}
        source = source.replaceAll(Pattern.quote("${fess.dictionary.path}"), dictionaryPath)//
                .replaceAll(Pattern.quote("${fess.index.codec}"), fessConfig.getIndexCodec())//
                .replaceAll(Pattern.quote("${fess.index.number_of_shards}"), numberOfShards)//
                .replaceAll(Pattern.quote("${fess.index.auto_expand_replicas}"), autoExpandReplicas);

\f   U+000C form feed
\n   U+000A line feed or newline
\r   U+000D carriage return
\t   U+0009 horizontal tab
\v   U+000B vertical tab
\\   U+005C backslash
\'   U+0027 single quote  (valid escape only within rune literals)
\"   U+0022 double quote  (valid escape only within string literals)
</pre>

<p>
An unrecognized character following a backslash in a rune literal is illegal.
</p>

<pre class="ebnf">

        final String p = path.trim();
        if (p.startsWith("#")) {
            return StringUtils.EMPTY;
        }

        if (p.startsWith(GsaConfigParser.CONTAINS)) {
            return ".*" + Pattern.quote(p.substring(GsaConfigParser.CONTAINS.length())) + ".*";
        }

        if (p.startsWith(GsaConfigParser.REGEXP)) {
            return p.substring(GsaConfigParser.REGEXP.length());
        }

    default boolean isTargetPluginVersion(final String version) {
        final Pattern pattern;
        if (StringUtil.isBlank(getPluginVersionFilter())) {
            pattern = Pattern.compile("^" + Pattern.quote(ComponentUtil.getSystemHelper().getProductVersion()) + ".*");
        } else {
            pattern = Pattern.compile(getPluginVersionFilter());
        }
        return pattern.matcher(version).matches();
    }