Unicode latin extended additional

[michael-roe]

Brief outline of the enhancement

utf8ienc.dtx defines a mapping from Unicode characters to latex characters, but it lacks mappings for the Latin Extended Additional block (except for a couple of characters), In particular, it lacks mappings for some characters that are used to write Sanskrit words in Latin transliteration (as seen in books about yoga, Buddhist philosophy etc).

These charcters need to be added:

\DeclareUnicodeCharacter{1E0D}{\d{d}}
\DeclareUnicodeCharacter{1E25}{\d{h}}
\DeclareUnicodeCharacter{1E37}{\d{l}}
\DeclareUnicodeCharacter{1E43}{\d{m}}
\DeclareUnicodeCharacter{1E45}{\.{n}}
\DeclareUnicodeCharacter{1E47}{\d{n}}
\DeclareUnicodeCharacter{1E5B}{\d{r}}
\DeclareUnicodeCharacter{1E63}{\d{s}}
\DeclareUnicodeCharacter{1E6D}{\d{t}}

Minimal example showing the current behaviour

\RequirePackage{latexbug}       % <--should be always the first line (see CONTRIBUTING)!
\documentclass{article}

\usepackage[utf8]{inputenc}


  % Any preamble code goes here

\begin{document}

ṅ n with dot above \\
ḍ d with dot below \\
ṭ t with dot below \\
ḷ l with dot below \\
ṛ r with dot below

  
\end{document}

[FrankMittelbach]

just as a side remark utf8 is the default in LaTeX for some time so the example should work without the line

\usepackage[utf8]{inputenc}