Copy Down

Convert HTML into Markdown with Java.

Installation

Gradle:

dependencies {
    compile 'io.github.furstenheim:copy_down:1.1'
}

Maven:

<dependencies>
    <dependency>
        <groupId>io.github.furstenheim</groupId>
        <artifactId>copy_down</artifactId>
        <version>1.1</version>
    </dependency>
</dependencies>

JSoup Compatibility

This library has a strong reliance on JSoup. Using a different version of it will lead to unexpected behaviours. Sadly, Java does not allow several versions of a library (unlike Node.js) so if your project is already using JSoup that version will have priority.

Supported versions are:

This Library	Jsoup
1.0	1.13
1.1	1.15

Usage

import io.github.furstenheim.CopyDown;
public class Main {
    public static void main (String[] args) {
        CopyDown converter = new CopyDown();
        String myHtml = "<h1>Some title</h1><div>Some html<p>Another paragraph</p></div>";
        String markdown = converter.convert(myHtml);
        System.out.println(markdown);
        // Some title\n==========\n\nSome html\n\nAnother paragraph\n
    }
}

Options

It is possible to use options for converting markdown:

import io.github.furstenheim.CopyDown;
import io.github.furstenheim.Options;
import io.github.furstenheim.OptionsBuilder;

public class Main {
   public static void main (String[] args) {
       OptionsBuilder optionsBuilder = OptionsBuilder.anOptions();
       Options options = optionsBuilder
               .withBr("-")
               // more options
               .build();
       CopyDown converter = new CopyDown(options);
       String myHtml = "<h1>Some title</h1><div>Some html<p>Another paragraph</p></div>";
       String markdown = converter.convert(myHtml);
       System.out.println(markdown);
   }
}

Option	Valid values	Default
headingStyle	SETEXT or ATX	SETEXT
hr	Any Thematic break	* * *
bulletListMarker	-, +, or *	*
codeBlockStyle	INDENTED or FENCED	INDENTED
fence	``` or ~~~	```
emDelimiter	_ or *	_
strongDelimiter	** or __	**
linkStyle	INLINED or REFERENCED	INLINED
linkReferenceStyle	FULL, COLLAPSED, or SHORTCUT	FULL

Acknowledgment

This library is a port to Java of the wonderful library Turndown.js. This library passes the same test suite as the original library to ensure same behavior.