Subject: Re: Jade and display-space From: lex@xxxxxxxxxxxxxx (Alex Milowski) Date: Thu, 23 Oct 1997 11:02:35 -0500 (CDT) |
> Alex Milowski wrote: > > > > I don't see that Jade supports the display-space type. Am I wrong here? > > Yes. Ah ha! Good! I was hoping to be wrong! ;-) > > For example, the space-before property is suppose to have a value of > > type display-space. The current stylesheets for Jade use a quantity. > > > > Display spaces have different semantics than quantities. > > > > This is cause us problems in our DSSSL engine. > > > > What's the official word on this? > > >From the proposed TC (http://www.ornl.gov/sgml/wg8/document/1883.htm): > > > Defects in Clause 12: Style language > > > 12.5.4.1 > > > A length-spec should be allowed for any characteristic with a display-space type (just as a length is allowed > > for any characteristic with a length-spec type). Another *very important* change in the TC. Now, the parenthetical remark doesn't make much sense. Should that read "just as a display-space is allowed for any characteristic with a length-spec type"? The sentence associates an ability to exchange length-spec with display-space. If the parenthetical remark intends to associate a previously describe reversal of this--that is, that display-spaces are allowed for length-specs--it should state so more clearly and refer to the specification of such a ability. In any event, the parenthetical remark is not clear. The information before it is very clear. > > This is what Jade implements. > Another nit-pick, but, this document is a proposed TC for DSSSL. Doesn't this mean that Jade, Seng, and others who adopt this TC are out of sync with the official standard. If the TC changes, we are then conformant to something that is *not* DSSSL and not the revised DSSSL. For compatibility sake, how "hard-line" should all DSSSL implementors be? For example, I would like the ability for stylesheets to be exchanged between Jade and Seng. Unfortunately, there are already application extensions that are not support in Seng that exist in Jade. Although someone could add these to Seng, they do not exist at the current time. Hence, given a stylesheet that does not take advantage on processor specific external procedures or application flow objects, how do we ensure that between "feature sets" and the TC that our environments can inter-operate? I suggest that we need a common core specification--maybe dsssl-o? ============================================================================== R. Alexander Milowski http://www.copsol.com/ alex@xxxxxxxxxx Copernican Solutions Incorporated (612) 379 - 3608 DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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