Thanks Patrick for your code.
Apparently we do the same things (except your code is simply better), so
there is no simple hard-coded function to do that. Which function I
think might be a good idea, especially if it can process real TeX input,
e.g. string_tolist("a\kern1em b"), perhaps with catcodes declared
beforehand. So I'm kind of feature-requesting here, yes, yes, can't deny.
Patrick, is it on purpose you don't set "n.prev = last"? Is it useless
or are you sure you'll simply never manipulate those node lists?
Thanks for lang.hyphenate() -- I realize there are areas of the manual I
still haven't laid an eye on.
Best,
Paul
Le 18/11/2010 22:49, Patrick Gundlach a écrit :
Hi Paul,
i do something like this (pseudo code):
local match = unicode.utf8.match
for s in string.utfvalues(str) do
char = unicode.utf8.char(s)
if match(char,"%s") and last and last.id == 10 then -- is it 10, the glue
node??
-- double whitespace, \relax
elseif match(char,"%s") then -- ws
n = node.new("glue")
n.spec = node.new("glue_spec")
n.spec.width = space -- calculated somewhere else
n.spec.shrink = shrink
n.spec.stretch = stretch
if head then
last.next = n
else
head = n
end
last = n
else
n = node.new("glyph")
n.font = ... (set somewhere else)
n.char = s
n.lang = 0
n.left = tex.lefthyphenmin
n.right = tex.righthyphenmin
if head then
last.next = n
else
head = n
end
last = n
end
end
and then I use node.kerning() for kerning and lang.hyphenate() for inserting
disc nodes.
Patrick
