From: matz@... (Yukihiro Matsumoto)
Date: 2003-05-25T08:04:38+09:00
Subject: Re: [Q] Change in 1.8 String#=~ intentional?

Hi,

In message "[Q] Change in 1.8 String#=~ intentional?"
    on 03/05/24, "Warren Brown" <wkb@airmail.net> writes:

|    In converting some code from Ruby version 1.6.8 to 1.8, I found that the
|construct:
|
|"x" =~ "[x]"
|
|    has apparently changed behavior.  In version 1.6.8, String#=~ will
|convert a String argument into a Regexp.  In version 1.8, apparently this is
|now translated into a call to String#index.

|    Is this change intentional?  It would seem that this change would affect
|a lot of exsiting code in subtle, hard-to-find ways :o(

This is now under discussion in ruby-list.  The behavior will be
either

  * use String#index internally, with warning.
  * give warning to discourage using string as an argument.

I will have warning in 1.8.0 anyway for any incompatible changes,
at least I'm trying so.

							matz.