The use case is here: http://www.w3.org/TR/xproc-requirements/#use-case-rss-descriptions Parsing descriptions looks like: <p:pipeline xmlns:p='http://www.w3.org/2006/XProc' xmlns:c='http://www.w3.org/2006/XProc/Components' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.w3.org/2006/XProc pipeline.xsd' xmlns:xhtml='http://www.w3.org/1999/xhtml' xmlns:t="http://www.smallx.com/Vocabulary/Services/Tideinfo/2005/1/0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <p:input name="feed"/> <p:output name="processed-feed" from="final"/> <!-- parse the children of the RSS description elements so that it can be processed with XML tools --> <p:for-each select="description" over="feed" to="iteration"> <p:output name="final" from="parse"/> <p:step kind="p:parse"> <p:input name="document" from="iteration"/> <p:output name="parse" from="result"/><!-- Note: the component names this --> <p:parameter name="type" value="html"/> <p:parameter name="children" value="true"/> <p:parameter name="default-namespace" value="http://www.w3.org/1999/xhtml"/> </p:step> </p:for-each> </p:pipeline> Escaping (serializing) descriptions looks like: <p:pipeline xmlns:p='http://www.w3.org/2006/XProc' xmlns:c='http://www.w3.org/2006/XProc/Components' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.w3.org/2006/XProc pipeline.xsd' xmlns:xhtml='http://www.w3.org/1999/xhtml' xmlns:t="http://www.smallx.com/Vocabulary/Services/Tideinfo/2005/1/0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <p:input name="feed"/> <p:output name="processed-feed" from="final"/> <!-- serialize the children of the description to be compliant with RSS --> <p:for-each select="description" over="feed" to="iteration"> <p:output name="final" from="serialize"/> <!-- serializes the children into a text node --> <p:step kind="p:serialize"> <p:input name="document" from="iteration"/> <p:output name="serialize" from="result"/><!-- Note: the component names this --> <p:parameter name="children" value="true"/> </p:step> </p:for-each> </p:pipeline> --Alex Milowski
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