/*
* Copyright (c) 2013 Patrick Scheibe
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package de.halirutan.mathematica.parsing.prattparser.parselets;
import com.intellij.lang.PsiBuilder;
import com.intellij.lang.PsiBuilder.Marker;
import de.halirutan.mathematica.parsing.MathematicaElementTypes;
import de.halirutan.mathematica.parsing.ParserBundle;
import de.halirutan.mathematica.parsing.prattparser.CriticalParserError;
import de.halirutan.mathematica.parsing.prattparser.MathematicaParser;
import de.halirutan.mathematica.parsing.prattparser.MathematicaParser.Result;
/**
* Parsing a string.
*
* @author patrick (3/27/13)
*/
public class StringParselet implements PrefixParselet {
private final int myPrecedence;
public StringParselet(int precedence) {
myPrecedence = precedence;
}
/**
* Tries to parse a string consisting of beginning ", string content and final ".
*
* @param parser
* The main parser object.
* @return Information about the success of the parsing.
*/
@Override
public Result parse(MathematicaParser parser) throws CriticalParserError {
Marker stringMark = parser.mark();
boolean parsedQ = true;
parser.advanceLexer();
while (parser.matchesToken(MathematicaElementTypes.STRING_LITERAL)) {
parser.advanceLexer();
}
if (parser.matchesToken(MathematicaElementTypes.STRING_LITERAL_END)) {
parser.advanceLexer();
} else {
parser.error(ParserBundle.message("General.expected.character", "\""));
parsedQ = false;
}
stringMark.done(MathematicaElementTypes.STRING_LITERAL_EXPRESSION);
return MathematicaParser.result(stringMark, MathematicaElementTypes.STRING_LITERAL_EXPRESSION, parsedQ);
}
public int getPrecedence() {
return myPrecedence;
}
}