Re: Lua 5.0 and 5.1 together

[Diego Nehab <diego@...>]

Hi,

> 	A tricky init-file could do the job either:
> [... snip ...]

I agree it would be possible to design an init file that, say,
invoked a version-specific init file. It could look like this:

    local function varname(var, version)
        return "LUA_" .. version .. "_" .. var
    end

    local v = string.gsub(_VERSION, "^Lua (%d+)%.(%d+).*$", "%1_%2")
    local init = os.getenv(varname("INIT", v))
    if init then
        if string.sub(init, 1, 1) == '@' then
            dofile(string.sub(init, 2))
        else
            assert(loadstring(init, "=LUA_INIT"))()
        end
    end

    package.path = os.getenv(varname("PATH", v)) or package.path
    print(package.path)
    package.cpath = os.getenv(varname("CPATH", v)) or package.cpath
    print(package.cpath)

What do you think?

Regards,
Diego.