Undefined commands in langsci-textipa

[kopeckyf]

When langsci-textipa.sty is loaded in a minimal langscibook document, these commands are reported as undefined:

l.48 \renewcommand{\textepsilon}
                                {ɛ}
l.55 \renewcommand{\textgamma}
                              {ɣ}
l.115 \renewcommand{\textrho}
                             {ρ}
l.155 \renewcommand{\textsigma}
                               {}

This also happens in some live book projects. It looks a bit odd that \textsigma has an empty definition.

[Glottotopia]

the \text... provided by a TL installation seem to change between installations. Which installation are you reporting on? As a result, some \renewcommand{}s complain.

As for \textsigma, it is true that {} is wrong. The question is which of the two sigmas should be the standard one.

[kopeckyf]

I'm seeing this on TeX Live 2020, XeLaTeX version 3.14159265-2.6-0.999992

[Glottotopia]

On my computer, the following document does not produce any error:

\documentclass{langscibook}
\usepackage{langsci-textipa}
\begin{document}
a
\end{document}

[XeTeX 3.14159265-2.6-0.999992]

[kopeckyf]

Did you try it in tests/book-main.tex? That's where I see the error (among other places)

[Glottotopia]

again, can't reproduce. Maybe you have an old copy of langsci-lgr.sty in your working directory?

[kopeckyf]

General comment: In the future, we could see whether the recently released package tipauni provides a better solution for TIPA typesetting. tipauni is a parser on TIPA input that produces Unicode glyphs instead of the T3 font encoding.