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- Subject: Re: Equivalent to table.move for Lua 5.1
- From: Hisham <h@...>
- Date: Tue, 16 Feb 2021 02:57:35 -0300
On Sun, 14 Feb 2021 at 12:36, Lorenzo Donati <firstname.lastname@example.org
Trying to spare a little time here.
I'm writing a little library for my stuff which will make use of Lua 5.3
table.move but should also be usable with Lua 5.1.
I could write an ad-hoc Lua 5.1-compatible fallback function, but I'd
prefer not to waste time reinventing the wheel (and thoroughly testing
it with all corner cases)!
So I thought that maybe a /well-tested/ /pure-Lua/ replacement for
table.move has already been posted somewhere that I could copy-paste
into my code.
I don't care if it is a bit slow (as long as it is not utterly
wasteful), but it should be well tested and/or "peer-reviewed" and
should replicate table.move semantics in the details (I wouldn't want
unexpected differences between Lua 5.3 and Lua 5.1 scripts).
Any pointers appreciated.
What you're looking for is the compat-5.3 library:https://github.com/keplerproject/lua-compat-5.3
It includes based implementations of many compatibility functions for performance but many functions (including table.move) have pure-Lua fallbacks. If you're using LuaRocks, including compat53 as a dependency and a `require "compat53"` in your project is sufficient (it is a no-op in Lua 5.3+), no need to resort to copy-pasting.