On 11/13/2024 11:03 AM, Marco Patzer wrote:
On Mon, 11 Nov 2024 21:30:15 +0100
Wolfgang Schuster <wolfgang.schuster.li...@gmail.com> wrote:

\unit{2 arcsecond}

Arcseconds might print the correct glyph, but would be semantically
wrong. I believe the correct approach would be:

   \unit{2 inch}

The question then remains how to configure \unit{2 inch} to produce
(depending on the requirements):

   2 in   or
   2"

After 25 hours of discussion and 18 attempts the math team (whoever that is) has decided that this is good enough:

\permanent\protected\def\fakeminute
  {\dontleavehmode
   \begingroup
   \doifelseitalic
     {\scratchwidth\fontcharwd\font\singlequoteasciicode
      \hpack \s!to 1.2\scratchwidth \bgroup
        \glyphslant\plustwohundred
        \glyph \s!xoffset -0.6\scratchwidth\singlequoteasciicode
      \egroup}%
     {\scratchwidth\fontcharwd\font\singlequoteasciicode
      \hpack \s!to 1.1\scratchwidth \bgroup
         \glyphslant\plusfivehundred
        \glyph \s!xoffset -\scratchwidth\singlequoteasciicode
      \egroup}%
   \endgroup}

\permanent\protected\def\fakesecond
  {\dontleavehmode
   \begingroup
   \doifelseitalic
     {\scratchwidth\fontcharwd\font\singlequoteasciicode
      \hpack \s!to 1.7\scratchwidth \bgroup
        \glyphslant\plustwohundred
        \glyph \s!xoffset -0.6\scratchwidth\singlequoteasciicode
        \glyph \s!xoffset -1.1\scratchwidth\singlequoteasciicode
      \egroup}%
     {\scratchwidth\fontcharwd\font\singlequoteasciicode
      \hpack \s!to 1.6\scratchwidth \bgroup
        \glyphslant\plusfivehundred
        \glyph \s!xoffset    -\scratchwidth\singlequoteasciicode
        \glyph \s!xoffset -1.5\scratchwidth\singlequoteasciicode
      \egroup}%
   \endgroup}


\permanent\protected\def\minute{\iffontchar\font\textminute\textminute\else\fakeminute\fi}
\permanent\protected\def\second{\iffontchar\font\textsecond\textsecond\else\fakesecond\fi}

\aliased\let\inch\second


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