Remove parenthesis (and add period) from gb4e examples

Question

I'm using the gb4e package to number my linguistic examples, cf. the example below.

\documentclass{article}
\usepackage{gb4e}
\begin{document}
\begin{exe}
    \ex
    \gll Dies ist ein Beispiel\\
    This is an example\\
\end{exe}
\end{document}

A style sheet I am following requires the numbers to appear as 1. rather than (1), but I'm not able to find anything the gb4e documentation that helps me figuring out how to properly redefine this.

Answer 1

There's no interface for changing it, unfortunately.

\documentclass{article}
\usepackage{gb4e}
\usepackage{etoolbox}
\makeatletter
\patchcmd\@exe
  {(\thexnumi)}
  {\thexnumi.}
  {}{}
\makeatother
\begin{document}
\begin{exe}
    \ex
    \gll Dies ist ein Beispiel\\
    This is an example\\
\end{exe}
\end{document}

Note. (\thexnumi) is the only place in gb4e.sty that contains parentheses surrounding variable data.