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if not modules then modules = { } end modules ['file-syn'] = {
version = 1.001,
comment = "companion to file-syn.mkvi",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
environment.filesynonyms = environment.filesynonyms or { }
local filesynonyms = environment.filesynonyms
local settings_to_array = utilities.parsers.settings_to_array
local findfile = resolvers.findfile
local implement = interfaces.implement
storage.register("environment/filesynonyms", filesynonyms, "environment.filesynonyms")
local function truefilename(name)
local realname = filesynonyms[name] or name
if realname ~= name then
return truefilename(realname)
else
return realname
end
end
environment.truefilename = truefilename
function environment.definefilesynonym(name,realname)
if name and realname then
local names = settings_to_array(name)
for i=1,#names do
local name = names[i]
local synonym = filesynonyms[name]
if synonym then
interfaces.showmessage("files",1,{ name or "?", realname or "?", synonym or "?" })
end
filesynonyms[name] = realname
end
end
end
function environment.definefilefallback(name,alternatives)
if name and alternatives then
local names = settings_to_array(alternatives)
for i=1,#names do
local realname = findfile(names[i])
if realname ~= "" then
filesynonyms[name] = realname
break
end
end
end
end
implement {
name = "truefilename",
public = true,
actions = { truefilename, context },
arguments = "argument"
}
implement {
name = "definefilesynonym",
public = true,
protected = true,
actions = environment.definefilesynonym,
arguments = "2 optionals"
}
implement {
name = "definefilefallback",
public = true,
protected = true,
actions = environment,definefilefallback,
arguments = "2 optionals"
}
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