[NTG-context] Re: \inch not doing the expected thing (what I expect, anyway).

[Jim <zlists+context@jdvb.ca>]

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
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