[ANN] compat_load - Lua 5.2 compatable load/loadfile for Lua 5.1
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- Subject: [ANN] compat_load - Lua 5.2 compatable load/loadfile for Lua 5.1
- From: David Manura <dm.lua@...>
- Date: 2012年1月21日 17:46:43 -0500
The "compat_load" module [1] provides Lua 5.2 compatible `load` and
`loadfile` functions for use in Lua 5.1:
-- If you wish to avoid dependence on this module in Lua 5.2, do this:
local CL = pcall(load, '') and _G or require 'compat_load'
local load = CL.load
local loadfile = CL.loadfile
-- The following now works in both Lua 5.1 and 5.2:
assert(load('return 2*pi', nil, 't', {pi=math.pi}))()
assert(loadfile('ex.lua', 't', {print=print}))()
This module might be merged into a more general Lua 5.2 compatibility
library (e.g. a full reimplementation of Lua 5.2 `_G`). However,
`load/loadfile` perhaps are among the more cumbersome functions not to
have.
For related work see [2].
[1] https://gist.github.com/1654007
[2] http://lua-users.org/wiki/LuaVersionCompatibility