* Odd Behavior in pdftex/xetex
@ 2008-05-23 19:32 Michael.Urban
2008-05-23 20:29 ` Hans Hagen
0 siblings, 1 reply; 5+ messages in thread
From: Michael.Urban @ 2008-05-23 19:32 UTC (permalink / raw)
To: ntg-context
The following specimen was run on live.contextgarden.net with each of
the three typesetters:
\setupcolors[state=start]
\starttext
\input knuth
\bTABLE
\bTR [align=middle]\bTH Range\eTH{}\bTH Value\eTH{}\eTR
\bTR \bTD \type{<} 12\eTD{}\bTD 3\eTD{}\eTR
\bTR \bTD 12--16\eTD{}\bTD 2\eTD{}\eTR
\bTR \bTD \type{>}16\eTD{}\bTD 1\eTD{}\eTR
\eTABLE
\input knuth
\stoptext
In the case of pdfTeX and XeTeX, the table is given a width equal
to the textwidth; in the caes of LuaTeX, it is typeset correctly
with natural widths.
When \setupcolors is removed, both pdfTeX and XeTeX also produce
the correct result.
This sounds like a bug to me (and took me forever to isolate
\setupcolors - of all things! - as the culprit).
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: Odd Behavior in pdftex/xetex
2008-05-23 19:32 Odd Behavior in pdftex/xetex Michael.Urban
@ 2008-05-23 20:29 ` Hans Hagen
2008-05-24 6:58 ` Wolfgang Schuster
0 siblings, 1 reply; 5+ messages in thread
From: Hans Hagen @ 2008-05-23 20:29 UTC (permalink / raw)
To: mailing list for ConTeXt users
Michael.Urban@jpl.nasa.gov wrote:
> The following specimen was run on live.contextgarden.net with each of
> the three typesetters:
>
> \setupcolors[state=start]
> \starttext
> \input knuth
>
> \bTABLE
> \bTR [align=middle]\bTH Range\eTH{}\bTH Value\eTH{}\eTR
> \bTR \bTD \type{<} 12\eTD{}\bTD 3\eTD{}\eTR
> \bTR \bTD 12--16\eTD{}\bTD 2\eTD{}\eTR
> \bTR \bTD \type{>}16\eTD{}\bTD 1\eTD{}\eTR
> \eTABLE
>
> \input knuth
> \stoptext
>
>
> In the case of pdfTeX and XeTeX, the table is given a width equal
> to the textwidth; in the caes of LuaTeX, it is typeset correctly
> with natural widths.
>
> When \setupcolors is removed, both pdfTeX and XeTeX also produce
> the correct result.
>
> This sounds like a bug to me (and took me forever to isolate
> \setupcolors - of all things! - as the culprit).
actually it's the \type (combined with colors)
\dontleavehmode \type {xx}
works ok
probably some pdfliteral is playing havoc here so that the width analyer
cannot function well (a limitation of tex is that there's only a small
set subset of \un* and \last* node operations); if you see messages like
this
!!forced exit from shapebox 9!!
that is indeed the case. hoewver, in mkiv i use different trickery so
there we don't have this problem (we also use a different color
mechanism so that helps too)
it's not so much a bug in mkii as well as a side effect/limitation
okay, we could add \dontleavehmode to \type but i'm not sure if that
will not break other things; also, bTABLE is kind of tricky because it
needs to be clever with regards to text and non text and such
Hans
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: Odd Behavior in pdftex/xetex
2008-05-23 20:29 ` Hans Hagen
@ 2008-05-24 6:58 ` Wolfgang Schuster
2008-05-28 18:52 ` Michael.Urban
0 siblings, 1 reply; 5+ messages in thread
From: Wolfgang Schuster @ 2008-05-24 6:58 UTC (permalink / raw)
To: ntg-context
On Fri, 23 May 2008 22:29:06 +0200
Hans Hagen <pragma@wxs.nl> wrote:
> Michael.Urban@jpl.nasa.gov wrote:
> > The following specimen was run on live.contextgarden.net with each of
> > the three typesetters:
> >
> > \setupcolors[state=start]
> > \starttext
> > \input knuth
> >
> > \bTABLE
> > \bTR [align=middle]\bTH Range\eTH{}\bTH Value\eTH{}\eTR
> > \bTR \bTD \type{<} 12\eTD{}\bTD 3\eTD{}\eTR
> > \bTR \bTD 12--16\eTD{}\bTD 2\eTD{}\eTR
> > \bTR \bTD \type{>}16\eTD{}\bTD 1\eTD{}\eTR
> > \eTABLE
> >
> > \input knuth
> > \stoptext
> >
> >
> > In the case of pdfTeX and XeTeX, the table is given a width equal
> > to the textwidth; in the caes of LuaTeX, it is typeset correctly
> > with natural widths.
> >
> > When \setupcolors is removed, both pdfTeX and XeTeX also produce
> > the correct result.
> >
> > This sounds like a bug to me (and took me forever to isolate
> > \setupcolors - of all things! - as the culprit).
>
> actually it's the \type (combined with colors)
>
> \dontleavehmode \type {xx}
>
> works ok
>
> probably some pdfliteral is playing havoc here so that the width analyer
> cannot function well (a limitation of tex is that there's only a small
> set subset of \un* and \last* node operations); if you see messages like
> this
>
> !!forced exit from shapebox 9!!
>
> that is indeed the case. hoewver, in mkiv i use different trickery so
> there we don't have this problem (we also use a different color
> mechanism so that helps too)
>
> it's not so much a bug in mkii as well as a side effect/limitation
>
> okay, we could add \dontleavehmode to \type but i'm not sure if that
> will not break other things; also, bTABLE is kind of tricky because it
> needs to be clever with regards to text and non text and such
If he use \retype the table works.
Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread
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2008-05-23 19:32 Odd Behavior in pdftex/xetex Michael.Urban
2008-05-23 20:29 ` Hans Hagen
2008-05-24 6:58 ` Wolfgang Schuster
2008-05-28 18:52 ` Michael.Urban
2008-05-28 20:23 ` Hans Hagen
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