From: Austin Ziegler <austin@...>
Date: 2002-12-14T14:27:22+09:00
Subject: Re: [RCR] Global Regexp Match Mechanism (//g)

On Sat, 14 Dec 2002 12:45:21 +0900, nobu.nokada@softhome.net wrote:
> Hi,
> 
> At Sat, 14 Dec 2002 11:53:20 +0900,
> Austin Ziegler wrote:
>> Okay; since 90% of what we need is present, why not add a new
>> method to Regexp, #gmatch(str, pos = nil, flags = nil). Adding
>> pos to #match seems a poor fit because of the flags argument
>> already present.
> Regexp#match in present takes only str.

Sorry, I was confusing #match and ::new (: You're right. #gmatch
isn't necessary.

>> Also, if a MatchData is passed as str, it should implicitly
>> call MatchData#end for pos unless pos is non-nil. IMO, being
>> explicit about doing a //g-type match is a Good Thing.
> MatchData as String? Well, in such case I'd expect matching
> to $&(equals $~.to_s).

Actually, I was thinking something like:

  def gmatch(str, pos = nil)
    if str.class == MatchData
      if pos.nil?
        match(str.string, str.end(0))
      else
        match(str.string, pos)
      end
    else
      match(str, pos)
    end
  end
      
I understand that checking the class is considered a bad thing, so
this should be viewed as a model, only.

-austin
-- Austin Ziegler, austin@halostatue.ca on 2002.12.14 at 00.19.50