\lgroup in mkIV

\lgroup in mkIV

[Daniel Schopper]

Hi,
are the delimiters \lgroup and \rgroup supported in MkIV?
This

\starttext
$$\bigg\lgroup\dots\bigg\rgroup$$
\stoptext

is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with MkIV 
(ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the delimiters 
are not shown. (By the way, the same holds true for \rmoustache and 
\lmoustache.)
Am I missing something? Searching the list archive and the contextgarden 
unfortunately didn't bring up in anything.
Thanks in advance,
Daniel
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___________________________________________________________________________________

Re: \lgroup in mkIV

[Aditya Mahajan]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 1737 bytes --]

On Sat, 8 Jan 2011, Daniel Schopper wrote:

> Hi,
> are the delimiters \lgroup and \rgroup supported in MkIV?
> This
>
> \starttext
> $$\bigg\lgroup\dots\bigg\rgroup$$
> \stoptext
>
> is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with MkIV (ConTeXt 
> ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the delimiters are not 
> shown. (By the way, the same holds true for \rmoustache and \lmoustache.)

> Am I missing something?

No. The math mappings of virtual fonts are incomplete. The symbols should 
work correctly with unicode math fonts like cambria, asana, and xits. 
But, it appears that lgroup and rgroup are missing from xits (Khaled?) and 
lmoustache and rmoustache are missing from asana! With Cambria there is 
a bug with scaling:

\setupbodyfont[cambria]
\enabletrackers[math.analyzing]
\usemodule[fnt-25]

\starttext
\showmathfontcharacters[][0x23B0]
\showmathfontcharacters[][0x3014]
$$\bigg\lgroup\dots\bigg\rgroup$$
$$\left\lgroup\sum\right\rgroup$$
$$\lgroup\sum\rgroup$$

$$\bigg\lmoustache\dots\bigg\rmoustache$$
$$\left\lmoustache\sum\right\rmoustache$$
$$\lmoustache\sum\rmoustache$$
\stoptext

@Hans, Taco, and Mojca: Do you know why the delimiters are not scaling 
properly?

Do you know how to add them to the LM virtual fonts? I tried, but could 
not get a working solution. I can add the correct mappings to 
large-to-small table in math-vfu. But adding the mappings for lgroup and 
rgroup in tex-mr table, and adding lmoustache and rmoustache to tex-ex 
table does not appear to work. Apply the attached diff file and see what 
happens with the example above. I don't know how to proceed. BTW, where 
are the math virtual fonts defined!? I could not find any use of 
mathematics.makefont.

Aditya

[-- Attachment #2: Type: TEXT/plain, Size: 573 bytes --]

721,722c721,722
<     [0x03014] = 0x3A, -- lgroup
<     [0x03015] = 0x3B, -- rgroup
---
> --~ [0x0]     = 0x3A, -- lgroup
> --~ [0x0]     = 0x3B, -- rgroup
726,727c726,727
<     [0x023B0] = 0x40, -- lmoustache
<     [0x023B1] = 0x41, -- rmoustache
---
> --~ [0x0]     = 0x40, -- lmoustache
> --~ [0x0]     = 0x41, -- rmoustache
749,750d748
<     [0x023B0] = 0x7A, -- lmoustache
<     [0x023B1] = 0x7B, -- rmoustache
788,789c786,787
<     [0x00028] = 0x28, -- (
<     [0x00029] = 0x29, -- )
---
> --  [0x00028] = 0x28, -- (
> --  [0x00029] = 0x29, -- )

[-- Attachment #3: Type: text/plain, Size: 486 bytes --]

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___________________________________________________________________________________

Re: \lgroup in mkIV

[Khaled Hosny]

On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
> On Sat, 8 Jan 2011, Daniel Schopper wrote:
> 
> >Hi,
> >are the delimiters \lgroup and \rgroup supported in MkIV?
> >This
> >
> >\starttext
> >$$\bigg\lgroup\dots\bigg\rgroup$$
> >\stoptext
> >
> >is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
> >MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
> >delimiters are not shown. (By the way, the same holds true for
> >\rmoustache and \lmoustache.)
> 
> >Am I missing something?
> 
> No. The math mappings of virtual fonts are incomplete. The symbols
> should work correctly with unicode math fonts like cambria, asana,
> and xits. But, it appears that lgroup and rgroup are missing from
> xits (Khaled?)

