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737adb695d
understand recursive descent parser, we can easily handle more syntax variety, and we can more easily change the configuration items accepted. llvm-svn: 15732
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
//===- ConfigLexer.h - ConfigLexer Declarations -----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the types and data needed by ConfigLexer.l
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//
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//===------------------------------------------------------------------------===
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#ifndef LLVM_TOOLS_LLVMC_CONFIGLEXER_H
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#define LLVM_TOOLS_LLVMC_CONFIGLEXER_H
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#include <string>
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#include <istream>
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namespace llvm {
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struct ConfigLexerInfo
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{
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int64_t IntegerVal;
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std::string StringVal;
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};
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extern ConfigLexerInfo ConfigLexerData;
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extern unsigned ConfigLexerLine;
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class InputProvider {
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public:
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InputProvider(const std::string& nm) {
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name = nm;
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errCount = 0;
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}
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virtual ~InputProvider();
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virtual unsigned read(char *buf, unsigned max_size) = 0;
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virtual void error(const std::string& msg);
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virtual void checkErrors();
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private:
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std::string name;
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unsigned errCount;
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};
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extern InputProvider* ConfigLexerInput;
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enum ConfigLexerTokens {
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EOFTOK = 0, ///< Returned by Configlex when we hit end of file
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EOLTOK, ///< End of line
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ERRORTOK, ///< Error token
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OPTION, ///< A command line option
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SEPARATOR, ///< A configuration item separator
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EQUALS, ///< The equals sign, =
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TRUETOK, ///< A boolean true value (true/yes/on)
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FALSETOK, ///< A boolean false value (false/no/off)
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INTEGER, ///< An integer
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STRING, ///< A quoted string
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IN_SUBST, ///< The input substitution item @in@
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OUT_SUBST, ///< The output substitution item @out@
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LANG, ///< The item "lang" (and case variants)
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PREPROCESSOR, ///< The item "preprocessor" (and case variants)
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TRANSLATOR, ///< The item "translator" (and case variants)
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OPTIMIZER, ///< The item "optimizer" (and case variants)
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ASSEMBLER, ///< The item "assembler" (and case variants)
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LINKER, ///< The item "linker" (and case variants)
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NAME, ///< The item "name" (and case variants)
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NEEDED, ///< The item "needed" (and case variants)
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COMMAND, ///< The item "command" (and case variants)
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PREPROCESSES, ///< The item "preprocesses" (and case variants)
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GROKS_DASH_O, ///< The item "groks_dash_O" (and case variants)
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OPTIMIZES, ///< The item "optimizes" (and case variants)
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};
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}
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#endif
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