# Java Prettify

[TOC]

This library is a java port of [Google Prettify][jsprettify], the
current version ported is 4-Mar-2013. The copyright holder of the
Google Prettify is Mike Samuel (mikesamuel@gmail.com). It is licensed
under the Apache License Version 2. This port is distributed under
Apache License Version 2.

[jsprettify]: https://github.com/google/code-prettify

If you need an editor more than a highlighter, please find jsyntaxpane.

## Alternatives

[Java SyntaxHighlighter](https://code.google.com/p/java-syntax-highlighter/)

## Requirement

Java SE 6 or up

## Language Supported

The comments in prettify.parser.Prettify are authoritative but the
lexer should work on a number of languages including C and friends,
Java, Python, Bash, SQL, HTML, XML, CSS, Javascript, Makefiles
and Rust. It works passably on Ruby, PHP, VB, and Awk and a decent
subset of Perl and Ruby, but, because of commenting conventions,
doesn't work on Smalltalk, or CAML-like languages.

LISPy languages are supported via an extension: prettify.lang.LangLisp.

And similarly for Clojure, CSS, Go, Haskell, Lua, OCAML, SML, F#,
Matlab, Nemerle, Protocol Buffers, Scala, SQL, TeX, LaTeX, VHDL,
Visual Basic, WikiText, XQuery, and YAML.

If you'd like to add an extension for your favorite language,
please look at prettify.lang.LangLisp.

## Themes

Default, Desert, Sons of Obsidian, Sunburst

## Configurations

* Allows you to change the first (starting) line number.
* Allows you to turn gutter with line numbers on and off.
* Allows you to highlight one or more lines to focus user's attention.

## Example

Note that this highlighter extends Swing component, so all operations
are better be executed inside Swing dispatching thread.

```java
import java.io.*;
import java.util.Arrays;
import java.util.logging.*;
import javax.swing.*;
import prettify.PrettifyParser;
import prettify.theme.ThemeDefault;
import syntaxhighlight.*;

public class Example {

  public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {

      @Override
      public void run() {
        // the Prettify parser
        Parser parser = new PrettifyParser();

        // initialize the highlighter and use Default theme
        SyntaxHighlighter highlighter = new SyntaxHighlighter(parser, new ThemeDefault());
        // set the line number count from 10 instead of 1
        highlighter.setFirstLine(10);
        // set to highlight line 13, 27, 28, 38, 42, 43 and 53
        highlighter.setHighlightedLineList(Arrays.asList(13, 27, 28, 38, 42, 43, 53));
        try {
          highlighter.setContent(new File("test.html"));
        } catch (IOException ex) {
          Logger.getLogger(Example.class.getName()).log(Level.SEVERE, null, ex);
        }

        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setContentPane(highlighter);
        frame.setLocationByPlatform(true);
        frame.pack();
        frame.setVisible(true);
      }
    });
  }
}
```

## Sample Screenshot

![sample screenshot](https://java-prettify.googlecode.com/svn/wiki/ThemesDemo/ThemeDesert.png)

## Support & Discussion

[Support & Discussion Group](https://groups.google.com/group/java-prettify)

## Known Issues

* Perl formatting is really crappy. Partly because Perl is hard to parse.