On 5/19/2017 9:34 AM, Ulrike Fischer wrote:
In extensions-001.tex
(http://minimals.metatex.org/current/context/test/doc/context/tests/mkiv/fonts/extensions-001.tex)
there is an example how to add or change the kern between two chars:
fonts.handlers.otf.addfeature {
name = "ktest",
type = "kern",
data = {
a = { b = -500 },
}
}
Can this be used to implement also a "Single adjustment positioning"
which would effectivly change the width of character?
(http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html#6.a)
(I tried a few probable variants but got either errors or no effect
at all).
I'll add support for 'single' to user features:
\startluacode
fonts.handlers.otf.addfeature {
name = "stest",
type = "single",
data = {
a = { -30, 0, -50, 0 },
}
}
\stopluacode
\definefontfeature[whatever][default][stest=yes]
\starttext
\definedfont[Serif*whatever] \vl a\vl
\stoptext
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