Bug #1381: Confusing Encoding Error

• Status: Closed
• Assignee: naruse (Yui NARUSE)
• Target version: 1.9.2
• ruby -v: ruby 1.9.2dev (2009-04-13) [i386-darwin9.6.0]

[JEG2 (James Gray)]

=begin
When I reuse a Regexp object, the Encoding seems unchanged but an error message can report something different from what I am seeing:

 $ cat enc_error_bug.rb 
 re = /./
 puts re.encoding.name
 "a".encode("ASCII-8BIT") =~ re if $DEBUG
 puts re.encoding.name
 "a".encode("UTF-16BE") =~ re
 $ ruby enc_error_bug.rb 
 US-ASCII
 US-ASCII
 enc_error_bug.rb:5:in `=~': incompatible encoding regexp match (US-ASCII regexp with UTF-16BE string) (Encoding::CompatibilityError)
 	from enc_error_bug.rb:5:in `<main>'
 $ ruby -d enc_error_bug.rb 
 US-ASCII
 US-ASCII
 Exception `Encoding::CompatibilityError' at enc_error_bug.rb:5 - incompatible encoding regexp match (ASCII-8BIT regexp with UTF-16BE string)
 enc_error_bug.rb:5:in `=~': incompatible encoding regexp match (ASCII-8BIT regexp with UTF-16BE string) (Encoding::CompatibilityError)
 	from enc_error_bug.rb:5:in `<main>'

Notice how the Regexp's Encoding stays US-ASCII, but the error message calls it ASCII-8BIT if I first match it as against an ASCII-8BIT String.
=end

[ujihisa (Tatsuhiro Ujihisa)]

• File without_remember_the_previous_encoding.patch without_remember_the_previous_encoding.patch added

=begin
This patch fix the problem, but may cause another one. I don't understand the purpose of the original code.

=end

[yugui (Yuki Sonoda)]

• Assignee set to naruse (Yui NARUSE)

=begin

=end

[naruse (Yui NARUSE)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

=begin
Applied in changeset r24197.
=end