On 8/18/2025 3:10 PM, Henning Hraban Ramm wrote:
How would you resolve shell/environment variables like $TEXMFHOME or ~
($HOME) in Lua code?
dir.expandname doesn’t do that.
Search and replace iterating over os.env?
These tex related variables are often encoded in a special way so you
need to do more (and also know hoe that coding works). Anyway, it's not
the kind of code one sees / uses everyday (but it's nearly 20 years old
now so quite stable):
\startluacode
local function whatever(v)
local p = resolvers.expandedpathlistfromvariable(v)
inspect(p)
for i=1,#p do
print(resolvers.resolve(p[i]))
end
for i=1,#p do
print(resolvers.cleanpath(resolvers.resolve(p[i])))
end
end
whatever("TEXMFHOME")
whatever("TEXMF")
\stopluacode
which of course you will now wikify ...
mtxrun --help
show some options to explore variables and paths
(we're operating in TDS but context has a bit more abstraction so that
we can relocate trees easier)
Hans
Hans
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