}
        return pattern.matcher(version).matches();
    }

    String getQueryHighlightBoundaryChars();

    default char[] getQueryHighlightBoundaryCharsAsArray() {
        final int[] values = getCrawlerDocumentCharsAsArray(QUERY_HIGHLIGHT_BOUNDARY_CHARS, getQueryHighlightBoundaryChars());
        final char[] chars = new char[values.length];

Shinsuke Sugaya <******@****.***> 1774681159 +0900

            final int numOfFragments = highlightInfo.getNumOfFragments();
            final int fragmentOffset = highlightInfo.getFragmentOffset();
            final char[] boundaryChars = fessConfig.getQueryHighlightBoundaryCharsAsArray();
            final int boundaryMaxScan = fessConfig.getQueryHighlightBoundaryMaxScanAsInteger();
            final String boundaryScannerType = fessConfig.getQueryHighlightBoundaryScanner();