg_state {BEGIN(INITIAL); RETTOK(RG_STATE);}
<*>\r*\n {yylloc->last_column = 0;}
<*>[ \t]
<*>. {yylval->val_char = yytext[0]; RETTOK(ERR);}
%%
void AsciiFile::AsciiParserState::initScanner()
{
yylex_init(&scanner);
yyset_extra(this, scanner);
}
void AsciiFile::AsciiParserState::destroyScanner()
{
yylex_destroy(scanner);
}