Re: Reading a conf file

[Russell Haley <russ.haley@...>]

Thanks Jerome, I'll check that out and appreciate the *for theft* clause!

Russ

On Wed, Sep 28, 2016 at 9:41 AM, Jerome Vuarand
<jerome.vuarand@gmail.com> wrote:
> 2016-09-28 6:41 GMT+01:00 Russell Haley <russ.haley@gmail.com>:
>> I've also considered just serializing/deserializing lua tables, but at
>> some point I have to support reading and changing standard conf files
>> (and eventually wpa_supplication too).
>
> What is "standard conf files"?
>
>> Any feedback would be dandy.
>
> Like others that already replied, I use the Lua parser for all my
> config files. I wrote a simple module that handles that:
> https://bitbucket.org/doub/config
>
> A typical usage example goes like this:
>
> local config = require 'config'
> local options = {
>     foo = 42,
>     bar = "hello",
>     baz = nil,
> }
> config.load(options, "myapp.conf")
> config.args(options, ...)
> if #options >= 1 then options.foo = options[1] end
> config.check("myapp", {
>     {type(options.foo)=='number', "invalid foo"},
> }, [[
> usage: myapp [options] <foo>
> options:
>     -foo <n>     a number
>     -bar <bar>  a name
> ]])
>
> I don't usually serialize config, but I have a serializer module
> there: https://bitbucket.org/doub/dump
>
> With it I would save the config like that:
>
> local dump = require 'dump'
> local file = io.open("myapp.conf", "wb")
> for k,v in pairs(options) do
>     file:write(k.." = "..dump.tostring(v).."\n")
> end
> file:close()
>
> Feel free to steal ideas, pieces of code or the whole thing. And I'd
> be happy to answer any question about it :D
>