From: "David A. Black" <dblack@...>
Date: 2004-08-20T12:13:25+09:00
Subject: Re: MatchData.each method.....no "next" ?

Hi --

On Fri, 20 Aug 2004, Zach Dennis wrote:

> I've got a block of code:
> 
> process = proc { |str,val|
>         process_hsh = { "String" => true , "Fixnum" => true }
>         re = /\((.*)\)|\{(.*)\}/;
>         m = str.scan( re )
>         if( process_hsh["#{val.class.to_s}"] ) then
>           m.each{ |v|
>             next if( not v); #<-----------------THIS IS THE CULPRIT

[...]

> Does MatchData not take advantage of iterating via "next" ? Thanks,

m isn't a MatchData object; it's an Array (returned by scan).  'next'
definitely works; if it doesn't move to the next iteration, then "not
v" is not true.  I think you may be testing for empty strings with
'not', which doesn't work because "" is true.  If that turns out to be
the problem, you can do:

  next if v.empty?


David

-- 
David A. Black
dblack@wobblini.net