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%{
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
/*
This file must be translated to C and modified to build everywhere.
Run flex like this:
flex --prefix=cmCommandArgument_yy --header-file=cmCommandArgumentLexer.h -ocmCommandArgumentLexer.cxx cmCommandArgumentLexer.in.l
Modify cmCommandArgumentLexer.cxx:
- add #include "cmStandardIncludes.h" to top of file
- put header block at top of file
- remove TABs
- remove use of the 'register' storage class specifier
- remove "yyscanner" argument from these methods:
yy_fatal_error, cmCommandArgument_yyalloc, cmCommandArgument_yyrealloc, cmCommandArgument_yyfree
- remove all YY_BREAK lines occurring right after return statements
- change while ( 1 ) to for(;;)
- add "return 0;" to end of cmCommandArgument_yylex
Modify cmCommandArgumentLexer.h:
- remove TABs
- remove the yy_init_globals function
- remove the block that includes unistd.h
- remove #line directives (avoids bogus warning on old Sun)
*/
#include "cmStandardLexer.h"
#include "cmCommandArgumentParserHelper.h"
/* Replace the lexer input function. */
#undef YY_INPUT
#define YY_INPUT(buf, result, max_size) \
{ result = yyextra->LexInput(buf, max_size); }
/* Include the set of tokens from the parser. */
#include "cmCommandArgumentParserTokens.h"
/*--------------------------------------------------------------------------*/
%}
%option reentrant
%option noyywrap
%option nounput
%pointer
%s ESCAPES
%s NOESCAPES
%%
\$ENV\{ {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2);
return cal_ENVCURLY;
}
\$[A-Za-z0-9/_.+-]+\{ {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2);
return cal_NCURLY;
}
@[A-Za-z0-9/_.+-]+@ {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2);
return cal_ATNAME;
}
"${" {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
yylvalp->str = yyextra->DCURLYVariable;
return cal_DCURLY;
}
"}" {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
yylvalp->str = yyextra->RCURLYVariable;
return cal_RCURLY;
}
"@" {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
yylvalp->str = yyextra->ATVariable;
return cal_AT;
}
[A-Za-z0-9/_.+-]+ {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
return cal_NAME;
}
<ESCAPES>\\. {
if ( !yyextra->HandleEscapeSymbol(yylvalp, *(yytext+1)) )
{
return cal_ERROR;
}
return cal_SYMBOL;
}
[^\${}\\@]+ {
//std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl;
yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
return cal_SYMBOL;
}
"$" {
//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
yylvalp->str = yyextra->DOLLARVariable;
return cal_DOLLAR;
}
"{" {
//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
yylvalp->str = yyextra->LCURLYVariable;
return cal_LCURLY;
}
<ESCAPES>"\\" {
//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
yylvalp->str = yyextra->BSLASHVariable;
return cal_BSLASH;
}
<NOESCAPES>"\\" {
//yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext));
yylvalp->str = yyextra->BSLASHVariable;
return cal_SYMBOL;
}
%%
/*--------------------------------------------------------------------------*/
void cmCommandArgument_SetupEscapes(yyscan_t yyscanner, bool noEscapes)
{
/* Hack into the internal flex-generated scanner to set the state. */
struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
if(noEscapes)
{
BEGIN(NOESCAPES);
}
else
{
BEGIN(ESCAPES);
}
}
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