Re: [NTG-context] [luatex-plain] disappearing math-on node
···date: 2014-04-06, Sunday···from: Hans Hagen···
On 4/5/2014 3:12 PM, Philipp Gesang wrote:
···date: 2014-04-03, Thursday···from: Hans Hagen···
On 4/3/2014 6:29 PM, Dohyun Kim wrote:
This is a bug report based on the issue discussed at
https://github.com/lualatex/luaotfload/issues/212
\font\tenrm{file:lmroman10-regular.otf:mode=node;script=latn}\tenrm
\setbox0\vbox{%
x\penalty-1
$a$x$a$
}
\unvbox0
\setbox0\lastbox
\unhbox0
\end
The plain tex code shown above fails with a lua error:
luatex-fonts-merged.lua:9616: attempt to index local 'current' (a nil
value)
My guess is: as math-on (math-off too) is a discardable item after a
linebreak, the first math-on node has gone away. So the
math-on/math-off pair has become broken, by which the behavior of
node.end_of_math is confused.
mtxrun --script plain test.tex
runs ok here so i need an example that fails with context or luatex-plain
It fails with the luatex-plain format from the minimals as of
yesterday and Luatex 4972:
error:
.../context/tex/texmf-context/tex/context/base/font-ota.lua:144: attempt to
index local 'current' (a nil value)
.
\bye ^^@-\par
\vfill \supereject \end
l.17 \bye
Though the issue arises only in node mode.
normally the font callback is called on a hlist and there are always
paired math nodes
(what is line 9616 in the current beta?)
Line 9626 with yesterday’s code. Attached are patches for
font-ota.lua and luatex-fonts-otn.lua that guard all invocations
of end_of_math() with checks for the subtype.
I think that the removed math node is a bad thing so that will change in
a next luatex release (i tested a patch but it will not go in the tl
release). (Just like the math node at the end of a line it will have
zero surround in order to make the backend happy.)
I’d be interested in testing the patch as well.
In order to avoid the 'current' issue I'll use an overload of
end_of_math in the generic code.
The real solution is to make the built-in end_of_math more strict
(trivial patch ready and tested so that can end up in the next luatex).
In the context code i won't intercept it because end_of_math will do
that at some point.
Good news. Though I’m a little worried about the fontloader in
Context and the generic format diverging too much.
Thanks for looking into this,
Philipp
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[NTG-context] page reference to figure fails when figure location is none
Using a recent MkIV beta (2014.03.27), it seems that a page reference to
a figure fails if the figure location is none. Here is a minimal
example:
\starttext
\input knuth
\placefigure[none][regularref]{}{\pagereference[workaroundref]
\externalfigure[cow.pdf]}
\input knuth
See \at{page}[workaroundref] or \at{page}[regularref]
\stoptext
The log file has
references unknown reference '[][regularref]'
and the .pdf file has
See page 1 or page ??
That is, the \at{page}[regularref] doesn't work. (But the workaround
reference does work.)
If the figure's location key is changed from none to nonumber or
just deleted, then the regularref page reference works.
It also works with MkII (with or without none), so I am guessing that
it is a bug in MkIV.
-Sanjoy
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Re: [NTG-context] page reference to figure fails when figure location is none
On 4/6/2014 12:14 PM, Sanjoy Mahajan wrote:
Using a recent MkIV beta (2014.03.27), it seems that a page reference to
a figure fails if the figure location is none. Here is a minimal
example:
\starttext
\input knuth
\placefigure[none][regularref]{}{\pagereference[workaroundref]
\externalfigure[cow.pdf]}
\input knuth
See \at{page}[workaroundref] or \at{page}[regularref]
\stoptext
The log file has
references unknown reference '[][regularref]'
and the .pdf file has
See page 1 or page ??
That is, the \at{page}[regularref] doesn't work. (But the workaround
reference does work.)
If the figure's location key is changed from none to nonumber or
just deleted, then the regularref page reference works.
It also works with MkII (with or without none), so I am guessing that
it is a bug in MkIV.