There are, but context is looking for the wring character; it is looking
for U+3014 (which I think is a CJK bracket and does not look like
\lgroup either) while it should be looking for U+27EE (whose Unicode
annotation precisely says "lgroup"):

\setupbodyfont[xits]
\starttext
$$\bigg\lgroup\dots\bigg\rgroup$$
\def\lgroup{\Udelimiter "4 "0 "27EE}
\def\rgroup{\Udelimiter "4 "0 "27EF}
$$\bigg\lgroup\dots\bigg\rgroup$$
\stoptext

It was not extensible though, the version in git now grow, but starts
with a relatively large size, check and tell me if it should be smaller.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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___________________________________________________________________________________

Re: \lgroup in mkIV

[Khaled Hosny]

On Sat, Jan 08, 2011 at 09:35:09PM +0200, Khaled Hosny wrote:
> On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
> > On Sat, 8 Jan 2011, Daniel Schopper wrote:
> > 
> > >Hi,
> > >are the delimiters \lgroup and \rgroup supported in MkIV?
> > >This
> > >
> > >\starttext
> > >$$\bigg\lgroup\dots\bigg\rgroup$$
> > >\stoptext
> > >
> > >is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
> > >MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
> > >delimiters are not shown. (By the way, the same holds true for
> > >\rmoustache and \lmoustache.)
> > 
> > >Am I missing something?
> > 
> > No. The math mappings of virtual fonts are incomplete. The symbols
> > should work correctly with unicode math fonts like cambria, asana,
> > and xits. But, it appears that lgroup and rgroup are missing from
> > xits (Khaled?)
> 
> There are, but context is looking for the wring character; it is looking
> for U+3014 (which I think is a CJK bracket and does not look like
> \lgroup either)

BTW, why luatex no longer prints the "missing character" messages in the
log? I was using it to find what characters context is looking for, also
now it is near impossible to know if the font is missing some needed
character without reviewing every word by eye since luatex (context?)
does not show a "missing character" glyph in such cases, or is there
some replacement I've missed?

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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___________________________________________________________________________________

Re: \lgroup in mkIV

[Aditya Mahajan]

On Sat, 8 Jan 2011, Khaled Hosny wrote:

> On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
>> On Sat, 8 Jan 2011, Daniel Schopper wrote:
>>
>>> Hi,
>>> are the delimiters \lgroup and \rgroup supported in MkIV?
>>> This
>>>
>>> \starttext
>>> $$\bigg\lgroup\dots\bigg\rgroup$$
>>> \stoptext
>>>
>>> is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
>>> MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
>>> delimiters are not shown. (By the way, the same holds true for
>>> \rmoustache and \lmoustache.)
>>
>>> Am I missing something?
>>
>> No. The math mappings of virtual fonts are incomplete. The symbols
>> should work correctly with unicode math fonts like cambria, asana,
>> and xits. But, it appears that lgroup and rgroup are missing from
>> xits (Khaled?)
>
> There are, but context is looking for the wring character; it is looking
> for U+3014 (which I think is a CJK bracket and does not look like
> \lgroup either) while it should be looking for U+27EE (whose Unicode
> annotation precisely says "lgroup"):

Hmm ... 27EE does not exist: http://unicode.org/charts/PDF/U32-27C0.pdf
I believe that I used 3014 based on 
http://www-sop.inria.fr/apics/tralics/doc-l.html#cmd-lgroup

What source do you use for the symbols?

Aditya

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Re: \lgroup in mkIV

[Arthur Reutenauer]

> Hmm ... 27EE does not exist: http://unicode.org/charts/PDF/U32-27C0.pdf

  You're looking at the chart for Unicode 3.2 that is almost 10 years
old...

