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197 lines
4.3 KiB
197 lines
4.3 KiB
%{
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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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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 bison like this:
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bison --name-prefix=cmCommandArgument_yy --defines=cmCommandArgumentParserTokens.h -ocmCommandArgumentParser.cxx cmCommandArgumentParser.y
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*/
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <string.h>
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#define yyGetParser (cmCommandArgument_yyget_extra(yyscanner))
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/* Make sure malloc and free are available on QNX. */
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#ifdef __QNX__
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# include <malloc.h>
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#endif
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/* Make sure the parser uses standard memory allocation. The default
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generated parser malloc/free declarations do not work on all
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platforms. */
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#include <stdlib.h>
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#define YYMALLOC malloc
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#define YYFREE free
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/*-------------------------------------------------------------------------*/
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#include "cmCommandArgumentParserHelper.h" /* Interface to parser object. */
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#include "cmCommandArgumentLexer.h" /* Interface to lexer object. */
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/* Forward declare the lexer entry point. */
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YY_DECL;
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/* Helper function to forward error callback from parser. */
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static void cmCommandArgument_yyerror(yyscan_t yyscanner, const char* message);
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/* Configure the parser to support large input. */
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#define YYMAXDEPTH 100000
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#define YYINITDEPTH 10000
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/* Disable some warnings in the generated code. */
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#ifdef _MSC_VER
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# pragma warning (disable: 4102) /* Unused goto label. */
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# pragma warning (disable: 4065) /* Switch statement contains default but no
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case. */
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# pragma warning (disable: 4244) /* loss of precision */
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# pragma warning (disable: 4702) /* unreachable code */
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#endif
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#if defined(__GNUC__) && __GNUC__ >= 8
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# pragma GCC diagnostic ignored "-Wconversion"
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# pragma GCC diagnostic ignored "-Wfree-nonheap-object"
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#endif
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#if defined(__clang__) && defined(__has_warning)
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# if __has_warning("-Wunused-but-set-variable")
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# pragma clang diagnostic ignored "-Wunused-but-set-variable"
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# endif
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#endif
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%}
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/* Generate a reentrant parser object. */
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%define api.pure
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/* Configure the parser to use a lexer object. */
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%lex-param {yyscan_t yyscanner}
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%parse-param {yyscan_t yyscanner}
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%define parse.error verbose
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/*
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%union {
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char* string;
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}
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*/
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/*-------------------------------------------------------------------------*/
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/* Tokens */
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%token cal_ENVCURLY
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%token cal_NCURLY
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%token cal_DCURLY
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%token cal_DOLLAR "$"
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%token cal_LCURLY "{"
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%token cal_RCURLY "}"
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%token cal_NAME
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%token cal_BSLASH "\\"
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%token cal_SYMBOL
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%token cal_AT "@"
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%token cal_ERROR
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%token cal_ATNAME
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/*-------------------------------------------------------------------------*/
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/* grammar */
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%%
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Start:
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GoalWithOptionalBackSlash {
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$<str>$ = 0;
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yyGetParser->SetResult($<str>1);
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}
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GoalWithOptionalBackSlash:
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Goal {
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$<str>$ = $<str>1;
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}
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| Goal cal_BSLASH {
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$<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
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}
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Goal:
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{
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$<str>$ = 0;
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}
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| String Goal {
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$<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
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}
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String:
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OuterText {
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$<str>$ = $<str>1;
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}
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| Variable {
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$<str>$ = $<str>1;
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}
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OuterText:
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cal_NAME {
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$<str>$ = $<str>1;
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}
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| cal_AT {
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$<str>$ = $<str>1;
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}
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| cal_DOLLAR {
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$<str>$ = $<str>1;
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}
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| cal_LCURLY {
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$<str>$ = $<str>1;
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}
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| cal_RCURLY {
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$<str>$ = $<str>1;
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}
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| cal_SYMBOL {
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$<str>$ = $<str>1;
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}
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Variable:
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cal_ENVCURLY EnvVarName cal_RCURLY {
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$<str>$ = yyGetParser->ExpandSpecialVariable($<str>1, $<str>2);
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}
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| cal_NCURLY MultipleIds cal_RCURLY {
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$<str>$ = yyGetParser->ExpandSpecialVariable($<str>1, $<str>2);
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}
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| cal_DCURLY MultipleIds cal_RCURLY {
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$<str>$ = yyGetParser->ExpandVariable($<str>2);
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}
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| cal_ATNAME {
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$<str>$ = yyGetParser->ExpandVariableForAt($<str>1);
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}
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EnvVarName:
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MultipleIds {
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$<str>$ = $<str>1;
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}
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| cal_SYMBOL EnvVarName {
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$<str>$ = $<str>1;
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}
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MultipleIds:
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{
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$<str>$ = 0;
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}
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| ID MultipleIds {
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$<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
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}
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ID:
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cal_NAME {
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$<str>$ = $<str>1;
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}
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| Variable {
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$<str>$ = $<str>1;
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}
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;
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%%
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/* End of grammar */
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/*--------------------------------------------------------------------------*/
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void cmCommandArgument_yyerror(yyscan_t yyscanner, const char* message)
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{
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yyGetParser->Error(message);
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}
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