Examples of java.util.regex.Matcher.replaceAll()

java.util.regex.Matcher.replaceAll()
Replaces every subsequence of the input sequence that matches the pattern with the given replacement string.
This method first resets this matcher. It then scans the input sequence looking for matches of the pattern. Characters that are not part of any match are appended directly to the result string; each match is replaced in the result by the replacement string. The replacement string may contain references to captured subsequences as in the {@link #appendReplacement appendReplacement} method.
Note that backslashes (\) and dollar signs ($) in the replacement string may cause the results to be different than if it were being treated as a literal replacement string. Dollar signs may be treated as references to captured subsequences as described above, and backslashes are used to escape literal characters in the replacement string.
Given the regular expression a*b, the input "aabfooaabfooabfoob", and the replacement string "-", an invocation of this method on a matcher for that expression would yield the string "-foo-foo-foo-".
Invoking this method changes this matcher's state. If the matcher is to be used in further matching operations then it should first be reset.
@param replacement The replacement string @return The string constructed by replacing each matching subsequenceby the replacement string, substituting captured subsequences as needed

  
  protected String regexReplace( String regex_pattern, String replacement, String s )
  {
    Pattern p = Pattern.compile( regex_pattern );
    Matcher m = p.matcher( s );
    return m.replaceAll( replacement );
  }
  
  protected String processTag( String s )
  {    
    // ending tags

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    VelocityHelper vh = VelocityHelper.getInstance();
    String mergedContent = vh.mergeContent(pagePath, ctx, null);
    // Remove any HTML stuff from page
    Matcher m = HTML_TAG_PATTERN.matcher(mergedContent);
    mergedContent = m.replaceAll(" ");
    // Remove all &nbsp
    m = HTML_SPACE_PATTERN.matcher(mergedContent);
    mergedContent = m.replaceAll(" ");
    // Finally set content
    contextHelpDocument.setContent(mergedContent);

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    // Remove any HTML stuff from page
    Matcher m = HTML_TAG_PATTERN.matcher(mergedContent);
    mergedContent = m.replaceAll(" ");
    // Remove all &nbsp
    m = HTML_SPACE_PATTERN.matcher(mergedContent);
    mergedContent = m.replaceAll(" ");
    // Finally set content
    contextHelpDocument.setContent(mergedContent);
    
    if (log.isDebug()) log.debug(contextHelpDocument.toString());
    return contextHelpDocument.getLuceneDocument();

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    // strip all other html-fragments, because not convertable that easy
    htmlText = FilterFactory.getHtmlTagsFilter().filter(htmlText);
    // Remove all &nbsp;
    Matcher tmp = HTML_SPACE_PATTERN.matcher(htmlText);
    htmlText = tmp.replaceAll(" ");
    htmlText = StringEscapeUtils.unescapeHtml(htmlText);


    return htmlText;
  }

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   */
  public static String htmlToText(final String sHTML, final int options){
    // first, remove all the comments
    
    Matcher m = PATTERN_HTML_COMMENT.matcher(sHTML);
    String s = m.replaceAll("");
    
    m = PATTERN_HTML_SCRIPT.matcher(s);
    s = m.replaceAll("");
    
    m = PATTERN_HTML_STYLE.matcher(s);

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    Matcher m = PATTERN_HTML_COMMENT.matcher(sHTML);
    String s = m.replaceAll("");
    
    m = PATTERN_HTML_SCRIPT.matcher(s);
    s = m.replaceAll("");
    
    m = PATTERN_HTML_STYLE.matcher(s);
    s = m.replaceAll("");


    m = PATTERN_HTML_HEAD.matcher(s);

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    m = PATTERN_HTML_SCRIPT.matcher(s);
    s = m.replaceAll("");
    
    m = PATTERN_HTML_STYLE.matcher(s);
    s = m.replaceAll("");


    m = PATTERN_HTML_HEAD.matcher(s);
    s = m.replaceAll("");


    if ( (options & HTML_OPTION_KEEP_SPACES) == 0){

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    m = PATTERN_HTML_STYLE.matcher(s);
    s = m.replaceAll("");


    m = PATTERN_HTML_HEAD.matcher(s);
    s = m.replaceAll("");


    if ( (options & HTML_OPTION_KEEP_SPACES) == 0){
      m = PATTERN_HTML_SPACES.matcher(s);
      s = m.replaceAll(" ");
    }

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    m = PATTERN_HTML_HEAD.matcher(s);
    s = m.replaceAll("");


    if ( (options & HTML_OPTION_KEEP_SPACES) == 0){
      m = PATTERN_HTML_SPACES.matcher(s);
      s = m.replaceAll(" ");
    }
    
    m = PATTERN_HTML_BR.matcher(s);
    s = m.replaceAll("\n");

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      m = PATTERN_HTML_SPACES.matcher(s);
      s = m.replaceAll(" ");
    }
    
    m = PATTERN_HTML_BR.matcher(s);
    s = m.replaceAll("\n");
    
    m = PATTERN_HTML_BULL.matcher(s);
    s = m.replaceAll("- ");
    
    m = PATTERN_HTML_TAG.matcher(s);

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