  The latest version (now 6.0) is always available as
http://www.unicode.org/charts/PDF/U27C0.pdf and has the character as
Khaled says.

	Arthur
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Re: \lgroup in mkIV

[Khaled Hosny]

On Sat, Jan 08, 2011 at 02:59:35PM -0500, Aditya Mahajan wrote:
> On Sat, 8 Jan 2011, Khaled Hosny wrote:
> 
> >On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
> >>On Sat, 8 Jan 2011, Daniel Schopper wrote:
> >>
> >>>Hi,
> >>>are the delimiters \lgroup and \rgroup supported in MkIV?
> >>>This
> >>>
> >>>\starttext
> >>>$$\bigg\lgroup\dots\bigg\rgroup$$
> >>>\stoptext
> >>>
> >>>is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
> >>>MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
> >>>delimiters are not shown. (By the way, the same holds true for
> >>>\rmoustache and \lmoustache.)
> >>
> >>>Am I missing something?
> >>
> >>No. The math mappings of virtual fonts are incomplete. The symbols
> >>should work correctly with unicode math fonts like cambria, asana,
> >>and xits. But, it appears that lgroup and rgroup are missing from
> >>xits (Khaled?)
> >
> >There are, but context is looking for the wring character; it is looking
> >for U+3014 (which I think is a CJK bracket and does not look like
> >\lgroup either) while it should be looking for U+27EE (whose Unicode
> >annotation precisely says "lgroup"):
> 
> Hmm ... 27EE does not exist: http://unicode.org/charts/PDF/U32-27C0.pdf
> I believe that I used 3014 based on
> http://www-sop.inria.fr/apics/tralics/doc-l.html#cmd-lgroup
> 
> What source do you use for the symbols?

I opened Gnome's Character Map and searched for lgroup :) (but I've seen
it before, so I know it exists, I just don't recall the code point). Now
that you asked, I checked Unicode website and they have "Miscellaneous
Mathematical Symbols-A":

http://unicode.org/charts/PDF/U27C0.pdf

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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___________________________________________________________________________________

Re: \lgroup in mkIV

[Arthur Reutenauer]

> There are, but context is looking for the wring character; it is looking
> for U+3014 (which I think is a CJK bracket

  Indeed.  It's one of the angle brackets that one finds in many CJK
fonts.

>                 while it should be looking for U+27EE (whose Unicode
> annotation precisely says "lgroup"):

  Note that those annatations in the code charts are actually the
Unicode 1.0 names of the characters, where they differ from the Unicode
1.1 names (when Unicode was unified with ISO 10646 and adopted some of
its names).  They should not, in general, be understood as the name of
this character is some other standard, for example.  But they are of
course a good hint of what the character represents.

	Arthur
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Re: \lgroup in mkIV

[Aditya Mahajan]

On Sat, 8 Jan 2011, Khaled Hosny wrote:

> On Sat, Jan 08, 2011 at 02:59:35PM -0500, Aditya Mahajan wrote:
>> On Sat, 8 Jan 2011, Khaled Hosny wrote:
>>
>>> On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
>>>> On Sat, 8 Jan 2011, Daniel Schopper wrote:
>>>>
>>>>> Hi,
>>>>> are the delimiters \lgroup and \rgroup supported in MkIV?
>>>>> This
>>>>>
>>>>> \starttext
>>>>> $$\bigg\lgroup\dots\bigg\rgroup$$
>>>>> \stoptext
>>>>>
>>>>> is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
>>>>> MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
>>>>> delimiters are not shown. (By the way, the same holds true for
>>>>> \rmoustache and \lmoustache.)
>>>>
>>>>> Am I missing something?
>>>>
>>>> No. The math mappings of virtual fonts are incomplete. The symbols
>>>> should work correctly with unicode math fonts like cambria, asana,
>>>> and xits. But, it appears that lgroup and rgroup are missing from
>>>> xits (Khaled?)
>>>
>>> There are, but context is looking for the wring character; it is looking
>>> for U+3014 (which I think is a CJK bracket and does not look like
>>> \lgroup either) while it should be looking for U+27EE (whose Unicode
>>> annotation precisely says "lgroup"):
>>
>> Hmm ... 27EE does not exist: http://unicode.org/charts/PDF/U32-27C0.pdf
>> I believe that I used 3014 based on
>> http://www-sop.inria.fr/apics/tralics/doc-l.html#cmd-lgroup
>>
>> What source do you use for the symbols?
>
> I opened Gnome's Character Map and searched for lgroup :) (but I've seen
> it before, so I know it exists, I just don't recall the code point). Now
> that you asked, I checked Unicode website and they have "Miscellaneous
> Mathematical Symbols-A":
>
> http://unicode.org/charts/PDF/U27C0.pdf

