checkArgument(
        !separatorPattern.matcher("").matches(),
        "The pattern may not match the empty string: %s",
        separatorPattern);

    return new Splitter(
        (splitter, toSplit) -> {
          CommonMatcher matcher = separatorPattern.matcher(toSplit);
          return new SplittingIterator(splitter, toSplit) {
            @Override

             String invalidLink = matcher.group();
             errorsForFile.add(new Error(lineNumber, line, "Markdown-style links are not supported: " + invalidLink));
        }
    }

    private void gatherDeadLinksInLine(File sourceFile, String line, int lineNumber, List<Error> errorsForFile) {
        Matcher matcher = linkPattern.matcher(line);
        while (matcher.find()) {

    checkArgument(
        !separatorPattern.matcher("").matches(),
        "The pattern may not match the empty string: %s",
        separatorPattern);

    return new Splitter(
        (splitter, toSplit) -> {
          CommonMatcher matcher = separatorPattern.matcher(toSplit);
          return new SplittingIterator(splitter, toSplit) {
            @Override

    }

    /**
     * Gets the current match expression.
     *
     * @return the match expression string
     */
    public String getMatchExpression() {
        return matchExpression;
    }

    /**
     * Sets the match expression used to determine if documents should be boosted.
     *
     * @param expression the match expression string
     */

        assertTrue(tagWithIdAndCss.matches(nodeWithBothIdAndClass));

        // Node with correct id but different class should still match (id takes precedence)
        MockNode nodeWithCorrectIdWrongClass = new MockNode("div");
        nodeWithCorrectIdWrongClass.addAttribute("id", "main");
        nodeWithCorrectIdWrongClass.addAttribute("class", "other");
        assertTrue(tagWithIdAndCss.matches(nodeWithCorrectIdWrongClass));

        final String servletPath = request.getServletPath();
        final boolean matches = servletPath.startsWith(CHAT_API_PATH);
        if (logger.isTraceEnabled()) {
            logger.trace("ChatApiManager.matches() checking path. servletPath={}, expectedPrefix={}, matches={}", servletPath,
                    CHAT_API_PATH, matches);
        }
        return matches;
    }

    @Override

      if (nodeIndex == -1) {
        break;
      }

      // Check for matches at this node. Higher priority rules are checked last to overwrite.
      int metadata = trieData.charAt(nodeIndex * NODE_SIZE + 2);

      // Excluded match (!rule). If this bit is set, it means the current path is NOT a public
      // suffix, even if a previous rule matched. For example, "!www.ck" would exclude "www.ck"

                    .findFirst()
                    .orElseThrow(() -> new IOException("Can't find package definition in file " + file));
                Matcher matcher = pattern.matcher(packageLine);
                if (matcher.find()) {
                    return matcher.group(1);
                } else {
                    throw new IOException("Can't extract package name from file " + file);
                }
            }

     *
     * @param readingConverter The reading converter.
     * @param normalizer The normalizer.
     * @param languages The list of languages.
     * @param prefixMatchWeight The prefix match weight.
     */
    public SuggestQueryBuilder(final ReadingConverter readingConverter, final Normalizer normalizer, final List<String> languages,
            final float prefixMatchWeight) {

Otherwise, the path for `/users/{user_id}` would match also for `/users/me`, "thinking" that it's receiving a parameter `user_id` with a value of `"me"`.

Similarly, you cannot redefine a path operation:

{* ../../docs_src/path_params/tutorial003b_py310.py hl[6,11] *}

The first one will always be used since the path matches first.

## Predefined values { #predefined-values }