[pdftex] Character protruding
Wulf at Gerolf.de
Tue Dec 18 01:06:41 CET 2001
At 12/15/2001, I asked:
> Can I deduce \rpcode for protruding from the character width or from
> \fontdimen parameters?
Thierry Bouche wrote:
>Of course not, rpcode is something like kern pairs, it has to be
>visually twickled font per font.
I have feared something like this because TeX doesn't know what the
glyphs look like...
>Don't focus on the right margin (and hyphens) exclusively, as
>some dumb DTP programs, if you want optical justification, you need
>to consider both margins, and chars like v or w should have a
>symetrical treatment, etc.
I see, you want to do it perfectly. My first impression was that it
already helps a lot to simply shift hyphen, point, comma completely into
the margin. Would you say that it isn't possible to give rules of thumb
for some worst cases, so that I can use different fonts?
>Here I mention french because the thin space before double punctuation
>makes that you can't treat it the same way (putting ot almost entirely
>into the margin) as a point or a coma.
Je ne comprends pas la deuxième partie de cette phrase. Pouvez-vous me
donner un exemple?
Hans Hagen wrote:
> You can best look into the example file that comes with pdftex since
> that reflects the latest methods. Keep in mind that protruding is part
> of thanh's experiments and that in a coming cleanup of code things may
> change (actually that did change from % of char width into % of em).
Thank you for these hints. I'm going to study "protcode.tex" and
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