Cart
[Home] [By Thread] [By Date] [Recent Entries]
At 18:39 13/01/98 -0500, Tyler Baker wrote: > > >Steven Ball wrote: > >> >> I have done this as part of my TclXML package - an XML generator. >> The generator takes a XML DTD and creates a Tcl command for each element >> and entity. A Tcl script then calls these commands, nested to reflect the >> resultant document's structure, with appropriate arguments for attributes, >> to produce an XML document. >> [Haven't seen the full posting... has TclXML been announced?] > > Looked at it briefly and seemed like a great tool for webmasters and web >content developers, but I am doing work for a standalone application so that is >why I need to do this within Java only. Tcl is a great language for this sort of thing. Joe English wrote CoST in tcl and I added a tk GUI (costwish) which took exactly this approach. (I even used colonized names :-). I miss the ability in Java to add scripts/commands to elements "in clear". The JUMBO approach is to create a Java class for each element (or the subset that I don't want default processing for) and to point to this class (bytecode) using a schema file (using the prototypic namespace ideas in the public domain). Example: <?xml:namespace href="jumbo/play/schema.xml" as="PLAY"?> points <PLAY:STAGEDIR> to the PLAY namespace. Within the schema file is something like: ... <ELEMENT NAME="STAGEDIR"> <HELP>... lots of lovely XML-structured help ...</HELP> <JAVA>jumbo.play.STAGEDIRNode.class</JAVA> <ICON>jumbo/play/stagedir.gif</ICON> </ELEMENT> Of course I make this up as I go along, and I hope that there will be some public confluence of approaches here :-). The software is then able to: - recognise PLAY:STAGEDIR as belonging to a schema. - find the icon and draw a pretty picture - locate the help tree under a help icon - load the STAGEDIRNode class. This class overrides some or all methods such as process(), display(), toString(), toSGML(), drawUnscaledObject(Graphics), editContent(), editAttributes(). etc. (Of course editContent() is a no-op for PLAY :-) If the document contains a single namespace, but does not have colonized names, or has colonized names and non-colonized names I have a fudge which works quite nicely but probably shouldn't be publicly posted :-) or it might make some people ill. P. BTW I shall be releasing a new snapshot of JUMBO with this feature before Feb 4 (that's a deadline). Peter Murray-Rust, Director Virtual School of Molecular Sciences, domestic net connection VSMS http://www.nottingham.ac.uk/vsms, Virtual Hyperglossary http://www.venus.co.uk/vhg xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
|
