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[Octave-bug-tracker] [bug #43649] strfind returns matches for empty patt
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From: |
Rik |
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Subject: |
[Octave-bug-tracker] [bug #43649] strfind returns matches for empty pattern |
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Date: |
Thu, 20 Nov 2014 23:16:10 +0000 |
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User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:33.0) Gecko/20100101 Firefox/33.0 |
Follow-up Comment #3, bug #43649 (project octave):
So, is the accepted wisdom that we should just change this for Matlab
compatibility, despite the way most other programs handle this?
Incidentally, the regexp function has the option 'emptymatch' to decide which
way to interpret an empty pattern.
octave:1> regexp ('foo', '', 'match')
ans = {}(1x0)
octave:2> regexp ('foo', '', 'match', 'emptymatch')
ans =
{
[1,1] =
[1,2] =
[1,3] =
[1,4] =
}
One way to look at this is that strfind is a Matlab function and they are free
to define how it behaves, while regexp should be more compatible with generic
regular expressions, which it is.
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