Re: How to convert an arbitrary string into a filename

[Platon Pronko]

On 2023-04-26 11:55, Marcin Borkowski wrote:
> Hi all,
>
> given an arbitrary string, say "Hello, world!!!", I want to have
> a filename with all the runs of weird characters (that is,
> non-alphanumeric ones) converted to dashes (say, "Hello-world").  Is
> there a function for that in Emacs already or should I write my own?

Something like this?

(let ((input "Hello, world!!!"))
  (replace-regexp-in-string "[^a-zA-Z0-9]+" "-" input))
;; "Hello-world-"

--
Best regards,
Platon Pronko
PGP 2A62D77A7A2CB94E