Postgresql Invalid Class For [:^punct]

Having read the answer in the Remove all punctuation except apostrophes in R post, I tried to use

'[[:space:]]|[^\/[:^punct:]]'

in REGEXP_REPLACE function, but it gives me

[2201B] ERROR: invalid regular expression: invalid character class

How can I make it work?

The question you link to is tagged with r, where stringr library uses ICU regex flavor that supports POSIX character classes in its own way, not necessarily POSIX compatible.

To match any whitespace or any punctuation but / you may use

[^/[:alnum:]]

It matches any char that is not alphanumeric (and that means it is either a whitespace or punctuation) and not a / char.