- From: Romain Deltour <rdeltour@gmail.com>
- Date: Tue, 8 Jun 2010 08:59:36 +0200
- To: xproc-dev@w3.org
Ah, I see... many thanks for the clarification! Do you know the rationale behind the decision to not bind variables/ options to steps XPath context ? Thanks, Romain. Le 8 juin 10 à 08:18, <Toman_Vojtech@emc.com> <Toman_Vojtech@emc.com> a écrit : > Romain, > > I believa that both Calabash and Calumet behave correctly. The > group-adjacent XPath expression (after its value is constructed by the > XProc processor) is passed to and evaluated by the XProc *step*. If > you > look at section 2.6.1.2, where the "step XPath context" is discussed, > you will see that no variable bindings are defined in the step context > (unless otherwise specified by specific steps - see for instance > p:label-elements). > > See section 2.6 in the specification for a brief discussion of the > difference between the processor XPath context and the step XPath > context. > > Regards, > Vojtech > > -- > Vojtech Toman > Principal Software Engineer > EMC Corporation > toman_vojtech@emc.com > http://developer.emc.com/xmltech > > >> -----Original Message----- >> From: xproc-dev-request@w3.org [mailto:xproc-dev-request@w3.org] On > Behalf Of >> Romain Deltour >> Sent: Friday, June 04, 2010 11:54 PM >> To: xproc-dev@w3.org >> Subject: XPath context of p:wrap-sequence/@group-adjacent >> >> Hi XProc-ers, >> >> Should the in-scope variables and options be available as variable >> binding in the XPath context when evaluating the @group-adjacent >> expression of a p:wrap-sequence step ? >> >> The spec says: "The XPath context for the group-adjacent option >> changes over time. For each document that appears on the source port, >> the expression is evaluated with that document as the context >> document. The context position (position()) is the position of that >> document within the sequence and the context size (last()) is the >> total number of documents in the sequence." >> >> but nothing is said about in-scope options and variables... I then >> assume that they should be available (as per the general description >> of XPath context in XProc). >> >> The following pipeline raises XPathExceptions in both Calabash and >> Calumet, which (as far as I understand) would be a bug: >> >> <p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="1.0"> >> >> <p:input port="source" sequence="true"> >> <p:inline> >> <doc/> >> </p:inline> >> <p:inline> >> <doc/> >> </p:inline> >> </p:input> >> >> <p:variable name="myvar" select="2"> >> <p:empty/> >> </p:variable> >> <p:wrap-sequence wrapper="wrapper" group-adjacent="position() = >> $myvar"/> >> <p:sink/> >> >> </p:declare-step> >> >> Thanks, >> Romain. >> > >
Received on Tuesday, 8 June 2010 07:00:11 UTC