* @return the extracted value, or null if no match
     */
    protected String getValue(final Pattern pattern, final String line) {
        final Matcher m = pattern.matcher(line);
        if (m.matches() && m.groupCount() > 0) {
            return m.group(1);
        }
        return null;
    }

    /**
     * Strips comments from a line (everything after '#' character).

We welcome contributions to Fess Crawler! Please follow these guidelines:

1. **Fork** the repository
2. **Create** a feature branch (`git checkout -b feature/amazing-feature`)
3. **Commit** your changes (`git commit -m 'Add amazing feature'`)
4. **Push** to the branch (`git push origin feature/amazing-feature`)
5. **Open** a Pull Request

### Development Setup

```bash
# Clone the repository

        String lang = "en";

        List<AnalyzeToken> tokens = analyzer.analyze(text, field, lang);

        assertNotNull(tokens);
        assertEquals(8, tokens.size()); // "I'm" is split into "I" and "m" by our simple tokenizer
        assertEquals("Hello", tokens.get(0).getTerm());
        assertEquals("world", tokens.get(1).getTerm());
        assertEquals("How", tokens.get(2).getTerm());

3. Follow coding standards: `mvn formatter:format`
4. Add tests for new functionality
5. Ensure all tests pass: `mvn test`
6. Check license headers: `mvn license:format`
7. Commit changes: `git commit -m 'Add amazing feature'`
8. Push to branch: `git push origin feature/amazing-feature`
9. Open a Pull Request

### Code Style

- Use Eclipse formatter configuration (`src/config/eclipse/formatter/java.xml`)

    <magic priority="50">
      <match value="Extended\ Module:" type="string" offset="0"/>
      <match value="BMOD2STM" type="string" offset="21"/>
      <match value="M.K." type="string" offset="1080"/>
      <match value="M!K!" type="string" offset="1080"/>
      <match value="FLT4" type="string" offset="1080"/>
      <match value="FLT8" type="string" offset="1080"/>