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"));

     *
     * @param text
     *            The text to trim
     * @return The resulting string
     */
    public static final String ltrim(final String text) {
        return ltrim(text, null);
    }

    /**
     * Removes the specified characters from the left side of the string.
     *
     * @param text
     *            The text to trim
     * @param trimText
     *            The characters to remove

                    }
                    if (pair.length == 2) {
                        String sortValue = pair[1].trim();
                        if (StringUtil.isBlank(sortValue) || "score".equals(sortValue)) {
                            sortValue = "score.desc";
                        }
                        return new Pair<>(pair[0].trim(), sortValue);
                    }

                if (buf != null && sitemapUrl != null) {
                    sitemapUrl.setLoc(buf.toString().trim());
                    buf = null;
                }
            } else if (LASTMOD_ELEMENT.equals(elementName)) {
                if (buf != null && sitemapUrl != null) {
                    sitemapUrl.setLastmod(buf.toString().trim());
                    buf = null;
                }

                buf.append("</item>");
            }
        }
        buf.append("</list>");
        // TODO support other type
        // TODO trim(default)
        return "<field name=\"" + XmlUtil.escapeXml(name) + "\">" + buf.toString().trim() + "</field>\n";
    }

    /**
     * Returns the additional data for the response.
     * @param responseData The response data.

		input    []int
		trimLen  int
		expected []int
	}{
		{
			name:     "Trim two elements from end",
			input:    []int{1, 2, 3, 4, 5},
			trimLen:  2,
			expected: []int{1, 2, 3},
		},
		{
			name:     "Trim entire slice",
			input:    []int{1, 2, 3},
			trimLen:  3,
			expected: []int{},
		},
		{
			name:     "Trim length greater than slice length",
			input:    []int{1, 2, 3},
			trimLen:  5,

		"substring('abcd' from 2)",
		"substring('abcd' , 2 , 2)",

		"substring('abcd' , 22 )",
		"trim('  aab  ')",
		"trim(leading from '  aab  ')",
		"trim(trailing from '  aab  ')",
		"trim(both from '  aab  ')",

		"trim(both '12' from '  aab  ')",
		"trim(leading '12' from '  aab  ')",
		"trim(trailing '12' from '  aab  ')",
		"count(23)",
	}
	for i, tc := range validCases {

        buf.append(LF);
        buf.append(StringEscapeUtils.escapeJson(discloser.getSavedSubject().orElse(StringUtil.EMPTY).trim()));
        buf.append(LF).append("```");
        buf.append(LF).append(StringEscapeUtils.escapeJson(discloser.getSavedPlainText().orElse(StringUtil.EMPTY).trim()));
        buf.append(LF).append("```\"}");
        return buf.toString();
    }

    /**

                        paramMap.put("unknown." + (unknownKey + 1), line.substring(pos + 1).trim());
                        unknownKey++;
                    } else if (pos > 0) {
                        final String key = line.substring(0, pos).trim();
                        if (pos < line.length()) {
                            String data = line.substring(pos + 1).trim();

internal fun Map<String, String>.commonToHeaders(): Headers {
  // Make a defensive copy and clean it up.
  val namesAndValues = arrayOfNulls<String>(size * 2)
  var i = 0
  for ((k, v) in this) {
    val name = k.trim()
    val value = v.trim()
    headersCheckName(name)
    headersCheckValue(value, name)
    namesAndValues[i] = name
    namesAndValues[i + 1] = value
    i += 2
  }