---+ Package =TWiki::UI::RDiff=

UI functions for diffing.


%TOC%

---++ StaticMethod *diff* <tt>($session,$web,$topic,$query)</tt>

=diff= command handler.
This method is designed to be
invoked via the =TWiki::UI::run= method.

Renders the differences between version of a TwikiTopic
| topic | topic that we are showing the differences of |
| rev1 | the higher revision |
| rev2 | the lower revision |
| render | the rendering style {sequential, sidebyside, raw, debug} | (preferences) DIFFRENDERSTYLE, =sequential= |
| type | {history, diff, last} history diff, version to version, last version to previous | =history= |
| context | number of lines of context |
| skin | the skin(s) to use to display the diff |
TODO:
   * add a {word} render style
   * move the common CGI param handling to one place
   * move defaults somewhere