- From: Norman Walsh <ndw@nwalsh.com>
- Date: Wed, 25 Apr 2007 12:06:24 -0400
- To: public-xml-processing-model-wg@w3.org
- Message-ID: <87647kfngf.fsf@nwalsh.com>
/ Jeni Tennison <jeni@jenitennison.com> was heard to say: | Let me take another tack. Take as a starting point an XSLT 2.0 step: | | <p:xslt2> | <p:input port="stylesheet"> | <p:document href="foo2html.xsl" /> | </p:input> | <p:option name="initial-mode" select="$view" /> | <p:import-parameter name="*" /> | </p:xslt2> | | Let's say that we want to provide an easier interface to calling the | foo2html.xsl stylesheet, and wrap it in a pipeline. Currently, this | has to be: | | <p:pipeline name="my:foo2html"> | <p:input port="source" /> | <p:output port="result" /> | <p:parameter name="initial-mode" required="yes" /> | <p:parameter name="*" /> | <p:xslt2> | <p:input port="stylesheet"> | <p:document href="foo2html.xsl" /> | </p:input> | <p:option name="initial-mode" value="$initial-mode" /> | <p:import-parameter name="*" /> | </p:xslt2> | </p:pipeline> | | and I replace my original <p:xslt2> with: | | <my:foo2html> | <p:parameter name="initial-mode" select="$view" /> | <p:import-parameter name="*" /> | </my:foo2html> | | I had to make three changes here: change the name of the step (as | expected), remove the <p:input> (as expected), and change the | <p:option> to <p:parameter> (as completely unexpected). And with your proposal it would have been this, right? <p:pipeline name="my:foo2html"> <p:input port="source" /> <p:output port="result" /> <p:option name="initial-mode" required="yes" /> <p:xslt2> <p:input port="stylesheet"> <p:document href="foo2html.xsl" /> </p:input> <p:option name="initial-mode" value="$initial-mode" /> <p:import-parameter name="*" /> </p:xslt2> </p:pipeline> and I replace my original <p:xslt2> with: <my:foo2html> <p:option name="initial-mode" select="$view" /> <p:import-parameter name="*" /> </my:foo2html> (And actually, I think the import-parameter is either unnecessary or not allowed but let's come back to that another time.) | By comparison, if <p:parameter> is reserved for passing parameters | into stylesheets (and other components that require arbitrary | name/value pairs) then I only have to make the expected changes in the | call in the original pipeline, and I don't end up with naming clashes. The downside becomes that you can't compute the values of either options or parameters from the values of other parameters. Be seeing you, norm -- Norman Walsh <ndw@nwalsh.com> | My problems start when the smarter http://nwalsh.com/ | bears and the dumber visitors | intersect.--Steve Thompson, wildlife | biologist at Yosemite National Park
Received on Wednesday, 25 April 2007 16:06:59 UTC