locationBuf.append(contextPath);
                }
                locationBuf.append('/');
                locationBuf.append(servletPath.substring(path.length()));
                boolean append = false;
                final Map<String, String[]> parameterMap = new HashMap<>(req.getParameterMap());

        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
    }

            for (String repo : repos) {
                repo = repo.trim();
                // see if this is a negative match
                if (repo.length() > 1 && repo.startsWith("!")) {
                    if (repo.substring(1).equals(originalId)) {
                        // explicitly exclude. Set result and stop processing.
                        result = false;
                        break;
                    }
                }

            if (value == null) {
                value = callback.apply(name);
            }
            if (name.startsWith(OVERRIDE_PREFIX)) {
                String overrideName = name.substring(OVERRIDE_PREFIX.length());
                props.put(overrideName, substVars(value, name, props, callback));
            } else {
                props.put(name, substVars(value, name, props, callback));
            }

     * } catch (NameNotFoundException nnfe) {
     * uhe = new UnknownHostException(nnfe.getMessage());
     * }
     * int dot = name.indexOf('.');
     * if (dot == -1)
     * break;
     * name = name.substring(dot + 1);
     * }
     * } catch (NamingException ne) {
     * if (log.level > 1)
     * ne.printStackTrace(log);
     * }
     *
     * throw uhe != null ? uhe : new UnknownHostException("invalid name");

                    }
                }
                if (matcher.group(3) != null) {
                    tag.setCss(matcher.group(3).substring(1));
                }
                if (matcher.group(4) != null) {
                    tag.setId(matcher.group(4).substring(1));
                }
                return tag;
            }
            throw new FessSystemException("Invalid pruned tag format: '" + v

		"extract(YEAR from '2018-01-09')",
		"extract(month from '2018-01-09')",

		"extract(hour from '2018-01-09')",
		"extract(day from '2018-01-09')",
		"substring('abcd' from 2 for 2)",
		"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  ')",

                            active = false;
                            selector = selector.substring(1);
                        } else if (token.charAt(0) == '+') {
                            selector = selector.substring(1);
                        }
                    }
                    boolean optional = false;

        normalized = normalized.replaceAll("\\\\+", "\\\\");

        // Remove trailing slash unless it's the root
        if (normalized.length() > 1 && normalized.endsWith("\\")) {
            normalized = normalized.substring(0, normalized.length() - 1);
        }

        // Handle current directory references
        normalized = normalized.replace("\\.", "");
        normalized = normalized.replace(".\\", "");

class HuffmanTest {
  @Test
  fun roundTripForRequestAndResponse() {
    val s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
    for (i in s.indices) {
      assertRoundTrip(s.substring(0, i).encodeUtf8())
    }
    val random = Random(123456789L)
    val buf = ByteArray(4096)
    random.nextBytes(buf)
    assertRoundTrip(buf.toByteString())
  }

  private fun assertRoundTrip(data: ByteString) {