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Re: getting keywords in lua5.2

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Solved the issue with
setfenv = setfenv or function(f, t)
 f = (type(f) == 'function' and f or debug.getinfo(f + 1, 'f').func)
 local name
 local up = 0
 repeat
 up = up + 1
 name = debug.getupvalue(f, up)
 until name == '_ENV' or name == nil
 if name then
debug.upvaluejoin(f, up, function() return name end, 1) -- use unique upvalue
 debug.setupvalue(f, up, t)
 end
end
getfenv = getfenv or function(f)
 f = (type(f) == 'function' and f or debug.getinfo(f + 1, 'f').func)
 local name, val
 local up = 0
 repeat
 up = up + 1
 name, val = debug.getupvalue(f, up)
 until name == '_ENV' or name == nil
 return val
end
found in http://lua-users.org/lists/lua-l/2010-06/msg00313.html
But I keep thinking that may be there is a better way to do this task in lua52
Best
victor

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