That was the same range that I had looked at, but somehow that pdf did not 
have 27EC-27EF. Neither does char-def.lua. So, I guess that these are 
newer additions. I will add them to char-def.lua and correct the mappings 
for lgroup and rgroup.

Aditya
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Re: \lgroup in mkIV

[Aditya Mahajan]

On Sat, 8 Jan 2011, Arthur Reutenauer wrote:

>> Hmm ... 27EE does not exist: http://unicode.org/charts/PDF/U32-27C0.pdf
>
>  You're looking at the chart for Unicode 3.2 that is almost 10 years
> old...

I blame everything on google :)

>  The latest version (now 6.0) is always available as
> http://www.unicode.org/charts/PDF/U27C0.pdf and has the character as
> Khaled says.

Thanks.

Aditya
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___________________________________________________________________________________

Re: \lgroup in mkIV

[Arthur Reutenauer]

> That was the same range that I had looked at, but somehow that pdf did 
> not have 27EC-27EF. Neither does char-def.lua. So, I guess that these are 
> newer additions.

  It's been introduced in Unicode 5.1 in March 2008.  Unicode is an
evolving standard, you know.

	Arthur
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Re: \lgroup in mkIV

[Aditya Mahajan]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 1717 bytes --]

On Sat, 8 Jan 2011, Khaled Hosny wrote:

> On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
>> On Sat, 8 Jan 2011, Daniel Schopper wrote:
>>
>>> Hi,
>>> are the delimiters \lgroup and \rgroup supported in MkIV?
>>> This
>>>
>>> \starttext
>>> $$\bigg\lgroup\dots\bigg\rgroup$$
>>> \stoptext
>>>
>>> is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
>>> MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
>>> delimiters are not shown. (By the way, the same holds true for
>>> \rmoustache and \lmoustache.)
>>
>>> Am I missing something?
>>
>> No. The math mappings of virtual fonts are incomplete. The symbols
>> should work correctly with unicode math fonts like cambria, asana,
>> and xits. But, it appears that lgroup and rgroup are missing from
>> xits (Khaled?)
>
> There are, but context is looking for the wring character; it is looking
> for U+3014 (which I think is a CJK bracket and does not look like
> \lgroup either) while it should be looking for U+27EE (whose Unicode
> annotation precisely says "lgroup"):
>
> \setupbodyfont[xits]
> \starttext
> $$\bigg\lgroup\dots\bigg\rgroup$$
> \def\lgroup{\Udelimiter "4 "0 "27EE}
> \def\rgroup{\Udelimiter "4 "0 "27EF}
> $$\bigg\lgroup\dots\bigg\rgroup$$
> \stoptext
>
> It was not extensible though, the version in git now grow, but starts
> with a relatively large size, check and tell me if it should be smaller.

Looks OK to me, but I am not really an expert on the shapes of the 
symbols. Can you also make lmoustache and rmoustache extensible?

Hans, I am attaching the patch for char-def.lua that corrects the location 
of lgroup and rgroup. I still do not know how to fix this for lm virtual 
math font.

