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From: | Peter Dyballa |
Subject: | Re: string-match bug? |
Date: | Tue, 8 Dec 2009 12:31:16 +0100 |
Am 08.12.2009 um 11:50 schrieb Andreas Röhler:
Barry Margolin wrote:In article <mailman.12469.1260221021.2239.help-gnu-emacs@gnu.org>, Matthew Dempsky matthew dempsky wrote: Here's another example of a limit case:(string-match "a*" "b") returns 0, because a* matches zero or more a's,and there are zero a's at position 0.Hmm, interesting IMHO that differs:(string-match "a*" "b") asks for a non-occurrence too. So "0" of first position is plausible.
Aren't the regular expressions "" and "a*" equivalent in that respect that they both also match the empty string?
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