Custom URI regular expression

Question

I would like to restrict access to my site using a custom URI regular expression.

I would like to allow access for such URIs:

https://example.com/item/page/2/?wpv_view_count=258
https://example.com/item/page/3/?wpv_view_count=258

and restrict content for such URIs:

https://example.com/item/snv00001-indice-di-documenti/
https://example.com/item/sa00068-libro/
https://example.com/item/aud00068-audio/

I need to provide the restrict content URI regex

Answer 1

Based on the info in the question you want to match everything except requests which start with /item/page/ so:

/item/(?!page/).+

That is:

/item/  # literal string
(?!     # Begin negative lookahead
  page/ # literal string
)       # End negative lookahead
.+      # 1 or more characters

A negative lookahead is a zero-length match - so the next bit of the regex .+ continues right after /item/.

Here's a demonstration: https://regex101.com/r/8T2ytg/1