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From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: new trickery
Date: Fri, 15 Mar 2013 00:39:50 +0100	[thread overview]
Message-ID: <51425FC6.2080809@wxs.nl> (raw)

Hi,

There is a new experimental feature and (at least for now) it's also 
called \feature (maybe not the best name).

Many fonts have language dependent features. There are also features 
that one only wants to enable in small text snippets. For this we have 
\addff etc but these don't accumulate. The next example demonstrates an 
accumulator.

\setupbodyfont[pagella]

\starttext

% When the (again experimental) setup for 'font' is used, the
% features will also adapt themselves to the language. I'm
% still considering on how to deal with the main language.

% \definefontfeature[nl][language=nld,script=latn]
\setuplanguages[font=auto]
% \setuplanguage [default][font=auto]
% \setuplanguage [nl][font=auto]

% We need to make a nice set of 'simple' switchers.

\definefontfeature[f:smallcaps][smcp=yes]
\definefontfeature[f:nocaps]   [smcp=no]
\definefontfeature[f:oldstyle] [onum=yes]
\definefontfeature[f:newstyle] [onum=no]

% watch how features accumulate

\startTEXpage[offset=10pt]
     fijn fietsen 123
     \feature{f:oldstyle}
     fijn fietsen 123
     \feature{f:smallcaps}
     fijn fietsen 123
     \feature{f:oldstyle}
     fijn fietsen 123
     \start
     \nl % \feature{nl}
     fijn fietsen 123
     \de
     fijn fietsen 123
     \stop
     fijn fietsen 123
     \feature{f:newstyle}
     fijn fietsen 123
     \feature{f:nocaps}
     fijn fietsen 123
\stopTEXpage

% watch how lm has contextual lookups for ligatures
% that depend on the language

\startTEXpage[offset=10pt]
     \definedfont[lmroman10-regular*default]
     fijn fietsen
     \nl
     fijn fietsen
     \de
     fijn fietsen
\stopTEXpage

\stoptext

This mechanism is (just as \addff cum suis) somewhat slower but as long 
as it's used grouped, performance is quite ok.

Hans


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             reply	other threads:[~2013-03-14 23:39 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-14 23:39 Hans Hagen [this message]
2013-03-15  2:08 ` Idris Samawi Hamid ادريس   سماوي حامد
2013-03-15  4:18   ` Idris Samawi Hamid ادريس   سماوي حامد
2013-03-15  8:35     ` Hans Hagen
2013-03-15 17:16       ` Jonathan Barchi
2013-03-15 18:29         ` Hans Hagen
2013-03-15 11:07     ` Hans Hagen
2013-03-15 18:11       ` Idris Samawi Hamid ادريس   سماوي حامد
2013-03-15 18:29         ` Hans Hagen
2013-03-15 18:30         ` Hans Hagen
2013-03-15  8:31   ` Hans Hagen

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