117 lines
4.0 KiB
Plaintext
117 lines
4.0 KiB
Plaintext
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO 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 2 of the License, or
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(at your option) any later version.
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SECONDO 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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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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*/
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%{
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/*
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1 The Scannerfile
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*/
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#include "RegExParser.y.h"
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extern int cregexlex_destroy();
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void lexDestroy(){
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yy_delete_buffer(YY_CURRENT_BUFFER);
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cregexlex_destroy();
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}
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%}
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%option prefix="cregex"
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%option noyywrap
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%x SET
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whitespace [ \n\r\t\a\b\f\t\v]
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stars "*"("*"|whitespace)*
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%%
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<INITIAL>{whitespace} { ; }
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<INITIAL>"\\\\" { cregexlval.numval = (int) '\\'; return CHAR; }
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<INITIAL>"\\(" { cregexlval.numval = (int)'('; return CHAR; }
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<INITIAL>"\\)" { cregexlval.numval = (int)')'; return CHAR;}
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<INITIAL>"\\|" { cregexlval.numval = (int)'|'; return CHAR;}
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<INITIAL>"\\*" { cregexlval.numval = (int)'*'; return CHAR;}
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<INITIAL>"\\." { cregexlval.numval = (int)'.'; return CHAR;}
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<INITIAL>"\\+" { cregexlval.numval = (int)'+'; return CHAR;}
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<INITIAL>"\\?" { cregexlval.numval = (int)'?'; return CHAR;}
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<INITIAL>"\\[" { cregexlval.numval = (int)'['; return CHAR;}
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<INITIAL>"\\n" { cregexlval.numval = (int)'\n'; return CHAR;}
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<INITIAL>"\\t" { cregexlval.numval = (int)'\t'; return CHAR;}
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<INITIAL>"\\r" { cregexlval.numval = (int)'\r'; return CHAR;}
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<INITIAL>"\\a" { cregexlval.numval = (int)'\a'; return CHAR;}
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<INITIAL>"\\b" { cregexlval.numval = (int)'\b'; return CHAR;}
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<INITIAL>"\\f" { cregexlval.numval = (int)'\f'; return CHAR;}
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<INITIAL>"\\v" { cregexlval.numval = (int)'\v'; return CHAR;}
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<INITIAL>"\\ " { cregexlval.numval = (int)' '; return CHAR;}
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<INITIAL>"(" { return OPEN; }
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<INITIAL>")" { return CLOSE; }
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<INITIAL>{stars} { return STARS; }
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<INITIAL>"|" { return OR; }
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<INITIAL>"+" { return PLUS; }
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<INITIAL>"." { return ANY; }
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<INITIAL>"?" { return OPTION; }
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<INITIAL>"[" { BEGIN(SET);
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return OPENSET;
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}
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<INITIAL>"[^" { BEGIN(SET);
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return OPENINVERSESET;
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}
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<INITIAL>. { cregexlval.numval = (int)(unsigned char)yytext[0];
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return CHAR;
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}
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<SET>"\\-" { cregexlval.numval = (int)'-'; return CHAR;}
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<SET>"-" { return TO; }
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<SET>"\\\\" { cregexlval.numval = (int)'\\'; return CHAR;}
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<SET>"\\]" { cregexlval.numval = (int)']'; return CHAR; }
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<SET>"]" { BEGIN(INITIAL);
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return CLOSESET;
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}
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<SET>"\\n" { cregexlval.numval = (int)'\n'; return CHAR;}
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<SET>"\\t" { cregexlval.numval = (int)'\t'; return CHAR;}
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<SET>"\\r" { cregexlval.numval = (int)'\r'; return CHAR;}
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<SET>"\\a" { cregexlval.numval = (int)'\a'; return CHAR;}
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<SET>"\\b" { cregexlval.numval = (int)'\b'; return CHAR;}
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<SET>"\\f" { cregexlval.numval = (int)'\f'; return CHAR;}
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<SET>"\\v" { cregexlval.numval = (int)'\v'; return CHAR;}
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<SET>. { cregexlval.numval = (int)(unsigned char)yytext[0];
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return CHAR;
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}
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%%
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