From: noreply@...
Date: 2005-05-19T13:25:48+09:00
Subject: [ ruby-Bugs-1932 ] Regexp#+@ can't be overridden

Bugs item #1932, was opened at 2005-05-18 21:19
You can respond by visiting: 
http://rubyforge.org/tracker/?func=detail&atid=1698&aid=1932&group_id=426

Category: None
Group: None
Status: Open
Resolution: None
Priority: 3
Submitted By: caleb clausen (coatl)
Assigned to: Nobody (None)
Summary: Regexp#+@ can't be overridden

Initial Comment:
It seems that +/regex/ is always /regex/, and can't be overridden. /regex/.+@ can be overridden:

$ ruby -e 'p +//'
//

$ ruby -e 'p //.+@'
-e:1: undefined method `+@' for //:Regexp (NoMethodError)
$ ruby -e 'p(+//.+@)'
-e:1: undefined method `+@' for //:Regexp (NoMethodError)
$ ruby -e 'class Regexp; def +@; "+#{self}" end end;p(+//.+@)'
-e:1: undefined method `+@' for "+(?-mix:)":String (NoMethodError)
$ ruby -e 'class Regexp; def +@; "+#{self}" end end;p(+//)'
//
$ ruby -e 'class Regexp; def ~; "+#{self}" end end;p(~//)'
"+(?-mix:)"


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You can respond by visiting: 
http://rubyforge.org/tracker/?func=detail&atid=1698&aid=1932&group_id=426