de.flapdoodle.java2pandoc.line.matcher.RegexLineMatcher.java Source code

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Here is the source code for de.flapdoodle.java2pandoc.line.matcher.RegexLineMatcher.java

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/**
 * Copyright (C) 2013
 *   Michael Mosmann <michael@mosmann.de>
 *
 * with contributions from
 *    -
 *
 * 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 de.flapdoodle.java2pandoc.line.matcher;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.google.common.base.Optional;

public class RegexLineMatcher implements ILineMatcher {
    private Pattern _pattern;

    public RegexLineMatcher(String pattern) {
        _pattern = Pattern.compile(pattern);
    }

    @Override
    public Optional<LineMatch> match(String line) {
        Matcher matcher = _pattern.matcher(line);
        if (matcher.matches()) {
            return Optional.of(new LineMatch(matcher.end(1)));
        }
        return Optional.absent();
    }

}