Re: [NTG-context] unicode integral sign
On Sat, 29 May 2010, Taco Hoekwater wrote:
Aditya Mahajan wrote:
On Sat, 29 May 2010, Yury G. Kudryashov wrote:
> Taco Hoekwater wrote:
>
> > Yury G. Kudryashov wrote:
> > > Hi!
> > >
> > > I try the following:
> > >
> > > \starttext
> > > $∫_a^b \int_a^b$
> > > \stoptext
> > >
> > > In the first case, the integral sign is below the text. Should I use
> > > another font, or is it possible to fix with the default one?
> >
> > It is possible to fix this. The reason for the odd placement is that
> > the
> > 'math code' of ∫ is not set up properly (and it probably isn't either
> > for some other bare Unicode characters). To fix the hard way, add this
> > at the top of your input file:
> >
> > \Umathcode `∫ = 1 0 `∫ % 1 == \mathop, 0=fam0, ∫=glyph
> Is there any documentation on char-def.lua file format? If I'll
> understand it, I'll send a patch for the symbols I use.
Not a complete documentation, but some explanation is here
https://www.tug.org/members/TUGboat/tb30-2/tb95mahajan-cmath.pdf
> Currently I have no idea why the following strings in char-def don't
> work.
>
> [0x222B]={
> adobename="integral",
> category="sm",
> cjkwd="a",
> description="INTEGRAL",
> direction="on",
> linebreak="ai",
> mathspec={
> { class="nothing", name="intop" },
> { class="limop" , name="int" },
> },
> unicodeslot=0x222B,
> },
>
> Replacing mathspec=... with mathclass="limop", mathname="int" seems to
> work (copied from n-ary summation).
>
> BTW, in both solution ∫_a acts like \int\limits_a, not \int_a.
In plain TeX, this is taken care by
\mathchardef\intop="1352 \def\int{\intop\nolimits}
Can I do the same in luatex without active characters?
No, but it is a useful extension to consider. There are internally
three types of large operators, for 'limits', 'nolimits' and
'displaylimits' and this bothers me a bit. We can't reasonably
extend the old primitives, but \Umathcharcode c.s. could be made
to accept extra values '9' .. '11' for those three types without
any compatibility problems. I'll add to the tracker.
Thanks. That will make all the int (and sum) setup much simpler.
Aditya___
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___
Re: [NTG-context] unicode integral sign
Aditya Mahajan wrote:
On Sat, 29 May 2010, Yury G. Kudryashov wrote:
Taco Hoekwater wrote:
Yury G. Kudryashov wrote:
Hi!
I try the following:
\starttext
$∫_a^b \int_a^b$
\stoptext
In the first case, the integral sign is below the text. Should I use
another font, or is it possible to fix with the default one?
It is possible to fix this. The reason for the odd placement is that the
'math code' of ∫ is not set up properly (and it probably isn't either
for some other bare Unicode characters). To fix the hard way, add this
at the top of your input file:
\Umathcode `∫ = 1 0 `∫ % 1 == \mathop, 0=fam0, ∫=glyph
Is there any documentation on char-def.lua file format? If I'll
understand it, I'll send a patch for the symbols I use.
Not a complete documentation, but some explanation is here
https://www.tug.org/members/TUGboat/tb30-2/tb95mahajan-cmath.pdf
Currently I have no idea why the following strings in char-def don't
work.
[0x222B]={
adobename="integral",
category="sm",
cjkwd="a",
description="INTEGRAL",
direction="on",
linebreak="ai",
mathspec={
{ class="nothing", name="intop" },
{ class="limop" , name="int" },
},
unicodeslot=0x222B,
},
Replacing mathspec=... with mathclass="limop", mathname="int" seems to
work (copied from n-ary summation).
BTW, in both solution ∫_a acts like \int\limits_a, not \int_a.
In plain TeX, this is taken care by
\mathchardef\intop="1352 \def\int{\intop\nolimits}
Can I do the same in luatex without active characters?
No, but it is a useful extension to consider. There are internally
three types of large operators, for 'limits', 'nolimits' and
'displaylimits' and this bothers me a bit. We can't reasonably
extend the old primitives, but \Umathcharcode c.s. could be made
to accept extra values '9' .. '11' for those three types without
any compatibility problems. I'll add to the tracker.
