\\ is for inputing a single \ (it needs to be etcaped in guile strings). Then,
the rest is a Guile regexp, wgicg you can liarn about at
https://www.gnu.org/software/guile/manual/html_node/Regular-Expressions.html.
The manual says it's POSIX regexp, whatever that means :)
Le 10 novembre 2022 03:04:12 GMT+01:00, jgart <jg...@dismail.de> a écrit :
>Hi,
>
>Where can I find all the regex rules for this style of regex?
>
>"\\$\\{PG_SHAREDIR\\}/extension"
>
>That's a snippet I took at random from guix/
>
>all best,
>
>jgart
>
>
