bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
/* 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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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <memory>
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#include <string>
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#include <vector>
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class cmMakefile;
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class cmCommandArgumentParserHelper
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{
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public:
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struct ParserType
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{
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const char* str;
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};
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cmCommandArgumentParserHelper();
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~cmCommandArgumentParserHelper();
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cmCommandArgumentParserHelper(cmCommandArgumentParserHelper const&) = delete;
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cmCommandArgumentParserHelper& operator=(
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cmCommandArgumentParserHelper const&) = delete;
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int ParseString(const char* str, int verb);
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// For the lexer:
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void AllocateParserType(cmCommandArgumentParserHelper::ParserType* pt,
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const char* str, int len = 0);
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bool HandleEscapeSymbol(cmCommandArgumentParserHelper::ParserType* pt,
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char symbol);
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int LexInput(char* buf, int maxlen);
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void Error(const char* str);
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// For yacc
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const char* CombineUnions(const char* in1, const char* in2);
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const char* ExpandSpecialVariable(const char* key, const char* var);
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const char* ExpandVariable(const char* var);
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const char* ExpandVariableForAt(const char* var);
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void SetResult(const char* value);
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void SetMakefile(const cmMakefile* mf);
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std::string& GetResult() { return this->Result; }
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void SetLineFile(long line, const char* file);
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void SetEscapeQuotes(bool b) { this->EscapeQuotes = b; }
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void SetNoEscapeMode(bool b) { this->NoEscapeMode = b; }
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void SetReplaceAtSyntax(bool b) { this->ReplaceAtSyntax = b; }
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void SetRemoveEmpty(bool b) { this->RemoveEmpty = b; }
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const char* GetError() { return this->ErrorString.c_str(); }
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private:
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std::string::size_type InputBufferPos;
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std::string InputBuffer;
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std::vector<char> OutputBuffer;
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void Print(const char* place, const char* str);
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void SafePrintMissing(const char* str, int line, int cnt);
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const char* AddString(const std::string& str);
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void CleanupParser();
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void SetError(std::string const& msg);
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std::vector<std::unique_ptr<char[]>> Variables;
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const cmMakefile* Makefile;
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std::string Result;
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std::string ErrorString;
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const char* FileName;
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long FileLine;
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int CurrentLine;
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int Verbose;
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bool EscapeQuotes;
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bool NoEscapeMode;
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bool ReplaceAtSyntax;
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bool RemoveEmpty;
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};
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#define YYSTYPE cmCommandArgumentParserHelper::ParserType
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#define YYSTYPE_IS_DECLARED
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#define YY_EXTRA_TYPE cmCommandArgumentParserHelper*
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#define YY_DECL \
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int cmCommandArgument_yylex(YYSTYPE* yylvalp, yyscan_t yyscanner)
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