8b06edbc3b
* src/neverparse/neverclaimscan.ll: Allow space between ! and (. * src/tgbatest/neverclaimread.test: Add space for testing.
101 lines
2.2 KiB
LLVM
101 lines
2.2 KiB
LLVM
/* Copyright (C) 2010, 2011 Laboratoire de Recherche et Développement de
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** l'Epita (LRDE).
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**
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** This file is part of Spot, a model checking library.
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**
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** Spot is free software; you can redistribute it and/or modify it
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** under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** Spot is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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** or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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** 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 Spot; see the file COPYING. If not, write to the Free
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** Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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** 02111-1307, USA.
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*/
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%option noyywrap
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%option prefix="neverclaimyy"
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%option outfile="lex.yy.c"
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%{
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#include <string>
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#include "neverparse/parsedecl.hh"
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#define YY_USER_ACTION \
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yylloc->columns(yyleng);
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#define YY_NEVER_INTERACTIVE 1
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typedef neverclaimyy::parser::token token;
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%}
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eol \n|\r|\n\r|\r\n
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%%
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%{
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yylloc->step();
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%}
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/* skip blanks */
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{eol} yylloc->lines(yyleng); yylloc->step();
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[ \t]+ yylloc->step();
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"/*".*"*/" yylloc->step();
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"never" return token::NEVER;
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"skip" return token::SKIP;
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"if" return token::IF;
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"fi" return token::FI;
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"->" return token::ARROW;
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"goto" return token::GOTO;
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"false"|"0" return token::FALSE;
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("!"[ \t]+)?"(".*")"|"true"|"1" {
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yylval->str = new std::string(yytext, yyleng);
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return token::FORMULA;
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}
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[a-zA-Z][a-zA-Z0-9_]* {
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yylval->str = new std::string(yytext, yyleng);
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return token::IDENT;
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}
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. return *yytext;
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%{
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/* Dummy use of yyunput to shut up a gcc warning. */
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(void) &yyunput;
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%}
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%%
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namespace spot
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{
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int
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neverclaimyyopen(const std::string &name)
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{
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if (name == "-")
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{
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yyin = stdin;
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}
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else
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{
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yyin = fopen(name.c_str(), "r");
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if (!yyin)
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return 1;
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}
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return 0;
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}
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void
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neverclaimyyclose()
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{
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fclose(yyin);
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}
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}
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