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if not modules then modules = { } end modules ['luatex-swiglib'] = {
version = 1.001,
comment = "companion to luatex-swiglib.tex",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local savedrequire = require
local libsuffix = os.type == "windows" and ".dll" or ".so"
local pathsplit = "([^" .. io.pathseparator .. "]+)"
function requireswiglib(required,version)
local library = package.loaded[required]
if library then
return library
else
local name = string.gsub(required,"%.","/") .. libsuffix
local list = kpse.show_path("clua")
for root in string.gmatch(list,pathsplit) do
local full = false
if type(version) == "string" and version ~= "" then
full = root .. "/" .. version .. "/" .. name
full = lfs.isfile(full) and full
end
if not full then
full = root .. "/" .. name
full = lfs.isfile(full) and full
end
if full then
local path, base = string.match(full,"^(.-)([^\\/]+)" .. libsuffix .."$")
local savedlibrary = package.loaded[base]
package.loaded[base] = nil
local savedpath = lfs.currentdir()
lfs.chdir(path)
library = package.loadlib(full,"luaopen_" .. base)
if type(library) == "function" then
library = library()
texio.write("<swiglib: '",required,"' is loaded>")
end
lfs.chdir(savedpath)
package.loaded[base] = savedlibrary
package.loaded[required] = library
return library
end
end
texio.write("<swiglib: '",name,"'is not found on '",list,"'")
end
texio.write("<swiglib: '",required,"' is not found>")
end
function require(name)
if string.find(name,"^swiglib%.") then
return requireswiglib(name)
else
return savedrequire(name)
end
end
function swiglib(name,version)
return requireswiglib("swiglib." .. name,version)
end
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