See how you get on with this? 

$s = "x|xx|xx|xxxx|xx|xxx|xx|xx|x";
$s =~ s[(x\|x)(x\|x)([x\|]*)][$1 $2$3]g;
print $s;
x|x x|xx|xxxx|xx|xxx|xx|xx|x

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Examine what is said, not who speaks.

The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

In reply to Re: A complex recursive regex,help by BrowserUk
in thread A complex recursive regex,help by OM_Zen

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