# Package =TWiki::UI::RDiff UI functions for diffing.
## [[StaticMethod]] **diff** `($session,$web,$topic,$query)` `diff` command handler. This method is designed to be invoked via the `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 |