Jip J. Dekker
fad1b07018
git-subtree-dir: software/minizinc git-subtree-split: 4f10c82056ffcb1041d7ffef29d77a7eef92cf76
50 lines
1.1 KiB
Plaintext
50 lines
1.1 KiB
Plaintext
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Jip J. Dekker <jip.dekker@monash.edu>
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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%option noyywrap
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%option prefix="regex_yy"
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%{
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#include <cstdlib>
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#define YY_DECL int yylex()
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#include <minizinc/support/regex.hh>
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%}
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%%
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[ \t\n] { /* ignore white space */ }
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[0-9]+ { regex_yylval.iValue = std::atoi(regex_yytext); return R_INTEGER; }
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"|" { return R_UNION; }
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"+" { return R_PLUS; }
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"*" { return R_STAR; }
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"(" { return R_GROUP_OPEN; }
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")" { return R_GROUP_CLOSE; }
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"?" { return R_OPTIONAL; }
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"{" { return R_QUANT_OPEN; }
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"}" { return R_QUANT_CLOSE; }
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"," { return R_COMMA; }
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"." { return R_ANY; }
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"[" { return R_CLASS_OPEN; }
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"]" { return R_CLASS_CLOSE; }
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"-" { return R_CLASS_RANGE; }
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"^" { return R_CLASS_NEG; }
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. {
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/* Catch all */
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throw std::runtime_error("Illegal token in regular expression: '" + std::string(regex_yytext) + "'");
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}
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%%
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