Hi,
I have a question about relative performance of comparable regular expressions.
I have large log files that start with three letters month names (non-unicode).
Which would give better performance, matching with "^[a-zA-Z]{3}", or with
"^\S{3}" ?
Also, which is better (if different at all): "\d\d" or "\d{2}" ?
Also, would matching "." be different (performance-wise) than matching the
actual character, e.g. matching ":" ?
And lastly, at the end of a line, is there any performance difference between
"(.+)$" and "(.+)"
Thanks,
Ron.
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