Subject: Transformation: data to attr val. From: "Maltby, David G" <david.g.maltby@xxxxxxxx> Date: Tue, 13 Jul 1999 07:45:46 -0700 |
I am doing transformations using jade -t sgml and am have some difficulty getting and using the contents of an element in the source document as an attribute value in the target document. For example if my source document is: <!DOCTYPE source [ <!ELEMENT source - - (version,text) > <!ELEMENT version - - (#PCDATA) > <!ELEMENT text - - (#PCDATA) > ]> <source> <version>1</version> <text>My text</text> </source> I would like it to be transformed to: <!DOCTYPE target [ <!ELEMENT target - - (version,text) > <!ELEMENT version - - (#PCDATA) > <!ATTLIST version num CDATA #REQUIRED > <!ELEMENT text - - (#PCDATA) > ]> <target> <version num=1></version> <text>My text</text> </target> However, using the following style-sheet: <!DOCTYPE style-sheet PUBLIC "-//James Clark//DTD DSSSL Style Sheet//EN" [ <!-- test getting content from source into attribute val. in target --> ]> ;;; --- required ----- (declare-flow-object-class element "UNREGISTERED::James Clark//Flow Object Class::element") ;;; ;;; -- root ------------------ (element SOURCE (make element gi: "target") ) ;;;------------------------ (element VERSION (make element gi: "version" attributes: '(("num" (data (current-node)))) ) ) ;;;------------------------ (element TEXT (make element gi: "text") ) Jade replies with a " invalid value for "attributes" characteristic " error. I have also tried to create a variable (my preference because I have to use this value elsewhere) and although the (define (*var*) ...) seems to get the value, using *var* or (literal (*var*)) as the second item in the list gives the same error. Stubbing in a hard value, such as "stub", runs fine and gives the expected results. I am stumped because "attributes" is looking for a list of list(s) of strings and I thought (data (current-node)) was providing that. I would deeply appreciate a pointer in the right direction. I am new to DSSSL and Scheme, but I am thrilled about the amazingly good things I have been able to accomplish. David Maltby IETM Team Lockheed Martin Missile and Space DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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