Re: [NTG-context] units module has bug with markIV?
On Sat, 20 Sep 2008, Chen Shen wrote: Hi all, I wonder if anyone could help with this problem with Units in mkiv. Thanks a lot. regards, shenchen On Wed, Sep 3, 2008 at 9:36 AM, Chen Shen [EMAIL PROTECTED] wrote: Hi all, \Micro in the units module failed, while \Nano and \Milli works fine. $\mu$ works, so it doesn't look like a font problem. The following code works with pdftex/MarkII, but fails under Luatex 0.29beta/MarkIV. \usemodule[units] \starttext Hello world! $1\Micro\Meter$ $1\Micro\Second$ \stoptext Any hints? Thanks a lot! I am just writing to say that I looked at your original message, but could not figure out what is going wrong. \Micro is expanded to μ, but then something goes wrong. Hans, Taco, can you see what is happening here? Aditya___ 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 ___
Re: [NTG-context] units module has bug with markIV?
Aditya Mahajan wrote:
I am just writing to say that I looked at your original message, but
could not figure out what is going wrong. \Micro is expanded to μ, but
then something
goes wrong.
Hans, Taco, can you see what is happening here?
That took some thinking. The error is caused by the \mathcode of µ,
it is 7116, but it should be 0116. The '7' in the current
definition makes it switch along with \fam. \dimensiontypeface
expands to \tf, so \fam is set to 11, and that is \rm.
So you end up with this minimal file:
\starttext
$\rm µ$ % that's U+03BC
\stoptext
The latin modern text (\rm) font does not have a greek alphabet.
If it did, all would have worked ok. Since that cannot easily be
fixed and I suspect most text fonts do not have greek, so changing
the mathcode of the greek characters is probably the best solution
(it affects normal math mode as well, as you can see)
And as an aside, it would be nicer to use U+00B5 (mu latin) in the
units module instead of U+03BC (mu greek).
\def\Micro {\dimensionprefix{\iftextdimensions u\else\hbox{µ}\fi}}
The \hbox is needed because \fam11 is using ec encoding, I think.
(and that is problematic in its own way, but let's not go there)
Best wishes,
Taco
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Re: [NTG-context] units module has bug with markIV?
On Sat, Sep 20, 2008 at 6:28 PM, Taco Hoekwater [EMAIL PROTECTED] wrote:
And as an aside, it would be nicer to use U+00B5 (mu latin) in the
units module instead of U+03BC (mu greek).
\def\Micro {\dimensionprefix{\iftextdimensions u\else\hbox{µ}\fi}}
The \hbox is needed because \fam11 is using ec encoding, I think.
(and that is problematic in its own way, but let's not go there)
Yes. This change to (mu latin) worked. Thank you so much for the
detailed explanations.
I think it is preferable to use upright greek letters in units.
The shape of (mu latin) in the latin modern font isn't the prettiest
design, but is still better than mixing italic mu with other upright
letters in units.
Besides, I guess, (mu latin) instead of u can be used in text-mode units?
regards,
shenchen
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Re: [NTG-context] units module has bug with markIV?
Hi all, I wonder if anyone could help with this problem with Units in mkiv. Thanks a lot. regards, shenchen On Wed, Sep 3, 2008 at 9:36 AM, Chen Shen [EMAIL PROTECTED] wrote: Hi all, \Micro in the units module failed, while \Nano and \Milli works fine. $\mu$ works, so it doesn't look like a font problem. The following code works with pdftex/MarkII, but fails under Luatex 0.29beta/MarkIV. \usemodule[units] \starttext Hello world! $1\Micro\Meter$ $1\Micro\Second$ \stoptext Any hints? Thanks a lot! regards, shenchen ___ 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 ___
