Morning :-)

A dear friend of me asked me for a very special regular expression problem, which I tried to solve. It goes like this:
He needs to extract every character that resides between two x in a string. So that would make xaxlxfxixex -> alfie. Now the problem is, that it should also work with x inbetween. So I tried a little here and there, and the best I could came up with is the following: 

alfie:~$ perl -ne 'while (m/\G[^x]*?x(.)(?=x)/g) {print $1;}'
xaxbxcxdexfx
abc

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So, I am missing the f in the output... So, what happened here? I'm slightly confused. Thanks for any hint you can offer.
--
Alfie

In reply to special regexp by alfie

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