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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Regular expression /s whitespace : Which whitespac
 The regular expression syntax used in XPath 2.0 is defined by the XML Schema Recommendation, as amended by XQuery/XPath2.0 Functions and Operators. See http://www.w3.org/TR/xmlschema-2/ especially Appendix F, Regular Expressions and http://www.w3.org/TR/xpath-functions/ 7.6.1 Regular Expression Syntax If you dig into these (especially the first) you'll find that \s is equivalent to [#x20\t\n\r], which is to say the space character, the tab character, the newline, or the return. This is consistent with XML's general notion of what constitutes whitespace, for example as used inside tags or declarations (see the XML Rec). Note that the non-breaking space character is not in this set. It's tricky what a "word" should be defined to be ... whether a word count is properly derivable from an analysis of whitespace (or whitespace plus punctuation) is arguable, but for most purposes it's usually considered good enough, at any rate for English, especially considering the alternatives. (For example, out on the edge, if you ever have em-dashes or even "--" hyphen pairs, without extra whitespace--like this--as is sometimes seen--you'll count "words" like "whitespace--like".) I hope that helps, Wendell At 05:57 PM 4/20/2006, you wrote: I am using count(tokenize(lower-case(.),'(\s|[,.!:;])+')[string(.)]) -a technique I retrieved from the list for counting words. I have been questioned about the regular expression that is being used to find white spaces. The content can contain many kinds of whitespaces and i am being asked to defend using this expression to find words. Does the saxon 8b interpretation of this regular expression covers as whitespaces ====================================================================== Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx Mulberry Technologies, Inc. http://www.mulberrytech.com 17 West Jefferson Street Direct Phone: 301/315-9635 Suite 207 Phone: 301/315-9631 Rockville, MD 20850 Fax: 301/315-8285 ---------------------------------------------------------------------- Mulberry Technologies: A Consultancy Specializing in SGML and XML ====================================================================== 
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