^[0-9a-f] also triggers on Upper case?

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^[0-9a-f] also triggers on Upper case?

Postby Uncle_Guido » Thu Jan 14, 2021 11:05 am

I'm trying to block headers that start with a digit or a lower case a-f.
But when i try this: ^[0-9a-f] it also rejects Upper case A-F.
What am i doing wrong?
Thx, Uncle Guido
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Re: ^[0-9a-f] also triggers on Upper case?

Postby Quade » Thu Jan 14, 2021 11:36 am

Yeah the RE engine is set to "caseless".

If you're trying to filter obscured posts, setting a length helps. I use

"[0-9-a-z]{32}" to require it to be at least 32 obscured letters with no spaces.
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