157 lines
4.2 KiB
Plaintext
157 lines
4.2 KiB
Plaintext
%{
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/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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/*
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This file must be translated to C and modified to build everywhere.
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Run flex like this:
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flex --prefix=cmCommandArgument_yy --header-file=cmCommandArgumentLexer.h -ocmCommandArgumentLexer.cxx cmCommandArgumentLexer.in.l
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Modify cmCommandArgumentLexer.cxx:
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- remove TABs
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- remove "yyscanner" argument from these methods:
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yy_fatal_error, cmCommandArgument_yyalloc, cmCommandArgument_yyrealloc, cmCommandArgument_yyfree
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- remove all YY_BREAK lines occurring right after return statements
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- change while ( 1 ) to for(;;)
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Modify cmCommandArgumentLexer.h:
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- remove TABs
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- remove the yy_init_globals function
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- remove the block that includes unistd.h
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- remove #line directives (avoids bogus warning on old Sun)
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*/
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#include "cmStandardLexer.h"
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#include "cmCommandArgumentParserHelper.h"
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/* Replace the lexer input function. */
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#undef YY_INPUT
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#define YY_INPUT(buf, result, max_size) \
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{ result = yyextra->LexInput(buf, max_size); }
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/* Include the set of tokens from the parser. */
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#include "cmCommandArgumentParserTokens.h"
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/*--------------------------------------------------------------------------*/
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%}
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%option reentrant
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%option noyywrap
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%pointer
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%s ESCAPES
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%s NOESCAPES
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%%
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\$[A-Za-z0-9/_.+-]+\{ {
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//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
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yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2);
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return cal_NCURLY;
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}
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@[A-Za-z0-9/_.+-]+@ {
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//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
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yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2);
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return cal_ATNAME;
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}
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"${" {
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//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
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//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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yylvalp->str = yyextra->DCURLYVariable;
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return cal_DCURLY;
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}
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"}" {
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//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
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//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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yylvalp->str = yyextra->RCURLYVariable;
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return cal_RCURLY;
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}
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"@" {
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//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
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//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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yylvalp->str = yyextra->ATVariable;
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return cal_AT;
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}
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[A-Za-z0-9/_.+-]+ {
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//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
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yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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return cal_NAME;
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}
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<ESCAPES>\\. {
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if ( !yyextra->HandleEscapeSymbol(yylvalp, *(yytext+1)) )
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{
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return cal_ERROR;
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}
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return cal_SYMBOL;
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}
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[^\${}\\@]+ {
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//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
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yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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return cal_SYMBOL;
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}
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"$" {
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//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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yylvalp->str = yyextra->DOLLARVariable;
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return cal_DOLLAR;
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}
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"{" {
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//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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yylvalp->str = yyextra->LCURLYVariable;
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return cal_LCURLY;
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}
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<ESCAPES>"\\" {
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//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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yylvalp->str = yyextra->BSLASHVariable;
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return cal_BSLASH;
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}
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<NOESCAPES>"\\" {
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//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
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yylvalp->str = yyextra->BSLASHVariable;
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return cal_SYMBOL;
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}
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%%
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/*--------------------------------------------------------------------------*/
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void cmCommandArgument_SetupEscapes(yyscan_t yyscanner, bool noEscapes)
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{
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/* Hack into the internal flex-generated scanner to set the state. */
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struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
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if(noEscapes)
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{
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BEGIN(NOESCAPES);
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}
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else
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{
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BEGIN(ESCAPES);
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}
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}
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