2.0.0

Rainbow 2.0 is basically a complete rewrite from the ground up. Here is a summary of most of the changes

Changes

• Updated code highlighting to use webworkers to prevent the main thread from being blocked while processing code blocks

• Added support for Node.js

• Added Rainbow.colorSync method for synchronous highlighting (only for node.js)

• Refactored source code into ES6 modules (using buble + rollup for compilation)

• Updated unit tests to run via Karma

• Added ES6 support to the JavaScript language grammars

• Updated themes to use SASS to share common logic

• Added SASS mixin to make it easy to add custom rules to specific languages

• Updated themes to wait until code is highlighted before displaying it to prevent a flash of unstyled content (FOUC)

• Added a preload animation for when the code takes some time to highlight

• Updated code highlighting for each block to be self contained. Previously there was a global state that led to some obscure bugs.

• Fixed race condition where calling Rainbow.color while another Rainbow.color call is running could cause some strange behavior

• Added ability for a language to extend any other language.

  For example you could add a language grammar for jsx that inherits all the rules from javascript while javascript inherits all the rules from generic..

• Updated build process to run using gulp to simplify creating custom packages

• Updated build to use Uglify instead of closure compiler

• Added ability to defer highlighting so it does not happen immediately on page load

Backwards incompatible changes

• Removed Rainbow.addClass method

• Updated Rainbow.extend to no longer extend generic patterns by default

  This means that passing true as the second argument is no longer needed. Instead if you pass a language as the second argument the rules will extend that language.

• Dropped support for older versions of Chrome/Firefox/IE.

  Check README.md for list of supported browsers.