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%%
%% This is file `altsubsup.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% altsubsup.dtx (with options: `package')
%%
%% This is a generated file.
%%
%% Copyright (C) 2022 by Julien Labbé <Julien.Labbe@univ-grenoble-alpes.fr>
%%
%% This file 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{altsubsup}
[2022/01/23 v1.0 .dtx altsubsup file]
\ProvidesPackage{altsubsup}[2022/01/23, v1.0, Alternative and customisable
subscripts and superscripts, with square brackets.]
\newif\ifaltsbsp@subscript \altsbsp@subscripttrue
\newif\ifaltsbsp@superscript \altsbsp@superscripttrue
\DeclareOption{subscript} {\altsbsp@subscripttrue \altsbsp@superscriptfalse}
\DeclareOption{superscript} {\altsbsp@subscriptfalse \altsbsp@superscripttrue }
\DeclareOption{both} {\altsbsp@subscripttrue \altsbsp@superscripttrue }
\DeclareOption*{\PackageWarning{altsubsup}{Unknown option \CurrentOption.}}
\ProcessOptions\relax
\AtBeginDocument{%
\ifaltsbsp@subscript \catcode`\_=12 \mathcode`\_="8000 \fi%
\ifaltsbsp@superscript \catcode`\^=12 \mathcode`\^="8000 \fi%
}
\ifaltsbsp@subscript%
\begingroup\lccode`\~=`\_\lowercase{\endgroup%
\def~}{\@ifnextchar[% dummy bracket ]
{\altsbsp@subwrapper}% bracket wrapper
{\sb}% standard form
}%
\fi
\ifaltsbsp@superscript%
\begingroup\lccode`\~=`\^\lowercase{\endgroup%
\def~}{\@ifnextchar[% dummy bracket ]
{\altsbsp@supwrapper}% bracket wrapper
{\sp}% standard form
}%
\fi
\def\SetAltSubscriptCommand#1{\let\altsbsp@altsubcmd#1}%
\def\altsbsp@subwrapper[#1]{\sb{\altsbsp@altsubcmd{#1}}}%
\def\SetAltSuperscriptCommand#1{\let\altsbsp@altsupcmd#1}%
\def\altsbsp@supwrapper[#1]{\sp{\altsbsp@altsupcmd{#1}}}%
\newcommand{\SetAltSubSupCommands}[1]{%
\SetAltSubscriptCommand{#1}%
\SetAltSuperscriptCommand{#1}%
}
\RequirePackage{amstext}%
\SetAltSubSupCommands{\text}%
\ifaltsbsp@superscript%
\begingroup \catcode`\^=12%
\gdef\altsbsp@pr@m@s{% copy of \@pr@m@s code from latex.ltx
\ifx'\@let@token
\expandafter\pr@@@s
\else
\ifx^\@let@token
\expandafter\expandafter\expandafter\pr@@@t
\else
\egroup
\fi
\fi}
\endgroup
\let\pr@m@s\altsbsp@pr@m@s
\fi
\endinput
%%
%% End of file `altsubsup.sty'.
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