com.junichi11.netbeans.modules.editorconfig.editor.parser.ECParser.java Source code

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Here is the source code for com.junichi11.netbeans.modules.editorconfig.editor.parser.ECParser.java

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/*
 * The MIT License
 *
 * Copyright 2015 junichi11.
 *
 * 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 com.junichi11.netbeans.modules.editorconfig.editor.parser;

import java.util.ArrayList;
import java.util.List;
import javax.swing.event.ChangeListener;
import org.antlr.v4.runtime.ANTLRInputStream;
import org.antlr.v4.runtime.CommonTokenStream;
import org.antlr.v4.runtime.Lexer;
import org.antlr4.EditorConfigErrorListener;
import org.antlr4.EditorConfigLexer;
import org.antlr4.EditorConfigParser;
import org.antlr4.SyntaxError;
import org.netbeans.modules.parsing.api.Snapshot;
import org.netbeans.modules.parsing.api.Task;
import org.netbeans.modules.parsing.spi.ParseException;
import org.netbeans.modules.parsing.spi.Parser;
import org.netbeans.modules.parsing.spi.SourceModificationEvent;

/**
 *
 * @author junichi11
 */
public class ECParser extends Parser {

    private Snapshot snapshot;
    private EditorConfigParser parser;
    private List<SyntaxError> syntaxErrors;
    private ECParserResult result;

    @Override
    public void parse(Snapshot snapshot, Task task, SourceModificationEvent event) throws ParseException {
        this.snapshot = snapshot;
        String text = snapshot.getText().toString();
        ANTLRInputStream input = new ANTLRInputStream(text);
        Lexer lexer = new EditorConfigLexer(input);
        lexer.removeErrorListeners();

        CommonTokenStream tokens = new CommonTokenStream(lexer);
        parser = new EditorConfigParser(tokens);
        parser.removeErrorListeners();
        syntaxErrors = new ArrayList<>();
        EditorConfigErrorListener errorListener = new EditorConfigErrorListener(syntaxErrors);
        parser.addErrorListener(errorListener);
        EditorConfigParser.FileContext root = parser.file();
        result = new ECParserResult(snapshot, parser, root);
    }

    @Override
    public Result getResult(Task task) throws ParseException {
        return result;
    }

    @Override
    public void addChangeListener(ChangeListener listener) {
    }

    @Override
    public void removeChangeListener(ChangeListener listener) {
    }

}