ifuptex.sty

%%
%% This is file 'ifuptex.sty'.
%% 
%% Copyright (c) 2008-2023 Takayuki YATO (aka. "ZR")
%%   GitHub:   https://github.com/zr-tex8r
%%   Twitter:  @zr_tex8r
%%
%% This package is distributed under the MIT License.
%%
%
% NOTE: Now ifuptex is merely an alias to ifptex.
%
%% avoid multiple loading
\csname\if11bxipIfuptexLoaded\fi\endcsname%
%% code guards
\begingroup\count255\catcode61\global\catcode61\catcode48%
\catcode91=1\catcode93=2\xdef\bxipIfuptexLoaded[%
\catcode61=\the\count255%
\catcode13=\the\catcode13%
\catcode32=\the\catcode32%
\catcode35=\the\catcode35%
\catcode123=\the\catcode123%
\catcode125=\the\catcode125%
\endlinechar=\the\endlinechar]%
\endgroup\catcode32=10\catcode13=5\endlinechar=13\relax%
\catcode35=6 \catcode123=1 \catcode125=2
\edef\bxipIfuptexLoaded{\bxipIfuptexLoaded
\catcode45=\the\catcode45%
\catcode46=\the\catcode46%
\catcode47=\the\catcode47%
\catcode58=\the\catcode58%
\catcode64=\the\catcode64%
\relax}
\catcode45=12 % <->
\catcode46=12 % <.>
\catcode47=12 % </>
\catcode58=12 % <:>
\catcode64=11 % <@>
\edef\bxip@up@restore@codes{\bxipIfuptexLoaded
  \noexpand\let\noexpand\bxip@up@restore@codes\relax}
\def\bxipIfuptexLoaded{\endinput}

%% check for LaTeX
\ifx\RequirePackage\@undefined %<*!LaTeX>
  \long\def\bxip@input#1\ProvidesPackage#2[#3]{%
    \def\bxip@input\RequirePackage##1[##2]{\input ##1.sty\relax}%
    \immediate\write-1{Package: #2 #3}}
  \expandafter\bxip@input
\else                          %<*LaTeX>
  \let\bxip@input\relax
\fi                            %</LaTeX>

%% package declaration
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{ifuptex}[2023/04/08 v2.2c pTeX checker]

%% load ifptex
\bxip@input
\RequirePackage{ifptex}[2021/07/01]

%% all done
\bxip@up@restore@codes
\endinput
%% EOF