import org.codelibs.fess.crawler.Constants;
import org.codelibs.fess.crawler.entity.ExtractData;
import org.codelibs.fess.crawler.exception.ExtractException;
import org.commonmark.ext.front.matter.YamlFrontMatterExtension;
import org.commonmark.ext.front.matter.YamlFrontMatterVisitor;
import org.commonmark.node.AbstractVisitor;
import org.commonmark.node.Heading;
import org.commonmark.node.Link;
import org.commonmark.node.Node;

tags:
  - crawler
  - extractor
  - markdown
---

# Introduction

This is a sample Markdown document for testing the MarkdownExtractor.

## Features

The extractor should handle:

- YAML front matter extraction
- Heading structure
- **Bold text** and *italic text*
- Lists and other formatting

### Code Examples

Here is some inline `code` and a code block:

```java
public class Example {

        final InputStream in = ResourceUtil.getResourceAsStream("extractor/markdown/test.md");
        final ExtractData extractData = markdownExtractor.getText(in, null);
        CloseableUtil.closeQuietly(in);

        // Verify front matter metadata
        final String[] titles = extractData.getValues("frontmatter.title");
        assertNotNull(titles);
        assertEquals("Sample Markdown Document", titles[0]);

			<artifactId>commonmark</artifactId>
			<version>${commonmark.version}</version>
		</dependency>
		<dependency>
			<groupId>org.commonmark</groupId>
			<artifactId>commonmark-ext-yaml-front-matter</artifactId>
			<version>${commonmark.version}</version>
		</dependency>
		<dependency>
			<groupId>com.google.cloud</groupId>
			<artifactId>google-cloud-storage</artifactId>

          trailer as string: TRUEVISION-XFILE\\x2E\\x00
          Some .tga files may be conflicting with application/x-123 recognition, 
          therefore this mime-type must be set in front of application/x-123 -->
     <_comment>Targa image data</_comment>
     <magic priority="90">
        <match value="0x01010000" type="big32" offset="1" >