Re: lua libraries

[David Given <dg@...>]

On 16/01/11 10:12, Axel Kittenberger wrote:
[...]
> * Its easy enough to create similar functionality with Lua code.

See line 1452 and down here:

http://primemover.svn.sourceforge.net/viewvc/primemover/pm/src/pm.lua?revision=141&view=markup

That's the standard logic I use for all my apps. It handles short
options (-h), long options (--help), options with arguments (-ofoo and
--output foo), and non-option arguments anywhere.

The main code that makes it all work is at line 1584 and is 30 lines
long, so it's hardly worth turning into a library.

It doesn't handle --output=foo arguments and glued-together short
options (as in tar -xvzf), but could probably be made to without much
effort; I never use these, so didn't feel any urge to scratch that
particular itch.

The only bit of the code that's possibly not clear from reading is that
each handler function gets passed a potential option argument, and
returns 0 or 1 whether it was consumed or not.

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