/usr/share/perl5/LaTeXML/Package/emulateapj.cls.ltxml is in latexml 0.8.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72  | # -*- mode: Perl -*-
# /=====================================================================\ #
# |  emulateapj                                                         | #
# | Implementation for LaTeXML                                          | #
# |=====================================================================| #
# | Part of LaTeXML:                                                    | #
# |  Public domain software, produced as part of work done by the       | #
# |  United States Government & not subject to copyright in the US.     | #
# |---------------------------------------------------------------------| #
# | Thanks to the arXMLiv group for initial implementation              | #
# |    http://arxmliv.kwarc.info/                                       | #
# | Released to the Public Domain                                       | #
# |---------------------------------------------------------------------| #
# | Bruce Miller <bruce.miller@nist.gov>                        #_#     | #
# | http://dlmf.nist.gov/LaTeXML/                              (o o)    | #
# \=========================================================ooo==U==ooo=/ #
package LaTeXML::Package::Pool;
use strict;
use warnings;
use LaTeXML::Package;
#**********************************************************************
# Seems to be equivalent.
LoadClass('aastex', withoptions => 1);
RequireResource('ltx-apj.css');
# ... Well, almost...
DefMacroI('\LongTables', undef, '');
Let('\begin{deluxetable*}', '\begin{deluxetable}');
Let('\end{deluxetable*}',   '\end{deluxetable}');
Let('\BeginEnvironment', '\begin');
Let('\EndEnvironment',   '\end');
# Hopefully, nobody is using these for real...
DefMacro('\BeforeBegin{}{}', '');
DefMacro('\BeforeEnd{}{}',   '');
DefMacro('\AfterBegin{}{}',  '');
DefMacro('\AfterEnd{}{}',    '');
DefMacro('\ApjSectionMarkInTitle{}',         '{#1.\ }');
DefMacro('\ApjSectionpenalty',               '0');
DefMacro('\AppendixApjSectionMarkInTitle{}', '{#1.\ }');
DefMacro('\NullCom{}', '');
DefMacroI('\apjsecfont',        undef, '\small');
DefMacroI('\lastfootnote',      undef, '\small');
DefMacroI('\lastpagefootnote',  undef, '\small');
DefMacroI('\lastpagefootnotes', undef, '\small');
DefMacro('\tableheadfrac{}', '');
DefMacro('\tabletypesize{}', '');
Let('\tablefontsize', '\tabletypesize');
DefMacro('\subtitle', '');
DefMacro('\submitted{}',   '\@add@frontmatter{ltx:date}[role=submitted]{#1}');
DefMacro('\journalinfo{}', '\@add@frontmatter{ltx:note}[role=journal]{#1}');
DefMacro('\keywordsname', 'Subject headings');
# Vertical analogs of llap, rlap
DefMacro('\ulap{}', '\hbox{#1}');
DefMacro('\dlap{}', '\hbox{#1}');
Let('\tabcaption', '\caption');
DefMacro('\format@title@section{}',    '\@tag[][.\space]{\thesection}#1');
DefMacro('\format@title@subsection{}', '\@tag[][.\space]{\thesubsection}#1');
DefMacro('\format@title@figure{}',     '\@tag[][.\@@emdash\space]{\fnum@figure}#1');
DefMacro('\format@title@table{}',      '    \@tag{\fnum@table}#1');
# #======================================================================
1;
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