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Formalization of rule 80

From: Vicente Luque Centeno <vlc@it.uc3m.es>
Date: Sat, 25 Jun 2005 18:08:02 +0200 (CEST)
To: public-wai-ert@w3.org
Message-ID: <Pine.LNX.4.61.0506251801490.8175@violin.it.uc3m.es>

Hi,

Rule 80 [1] could be easily formalized saying:

//object[not(*)][string-length(normalize-text(text()))=0] = ()

PS: In other words, every object must have some children, otherwise some 
printable text.

PS2: There are over 60 formalized tests (using XPath and XQuery) at 
http://www.it.uc3m.es/vlc/wai/checks.xml .

[1] http://www.w3.org/WAI/GL/WCAG20/tests/test80.html

Vicente Luque Centeno
Dep. Ingeniería Telemática
Universidad Carlos III de Madrid
http://www.it.uc3m.es/vlc
Received on Saturday, 25 June 2005 16:08:07 GMT

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