Peter Hunsberger wrote: > Conal Tuohy <[EMAIL PROTECTED]> wrote: > > > Alfred Fuchs wrote: > > > > > in my expamle I extract the title of a HTML page in this way: if > > > <title> exist and <title> not empty, use it as title. > otherwise use > > > the first <h1> etc... this is logic, simply done in a xslt, > > but hoe to > > > do this in a single xpath-query? > > > > string(/html/head/title[normalize-space()]|/html/body//h1[1]) > > Except that will get both when both exists, which I don't > think is what > he wanted...
He should only get the title if the title exists: The first sub-expression "/html/head/title[normalize-space()]" defines a nodeset containing any non-whitespace title element. The second expression "/html/body//h1[1]" selects a nodeset containing the first heading 1. The | operator merges the 2 nodesets. The string() function returns the string value of the FIRST NODE in the resulting nodeset. Cheers! Con
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