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/**
 * Copyright 2017-2018 MIP Holdings
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package za.co.mip.ablduck.javadoc;

import java.util.List;

import org.antlr.v4.runtime.CharStreams;
import org.antlr.v4.runtime.CommonTokenStream;
import org.antlr.v4.runtime.tree.ParseTreeWalker;
import org.apache.tools.ant.Task;

import za.co.mip.ablduck.javadoc.JavadocLexer;
import za.co.mip.ablduck.javadoc.JavadocParser;

public class Javadoc {
    private DescriptiveErrorListener errorListener;

    public Javadoc(Task ablduck) {
        this.errorListener = new DescriptiveErrorListener(ablduck);
    }

    public List parseComment(String comment, String source) {

        JavadocLexer lexer = new JavadocLexer(CharStreams.fromString(comment, source));
        lexer.removeErrorListeners();
        lexer.addErrorListener(this.errorListener);

        CommonTokenStream tokens = new CommonTokenStream(lexer);

        JavadocParser parser = new JavadocParser(tokens);
        parser.removeErrorListeners();
        parser.addErrorListener(this.errorListener);

        JavadocParser.DocumentationContext documentation = parser.documentation();

        ParseTreeWalker walker = new ParseTreeWalker();
        JavadocListener listener = new JavadocListener();
        walker.walk(listener, documentation);

        return listener.getTags();
    }
}




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