Finding '.' with string.find()

Question

I\'m trying to make a simple string manipulation: getting the a file\'s name, without the extension. Only, string.find() seem to have an issue with dots:

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Answer 1

The other answers have already explained what's wrong. For completeness, if you're only interested in the file's base name you can use string.match. For example:

string.match("crate.png", "(%w+)%.")  --> "crate"