ikegami's second regular expression will still do what you want.

This only allows the characters a-z (upper and lower case) for the file name and an extension of 3 of the same characters. No spaces allowed, no weird characters.
My recommendation is to use this one.

Also, for general questions on regex, take a look at perlre. This will answer many of your questions and broaden your overall understanding of regular expressions.

In reply to Re^4: Regular Expression Help by thedoe
in thread Regular Expression Help by Anonymous Monk

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