.net UrlEncode - lowercase problem

Question

I\'m working on a data transfer for a gateway which requires me to send data in UrlEncoded form. However, .net\'s UrlEncode creates lowercase tags, and it breaks the transfe

Answer 1

if anyone else gets here in search for perl code or a PCRE (perl-compatible regular expression) to solve the issue, a (candidate for the shortest possible) perl-expression to convert url-encoding to lowercase hex is:

s/%(\X{2})/%\L$1\E/go

and the other way around (lowercase to uppercase)

s/%(\x{2})/%\U$1\E/go