ifptex – Check if the engine is pTeX or one of its derivatives

The ifptex package is a counterpart of ifxetex, ifluatex, etc. for the ptex engine. The ifuptex package is an alias to ifptex provided for backward compatibility.

Sources	/macros/generic/ifptex
Documentation	README.md Readme (Japanese)
Repository	https://github.com/zr-tex8r/ifptex
Version	2.2c 2023-04-08
Licenses	MIT License
Copyright	2008–2023 Takayuki YATO
Maintainer	Takayuki Yato
Contained in	TeX Live as ifptex MiKTeX as ifptex
Topics	Japanese Environment query

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