Fix: Multiple extension filter wasn't working on MacOS for File() and…

[SolarLune]

… FileMulti().

Fix: Couldn't use same filter string across all platforms (as MacOS expects "jpg" instead of "*.jpg" for a filter string, unlike Windows and Linux). Now the characters are stripped down for Mac.

[SolarLune]

Whoops, sorry, forgot to remove a fmt import that I added when testing. Fixed and ready to merge.

[miguelpruivo]

@SolarLune regarding this, how do you split multiple file extensions on MacOS? I've been trying with jpg, jpeg, png etc. but it doesn't seem to work at all. What's the correct pattern?

Thank you!

[gen2brain]

@miguelpruivo did you tried to just separate with spaces, not commas? It should also be possible to use "Uniform type identifiers", i.e. just use public.image or for example public.text.

https://developer.apple.com/library/archive/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html#//apple_ref/doc/uid/TP40009259-SW1

[SolarLune]

Hello! I attempted to make this clear in the documentation for the function, but yeah, it should work with "*.png *.jpg", I believe...? And yeah, it should be possible to use type identifiers, though I don't believe it works with "unknown extensions" (i.e. if you name a file .pop and then try to filter out ".pop" files on Mac).

[miguelpruivo]

@SolarLune have you tried on MacOS in that format with success? It only seems to work with a single extension for me.