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negating character classes (Score:1)
[^[:alpha:]] <-alpha>
I expected <!alpha> -- is there a difference between <-alpha> and <!alpha>?
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Re:negating character classes (Score:1)
I think that <!alpha> can match nothing,
while <-alpha> can match only a non-alpha
character.
So the first can match a zero-length substring
while the second must match a one-character
substring.
-matt
Re:negating character classes (Score:1)
-matt