Use the correct reader when the filename has multiple periods.

[JohnAtl]

Reference issue

Fixes: Issue #11515

What does this implement/fix?

Uses the last .text to determine the reader if there are multiples periods in the filename.

Additional information

It looks like black reformatted the file. The only change relevant is to line 102 in the original file.

[welcome]

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[cbrnr]

I think this will not work for extensions such as .fif.gz, because you only take the last suffix. I have already solved this in MNELAB, but I forgot to update it here: https://github.com/cbrnr/mnelab/blob/main/mnelab/io/readers.py

To be honest, file names should not contain dots (periods), because they are reserved for file extensions (unfortunately, this is not enforced). I recommend to use - or _ as separation symbols in names.

[JohnAtl]

To be honest, file names should not contain dots (periods),

I agree, but researchers gonna research.
Perhaps matching the supported dictionary keys to the end of the filename string would be the way to go.

[cbrnr]

Right, we'd better be prepared for research-grade code 😆! As I've mentioned, I've already fixed this in MNELAB, so I copied that over and made a new PR in #11521. I hope this is OK with you when we close this PR in favor of mine?

[JohnAtl]

Very good. Thanks Clemens!

I found out these file come from a particular eeg system that inserts the periods in the filename.

Thanks again for the assist and fast response!