Text_Diff - A PHP Component that supports multiple diff engines, data types, and output formats.
||Chuck Hagenbuch (as lead), Jan Schneider (as lead)
||PHP, algorithm is mostly lifted from the perl module
||Pear PHP package. Supports patch & binary files
||GNU Diffutils' system diff command
||PHP, for parsing diff files, I think
- Context Diff (classic)
- Wiki-style (inline)
- Unified (classic)
- 3 Way (merge)
- Patch (text or binaries), - uses xdiff or shell
* Bug tracker  
* Code repository:  
||These classes provide functionality useful for all kind of applications.
||This class provides the default exception handlers for the Horde Application Framework.
* #120955: Integrate Diff into Core
* #1821548: Add a "diff" of some kind to the CMI UI