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%%
%% This is file `aligned-overset.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% aligned-overset.dtx (with options: `package')
%%
%% Copyright (C) 2018 by Marcel Krueger
%%
%% This file may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3c 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}
\RequirePackage{expl3}
\ProvidesExplPackage
{aligned-overset}
{2018/01/18}
{0.0.1}
{aligned overset and underset}
\RequirePackage{xparse,amsmath,mathtools}
\box_new:N\l__alignedsets_clap_box
\box_new:N\l__alignedsets_full_box
\let\__alignedsets_original_overset:nn\overset
\cs_set:Npn\overset{
\group_align_safe_begin:
\__alignedsets_modified_overset:nwn
}
\NewExpandableDocumentCommand\__alignedsets_modified_overset:nwn{mt{&}m}{
\group_align_safe_end:
\IfBooleanTF{#2}{
\group_begin:
\hbox_set:Nn\l__alignedsets_clap_box{
$
\displaystyle
{}\__alignedsets_original_overset:nn{\mathclap{#1}}{#3}{}
$
}
\hbox_set:Nn\l__alignedsets_full_box{
$
\displaystyle
{}\__alignedsets_original_overset:nn{#1}{#3}{}
$
}
\hspace{
\dim_eval:n{(\box_wd:N\l__alignedsets_full_box-\box_wd:N\l__alignedsets_clap_box)/2}
}
\exp_args:NNNx
\group_end:
{&}
\hspace{
-\dim_eval:n{
(\box_wd:N\l__alignedsets_full_box-\box_wd:N\l__alignedsets_clap_box)/2
}
}
\__alignedsets_original_overset:nn{#1}{#3}
}{
\__alignedsets_original_overset:nn{#1}{#3}
}
}
\let\__alignedsets_original_underset:nn\underset
\cs_set:Npn\underset{
\group_align_safe_begin:
\__alignedsets_modified_underset:nwn
}
\NewExpandableDocumentCommand\__alignedsets_modified_underset:nwn{mt{&}m}{
\group_align_safe_end:
\group_end_ee:
\IfBooleanTF{#2}{
\group_begin:
\hbox_set:Nn\l__alignedsets_clap_box{
$
\displaystyle
{}\__alignedsets_original_underset:nn{\mathclap{#1}}{#3}{}
$
}
\hbox_set:Nn\l__alignedsets_full_box{
$
\displaystyle
{}\__alignedsets_original_underset:nn{#1}{#3}{}
$
}
\hspace{
\dim_eval:n{(\box_wd:N\l__alignedsets_full_box-\box_wd:N\l__alignedsets_clap_box)/2}
}
\exp_args:NNNx
\group_end:
{&}
\hspace{
-\dim_eval:n{
(\box_wd:N\l__alignedsets_full_box-\box_wd:N\l__alignedsets_clap_box)/2
}
}
\__alignedsets_original_underset:nn{#1}{#3}
}{
\__alignedsets_original_underset:nn{#1}{#3}
}
}
\endinput
%%
%% End of file `aligned-overset.sty'.
|