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2a54ebbf29
Macro YY_FATAL_ERROR() is defined in ExprIntrp.lex in order to have exception instead of program exit in case of scanner error. Fixed-length string buffers are replaced by TCollection_AsciiString to avoid buffer overflow. Some code refactoring: declarations of functions moved to header file, unused global declarations and variables removed, compiler warnings fixed or disabled, obsolete EDL file removed. Test case for issue CR24897 Correction of MSVC compiler warning when scanner is generated using Flex 2.5.35 on Linux
101 lines
2.7 KiB
Plaintext
101 lines
2.7 KiB
Plaintext
/*
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Copyright (c) 1997-1999 Matra Datavision
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Copyright (c) 1999-2014 OPEN CASCADE SAS
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This file is part of Open CASCADE Technology software library.
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This library is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License version 2.1 as published
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by the Free Software Foundation, with special exception defined in the file
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OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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distribution for complete text of the license and disclaimer of any warranty.
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Alternatively, this file may be used under the terms of Open CASCADE
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commercial license or contractual agreement.
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*/
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%option yywrap
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%{
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#include <ExprIntrp.tab.h>
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#include <ExprIntrp_yaccintrf.hxx>
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#define YY_SKIP_YYWRAP
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static YY_BUFFER_STATE ExprIntrp_bufstring;
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void ExprIntrp_start_string(const char* str)
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{
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// depending on configuration and generator, yyconst may be defined as const or empty
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ExprIntrp_bufstring = ExprIntrp_scan_string((yyconst char*)str);
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}
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void ExprIntrp_stop_string()
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{
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ExprIntrp_delete_buffer(ExprIntrp_bufstring);
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ExprIntrp_bufstring = (YY_BUFFER_STATE) 0;
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}
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static int yywrap()
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{
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return 1;
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}
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// provide safe error handler (exception instead of exit())
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#define YY_FATAL_ERROR(msg) ExprIntrperror(msg)
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#ifdef _MSC_VER
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// add includes for flex 2.91 (Linux version)
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#include <stdlib.h>
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#include <io.h>
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// Avoid includion of unistd.h if parser is generated on Linux (flex 2.5.35)
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#define YY_NO_UNISTD_H
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// disable MSVC warnings in flex 2.89 and 2.5.35 code
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// Note that Intel compiler also defines _MSC_VER but has different warning ids
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#if defined(__INTEL_COMPILER)
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#pragma warning(disable:177 1786 1736)
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#else
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#pragma warning(disable:4131 4244 4273 4127 4267)
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#endif
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#endif
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#ifdef __GNUC__
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// add includes for flex 2.91 (Linux version)
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#include <unistd.h>
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// disable GCC warnings in flex 2.91 code
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#pragma GCC diagnostic ignored "-Wunused-function"
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#endif
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%}
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%%
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" " {;}
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"+" {return(SUMOP) ;}
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"-" {return(MINUSOP) ;}
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"/" {return(DIVIDEOP) ;}
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"^" {return(EXPOP) ;}
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"**" {return(EXPOP) ;}
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"*" {return(MULTOP) ;}
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"(" {return(PARENTHESIS);}
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"[" {return(BRACKET);}
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")" {return(ENDPARENTHESIS);}
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"]" {return(ENDBRACKET);}
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"," {return(COMMA);}
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"@" {return(DIFFERENTIAL);}
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"<-" {return(ASSIGNOP);}
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"=" {return(EQUALOP);}
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"Deassign" {return(DEASSIGNKEY);}
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"Deriv" {return(DERIVKEY);}
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"Const" {return(CONSTKEY);}
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"Sum" {return(SUMKEY);}
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"Prod" {return(PRODKEY);}
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[0-9.]+e[+|-]?[0-9]+ {ExprIntrp_SetResult(); return(VALUE);}
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[0-9.]+ {ExprIntrp_SetResult(); return(VALUE);}
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[a-zA-Z][a-zA-Z0-9_]* {ExprIntrp_SetResult(); return(IDENTIFIER);}
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";" {return(RELSEPARATOR);}
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"'"+ {ExprIntrp_SetDegree();return(DERIVATE);}
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