Dear list,
this is a follow-up on Ulrike's post, so I'm just hijacking the thread.
How can I use the Lua fonts in Plain? It works fine if I just remove
ConTeXt-specific actualtext bits but as soon as I add features to the
font, the name resolution fails with something like
! Font
\mainfont=file:fonts-demo-rule.lua:original=file:texgyrepagella-regular.
otf not loadable: metric data not found or bad.
MWE is below as always.
Cheers, Henri
----------- test.tex -----------
\input luaotfload.sty
\font\mainfont="file:fonts-demo-rule.lua":original=file:texgyrepagella-regular.otf
\mainfont
This code is stored in fonts-demo-rule.lua and we can load that font in
the usual way,
by specifying a filename.
\bye
----------- fonts-demo-rule.lua -----------
return function(specification)
local features = specification.features.normal
local name = features.original or "dejavu-serif"
local option = features.option -- we only support "line"
local size = specification.size -- always set
local detail = specification.detail -- e.g. default
if detail then
name = name .. "*" .. detail
end
local f, id = fonts.constructors.readanddefine(name,size)
if f then
f.properties.name = specification.name
f.properties.virtualized = true
f.fonts = {
{ id = id },
}
for s in string.gmatch("aeuioy",".") do
local n = utf.byte(s)
local c = f.characters[n]
if c then
local w = c.width or 0
local h = c.height or 0
local d = c.depth or 0
if option == "line" then
f.characters[n].commands = {
{ "rule", option == "line" and size/10, w },
}
else
f.characters[n].commands = {
{ "down", d },
{ "rule", h + d, w },
}
end
else
-- probably a real bad font
end
end
end
return f
end
On 04/05/18 06:26, Ulrike Fischer wrote:
I'm trying to run one of the examples of fonts-mkiv.pdf
I copied the code from 4.5 Lua fonts to a file
"fonts-demo-rule.lua". This lua file is in the same directory as my
test file.
Then I tried
\definefont
[MyRuleFont]
[file:fonts-demo-rule.lua*default sa 1]
\starttext
{\MyRuleFont So when we use it we get text }
\stoptext
but I get in the log
fonts > defining > forced type 'lua' of 'fonts-demo-rule' not found
fonts > defining > font with asked name 'fonts-demo-rule' is not
found using lookup 'file'
fonts > defining > unknown font 'fonts-demo-rule', loading aborted
fonts > defining > unable to define 'fonts-demo-rule.lua' as
'MyRuleFont--0'
The file itself is found (I can see its path later on). What is
going on here?
___________________________________________________________________________________
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://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