more a side effect .. in mkii we store refs independently, in mkiv they
can also travel with other properties (like lists and here we have no
list entry
in the next beta this will work ok
\starttext
\placefigure
[none]
[regularref-1]
{}
{\hbox{\pagereference[workaroundref-1]\externalfigure[cow.pdf]}}
\placefigure
[here]
[regularref-2]
{}
{\hbox{\pagereference[workaroundref-2]\externalfigure[cow.pdf]}}
See \at{page}[workaroundref-1] or \at{page}[regularref-1]
See \at{page}[workaroundref-2] or \at{page}[regularref-2]
\blank
\placelist[figure][criterium=text]
\stoptext
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-
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Re: [NTG-context] page reference to figure fails when figure location is none
Hans Hagen pra...@wxs.nl writes: more a side effect .. in mkii we store refs independently, in mkiv they can also travel with other properties (like lists and here we have no list entry in the next beta this will work ok That make sense. I will try it out. I have found a few other buglets with placefigure for which I will make minimal examples. -- -Sanjoy ___ 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 : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
[NTG-context] \placefigure and title bug in latest beta
Hans--
In today's beta, the following produces a figure entitled Figure 1 title:
\setupexternalfigures[location={local,default}]
\starttext
\useexternalfigure[cow.pdf]
\startplacefigure[title={A cow}]
{\externalfigure[Graphic][cow.pdf]}
\stopplacefigure
\stoptext
Alan
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Re: [NTG-context] [luatex-plain] disappearing math-on node
···date: 2014-04-06, Sunday···from: Hans Hagen···
On 4/5/2014 3:12 PM, Philipp Gesang wrote:
···date: 2014-04-03, Thursday···from: Hans Hagen···
On 4/3/2014 6:29 PM, Dohyun Kim wrote:
This is a bug report based on the issue discussed at
https://github.com/lualatex/luaotfload/issues/212
\font\tenrm{file:lmroman10-regular.otf:mode=node;script=latn}\tenrm
\setbox0\vbox{%
x\penalty-1
$a$x$a$
}
\unvbox0
\setbox0\lastbox
\unhbox0
\end
The plain tex code shown above fails with a lua error:
luatex-fonts-merged.lua:9616: attempt to index local 'current' (a nil
value)
My guess is: as math-on (math-off too) is a discardable item after a
linebreak, the first math-on node has gone away. So the
math-on/math-off pair has become broken, by which the behavior of
node.end_of_math is confused.
mtxrun --script plain test.tex
runs ok here so i need an example that fails with context or luatex-plain
It fails with the luatex-plain format from the minimals as of
yesterday and Luatex 4972:
error:
.../context/tex/texmf-context/tex/context/base/font-ota.lua:144: attempt to
index local 'current' (a nil value)
.
\bye ^^@-\par
\vfill \supereject \end
l.17 \bye
Though the issue arises only in node mode.
normally the font callback is called on a hlist and there are always
paired math nodes
(what is line 9616 in the current beta?)
Line 9626 with yesterday’s code. Attached are patches for
font-ota.lua and luatex-fonts-otn.lua that guard all invocations
of end_of_math() with checks for the subtype.
I think that the removed math node is a bad thing so that will change in
a next luatex release (i tested a patch but it will not go in the tl
release). (Just like the math node at the end of a line it will have
zero surround in order to make the backend happy.)
In order to avoid the 'current' issue I'll use an overload of
end_of_math in the generic code.
The real solution is to make the built-in end_of_math more strict
(trivial patch ready and tested so that can end up in the next luatex).
With experimental revision 4974 the bug is gone. Thanks!
Philipp
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Re: [NTG-context] \placefigure and title bug in latest beta
Hi,
I can confirm this…
This is probably due to the new features Hans added today.
Also, the new feature
\placelist[figure][criterium=text]
places indeed the list of the figures, but the names of the figures, or rather
their captions are all indicated by the word « list ».
Best regards: OK
On 6 avr. 2014, at 16:26, Alan Bowen bowenala...@gmail.com wrote:
Hans—
In today’s beta, the following produces a figure entitled “Figure 1 title”:
\setupexternalfigures[location={local,default}]
\starttext
\useexternalfigure[cow.pdf]
\startplacefigure[title={A cow}]
{\externalfigure[Graphic][cow.pdf]}
\stopplacefigure
\stoptext
Alan
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[NTG-context] three long-standing issues
Hans,
the following sample shows three long-standing issues with ConTeXt (I’m
afraid they might be bugs):
\definestructureconversionset[chapternumbers][0,I,a,n,g][n]
\setupheads[sectionconversionset=chapternumbers]
\setupsectionblock[bodypart][page=no]
\setupheadertexts[chapter]
\setupinteraction[state=start]
\placebookmarks[chapter]
\starttext
\chapter{\TeX}
\input knuth\par
\startfrontmatter
\dorecurse{5}{\chapter{Front matter}
\input zapf\par}
\stopfrontmatter
\startbodymatter
\dorecurse{5}{\chapter{Body matter}
\input zapf\par}
\stopbodymatter
\stoptext
1. PDF bookmarks don’t contain Roman capital numerals (as I think they
should).
2. \setupsectionblock[...][page=no] causes the last page in bodypart to
have its header removed.
3. \chapter{\TeX} causes bookmarks from bodymatter to be located before
bookmarks from frontmatter.
I have tested this file against ConTeXt from TeX Live 2013 (2013.05.28
00:36), ConTeXt Suite stable (2014.01.03 00:40), and latest beta
(2014.04.06 13:09).
Except issue 3 and ConTeXt from TeX Live 2013, all three versions suffer
from these issues.
Could you fix these issues?
Many thanks for your help,
Pablo
--
http://www.ousia.tk
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Re: [NTG-context] Set two symbols in relative coordinates
Just remembering this. If it is really impossible, I will try another way. Thanks! Huseyin ___ 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 : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] Bug in ligature lookup
Just remembering. Is it possible to fix this bug? Thanks! Huseyin ___ 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 : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
