Re: Kerning between primes and left parenthesis (again)

["Mikael P. Sundqvist" <mickep@gmail.com>]

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
>>> -----------------------------------------------------------------
>>>
>>> ___________________________________________________________________________________
>>> 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
>>>
>>> ___________________________________________________________________________________
>>
>>
>> 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?

Again, thanks for your time, it is very much appreciated.

/Mikael
___________________________________________________________________________________
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
___________________________________________________________________________________