Subject: DTD for customizable stylesheets From: Norbert Mikula <nmikula@xxxxxxxxxxxxxxxxx> Date: Fri Mar 28 10:20:18 1997 EST |
I took James' suggestion about how to have customizable stylesheets for DSSSL and extended it a bit. That's the outcome (DTD and example are XML, but SGML is pretty much the same). James, I think we ought to include this sub-DTD here : <!ENTITY % declarations "features | baseset-encoding | literal-described-char | add-name-chars | add-separator-chars | standard-chars | other-chars | combine-char | map-sdata-entity | char-repertoire | sgml-grove-plan" > What do you think ?. I am not an expert on architectural forms. So I am not sure how to approach this problem (if there is one....) This is only a first sketch. I am sure we also can include other aspects that you have mentioned, at a later point in time. ****** a possible scenario ****** <Customize> <Variable name="%visual-acuity%"> <Description Language="English">Visual Acuity</Description> <Description Language="Deutsch">Sehschaerfe</Description> <Value> <Description Language="English">Normal</Description> <Description Language="Deutsch">Normal</Description> <Content> normal </Content> </Value> <Value> <Description Language="English">presbyopic</Description> <Description Language="Deutsch">weitsichtig</Description> <Content> presbyopic </Content> </Value> </Variable> <Variable name="%page-width%"> <Description Language="English">Page width</Description> <Description Language="Deutsch">Seitenbreite</Description> <Value> <Type Class="Length"> <Description Language="English">Length Specification e.g. 8.5 in</Description> <Description Language="Deutsch">Laengeneinheit z.B. 14cm</Description> </Type> </Value> </Variable> </Customize> ******** and here is a draft DTD : ******** <!--* ==================================================== Customize : Define all elements that should be presented to the user as customizable variables ==================================================== *--> <!ELEMENT Customize (Variable)* > <!--* ==================================================== Variable : One customizable variable If no value specified, then any value will do ==================================================== *--> <!ELEMENT Variable (Description*,Value*) > <!--* ==================================================== Variable : ==================================================== Name : The name of the variable as it is used in the DSSSL style specification ==================================================== *--> <!ATTLIST Variable Name CDATA #REQUIRED > <!--* ==================================================== Value : One possible value of the variable ==================================================== *--> <!ELEMENT Value (Description*,(Content|Type)) > <!--* ==================================================== Type : A valid type ==================================================== *--> <!ELEMENT Type (Description)* > <!--* ==================================================== Type : ==================================================== Class : A list of valid types for that variable (possible values need to be discussed) ==================================================== *--> <!ATTLIST Type Class (String|Number|Length) #IMPLIED > <!--* ==================================================== Content : The actual content of the variable as it would be delivered to the DSSSL engine ==================================================== *--> <!ELEMENT Content (#PCDATA)* > <!--* ==================================================== Description : Description of a variable or possible value ==================================================== *--> <!ELEMENT Description (#PCDATA)* > <!--* ==================================================== Description : ==================================================== Language : The language that has been used in the description ==================================================== *--> <!ATTLIST Description Language CDATA #IMPLIED > Best regards, Norbert H. Mikula ===================================================== = SGML, DSSSL, Intra- & Internet, AI, Java ===================================================== = mailto:nmikula@xxxxxxxxxxxxxxxxx = http://www.edu.uni-klu.ac.at/~nmikula =====================================================
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