Best wishes,
Taco
___
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] unicode integral sign
On Sat, 29 May 2010, Yury G. Kudryashov wrote:
Taco Hoekwater wrote:
Yury G. Kudryashov wrote:
Hi!
I try the following:
\starttext
$∫_a^b \int_a^b$
\stoptext
In the first case, the integral sign is below the text. Should I use
another font, or is it possible to fix with the default one?
It is possible to fix this. The reason for the odd placement is that the
'math code' of ∫ is not set up properly (and it probably isn't either
for some other bare Unicode characters). To fix the hard way, add this
at the top of your input file:
\Umathcode `∫ = 1 0 `∫ % 1 == \mathop, 0=fam0, ∫=glyph
Is there any documentation on char-def.lua file format? If I'll understand
it, I'll send a patch for the symbols I use.
Not a complete documentation, but some explanation is here
https://www.tug.org/members/TUGboat/tb30-2/tb95mahajan-cmath.pdf
Currently I have no idea why the following strings in char-def don't work.
[0x222B]={
adobename="integral",
category="sm",
cjkwd="a",
description="INTEGRAL",
direction="on",
linebreak="ai",
mathspec={
{ class="nothing", name="intop" },
{ class="limop" , name="int" },
},
unicodeslot=0x222B,
},
Replacing mathspec=... with mathclass="limop", mathname="int" seems to work
(copied from n-ary summation).
BTW, in both solution ∫_a acts like \int\limits_a, not \int_a.
In plain TeX, this is taken care by
\mathchardef\intop="1352 \def\int{\intop\nolimits}
Can I do the same in luatex without active characters?
\Umathchardef\INTOP=1 0 `∫
\def\INT{\INTOP\intlimits}
\catcode`∫=\active
\let ∫=\INT
\starttext
$∫_a^b$
$\displaystyle ∫_a^b$
\stoptext
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 : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___
Re: [NTG-context] unicode integral sign
Taco Hoekwater wrote:
> Yury G. Kudryashov wrote:
>> Hi!
>>
>> I try the following:
>>
>> \starttext
>> $∫_a^b \int_a^b$
>> \stoptext
>>
>> In the first case, the integral sign is below the text. Should I use
>> another font, or is it possible to fix with the default one?
>
> It is possible to fix this. The reason for the odd placement is that the
> 'math code' of ∫ is not set up properly (and it probably isn't either
> for some other bare Unicode characters). To fix the hard way, add this
> at the top of your input file:
>
> \Umathcode `∫ = 1 0 `∫ % 1 == \mathop, 0=fam0, ∫=glyph
Is there any documentation on char-def.lua file format? If I'll understand
it, I'll send a patch for the symbols I use.
Currently I have no idea why the following strings in char-def don't work.
[0x222B]={
adobename="integral",
category="sm",
cjkwd="a",
description="INTEGRAL",
direction="on",
linebreak="ai",
mathspec={
{ class="nothing", name="intop" },
{ class="limop" , name="int" },
},
unicodeslot=0x222B,
},
Replacing mathspec=... with mathclass="limop", mathname="int" seems to work
(copied from n-ary summation).
BTW, in both solution ∫_a acts like \int\limits_a, not \int_a.
___
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] unicode integral sign
Yury G. Kudryashov wrote: Hi! I try the following: \starttext $∫_a^b \int_a^b$ \stoptext In the first case, the integral sign is below the text. Should I use another font, or is it possible to fix with the default one? It is possible to fix this. The reason for the odd placement is that the 'math code' of ∫ is not set up properly (and it probably isn't either for some other bare Unicode characters). To fix the hard way, add this at the top of your input file: \Umathcode `∫ = 1 0 `∫ % 1 == \mathop, 0=fam0, ∫=glyph Eventually, this definition will be added to char-def.lua and then everything will work out of the box. Best wishes, Taco ___ 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] unicode integral sign
Hi! I try the following: \starttext $∫_a^b \int_a^b$ \stoptext In the first case, the integral sign is below the text. Should I use another font, or is it possible to fix with the default one? ___ 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 ___
