assertEquals("1", "trim", StringUtil.ltrim("zzzytrim", "xyz"));
        assertEquals("2", "", StringUtil.ltrim("xyz", "xyz"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testRtrim() throws Exception {
        assertEquals("trim", StringUtil.rtrim("trimxxxx", "x"));
        assertEquals("", StringUtil.rtrim("xyz", "xyz"));

                        inputs[i] = unescape(inputStrings.get(i)).trim();
                    }

                    final List<String> outputStrings = split(sides.get(1), ",");
                    outputs = new String[outputStrings.size()];
                    for (int i = 0; i < outputs.length; i++) {
                        outputs[i] = unescape(outputStrings.get(i)).trim();
                    }

                    fessConfig.getIndexFieldVersion()));
        }
        split(fessConfig.getQueryAdditionalAnalyzedFields(), ",")
                .of(stream -> stream.map(String::trim).filter(StringUtil::isNotBlank).forEach(s -> notAnalyzedFieldSet.remove(s)));
        split(fessConfig.getQueryAdditionalDefaultFields(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).map(s -> {

            }
        }
        configProps.remove(INCLUDES_PROPERTY);
    }

    private static void trimValues(MavenProperties configProps) {
        configProps.replaceAll((k, v) -> v.trim());
    }

    private static String nextLocation(StringTokenizer st) {
        boolean optional = false;
        String retVal = null;

        if (st.countTokens() > 0) {

        String line;
        BufferedReader br = new BufferedReader(r);

        while ( ( line = br.readLine() ) != null ) {
            line = line.toUpperCase().trim();
            if ( line.length() == 0 ) {
                continue;
            }
            else if ( line.charAt(0) == '#' ) {
                if ( line.startsWith("#INCLUDE ") ) {

        }
        return buf.toString();
    }

    protected String normalizeUrl(final String u) {
        if (u == null) {
            return null;
        }

        // trim
        String url = u.trim();

        int idx = url.indexOf('#');
        if (idx >= 0) {
            url = url.substring(0, idx);
        }

        url = url.replace("/./", "/");

	sqlFnLower           FuncName = "LOWER"
	sqlFnSubstring       FuncName = "SUBSTRING"
	sqlFnTrim            FuncName = "TRIM"
	sqlFnUpper           FuncName = "UPPER"
)

var (
	errUnimplementedCast = errors.New("This cast not yet implemented")
	errNonStringTrimArg  = errors.New("TRIM() received a non-string argument")
	errNonTimestampArg   = errors.New("Expected a timestamp argument")
)

        if (StringUtil.isNotBlank(value)) {
            split(value, ",").of(stream -> stream.forEach(list::add));
        }
        return list.stream().filter(StringUtil::isNotBlank).map(String::trim).toArray(n -> new String[n]);
    }

    protected String[] getDefaultRolesAsArray() {
        final List<String> list = new ArrayList<>();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

                break;
            case 5:
                if ( ch == '=' ) {
                    key = str.substring(mark, si).trim();
                    mark = si + 1;
                }
                else if ( ch == ',' || ch == ']' ) {
                    String val = str.substring(mark, si).trim();
                    mark = si + 1;
                    if ( key == null )
                        key = "endpoint";

                .get(stream -> stream.filter(StringUtil::isNotBlank).map(s -> s.trim() + ":").toArray(n -> new String[n]));
        fileProtocols = split(fessConfig.getCrawlerFileProtocols(), ",")
                .get(stream -> stream.filter(StringUtil::isNotBlank).map(s -> s.trim() + ":").toArray(n -> new String[n]));

        loadProtocols("org.codelibs.fess.net.protocol");