*/
@GwtCompatible
abstract class CommonMatcher {
  public abstract boolean matches();

  public abstract boolean find();

  public abstract boolean find(int index);

  public abstract String replaceAll(String replacement);

  public abstract int end();

  public abstract int start();

  public void testGetKeyMatchesString() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {
      String fieldName = property.name();
      String expected = Ascii.toLowerCase(fieldName).replaceAll("_", ".");
      assertEquals(expected, property.key());
    }
  }

  public void testGetValue() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {

        if (url == null) {
            return null;
        }
        String convertedUrl = url;
        for (final Map.Entry<String, String> entry : convertMap.entrySet()) {
            convertedUrl = convertedUrl.replaceAll(entry.getKey(), entry.getValue());
        }
        return convertedUrl;
    }

    /**
     * Adds a conversion rule.
     *
     * @param target The target string.

     */
    // GET /api/admin/log/file/{id}
    @Execute
    public StreamResponse get$file(final String id) {
        final String filename = new String(Base64.getDecoder().decode(id), StandardCharsets.UTF_8).replace("..", "").replaceAll("\\s", "");
        final String logFilePath = systemHelper.getLogFilePath();
        if (StringUtil.isNotBlank(logFilePath) && isLogFilename(filename)) {
            final Path path = Paths.get(logFilePath, filename);

			prefix += "*"
		}

		pattern = prefix
	}

	if suffix != "" {
		if !strings.HasPrefix(suffix, "*") {
			suffix = "*" + suffix
		}

		pattern += suffix
	}

	pattern = strings.ReplaceAll(pattern, "**", "*")

	return pattern
}

// Rules - event rules
type Rules map[string]TargetIDSet

// Add - adds pattern and target ID.
func (rules Rules) Add(pattern string, targetID TargetID) {

                pos--;
            }

            value = escaped.substring(pos + 1);
        } else {
            value = escaped;
        }
        return value.replaceAll(escapedHighlightPre, highlightTagPre).replaceAll(escapedHighlightPost, highlightTagPost);
    }

    /**
     * Removes highlight tags from a string.
     *
     * @param str the string containing highlight tags

	// convert single quote into double quote
	sql = strings.ReplaceAll(sql, `'`, `"`)

	// convert dialect special quote into double quote
	switch DB.Dialector.Name() {
	case "postgres", "gaussdb":
		sql = strings.ReplaceAll(sql, `"`, `"`)
	case "mysql", "sqlite":
		sql = strings.ReplaceAll(sql, "`", `"`)
	case "sqlserver":
		sql = strings.ReplaceAll(sql, `'`, `"`)
	}

	return sql

            } else if (lowerPath.endsWith("/")) {
                response.setContentType("text/html;charset=utf-8");
            }
        }

        Path filePath = ResourceUtil.getSitePath(path.replaceAll("\\.\\.+", StringUtil.EMPTY).replaceAll("/+", "/").split("/"));
        if (Files.isDirectory(filePath)) {
            filePath = filePath.resolve("index.html");
        }
        if (Files.exists(filePath)) {

        metadata.merge(new Metadata());

        String dateAfter = gregorianDate();

        String ts = metadata.metadata.getVersioning().getSnapshot().getTimestamp();
        String datePart = DATE_FILTER.matcher(ts).replaceAll("");

        /* Allow for this test running across midnight */
        Set<String> expected = new HashSet<>(Arrays.asList(dateBefore, dateAfter));

     */
    public static String replace(final Object input, final String regex, final String replacement) {
        if (input == null) {
            return StringUtil.EMPTY;
        }
        return input.toString().replaceAll(regex, replacement);
    }

    /**
     * Formats code content with syntax highlighting and line numbers.
     *
     * @param prefix the line number prefix pattern