On 4/6/2024 1:38 PM, Wolfgang Schuster wrote:
Henning Hraban Ramm schrieb am 06.04.2024 um 12:23:
Am 06.04.24 um 11:43 schrieb madiazm.eo...@gmail.com:
Hi everyone,
I'm a bit puzzled because I usually don't get an em-dash when I type
tree hyphens. If I use the command \emdash, no problem but when I use
the hyphens some days it works... and somedays I see three small
hyphens.
I tried it on overleaf and of ContextOnWeb with the same
inconsistency. If I create a new file it usually works right; but
when I overwrite an existing file subtituting a hyphen for three
where the dash should be I sometimes get it right and sometimes wrong.
It is not the pdf viewer since I get good or bad results in all, the
overleaf pdf preview tool, the context on web preview tool and the
mozilla integrated pdf viewer.
Am I missing something on the use of this ligature? (the question is
just out of curiosity, since I plan to create a command that adds a
hairspace after or before the dash, since I don't like it to stick to
some letters like "o".
Generally, “we” try to reduce active characters as much as possible,
that’s why -- and --- usually /don’t/ produce en or em dashes. You can
activate these ligatures as a font feature though (AFAIR
"latexhyphens", can’t find it…).
The name of the option has changes a few times and the current setting
is textcontrol=collapsehyphens.
Some editors and some fonts do automatical replacements.
In this case it could be the wrong symbol in the document, there are
many dashes in unicode which look similar in the input and output files.
\starttext
\startbuffer
\starttabulate[|T||||]
\NC U+0002D \NC - \NC -- \NC --- \NC\NR
\NC U+02011 \NC ‑ \NC ‑‑ \NC ‑‑‑ \NC\NR
\NC U+02012 \NC ‒ \NC ‒‒ \NC ‒‒‒ \NC\NR
\stoptabulate
\stopbuffer
\getbuffer
\setupbodyfont[pagella]
\getbuffer
\stoptext
detail: it is not a real fontfeature (as tlig in mkiv) but implemented
differently with a bit more control, so we have
\nohyphencollapsing
\dohyphencollapsing
etc too as control options. These collapsed hyphens are also configured
as valid hyphenation chars.
Hans
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