Re: case-insensitive string comparison

[Sam Steingold]

> * Mattias Engdegård <znggvnfr@npz.bet> [2022-07-19 20:06:50 +0200]:
>
> 19 juli 2022 kl. 19.27 skrev Sam Steingold <sds@gnu.org>:
>
>> (defun string-equal-ignore-case (s1 s2)
>
> What would you tell someone complaining that
>
>   (let ((rue "Straße"))
>     (string-equal-ignore-case rue (upcase rue)))
>
> returns nil? Asking for a friend.

This is a well-known bug in user code.
https://stackoverflow.com/q/319426/850781

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