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Re: Regular expression functions (Was: Re: comments on

Subject: Re: Regular expression functions (Was: Re: comments on December F&O draft)
From: David Carlisle <davidc@xxxxxxxxx>
Date: Wed, 9 Jan 2002 12:37:23 GMT
Re: Regular expression functions (Was: Re:  comments on
Mike
>This is because although schema
>specifies that the regexp must match the whole string, xf:match() in effect
>tests the regexp against every substring of the supplied string and returns
>a list of those substrings that match. 

oh so this suggests a different answer to my "overlapping matches"
question (in the message on the F&O document that I cross posted here
and to the query-commets list) than the one Jeni said I ought to
expect.... 

if the regexp is aa and the string is aaa, then your description would
suggest that aa gets matched against the substrings of aaa:

a
aa
aaa
 a
 aa
  a

and matches the 2nd and 5th of these, so returning (1,2).

David

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