Re: Kerning between primes and left parenthesis (again)

[Hans Hagen <pragma@wxs.nl>]

On 7/31/2017 8:02 PM, Mikael P. Sundqvist wrote:
> On Mon, Jul 31, 2017 at 5:37 PM, Hans Hagen <pragma@wxs.nl> wrote:
>> On 7/31/2017 11:21 AM, Mikael P. Sundqvist wrote:
>>>
>>> On Thu, Jul 20, 2017 at 2:53 PM, Hans Hagen <pragma@wxs.nl> wrote:
>>>>
>>>> On 7/20/2017 7:18 AM, Mikael P. Sundqvist wrote:
>>>>
>>>>> Den 12 juli 2017 10:17 fm skrev "Mikael P. Sundqvist" <mickep@gmail.com
>>>>> <mailto:mickep@gmail.com>>:
>>>>>
>>>>>       Dear Hans,
>>>>>
>>>>>       now, in luatex 1.05, that the primes are "constructed" in new
>>>>> manner,
>>>>>       I wonder if there is a way to specify in a goodie file the kerning
>>>>>       between characters, in particular primes and the left parenthesis?
>>>>>
>>>>>       I tried
>>>>>
>>>>>                kernpairs = {
>>>>>                   [0x2032] = {[0x0028] = -1000, }, -- prime and (
>>>>>                },
>>>>>
>>>>>       but that does not seem to have any effect.
>>>>>
>>>>>       The pre-1.05 modification
>>>>>
>>>>>                dimensions = {
>>>>>                    default = {
>>>>>                        [0x2044] = { xoffset = 275, width = 600 },
>>>>>                        [0x2032] = { xoffset = 50, width = 290 }, -- prime
>>>>>                        [0x2033] = { xoffset = 50, width = 690 }, --
>>>>> double
>>>>>       prime
>>>>>                        [0x2034] = { xoffset = 50, width = 1090}, --
>>>>> triple
>>>>>       prime
>>>>>                        [0x2057] = { xoffset = 50, width = 1490}, --
>>>>>       quadruple prime
>>>>>                },
>>>>>            },
>>>>>
>>>>>       (which is a non-optimal way of solving this issue since it has side
>>>>>       effects) does not change anything anymore.
>>>>>
>>>>>       So, is there now a way to do this cleanly now that the mechanism is
>>>>>       changed?
>>>>>
>>>>>       /Mikael
>>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>> should I interpret the silence that this is currently not possible, or
>>>>> that you, Hans, is completely fed up with this subject? :-)
>>>>
>>>>
>>>> you rule out the possibility that i have other things to do
>>>>
>>>> anyway, use
>>>>
>>>>       0xFE932
>>>>
>>>> etc instead as primes get remapped
>>>>
>>>> -----------------------------------------------------------------
>>>>                                             Hans Hagen | PRAGMA ADE
>>>>                 Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>>>>          tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
>>>> -----------------------------------------------------------------
>>>>
>>>> ___________________________________________________________________________________
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>>>
>>>
>>> I'm sorry but I cannot get it to work.
>>>
>>> %%% my local lucida-opentype-math.lfg, located in the same directory
>>> as the tex file (and loaded)
>>> ----- kern_250 = { bottomright = { { kern = -250 } }, force = true }
>>>
>>> local function FixRadicalDisplayStyleVerticalGap(value,target,original)
>>>       local o = original.mathparameters.RadicalVerticalGap -- 50
>>>       return 2 * o * target.parameters.factor
>>> end
>>>
>>> return {
>>>       name = "lucida-opentype-math",
>>>       version = "1.00",
>>>       comment = "Goodies that complement lucida opentype.",
>>>       author = "Hans Hagen",
>>>       copyright = "ConTeXt development team",
>>>       mathematics = {
>>>           parameters = {
>>>               RadicalDisplayStyleVerticalGap =
>>> FixRadicalDisplayStyleVerticalGap,
>>>           },
>>>           kernpairs = {
>>>              [0x1D44E] = {[0x1D44F] = 1000,}, -- 𝑎𝑏 demo
>>>              [0xFE932] = {[0x0028] = 1000,} -- remapped prime and (
>>>           },
>>> }
>>> }
>>> %%%
>>>
>>> %%% the tex file
>>> \setupbodyfont[lucidaot]
>>> \setupmathematics[kernpairs=yes]
>>>
>>> \starttext
>>> $f'(x)ab$
>>> \stoptext
>>> %%%
>>>
>>> The result is attached. It works ok for the pair ab, but not for prime
>>> and (. Is the ( also remapped (while greping for it in the source, I
>>> could not find any clue).
>>>
>>> Maybe it is better to ping the maintainers of the font?
>>
>> just change the dimensions
>>
>>          dimensions = {
>>              default = { -- experimental values
>>                  [0x2044] = { xoffset = 275, width = 600 },
>>               -- [0x2032] = { yoffset = -10 },
>> [0xFE932] = { width = 200 },
>> [0xFE933] = { width = 500 },
>> [0xFE934] = { width = 800 },
>>              },
>>          },
>>
>>
>>
>> -----------------------------------------------------------------
>>                                            Hans Hagen | PRAGMA ADE
>>                Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>>         tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
>> -----------------------------------------------------------------
>> ___________________________________________________________________________________
>> 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://context.aanhet.net
>> archive  : https://bitbucket.org/phg/context-mirror/commits/
>> wiki     : http://contextgarden.net
>> ___________________________________________________________________________________
> 
> Dear Hans,
> 
> thank you, that solution worked well! May I suggest to add something like
> 
>          dimensions = {
>              default = {
>                [0xFE932] = { width = 150 }, -- prime
>                [0xFE933] = { width = 435 }, -- double prime
>                [0xFE934] = { width = 720 }, -- triple prime
>                [0xFE957] = { width = 1005 }, -- quadruple prime
>              },
>          },
> 
> (or the values 200, 500, 800, 1100 if you prefer) to the font goodie
> file for lucida in the distribution?
too narrow might clash with superscripts .. did you do more tests than 
the ( ?

there are also reverse primes

Hans



-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
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