On Tue, Nov 12, 2024 at 07:52 (+0100), Mikael Sundqvist wrote:

> Hi,

> On Tue, Nov 12, 2024 at 12:20 AM Jim <zlists+cont...@jdvb.ca> wrote:

>> On Mon, Nov 11, 2024 at 23:36 (+0100), Wolfgang Schuster wrote:

>>> Jim schrieb am 11.11.2024 um 22:49:
>>>> On Mon, Nov 11, 2024 at 21:30 (+0100), Wolfgang Schuster wrote:

>>>>> Jim schrieb am 11.11.2024 um 19:34:
>>>>> > Hi,
>>>>> >
>>>>> > I would expect (*cough*)
>>>>> >
>>>>> > \starttext
>>>>> > 2\inch
>>>>> > \stoptext
>>>>> >
>>>>> > to output something like
>>>>> >
>>>>> > 2"
>>>>> >
>>>>> > with some appropriate typographic symbols following the 2.  Instead, I 
>>>>> > get
>>>>> > a 2 with a large prime symbol down lower than a prime symbol should be, 
>>>>> > and
>>>>> > then a second prime symbol at about the correct size and at about the 
>>>>> > right
>>>>> > distance up from the baseline.

>>>>> \setupbodyfont[pagella]

>>>>> \starttext

>>>>> \unit{2 arcminute}
>>>>> \unit{2 arcsecond}

>>>>> \blank

>>>>> 2\utfchar{0x2032}
>>>>> 2\utfchar{0x2033}

>>>>> \blank

>>>>> 2′ 2″

>>>>> \stoptext

>>>> Wolfgang,

>>>> thanks very much for that example.

>>>> However, while it does show me how to get the glyph I am looking for, I am
>>>> left wondering whether there is any way to do it without switching my font
>>>> from the default.  (And whether \inch is broken, or whether there is an
>>>> implicit assumption about font characteristics when using that macro.)

>>>> I hate to go to the well too often, but would you care to comment
>>>> specifically about \inch and the default font?

>>>> (If there is some document whose contents would enlighten me about this,
>>>> I'd be happy to get a pointer to it.)


>>> This is a problem for the math team.

>>> The default font "Latin Modern" fakes the symbol with primes but the output
>>> with LMTX is wrong here (old MkIV has the correct symbol) as can be seen
>>> below.

>>> \starttext

>>> % Latin Modern uses \def\inch{\mathematics{\prime\prime}}

>>> 2\m{\prime\prime}

>>> % 2\m{^\doubleprime}

>>> \stoptext

>> Thanks for confirming that there is a problem.

>> Is it safe to assume that this thread will get the attention of the math
>> team, so that they will put the issue on their To-Do list?  If not, I will
>> cheerfully file a bug report (at least if/when I find out where such a
>> report should be sent).

>> Jim

> I will talk to Hans about it. The funny thing is that \m
> {f\prime\prime} works as expected. So, it is puting primes "on
> nothing" that needs to be considered. It seems to work in (many) other
> fonts, so, we'll have to look at modern and what is special there.

Thanks Mikael,

I appreciate it.

At the moment I have a work around which creates a 0-width box with the
height of a digit, and then (in math mode) \prime\prime-ing that box.

                                        Jim
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