com.sparrow.markdown.parser.impl.HorizontalLineParser Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 com.sparrow.markdown.parser.impl;

import com.sparrow.markdown.mark.MARK;
import com.sparrow.markdown.mark.MarkContext;
import com.sparrow.markdown.mark.MarkEntity;

public class HorizontalLineParser extends AbstractWithEndTagParser {

    @Override
    public MarkEntity validate(MarkContext markContext) {
        String title = markContext.readLine(markContext.getCurrentPointer() + 1);
        String line = markContext.readLine(markContext.getCurrentPointer() + title.length(), 2);
        if (line.equals(this.mark().getEnd())) {
            MarkEntity markEntity = MarkEntity.createCurrentMark(this.mark(), markContext.getCurrentPointer() + title.length());
            markEntity.setTitle(title);
            return markEntity;
        }
        return null;
    }

    @Override
    public void parse(MarkContext markContext) {
        String title = markContext.getContent().substring(markContext.getCurrentPointer() + 1, markContext.getCurrentMark().getEnd());
        markContext.append(String.format(this.mark().getFormat(), title));
        markContext.setPointer(markContext.getCurrentMark().getEnd() + this.mark().getEnd().length());
    }

    @Override
    public MARK mark() {
        return MARK.HORIZONTAL_LINE;
    }
}