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in reply to alternation in regexes: to use or to avoid?
- "Is this a recognized problem? Yes, see Athanasius', above.
- "Is it a problem at all? Yes, but not one that's apt to be resolved other than by careful choice among the alternate approaches.
- "Does it look like it needs to be reported as a bug? No; see 1 above
- Does this "mean that alterations with grouping should be avoided at all...?" Definitely not; sometimes the difference in speed is too small to make any difference; sometimes the clarity of one approach clearly outweighs any other issues; and sometimes other factors, like personal taste, can be allowed to determine. Just be sure to think carefully about which applies.
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