Aditya

[-- Attachment #2: Type: TEXT/plain, Size: 1560 bytes --]

diff --git a/char-def.lua b/char-def.lua
index c496b4a..515f932 100644
--- a/char-def.lua
+++ b/char-def.lua
@@ -63379,6 +63379,46 @@ characters.data={
   mirror=0x27EA,
   unicodeslot=0x27EB,
  },
+ [0x27EC]={
+  category="ps",
+  cjkwd="na",
+  description="MATHEMATICAL LEFT WHITE TORTOISE SHELL BRACKET",
+  direction="on",
+  linebreak="op",
+  mirror=0x27ED,
+  unicodeslot=0x27EC,
+ },
+ [0x27ED]={
+  category="pe",
+  cjkwd="na",
+  description="MATHEMATICAL RIGHT WHITE TORTOISE SHELL BRACKET",
+  direction="on",
+  linebreak="cl",
+  mirror=0x27EC,
+  unicodeslot=0x27ED,
+ },
+ [0x27EE]={
+  category="ps",
+  cjkwd="na",
+  description="MATHEMATICAL LEFT FLATTENED PARENTHESIS",
+  direction="on",
+  linebreak="op",
+  mathclass="open",
+  mathname="lgroup",
+  mirror=0x27EF,
+  unicodeslot=0x27EE,
+ },
+ [0x27EF]={
+  category="pe",
+  cjkwd="na",
+  description="MATHEMATICAL RIGHT FLATTENED PARENTHESIS",
+  direction="on",
+  linebreak="cl",
+  mathclass="close",
+  mathname="rgroup",
+  mirror=0x27EE,
+  unicodeslot=0x27EF,
+ },
  [0x27F0]={
   category="sm",
   description="UPWARDS QUADRUPLE ARROW",
@@ -75694,8 +75734,6 @@ characters.data={
   direction="on",
   linebreak="op",
   mirror=0x3015,
-  mathclass="open",
-  mathname="lgroup",
   unicodeslot=0x3014,
  },
  [0x3015]={
@@ -75705,8 +75743,6 @@ characters.data={
   direction="on",
   linebreak="cl",
   mirror=0x3014,
-  mathclass="close",
-  mathname="rgroup",
   unicodeslot=0x3015,
  },
  [0x3016]={

[-- Attachment #3: Type: text/plain, Size: 486 bytes --]

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___________________________________________________________________________________

Re: \lgroup in mkIV

[Khaled Hosny]

On Sun, Jan 09, 2011 at 01:13:25AM +0000, Arthur Reutenauer wrote:
> > That was the same range that I had looked at, but somehow that pdf did 
> > not have 27EC-27EF. Neither does char-def.lua. So, I guess that these are 
> > newer additions.
> 
>   It's been introduced in Unicode 5.1 in March 2008.  Unicode is an
> evolving standard, you know.

That is why I asked Hans while ago how char-def.lua was generated, from
what version of Unicode and whether it is updated/updatable or not; I
was worried that it will soon be outdated, which seems to be the case
now.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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___________________________________________________________________________________

Re: \lgroup in mkIV

[Khaled Hosny]

On Sat, Jan 08, 2011 at 08:29:17PM +0000, Arthur Reutenauer wrote:
> > There are, but context is looking for the wring character; it is looking
> > for U+3014 (which I think is a CJK bracket
> 
>   Indeed.  It's one of the angle brackets that one finds in many CJK
> fonts.
> 
> >                 while it should be looking for U+27EE (whose Unicode
> > annotation precisely says "lgroup"):
> 
>   Note that those annatations in the code charts are actually the
> Unicode 1.0 names of the characters, where they differ from the Unicode
> 1.1 names (when Unicode was unified with ISO 10646 and adopted some of
> its names).  They should not, in general, be understood as the name of
> this character is some other standard, for example.  But they are of
> course a good hint of what the character represents.

I usually look for long description, it can sometimes be very helpful on
what is the intended use of the characters (names are not very accurate,
especially early characters which are often misnamed).

