CMake/Source/cmCommandArgumentParser.y

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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 bison like this:
bison --yacc --name-prefix=cmCommandArgument_yy --defines=cmCommandArgumentParserTokens.h -ocmCommandArgumentParser.cxx cmCommandArgumentParser.y
Modify cmCommandArgumentParser.cxx:
- remove TABs
- remove use of the 'register' storage class specifier
- put header block at top of file
*/
#include "cmStandardIncludes.h"
/* Configure the parser to use a lexer object. */
#define YYPARSE_PARAM yyscanner
#define YYLEX_PARAM yyscanner
#define YYERROR_VERBOSE 1
#define cmCommandArgument_yyerror(x) \
cmCommandArgumentError(yyscanner, x)
#define yyGetParser (cmCommandArgument_yyget_extra(yyscanner))
/* Make sure malloc and free are available on QNX. */
#ifdef __QNX__
# include <malloc.h>
#endif
/* Make sure the parser uses standard memory allocation. The default
generated parser malloc/free declarations do not work on all
platforms. */
#include <stdlib.h>
#define YYMALLOC malloc
#define YYFREE free
/*-------------------------------------------------------------------------*/
#include "cmCommandArgumentParserHelper.h" /* Interface to parser object. */
#include "cmCommandArgumentLexer.h" /* Interface to lexer object. */
#include "cmCommandArgumentParserTokens.h" /* Need YYSTYPE for YY_DECL. */
/* Forward declare the lexer entry point. */
YY_DECL;
/* Internal utility functions. */
static void cmCommandArgumentError(yyscan_t yyscanner, const char* message);
#define YYDEBUG 1
/* Configure the parser to support large input. */
#define YYMAXDEPTH 100000
#define YYINITDEPTH 10000
/* Disable some warnings in the generated code. */
#ifdef _MSC_VER
# pragma warning (disable: 4102) /* Unused goto label. */
# pragma warning (disable: 4065) /* Switch statement contains default but no
case. */
# pragma warning (disable: 4244) /* loss of precision */
# pragma warning (disable: 4702) /* unreachable code */
#endif
%}
/* Generate a reentrant parser object. */
%pure_parser
/*
%union {
char* string;
}
*/
/*-------------------------------------------------------------------------*/
/* Tokens */
%token cal_ENVCURLY
%token cal_NCURLY
%token cal_DCURLY
%token cal_DOLLAR "$"
%token cal_LCURLY "{"
%token cal_RCURLY "}"
%token cal_NAME
%token cal_BSLASH "\\"
%token cal_SYMBOL
%token cal_AT "@"
%token cal_ERROR
%token cal_ATNAME
/*-------------------------------------------------------------------------*/
/* grammar */
%%
Start:
GoalWithOptionalBackSlash
{
$<str>$ = 0;
yyGetParser->SetResult($<str>1);
}
GoalWithOptionalBackSlash:
Goal
{
$<str>$ = $<str>1;
}
|
Goal cal_BSLASH
{
$<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
}
Goal:
{
$<str>$ = 0;
}
|
String Goal
{
$<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
}
String:
OuterText
{
$<str>$ = $<str>1;
}
|
Variable
{
$<str>$ = $<str>1;
}
OuterText:
cal_NAME
{
$<str>$ = $<str>1;
}
|
cal_AT
{
$<str>$ = $<str>1;
}
|
cal_DOLLAR
{
$<str>$ = $<str>1;
}
|
cal_LCURLY
{
$<str>$ = $<str>1;
}
|
cal_RCURLY
{
$<str>$ = $<str>1;
}
|
cal_SYMBOL
{
$<str>$ = $<str>1;
}
Variable:
cal_ENVCURLY EnvVarName cal_RCURLY
{
$<str>$ = yyGetParser->ExpandSpecialVariable($<str>1,$<str>2);
//std::cerr << __LINE__ << " here: [" << $<str>1 << "] [" << $<str>2 << "] [" << $<str>3 << "]" << std::endl;
}
|
cal_NCURLY MultipleIds cal_RCURLY
{
$<str>$ = yyGetParser->ExpandSpecialVariable($<str>1,$<str>2);
//std::cerr << __LINE__ << " here: [" << $<str>1 << "] [" << $<str>2 << "] [" << $<str>3 << "]" << std::endl;
}
|
cal_DCURLY MultipleIds cal_RCURLY
{
$<str>$ = yyGetParser->ExpandVariable($<str>2);
//std::cerr << __LINE__ << " here: [" << $<str>1 << "] [" << $<str>2 << "] [" << $<str>3 << "]" << std::endl;
}
|
cal_ATNAME
{
$<str>$ = yyGetParser->ExpandVariableForAt($<str>1);
}
EnvVarName:
MultipleIds
{
$<str>$ = $<str>1;
}
|
cal_SYMBOL EnvVarName
{
$<str>$ = $<str>1;
}
MultipleIds:
{
$<str>$ = 0;
}
|
ID MultipleIds
{
$<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
}
ID:
cal_NAME
{
$<str>$ = $<str>1;
}
|
Variable
{
$<str>$ = $<str>1;
}
%%
/* End of grammar */
/*--------------------------------------------------------------------------*/
void cmCommandArgumentError(yyscan_t yyscanner, const char* message)
{
yyGetParser->Error(message);
}