Hans Hagen <pra...@wxs.nl>
On 09/28/2012 11:46 AM, Hans Hagen wrote:
On 27-9-2012 21:27, Simo Ojala wrote:
This is a problem originally posted in TeX/StackExchange. However, since
I have not had any luck in finding a solution I post it here too. I am
confident that somebody here should know the answer.
http://tex.stackexchange.com/questions/73970/problem-with-context-mkiv-hebrew-and-ligatures
"Since I last played with the latest ConTeXt MkIV, there has been
introduced this new feature. It now seems to combine Hebrew characters
automatically when possible to ligatures. So for example. If I have a
word with following two characters:
U+05D5 (HEBREW LETTER VAV)
U+05BC (HEBREW POINT DAGESH OR MAPIQ)
ConTeXt will combine these to:
U+FB35 (HEBREW LETTER VAV WITH DAGESH)
However, I would need to disable this feature for a number of reasons.
For example, this breaks my little database query, because the query key
is changed before(?) macro gets it.
So if somebody would know how to turn this off and maybe also that what
has changed."
It depends on the font ... normally you can disable this by *not* using
the mark and mkmk features
Hans
Ok, I have now tried turning off all kinds of features without luck. So,
I tried putting together minimal test case. I suspect that there should
be done something more than just turn off some font features. However,
my ConTeXt skills are very limited so I can be wrong.
The goal is that the word passed from ConTeXt file remains as it is
written and gives unicode characters U+5e1, U+5d5, U+5bc and U+5e1. This
is what already happens when the word is in the lua file.
Simo
PS: In case this matters. My ConTeXt MkIV version is "2012.09.23 12:40".
It should be the latest for Ubuntu 12.04 LTS Precise Pangolin that is in
the Adam Reviczky's PPA.
%% testcase.tex
\definefontfeature[hebrew][arabic][script=hebr]
\definefont[dejavusans][name:dejavusans*hebrew at 26pt]
\setupdirections[bidi=global]
\starttext
\dejavusans
\def\Macro#1{\directlua{
dofile(resolvers.findfile("testcase.lua"))
userdata.testfunction("#1")
}}
\Macro{סוּס}
\blank[1cm]however, we can still color these independently\blank[0.5cm]
\color[red]{ס}\color[green]{ו}\color[blue]{ּ}\color[yellow]{ס}
\stoptext
-- testcase.lua
userdata = userdata or {}
function userdata.testfunction(word)
tex.sprint("\\blank[1cm]word passed by macro\\blank[0.5cm]")
for i = 1, unicode.utf8.len(word) do
tex.sprint("U+" .. string.format("%x",unicode.utf8.byte(word,i)) .. ":
" .. unicode.utf8.sub(word,i,i) .. "\\par" )
end
tex.sprint("\\blank[1cm]word written in lua file\\blank[0.5cm]")
word = "סוּס"
for i = 1, unicode.utf8.len(word) do
tex.sprint("U+" .. string.format("%x",unicode.utf8.byte(word,i)) .. ":
" .. unicode.utf8.sub(word,i,i) .. "\\par" )
end
end
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
