<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">% -*- mode: tex -*-
%-
% Copyright © 2017, 2018
%	mirabilos &lt;m@mirbsd.org&gt;
%
% Provided that these terms and disclaimer and all copyright notices
% are retained or reproduced in an accompanying document, permission
% is granted to deal in this work without restriction, including un‐
% limited rights to use, publicly perform, distribute, sell, modify,
% merge, give away, or sublicence.
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% This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
% the utmost extent permitted by applicable law, neither express nor
% implied; without malicious intent or gross negligence. In no event
% may a licensor, author or contributor be held liable for indirect,
% direct, other damage, loss, or other issues arising in any way out
% of dealing in the work, even if advised of the possibility of such
% damage or existence of a defect, except proven that it results out
% of said person’s immediate fault when using the work as intended.
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% This file is dual-licenced under the LPPL version 1.3c or later.
%-
% Improve error and warning formatting. Fully submitted upstream.

%: https://github.com/latex3/latex2e/pull/62
\ifx\UTFviii@hexbyte\@undefined%
 % format a number as two-digit hex
 \def\UTFviii@hexbyte#1{%
  \ifnum#1&lt;16 0\fi%
  \UTFviii@hexnumber{#1}%
 }%

 % override message to give the byte in hex
 \def\UTFviii@invalid@err#1{%
  \PackageError{inputenc}{Invalid UTF-8 byte "\UTFviii@hexbyte{`#1}}%
   \UTFviii@invalid@help%
 }%
\fi%

%: https://github.com/latex3/latex2e/pull/63
\ifx\UTFviii@hexcodepoint\@undefined%
 % format a number as Unicode codepoint hex
 \def\UTFviii@hexcodepoint#1{%
  \ifnum#1&lt;16 U+000%
  \else\ifnum#1&lt;256 U+00%
  \else\ifnum#1&lt;4096 U+0%
  \else\ifnum#1&lt;65536 U+%
  \else\ifnum#1&lt;1048576 U-000%
  \else U-00%
  \fi\fi\fi\fi\fi%
  \UTFviii@hexnumber{#1}%
 }%

 % override message to format the codepoint correctly
 \gdef\UTFviii@splitcsname#1:#2\relax{%
  #2 (\expandafter\UTFviii@hexcodepoint\expandafter{%
   \the\numexpr\decode@UTFviii#2\relax})%
 }%
\fi%

%: https://github.com/latex3/latex2e/pull/62
% split an invalid byte sequence for output
\ifx\UTFviii@splitseq\@undefined%
 \gdef\UTFviii@splitseq#1:#2\relax{%
  \UTFviii@hexseq#2\relax%
 }%
 \gdef\UTFviii@hexseq#1#2\relax{%
  % display first octet
  \space "\UTFviii@hexbyte{`#1}%
  % recursively handle remaining octets
  \ifx\relax#2\relax\else\UTFviii@hexseq#2\relax\fi%
 }%
\fi%
</pre></body></html>