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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Re: \lgroup in mkIV

[Aditya Mahajan]

On Sun, 9 Jan 2011, Khaled Hosny wrote:

> On Sun, Jan 09, 2011 at 01:13:25AM +0000, Arthur Reutenauer wrote:
>>> That was the same range that I had looked at, but somehow that pdf did
>>> not have 27EC-27EF. Neither does char-def.lua. So, I guess that these are
>>> newer additions.
>>
>>   It's been introduced in Unicode 5.1 in March 2008.  Unicode is an
>> evolving standard, you know.
>
> That is why I asked Hans while ago how char-def.lua was generated, from
> what version of Unicode and whether it is updated/updatable or not;

I don't know how it was generated. Mojca and I occasionally update the 
file by adding the names of math symbols. If the latest unicode symbol 
list is available in text format, it should not be too difficult 
to check if the table in char-def  has any missing entries.

> I
> was worried that it will soon be outdated, which seems to be the case
> now.

In this case, I just added these four missing characters by hand.

Aditya
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Re: \lgroup in mkIV

[Khaled Hosny]

On Sun, Jan 09, 2011 at 01:59:20PM -0500, Aditya Mahajan wrote:
> On Sun, 9 Jan 2011, Khaled Hosny wrote:
> 
> >On Sun, Jan 09, 2011 at 01:13:25AM +0000, Arthur Reutenauer wrote:
> >>>That was the same range that I had looked at, but somehow that pdf did
> >>>not have 27EC-27EF. Neither does char-def.lua. So, I guess that these are
> >>>newer additions.
> >>
> >>  It's been introduced in Unicode 5.1 in March 2008.  Unicode is an
> >>evolving standard, you know.
> >
> >That is why I asked Hans while ago how char-def.lua was generated, from
> >what version of Unicode and whether it is updated/updatable or not;
> 
> I don't know how it was generated. Mojca and I occasionally update
> the file by adding the names of math symbols. If the latest unicode
> symbol list is available in text format, it should not be too
> difficult to check if the table in char-def  has any missing
> entries.

Unicode data are always available as plain text files:

http://www.unicode.org/Public/UNIDATA/


-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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Re: \lgroup in mkIV

[Mojca Miklavec]

On Sun, Jan 9, 2011 at 19:59, Aditya Mahajan wrote:
> On Sun, 9 Jan 2011, Khaled Hosny wrote:
>
>> That is why I asked Hans while ago how char-def.lua was generated, from
>> what version of Unicode and whether it is updated/updatable or not;
>
> I don't know how it was generated. Mojca and I occasionally update the file
> by adding the names of math symbols. If the latest unicode symbol list is
> available in text format, it should not be too difficult to check if the
> table in char-def  has any missing entries.

From what I know it has been auto-generated the first time. Unless I'm
mistaken Hans never used any automatic procedure to add the new glyphs
from newer Unicode standards.

It is definitely updatable, but not necessary regularly updated :) :) :)
The code that generated the list cannot be used without modifications
since there have been many manual changes on the old list, but it is
definitely doable.

Mojca
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Re: \lgroup in mkIV

[Hans Hagen]

On 9-1-2011 7:59, Aditya Mahajan wrote:

> I don't know how it was generated. Mojca and I occasionally update the
> file by adding the names of math symbols. If the latest unicode symbol
> list is available in text format, it should not be too difficult to
> check if the table in char-def has any missing entries.

> In this case, I just added these four missing characters by hand.

The first versions of the table were a combination of data present 
already in context and some unicode tables from the web (using scripts) 
but much in the math department was added manually as i found out that 
tables (like stix) were too flawed and had bugs so were useless for our 
purpose. We could do some occasional update by checking diffs from older 
to newer unicodes, not that I expect too many changes.

Hans

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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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Re: \lgroup in mkIV

[Hans Hagen]

On 9-1-2011 8:58, Mojca Miklavec wrote:

> It is definitely updatable, but not necessary regularly updated :) :) :)
> The code that generated the list cannot be used without modifications
> since there have been many manual changes on the old list, but it is
> definitely doable.

I have a couple of scripts lying around and will have a look one of 
these days.

