From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: [luatex-plain] disappearing math-on node
Date: Thu, 03 Apr 2014 23:56:36 +0200 [thread overview]
Message-ID: <533DD914.2040009@wxs.nl> (raw)
In-Reply-To: <CAFzmAm0apzLjGk850E6QnrRhYFO3qYpOnh-QjnE5OWAmDqu_uw@mail.gmail.com>
On 4/3/2014 6:29 PM, Dohyun Kim wrote:
> Hi,
>
> 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-10000
> $a$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
normally the font callback is called on a hlist and there are always
paired math nodes
(what is line 9616 in the current beta?)
If indeed the end_of_math is a problem i can remove that optimiziation
in the generic code
Hans
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next prev parent reply other threads:[~2014-04-03 21:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-03 16:29 Dohyun Kim
2014-04-03 21:56 ` Hans Hagen [this message]
2014-04-05 13:12 ` Philipp Gesang
2014-04-05 22:44 ` Hans Hagen
2014-04-06 8:38 ` Philipp Gesang
2014-04-06 14:57 ` Philipp Gesang
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