Sounds like you have 

s/\G \s* //xgc;  # Skip optional whitespace

[download]

when you should have 

s/\G \s+ //xgc;  # Skip optional whitespace

[download]

In reply to Re: Is there a way to allow consecutive zero-length matches without using pos()? by ikegami
in thread Is there a way to allow consecutive zero-length matches without using pos()? by jsm

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