/*
* 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 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;
/**
* Parselet for MessageName's like symbol::usage or Sin::tag. There are some specialties about this because the left
* operand is required to be a symbol. The right operand can be a symbol or a string.
*
* @author patrick (3/27/13)
*/
public class MessageNameParselet implements InfixParselet {
private final int myPrecedence;
public MessageNameParselet(int precedence) {
this.myPrecedence = precedence;
}
@Override
public MathematicaParser.Result parse(MathematicaParser parser, MathematicaParser.Result left) throws CriticalParserError {
PsiBuilder.Marker messageNameMarker = left.getMark().precede();
parser.advanceLexer();
MathematicaParser.Result result = parser.parseExpression(myPrecedence);
if (result.isParsed()) {
// Check whether we have a symbol or a string in usage message
if ((!result.getToken().equals(MathematicaElementTypes.SYMBOL_EXPRESSION)) &&
(!result.getToken().equals(MathematicaElementTypes.STRING_LITERAL_EXPRESSION))) {
PsiBuilder.Marker errorMark = result.getMark().precede();
errorMark.error(ParserBundle.message("MessageName.no.symbol.or.string"));
} else if (result.getToken().equals(MathematicaElementTypes.SYMBOL_EXPRESSION)) {
final PsiBuilder.Marker mark = result.getMark();
final PsiBuilder.Marker precede = mark.precede();
precede.done(MathematicaElementTypes.STRINGIFIED_SYMBOL_EXPRESSION);
mark.drop();
}
// Check whether we have the form symbol::name::language
if (parser.matchesToken(MathematicaElementTypes.DOUBLE_COLON)) {
parser.advanceLexer();
result = parser.parseExpression(myPrecedence);
if (result.isParsed() && ((!result.getToken().equals(MathematicaElementTypes.SYMBOL_EXPRESSION)) &&
(!result.getToken().equals(MathematicaElementTypes.STRING_LITERAL_EXPRESSION)))) {
PsiBuilder.Marker errMark = result.getMark().precede();
errMark.error(ParserBundle.message("MessageName.no.symbol.or.string"));
} else if (result.isValid() && result.getToken().equals(MathematicaElementTypes.SYMBOL_EXPRESSION)) {
final PsiBuilder.Marker mark = result.getMark();
final PsiBuilder.Marker precede = mark.precede();
precede.done(MathematicaElementTypes.STRINGIFIED_SYMBOL_EXPRESSION);
mark.drop();
}
}
} else {
parser.error(ParserBundle.message("MessageName.arg"));
}
messageNameMarker.done(MathematicaElementTypes.MESSAGE_NAME_EXPRESSION);
return MathematicaParser.result(messageNameMarker, MathematicaElementTypes.MESSAGE_NAME_EXPRESSION, result.isParsed());
}
@Override
public int getMyPrecedence() {
return myPrecedence;
}
}