From: Pablo Rodriguez <oinos@gmx.es>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: does font expansion break -char.width?
Date: Sun, 17 May 2020 21:06:53 +0200 [thread overview]
Message-ID: <6afc0fd4-61bf-35f6-4560-5625b6a0ee5c@gmx.es> (raw)
Dear list,
in this sample for underscore hyphenation (which comes from Hans), font
expansion breaks char.width and displaces the underscore:
\startluacode
function document.addfunnyhyphen(tfmdata)
local underscore = utf.byte("_")
local char = tfmdata.characters[underscore]
if not char then return end
tfmdata.characters[0xFE000] = {
width = 0,
height = 0,
depth = 0,
commands = {
{ "right", -char.width },
{ "down", char.depth },
{ "slot", 1, underscore },
}
}
end
utilities.sequencers.appendaction("aftercopyingcharacters",
"after","document.addfunnyhyphen")
\stopluacode
\definehyphenationfeatures
[underscore]
[righthyphenchar="FE000]
\setuphyphenation
[method=traditional]
\unexpanded\def\sha#1%
{\begingroup\tt
\sethyphenationfeatures[underscore]%
#1%
\endgroup}
\definefontfeature[default][default][expansion=quality]
\setupalign[hanging, hz]
\definefontfamily[mainface][tt][Cousine][scale=0.85]
\setupbodyfont[mainface]
\starttext
\hsize\zeropoint
\sha{\dorecurse{25}{asdfasdfasdfaeasfae}}
\stoptext
I’m using latest from 2020.05.12 16:21.
Have I hit a bug or am I missing something?
Many thanks for your help,
Pablo
--
http://www.ousia.tk
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reply other threads:[~2020-05-17 19:06 UTC|newest]
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