On 23-Oct-98 Jean-Marc Lasgouttes wrote:
>>>>>> "Jose" == Jose Abilio Oliveira Matos <[EMAIL PROTECTED]>
>>>>>> writes:
>
> Jose> My proposal regards the problem that we have deciding if some
> Jose> structure (inset) allows other insets as childs or not? Do you
> Jose> understand, now? (It was my fault if I was not clear before :)
>
> Sorry, I only replied to one part of youer post. I really do not know
> much about dtd:s. So I cannot really tell whether they are
> easy/convenient to implement/use... In the same vein, we could replace
> textclasses with CSS. But this would require way too much work.
>
> JMarc
The comparison is fair, but as you notice our textclass already have a css
style, so why to change? :)
We still miss the information about the struture, here you must agree with
me.
Regarding how difficult it would be to construct the dtd parser, I have
asked that to Cees de Groot, SGML maintainer, his answer follows:
----------------------------------- begin answer -----------------------------
Hi Jose,
> One answer is: read the dtd yourself. But howto do it in an automatic way?
> That's one of my major concerns now, do you have any idea of how this is
> done in (professional) sgml editors?
>
Well, you need a DTD parser as you guessed. You may try to learn a bit of
Elisp if you don't know it already and try to take psgml.el apart, because
this does the same thing.
The long answer: use lex and yacc (or something else) to build a DTD parser.
The parsed form would probably naturally fit in the format of a tree, and
then it's a matter of bookkeeping (keep note about where you are in the tree,
and make sure the user only selects tags from children of the current node).
--------------------------------- end answer --------------------------------
Does this appeals to any of our parser experts? :)
Probably with the advent of XML there will be more parsers like this.
--
Jos� Ab�lio de Oliveira Matos
Date: 23-Oct-98 : Time: 09:26:45 GMT
The early bird who catches the worm works for someone who comes in late
and owns the worm farm.
-- Travis McGee
