[bug #63018] [PATCH] make glyphs in ZD font accessible via their Unicode spellings

[Deri James]

Follow-up Comment #29, bug #63018 (group groff):

Dave.

I think the implied question is: When it is a separate make target (bug
#65698), if we wish to retain the epsilon kerns the make target must either
re-apply the shell script after the font generation, or these "gold" AFMs
should have the extra kerns added once before we pour aspic on them. The make
targe then gets run whenever afmtodit, the maps, or the encoding files, are
altered.

As far as I can tell the "slant" parameter does nothing for composite (e.g. a
glyph plus an accent glyph on top of each other) placement. What it does do is
affect both italic correction factors and the subscript correction, i.e. when
a font switches from roman to italic for example.

Branden.

You piqued my curiosity about Hungarian umlauts, so I took a peak at the list
archives. :-)

There are two issues with Gergő's predicament. His package was built with no
URW fonts whatsoever, even though the required fonts are sitting in
/usr/share/fonts/Type1/ as can be seen in the list of files supplied to Alex.
I know this because the pdf he supplied had absolutely no embedded fonts in
it, so if you cast your mind back to the games played with the URW font
detection during configure, he has the setup where only the base 14 pdf fonts
would be available (without warnings about missing fonts). The placement of
the umlauts is because the standard fonts lack the four individual glyphs, so
groff sends a composite:-

wx font 5 TR
f5
h13750
Ca"
to
wh13750
Ca"
tO
wh13750
Ca"
tu
wh13750
Ca"
tU

Where the U- foundry fonts have separate glyphs:-

wx font 42 U-TR
f42
h13750
Cu006F_030B
wh41250
Cu004F_030B
wh53460
Cu0075_030B
wh41250
Cu0055_030B

In the attached pdf you can see that in the U- fonts the height of the umlaut
is fitted to the height of the letter, since the glyph is custom designed. It
is always better to use a single glyph rather than composing a compose. I did
send him some information how to access those URW fonts by just replacing the
TR, TI... With 4 custom versions, but it was just an email, since I am no
longer on the list, so it may get filed as "junk".

Also, because of the big pointsize, it is easier to see what is happening. In
TI and TBI you can see the umlaut is slightly shifted to the right, this has
nothing to do with "slant" it is just an artifact of the probable
transformation applied to TR to arrive at TI when the font was designed.

(file #56036)

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File name: umlautTimes.pdf                Size: 27KiB
    <https://file.savannah.gnu.org/file/umlautTimes.pdf?file_id=56036>


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