if (equalsOffset == -1 || equalsOffset > ampersandOffset) {
          result.add(substring(pos, ampersandOffset))
          result.add(null) // No value for this name.
        } else {
          result.add(substring(pos, equalsOffset))
          result.add(substring(equalsOffset + 1, ampersandOffset))
        }
        pos = ampersandOffset + 1
      }
      return result
    }

                        if (target.length() > textFragmentPrefixLength + textFragmentSuffixLength) {
                            list.add(new TextFragment(null, target.substring(0, textFragmentPrefixLength),
                                    target.substring(target.length() - textFragmentSuffixLength), null));
                        }
                    }
                }
            }
        }

                final String key = entry.getKey();
                if (key.startsWith("fields.")) {
                    final String[] value = simplifyArray(entry.getValue());
                    fields.put(key.substring("fields.".length()), value);
                }
            }
            return fields;
        }

        @Override
        public Map<String, String[]> getConditions() {

            if (lastPos < 0) {
                break;
            }
            if (pos == 0) {
                value = " " + value.substring(lastPos + 3);
            } else {
                value = value.substring(0, pos) + " " + value.substring(lastPos + 3);
            }
            pos = value.indexOf("<!--");
        }
        return value;
    }

    /**

      String suffix = ".negate()";
      String description = toString();
      String negatedDescription =
          description.endsWith(suffix)
              ? description.substring(0, description.length() - suffix.length())
              : description + suffix;
      return new NegatedFastMatcher(
          precomputedPositive(negatedCharacters, table, negatedDescription)) {
        @Override

        if (username == null) {
            value = StringUtil.EMPTY;
        } else if (maxLength >= 0 && username.length() > maxLength) {
            value = username.substring(0, maxLength);
        } else {
            value = username;
        }
        return String.format(getSystemProperty(Constants.LDAP_SECURITY_PRINCIPAL, StringUtil.EMPTY), value);
    }

        if (start == -1) {
            return null;
        }
        start += 3;

        final int end = entryDn.indexOf(',', start);
        final String value = end == -1 ? entryDn.substring(start) : entryDn.substring(start, end);
        if (fessConfig.isLdapGroupNameWithUnderscores()) {
            return replaceWithUnderscores(value);
        }
        return value;
    }

    /**

            // wrong state
            return;
        }

        final int idx = url.indexOf('/', url.indexOf("://") + 3);
        String hostUrl;
        if (idx >= 0) {
            hostUrl = url.substring(0, idx);
        } else {
            hostUrl = url;
        }
        final String robotTxtUrl = hostUrl + "/robots.txt";

        // check url

   *     Stream.of("banana", "apple", "carrot", "asparagus", "cherry")
   *         .collect(
   *             toMultimap(
   *                  str -> str.charAt(0),
   *                  str -> str.substring(1),
   *                  MultimapBuilder.treeKeys().arrayListValues()::build));
   *
   * // is equivalent to
   *
   * static final ListMultimap<Character, String> FIRST_LETTER_MULTIMAP;
   *
   * static {

   *     Stream.of("banana", "apple", "carrot", "asparagus", "cherry")
   *         .collect(
   *             toMultimap(
   *                  str -> str.charAt(0),
   *                  str -> str.substring(1),
   *                  MultimapBuilder.treeKeys().arrayListValues()::build));
   *
   * // is equivalent to
   *
   * static final ListMultimap<Character, String> FIRST_LETTER_MULTIMAP;
   *
   * static {