/usr/share/perl5/LaTeXML/Package/alltt.sty.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 | # -*- mode: Perl -*-
# /=====================================================================\ #
# |  alltt                                                              | #
# | 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.     | #
# |---------------------------------------------------------------------| #
# | 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;
#**********************************************************************
DefEnvironment('{alltt}', "<ltx:verbatim font='#font'>#body</ltx:verbatim>",
  font => { family => 'typewriter', series => 'medium', shape => 'upright' },
  beforeDigest => sub {
    map { AssignCatcode($_ => CC_OTHER) } '$', '&', '#', '^', '_', '%', '~';
    AssignCatcode(" " => 13);
    Let(T_ACTIVE(" "), '\space');
    AssignValue(PRESERVE_NEWLINES => 1);
    # \@noligs: This SHOULD inhibit ligature substitution! (eg quotes, dots, etc!!!)
    # \frenchspacing\@vobeyspaces
  });
#**********************************************************************
1;
 |