%%
%% This is file `verifycommand.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% verifycommand.dtx  (with options: `package')
%% This is a generated file.
%% Copyright 2024 Brian Dunn
%% 
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%   http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{verifycommand}
    [2024/01/11 v1.00 Verify definitions have not changed.]





\RequirePackage{etoolbox}
\RequirePackage{iftex}
\newbool{VERCMD@enable}
\booltrue{VERCMD@enable}
\DeclareOption{disable}{%
    \boolfalse{VERCMD@enable}%
    \typeout{----}%
    \typeout{Package verifycommand: Turned off by option 'disable'.}%
    \typeout{----}%
}

\ProcessOptions\relax
\catcode`\&=0
&catcode`&\=12
&def&VERCMD@backslash{\}
&catcode`&\=0
\catcode`\&=4
\newcommand{\VERCMD@mdfivesum}[1]{%
    \PackageError{verifycommand}
        {No MD5 macro was found}
        {%
            Verifycommand must find the macros \protect\pdfmdfivesum\space
            or \protect\mdfivesum.%
        }
}
\ifdef{\pdfmdfivesum}
    {\let\VERCMD@mdfivesum\pdfmdfivesum}
    {}
\ifLuaTeX
\RequirePackage{pdftexcmds}
\let\VERCMD@mdfivesum\pdf@mdfivesum
\fi
\ifXeTeX
\@ifundefined{pdffivesum}{}
    {\let\VERCMD@mdfivesum\pdfmdfivesum}
\@ifundefined{mdfivesum}{}
    {\let\VERCMD@mdfivesum\mdfivesum}
\fi

\def\VERCMD@mdfive#1{%
    \edef\VERCMD@temp{\VERCMD@mdfivesum{\meaning#1}}%
}
\newcommand*{\VERCMD@whatchanged}{}

\newcommand*{\VERCMD@addchanged}[2]{%
    \ifdefempty{\VERCMD@whatchanged}%
        {}%
        {\apptocmd{\VERCMD@whatchanged}{^^J}{}{}}%
    \apptocmd{\VERCMD@whatchanged}{Definition changed: #2^^J}{}{}%
    \apptocmd{\VERCMD@whatchanged}{Definition changed: \space\space\space#1}{}{}%
}

\AfterEndDocument{
    \ifdefempty{\VERCMD@whatchanged}{}{%
        \typeout{--------------------------------}%
        \typeout{WARNING: Something may fail.}%
        \typeout{\VERCMD@whatchanged}%
        \typeout{--------------------------------}%
    }
}

\def\VERCMD@ProgWarning#1{%
    \GenericWarning{%
        \@spaces\@spaces
    }{%
        Warning: #1%
    }%
}

\newcommand*{\VERCMD@Warning}[3]{%
    \ifblank{#1}%
        {%
            \VERCMD@ProgWarning{%
                Something may fail.  A definition has changed:\MessageBreak
                \ifblank{#2}{}{#2: }\string#3\MessageBreak
                \VERCMD@temp\MessageBreak
            }
            \expandafter\VERCMD@addchanged\expandafter{\VERCMD@temp}{\string#3}%
        }%
        {%
            \PackageWarning{#1}{%
                Something may fail.  A definition has changed:\MessageBreak%
                \ifblank{#2}{}{#2: }%
                \string#3\MessageBreak%
                \VERCMD@temp\MessageBreak%
            }%
            \expandafter\VERCMD@addchanged\expandafter{\VERCMD@temp}{\ifblank{#2}{}{#2: }\string#3}%
        }%
}
\ExplSyntaxOn
\NewDocumentCommand{\VerifyCommand}{O{} O{} m m}{%
    \ifbool{VERCMD@enable}{%
    \edef\VERCMD@temp{Unknown~definition}%
     \ifcsdef{\cs_to_str:N #3~code}%
        {%
            \expandafter\VERCMD@mdfive%
                \csname \cs_to_str:N #3~code\endcsname%
        }%
        {%
             \ifcsdef{\VERCMD@backslash\cs_to_str:N #3~}%
                {%
                    \expandafter\VERCMD@mdfive%
                        \csname \cs_to_str:N #3~code\endcsname%
                }%
                {%
                     \ifcsdef{\cs_to_str:N #3~}%
                        {%
                            \expandafter\VERCMD@mdfive%
                                \csname \cs_to_str:N #3~\endcsname%
                        }%
                        {%
                             \ifcsdef{\VERCMD@backslash\cs_to_str:N #3}%
                                {%
                                    \expandafter\VERCMD@mdfive%
                                        \csname \VERCMD@backslash\cs_to_str:N #3\endcsname%
                                }%
                                {%
                                     \ifdef{#3}%
                                        {\VERCMD@mdfive#3}%
                                        {}%
                                }%
                        }%
                }%
        }%
    \ifdefstring{\VERCMD@temp}{#4}%
        {}%
        {%
            \VERCMD@Warning{#1}{#2}{#3}%
        }%
    }% if package enabled
    {}% if package not enabled
}
\NewDocumentCommand{\VerifyEnvironment}{O{} O{} m m m}{%
    \ifbool{VERCMD@enable}{%
    \edef\VERCMD@temp{Unknown~definition}%
     \ifcsdef{environment~#3~code}%
        {%
            \expandafter\VERCMD@mdfive%
                \csname environment~#3~code\endcsname%
        }%
        {%
             \ifcsdef{\VERCMD@backslash#3}%
                {%
                    \expandafter\VERCMD@mdfive%
                        \csname \VERCMD@backslash#3\endcsname%
                }%
                {%
                     \ifcsdef{#3}%
                        {\expandafter\VERCMD@mdfive\csname #3\endcsname}%
                        {}%
                }%
        }%
    \ifdefstring{\VERCMD@temp}{#4}%
        {}%
        {%
            \VERCMD@Warning{#1}{#2}{#3}%
        }%
    \edef\VERCMD@temp{Unknown~definition}%
     \ifcsdef{environment~#3~end~aux~}%
        {%
            \expandafter\VERCMD@mdfive
                \csname environment~#3~end~aux~\endcsname%
        }%
        {%
             \ifcsdef{end#3}%
                {%
                    \expandafter\VERCMD@mdfive%
                        \csname end#3\endcsname%
                }%
                {}%
        }%
    \ifdefstring{\VERCMD@temp}{#5}%
        {}%
        {%
            \VERCMD@Warning{#1}{#2}{(end)#3}%
        }%
    }% if package enabled
    {}% if package not enabled
}
\ExplSyntaxOff
\endinput
%%
%% End of file `verifycommand.sty'.