Hans


-----------------------------------------------------------------
                                           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: \lgroup in mkIV

[Khaled Hosny]

On Sat, Jan 08, 2011 at 10:24:01PM -0500, Aditya Mahajan wrote:
> On Sat, 8 Jan 2011, Khaled Hosny wrote:
> 
> >On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
> >>On Sat, 8 Jan 2011, Daniel Schopper wrote:
> >>
> >>>Hi,
> >>>are the delimiters \lgroup and \rgroup supported in MkIV?
> >>>This
> >>>
> >>>\starttext
> >>>$$\bigg\lgroup\dots\bigg\rgroup$$
> >>>\stoptext
> >>>
> >>>is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
> >>>MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
> >>>delimiters are not shown. (By the way, the same holds true for
> >>>\rmoustache and \lmoustache.)
> >>
> >>>Am I missing something?
> >>
> >>No. The math mappings of virtual fonts are incomplete. The symbols
> >>should work correctly with unicode math fonts like cambria, asana,
> >>and xits. But, it appears that lgroup and rgroup are missing from
> >>xits (Khaled?)
> >
> >There are, but context is looking for the wring character; it is looking
> >for U+3014 (which I think is a CJK bracket and does not look like
> >\lgroup either) while it should be looking for U+27EE (whose Unicode
> >annotation precisely says "lgroup"):
> >
> >\setupbodyfont[xits]
> >\starttext
> >$$\bigg\lgroup\dots\bigg\rgroup$$
> >\def\lgroup{\Udelimiter "4 "0 "27EE}
> >\def\rgroup{\Udelimiter "4 "0 "27EF}
> >$$\bigg\lgroup\dots\bigg\rgroup$$
> >\stoptext
> >
> >It was not extensible though, the version in git now grow, but starts
> >with a relatively large size, check and tell me if it should be smaller.
> 
> Looks OK to me, but I am not really an expert on the shapes of the
> symbols. Can you also make lmoustache and rmoustache extensible?

Should be now.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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Re: \lgroup in mkIV

[Daniel Schopper]

Just tried the new beta, works perfectly!
Thank you very very much!


Am 09.01.11 04:24, schrieb Aditya Mahajan:
> On Sat, 8 Jan 2011, Khaled Hosny wrote:
>
>> On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
>>> On Sat, 8 Jan 2011, Daniel Schopper wrote:
>>>
>>>> Hi,
>>>> are the delimiters \lgroup and \rgroup supported in MkIV?
>>>> This
>>>>
>>>> \starttext
>>>> $$\bigg\lgroup\dots\bigg\rgroup$$
>>>> \stoptext
>>>>
>>>> is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
>>>> MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
>>>> delimiters are not shown. (By the way, the same holds true for
>>>> \rmoustache and \lmoustache.)
>>>
>>>> Am I missing something?
>>>
>>> No. The math mappings of virtual fonts are incomplete. The symbols
>>> should work correctly with unicode math fonts like cambria, asana,
>>> and xits. But, it appears that lgroup and rgroup are missing from
>>> xits (Khaled?)
>>
>> There are, but context is looking for the wring character; it is looking
>> for U+3014 (which I think is a CJK bracket and does not look like
>> \lgroup either) while it should be looking for U+27EE (whose Unicode
>> annotation precisely says "lgroup"):
>>
>> \setupbodyfont[xits]
>> \starttext
>> $$\bigg\lgroup\dots\bigg\rgroup$$
>> \def\lgroup{\Udelimiter "4 "0 "27EE}
>> \def\rgroup{\Udelimiter "4 "0 "27EF}
>> $$\bigg\lgroup\dots\bigg\rgroup$$
>> \stoptext
>>
>> It was not extensible though, the version in git now grow, but starts
>> with a relatively large size, check and tell me if it should be smaller.
>
> Looks OK to me, but I am not really an expert on the shapes of the
> symbols. Can you also make lmoustache and rmoustache extensible?
>
> Hans, I am attaching the patch for char-def.lua that corrects the
> location of lgroup and rgroup. I still do not know how to fix this for
> lm virtual math font.
>
> Aditya
>
>
>
> ___________________________________________________________________________________
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