142 lines
3.1 KiB
C++
142 lines
3.1 KiB
C++
#include "cmSystemTools.h"
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class CompileCommandParser {
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public:
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class CommandType: public std::map<std::string, std::string>
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{
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public:
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std::string const& at(std::string const& k) const
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{
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const_iterator i = this->find(k);
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if(i != this->end()) { return i->second; }
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static std::string emptyString;
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return emptyString;
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}
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};
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typedef std::vector<CommandType> TranslationUnitsType;
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CompileCommandParser(std::ifstream *input)
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{
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this->Input = input;
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}
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void Parse()
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{
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NextNonWhitespace();
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ParseTranslationUnits();
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}
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const TranslationUnitsType& GetTranslationUnits()
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{
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return this->TranslationUnits;
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}
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private:
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void ParseTranslationUnits()
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{
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this->TranslationUnits = TranslationUnitsType();
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ExpectOrDie('[', "at start of compile command file\n");
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do
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{
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ParseTranslationUnit();
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this->TranslationUnits.push_back(this->Command);
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} while(Expect(','));
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ExpectOrDie(']', "at end of array");
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}
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void ParseTranslationUnit()
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{
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this->Command = CommandType();
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if(!Expect('{')) return;
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if(Expect('}')) return;
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do
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{
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ParseString();
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std::string name = this->String;
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ExpectOrDie(':', "between name and value");
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ParseString();
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std::string value = this->String;
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this->Command[name] = value;
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} while(Expect(','));
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ExpectOrDie('}', "at end of object");
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}
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void ParseString()
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{
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this->String = "";
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if(!Expect('"')) return;
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while (!Expect('"'))
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{
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Expect('\\');
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this->String.append(1,C);
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Next();
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}
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}
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bool Expect(char c)
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{
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if(this->C == c)
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{
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NextNonWhitespace();
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return true;
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}
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return false;
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}
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void ExpectOrDie(char c, const std::string & message)
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{
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if (!Expect(c))
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ErrorExit(std::string("'") + c + "' expected " + message + ".");
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}
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void NextNonWhitespace()
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{
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do { Next(); } while (IsWhitespace());
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}
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void Next()
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{
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this->C = char(Input->get());
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if (this->Input->bad()) ErrorExit("Unexpected end of file.");
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}
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void ErrorExit(const std::string &message) {
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std::cout << "ERROR: " << message;
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exit(1);
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}
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bool IsWhitespace()
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{
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return (this->C == ' ' || this->C == '\t' ||
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this->C == '\n' || this->C == '\r');
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}
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char C;
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TranslationUnitsType TranslationUnits;
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CommandType Command;
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std::string String;
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std::ifstream *Input;
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};
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int main ()
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{
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std::ifstream file("compile_commands.json");
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CompileCommandParser parser(&file);
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parser.Parse();
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for(CompileCommandParser::TranslationUnitsType::const_iterator
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it = parser.GetTranslationUnits().begin(),
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end = parser.GetTranslationUnits().end(); it != end; ++it)
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{
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std::vector<std::string> command;
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cmSystemTools::ParseUnixCommandLine(it->at("command").c_str(), command);
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if (!cmSystemTools::RunSingleCommand(
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command, 0, 0, 0, it->at("directory").c_str()))
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{
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std::cout << "ERROR: Failed to run command \""
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<< command[0] << "\"" << std::endl;
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exit(1);
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}
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}
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return 0;
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}
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