File

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−-- Prosody IM
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−-- Copyright (C) 2008-2011 Florian Zeitz
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−--
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−-- This project is MIT/X11 licensed. Please see the
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−-- COPYING file in the source package for more information.
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−--
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−-- luacheck: ignore 113/setfenv 113/loadstring
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−
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−local load, loadstring, setfenv = load, loadstring, setfenv;
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−local io_open = io.open;
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−local envload;
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−local envloadfile;
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−
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−if setfenv then
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−	function envload(code, source, env)
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−		local f, err = loadstring(code, source);
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−		if f and env then setfenv(f, env); end
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−		return f, err;
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−	end
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−
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−	function envloadfile(file, env)
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−		local fh, err, errno = io_open(file);
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−		if not fh then return fh, err, errno; end
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−		local f, err = load(function () return fh:read(2048); end, "@"..file);
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−		fh:close();
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−		if f and env then setfenv(f, env); end
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−		return f, err;
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−	end
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−else
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−	function envload(code, source, env)
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−		return load(code, source, nil, env);
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−	end
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−
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−	function envloadfile(file, env)
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−		local fh, err, errno = io_open(file);
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−		if not fh then return fh, err, errno; end
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−		local f, err = load(fh:lines(2048), "@"..file, nil, env);
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−		fh:close();
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−		return f, err;
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−	end
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−end
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−
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−return { envload = envload, envloadfile = envloadfile };