From: nobu.nokada@...
Date: 2004-11-12T21:50:44+09:00
Subject: Re: From getoptlong to optparse

Hi,

At Fri, 12 Nov 2004 20:28:27 +0900,
Robert Klemme wrote in [ruby-talk:120033]:
> > Then loop subcommand parser until ARGV becomes empty using
> > #order! instead of #parse!.
> 
> I got lost somewhere in the diff below. :-)  What eaxtly is the difference
> between "order!" and "parse!"?

OptionParser has two kinds of behaviors; "in order" and
"permutation" mode.  The former (#order! method) stops as soon
as a non-option argument is encountered and is same as
getopt_long(3) when the environment variable POSIXLY_CORRECT is
set, and the latter (#permute! method) processes all option
arguments at first and leaves non-option arguments.  #parse! 
method switches the two behavior by the environment variable.

-- 
Nobu Nakada