Re: [xml2rfc-dev] RFC 7991 issue #37: Schema Issue, RFC 7991, In Section 2.12, <br>

[Jim Schaad <[e-mail]>]

> -----Original Message-----
> From: xml2rfc-dev <[e-mail]> On Behalf Of Henrik
> Levkowetz
> Sent: Wednesday, October 3, 2018 4:48 PM
> To: Julian Reschke <[e-mail]>; Paul Hoffman
> <[e-mail]>; [e-mail]
> Subject: Re: [xml2rfc-dev] RFC 7991 issue #37: Schema Issue, RFC 7991, In
> Section 2.12, <br>
> 
> On 2018-10-03 17:08, Julian Reschke wrote:
> > On 10/3/2018 2:53 PM, Henrik Levkowetz wrote:
> >> Hi Julian,
> >>
> >> On 2018-10-03 14:19, Julian Reschke wrote:
> >>> On 10/3/2018 2:13 PM, Henrik Levkowetz wrote:
> >>>> ...
> >>>> Yes, I've run that through the current text processor, and I
> >>>> particularly looked at it when working on table rendering.
> >>>>
> >>>> Where is it you need <br> to make this come out right?
> >>>
> >>> In the titles, at least if we want to reproduce what the RFC has.
> >>
> >> Thank you for that.  It provides much better understanding of the
> >> case which prompted the introduction of <br>.
> >>
> >> Now, the new v3 feature which cost absolutely most extra work to
> >> implement, by far, was the addition of table rowspan capability.
> >
> > I feel your pain.
> >
> >> If it really is imperative to break a column title in one particular
> >> place (and I agree it may be desirable) then why can't it be handled
> >> by using rowspan for the other header cells, and two cells for the
> >> particular column title that needs to be broken in a controlled manner?
> >
> > Example, please?
> 
> Umm?  Take the table you pointed at, give each header cell rowspan="2",
> except the cell(s) where you want a particular line break, and put the first part
> in the first cell and the second part in the second cell.
> 
> >> And second, why is this a concern in a column header, and not, for
> >> instance in the document title?
> >>
> >> This is the result of a too long document title today (an actual
> >> example as rendered by the v3 text renderer):
> >>
> >> ---
> >> Network Working Group                                       H. Levkowetz
> >> Internet-Draft                                              Elf Tools AB
> >> Intended status: Informational                            3 October 2018
> >> Expires: 6 April 2019
> >>
> >>
> >>         Implementation notes for RFC7991, "The 'xml2rfc' Version 3
> >>                                Vocabulary"
> >>             draft-levkowetz-xml2rfc-v3-implementation-notes-04
> >
> > In the past, we have worked around that by using non-breaking spaces
> > where we want to keep things together. I doubt that the same approach
> > would work well in narrow table cells...
> 
> Why not?  There's no mathematical difference between the two cases.
> 
> >> ...
> >>> That is true, but I'm prepared to argue that if they want to enforce
> >>> a line break in running text, they are doing something wrong.
> >>
> >> But can we be so sure of that, that it's right to enforce the current
> >> limitation?  Had you thought of the case of a document title, above?
> >
> > Yes.
> 
> Ok, good.  In that case I really don't understand why <br> wasn't provided for
> document titles (and section titles, too, where I've also come across similar
> issues for long titles).
> 
> >> Might there not be other cases?  Maybe it would be better to permit
> >> it, and maybe (at least in some cases) issue a warning?
> >
> > Or we can wait for this to become an issue.
> 
> No, the chance we have to get this right is now.  We have a first iteration, and
> thanks for all the work that went into it, but let's now polish it based on explicit
> experience, to make it even better.
> 
> > We *could* analyze the set of RFC XML source documents for where
> > vspace is currently used.
> 
> Yes, that would provide additional meaningful data.

I have a vague memory that Tony did look at this so it might be on the old discussion group list.

Jim

> 
> 
> Best regards,
> 
> 	Henrik