Subject: The Flow Object Tree as a diagnostic tool (Was: Has any one...???) From: "G. Ken Holman" <gkholman@xxxxxxxxxxxxxx> Date: Tue, 14 Oct 1997 14:06:28 -0400 |
At 12:26 97/10/14 -0500, Vu Nguyen wrote: > But, on DSSSL Standard specs, the paragraph flow object has those >characteristics... for line-numbers and stuffs... so wouldn't the RTF >backend just be modified to suported this??? While James has worked very hard to produce a super system, he is cracking the tough nuts first ... I suspect this isn't considered a difficult problem and it is left to those volunteers who have the time to contribute to the effort by modifying JADE and sending candidate code his way for incorporation. I don't mean to put words in James' mouth, but if anyone can contribute by helping him out this way, I'm quite sure he would appreciate it. He has invited people to contribute on his "jade.htm" page. I deduced that JADE was incomplete in this area by the following steps. I created a test script to illustrate line-numbers since I hadn't had a need to use the feature before and your posting made me curious. When I, too, could not get line numbers to work I examined the flow object tree created by JADE to see if there was anything to learn (James told me of this technique a number of months ago when I embarrassed myself by claiming something that wasn't actually true and was obviously not true had I taken the time to examine the flow object tree; my problems were entirely in my DSSSL programming). Looking at the flow object tree for the example I created for you, I saw that while the information for the line-number-side: and line-number-sep: characteristics was present, the information for the line-number: characteristic was not present. My quick posting was based on seeing the first couple of characteristics ... it was only later when I realized the third characteristic wasn't there. This led me to the conclusion that it is JADE that needs to be completed in this area and not the RTF backend (though it, too, may not be complete). Then again, I may have not specified line numbers correctly, but this is how I read the standard today. I highly recommend this technique as a diagnostic tool when a DSSSL program doesn't work as it shows you what you asked JADE to produce in the flow object tree (not what you may have thought you asked to be produced!). .............. Ken F:\FTEMP>type test.dsl <!DOCTYPE style-sheet PUBLIC "-//James Clark//DTD DSSSL Style Sheet//EN"> (define debug (external-procedure "UNREGISTERED::James Clark//Procedure::debug")) (element doc (process-children)) (element para (make paragraph space-before: 10pt (process-children))) (element monospc (make paragraph font-family-name: "Courier New" lines: 'asis line-number: (make sequence font-posture: 'italic) line-number-side: 'start line-number-sep: .25in (process-children))) ; end of file F:\FTEMP>type test.sgm <!DOCTYPE doc [ <!ELEMENT doc - O ( para | monospc )+> <!ELEMENT para - O ( #PCDATA )> <!ELEMENT monospc - - RCDATA> ]> <doc> <para>First para <monospc>A line Another line Third line Fourth line </monospc> <para>Second para F:\FTEMP>jade -c l:\jade\current\catalog -t fot -d test.dsl test.sgm F:\FTEMP>type test.fot <!doctype fot public "-//James Clark//DTD DSSSL Flow Object Tree//EN"> <element index=0 rule-element> <element index=1 rule-element> <paragraph space-before.min=10000 space-before.nominal=10000 space-before.max=10000> <chars> First para </chars> </paragraph> </element> <element index=2 rule-element> <paragraph font-family-name="Courier New" lines=asis line-number-side=start line-number-sep=18000> <chars> A line </chars> <chars> Another line </chars> <chars> Third line </chars> <chars> Fourth line </chars> </paragraph> </element> <element index=3 rule-element> <paragraph space-before.min=10000 space-before.nominal=10000 space-before.max=10000> <chars> Second para </chars> </paragraph> </element> </element> F:\FTEMP> F:\FTEMP> -- G. Ken Holman mailto:gkholman@xxxxxxxxxxxxxx Crane Softwrights Ltd. http://www.CraneSoftwrights.com 1605 Mardick Court, Box 266, V: +1(613)489-0999 Kars, Ontario CANADA K0A-2E0 F: +1(613)489-0995 PGP Privacy: http://www.cyberus.ca/~holman/gkholman.pgp Training: http://www.CraneSoftwrights.com/schedule.htm DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
Re: Has any one...???, Vu Nguyen | Thread | Jade and display-space, Alex Milowski |
Re: : tables html dsssl column widt, Dave Love | Date | Re: entity representation in RTF, Chris Maden |
Month |