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Re: [xsl] comparing sequences that contain more than one of the same item

2008-02-22 08:51:59
On 22/02/2008, Ronan Klyne <ronan(_dot_)klyne(_at_)groupbc(_dot_)com> wrote:
 > matches('hello', 'a?e?f?m?r?r?')"
 >
 > returns true, which suggests the regex needs work... but I don't know
 > regex's well enough to correct it.
 >
 >


Add a caret and a dollar to mark the beginning and end of the string,
 otherwise it's allowed to match a zero length substring

 matches('ehllo', '^a?e?f?m?r?r?$')

aha - well done Ronan!

I've now implemented Mike's solution and it performs about the same as
the recursive function approach (ignoring the pre-process step of
sorted the words in the word list)...



cheers
-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/

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