%% %% 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} {2018/04/04} {0.1.0} {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: \IfBooleanTF{#2}{ \group_begin: \hbox_set:Nn\l__alignedsets_clap_box{ $ \displaystyle {}\__alignedsets_original_underset:nn{\mathclap{#1}}{#3}{} \m@th $ } \hbox_set:Nn\l__alignedsets_full_box{ $ \displaystyle {}\__alignedsets_original_underset:nn{#1}{#3}{} \m@th $ } \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'.