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Re: bug in stregex? [message #31526]

Fri, 19 July 2002 18:07

William Daffer
Messages: 34
Registered: February 1999

Member

Craig Markwardt <craigmnet@cow.physics.wisc.edu> writes:

> Vapuser <vapuser@catspaw.jpl.nasa.gov> writes:
>> I don't you, you tell me. Is this a bug?
>>
>> IDL> tt=stregex('cdefaz',"(.*)(a|b|c)z",/extract)
>> IDL> help,tt
>> TT STRING = 'cdefaz'
>>
>> My understanding of regular expressions says it's a bug. The first
>> '(.*)' should only match up to the 'a' and the second subexpression,
>> since it is *unqualified*, should handle the 'az', i.e. TT should
>> have two parts. tt[0] should be 'cdef' and tt[1] should be 'a.'
>
> Hi--
>
> Why don't you try the /SUBEXPR keyword? That seems to do the trick.
>

Well, duh! It's amazing what one can learn actually *reading* the
help file! ;-)

Thanks for pointing me to my rather obvious mistake.

whd
--
NOMINEE, n. A modest gentleman shrinking from the distinction of
private life and diligently seeking the honorable obscurity of public
office.
-- Ambrose Bierce: _The Devil's Dictionary_

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[Message index]

		Re: bug in stregex? By: William Daffer on Fri, 19 July 2002 18:07
		Re: bug in stregex? By: Craig Markwardt on Fri, 19 July 2002 15:16
		Re: bug in stregex? By: James Kuyper on Fri, 19 July 2002 14:53

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