Java Regex String Replace HTML removeTags(String input, List knownTagList)

Description

remove Tags

License

Apache License

Declaration

private static String removeTags(String input, List<String> knownTagList) 

Method Source Code

//package com.java2s;
/**//  w ww. j a v  a  2 s  .co m
 * 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.
 */

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

import static java.util.regex.Pattern.*;

public class Main {
    private static String removeTags(String input, List<String> knownTagList) {
        Pattern tag = compile("</?([^\\s>]*)\\s*[^>]*>", CASE_INSENSITIVE);
        Matcher matches = tag.matcher(input);
        while (matches.find()) {
            if (!knownTagList.contains(matches.group(1))) {
                input = input.replaceAll(quote(matches.group()), "");
            }
        }
        return input;
    }

    private static String removeTags(String input, String startTag, String endTag) {
        while (input.contains(startTag)) {
            int start = input.indexOf(startTag);
            int end = input.substring(start + startTag.length()).indexOf(endTag);

            if (end == -1)
                input = input.substring(0, start);
            else
                input = input.substring(0, start)
                        + input.substring(start + startTag.length() + end + endTag.length());
        }

        return input;
    }
}

Related

1. removeAllTags(String htmlText)
2. removeAllTags(String input)
3. removeTag(String tagname, String xmlstring)
4. removeTag(String text)
5. removeTags(String html)
6. removeTags(String string)
7. replaceHtml(String html)
8. replaceHtml(String html)
9. replaceHtmlEntities(final String text)