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Talk:The OU PMatch algorithm

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word dividers default

I don't understand why it default to \s, not \W. PCRE word breaking assertions use \W to find word break.--Oleg Sychev 20:31, 12 December 2010 (UTC)

Mainly because that is backwards compatible with the previous implementation of Pmatch. And pmatch has evolved over the years based on what is most useful. Anyway, that is only a default.