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			97 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			97 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| #include "scriptparser.hpp"
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| 
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| #include "errorhandler.hpp"
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| #include "scanner.hpp"
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| #include "skipparser.hpp"
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| 
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| namespace Compiler
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| {
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|     ScriptParser::ScriptParser(ErrorHandler& errorHandler, const Context& context, Locals& locals, bool end)
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|         : Parser(errorHandler, context)
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|         , mOutput(locals)
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|         , mLineParser(errorHandler, context, locals, mOutput.getLiterals(), mOutput.getCode())
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|         , mControlParser(errorHandler, context, locals, mOutput.getLiterals())
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|         , mEnd(end)
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|     {
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|     }
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| 
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|     void ScriptParser::getCode(std::vector<Interpreter::Type_Code>& code) const
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|     {
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|         mOutput.getCode(code);
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|     }
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| 
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|     bool ScriptParser::parseName(const std::string& name, const TokenLoc& loc, Scanner& scanner)
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|     {
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|         mLineParser.reset();
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|         if (mLineParser.parseName(name, loc, scanner))
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|             scanner.scan(mLineParser);
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| 
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|         return true;
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|     }
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| 
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|     bool ScriptParser::parseKeyword(int keyword, const TokenLoc& loc, Scanner& scanner)
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|     {
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|         if (keyword == Scanner::K_while || keyword == Scanner::K_if || keyword == Scanner::K_elseif)
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|         {
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|             mControlParser.reset();
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|             if (mControlParser.parseKeyword(keyword, loc, scanner))
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|                 scanner.scan(mControlParser);
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| 
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|             mControlParser.appendCode(mOutput.getCode());
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| 
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|             return true;
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|         }
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| 
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|         /// \todo add an option to disable this nonsense
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|         if (keyword == Scanner::K_endif)
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|         {
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|             // surplus endif
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|             getErrorHandler().warning("endif without matching if/elseif", loc);
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| 
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|             SkipParser skip(getErrorHandler(), getContext());
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|             scanner.scan(skip);
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|             return true;
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|         }
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| 
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|         if (keyword == Scanner::K_end && mEnd)
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|         {
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|             return false;
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|         }
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| 
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|         mLineParser.reset();
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|         if (mLineParser.parseKeyword(keyword, loc, scanner))
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|             scanner.scan(mLineParser);
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| 
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|         return true;
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|     }
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| 
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|     bool ScriptParser::parseSpecial(int code, const TokenLoc& loc, Scanner& scanner)
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|     {
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|         if (code == Scanner::S_newline) // empty line
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|             return true;
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| 
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|         if (code == Scanner::S_open) /// \todo Option to switch this off
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|         {
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|             scanner.putbackSpecial(code, loc);
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|             return parseKeyword(Scanner::K_if, loc, scanner);
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|         }
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| 
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|         mLineParser.reset();
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|         if (mLineParser.parseSpecial(code, loc, scanner))
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|             scanner.scan(mLineParser);
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| 
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|         return true;
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|     }
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| 
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|     void ScriptParser::parseEOF(Scanner& scanner)
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|     {
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|         if (mEnd)
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|             Parser::parseEOF(scanner);
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|     }
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| 
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|     void ScriptParser::reset()
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|     {
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|         mLineParser.reset();
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|         mOutput.clear();
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|     }
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| }
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