Mid(s:Str, pos:Int, [count:Int]):Str

Substring extraction. Returns count characters from string s starting at position pos. If count is not specified, returns all characters from that position.

If any parameter is EMPTY, returns EMPTY.

See also: Left, Right, Elementary Functions

This is a testing version.
It may be incomplete, and have more bugs (or features) than the public live version at planetscentral.com.