Paul Isambert
LaTeX code and documentation in LaTeX-format file
Lists using a single active character
Support for writing modular and customisable code
Translate input files on the fly
On-screen presentations for (almost) all formats
Tools to create bibliographies in TeX
PDF features across formats and engines
Documentation macros
Macros for Segmented Discourse Representation Theory
Selective filtering of error messages and warnings
Easy drawing of syntactic proofs
Macros to write format-independent packages
Automatic index generation for XeLaTeX
A string finder for XeTeX
Yet Another Key System