Index of /macros/generic/ifxptex
      Name                    Last modified       Size  Description

[DIR] Parent Directory 13-Jan-2021 01:30 - [   ] ifxptex-doc.pdf 27-Dec-2017 10:57 192k [TXT] ifxptex-doc.tex 27-Dec-2017 10:57 8k [TXT] ifxptex.sty 27-Dec-2017 10:57 3k

The ifxptex package --- Detect pTeX and its derivatives

CTAN Homepage:


Version: 2017-12-27 v0.2

Copyright 2017 Yue ZHANG

License: Knuth License (

This package provides commands for detecting pTeX and its derivatives (e-pTeX,
upTeX, e-upTeX, and ApTeX). Both LaTeX and plain TeX are supported.