Restrictions in std.regexp?

[Olaf Pohlmann]

Hi,

the documentation of std.regexp is somewhat sparse, so I tried to find 
out a few things on my own. There seems to be no way to do lookaheads 
and lookbehinds. This:

	RegExp re = search("ABCDEF", "(?<=AB)CD(?=EF)");

should find "CD" as a match, but it yields a runtime error:

	Error: *+? not allowed in atom

Is there any other way to get this working or am I just out of luck with 
the current implementation?



op