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निरंजन
I want to redefine few commands from package TIPA. Those are always supposed to be enclosed in `\textipa{}` command. The commands that I want to redefine are as follows -

```
\documentclass{article}
\usepackage{tipa}

\begin{document}
\textipa{\r*m}
\textipa{\v*s}
\textipa{\"*b}
\textipa{\~*a}
\textipa{\|~{i}}
\end{document}
```

These are the shorthand commands in package TIPA, but I couldn't find anything in `tipa.sty` that defines these shortcuts. How are these shortcuts defined and how to redefine them is the question that I have.
Top Answer
Skillmon
As already mentioned in my comment, these commands are defined with `\DeclareTextCommand` inside of `t3enc.def`. If you want to change them you have to first undefine the existing text command and then declare your own definition:

```
\UndeclareTextCommand{\r}{T3}
\DeclareTextCommand{\r}{T3}[0]{<your new definition>}
```

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