Bug #9096: Regexp.quote(UTF-8) returns US-ASCII

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.0.0p247 (2013-06-27 revision 41674) [universal.x86_64-darwin13]

[walles (Johan Walles)]

The attached program contains a unit test demonstrating that doing Regexp.quote() on an UTF-8 encoded string returns a US-ASCII encoded string (or at least I think it does...).

I would expect Regexp.quote() to return a string with the same encoding as the input string.

[duerst (Martin Dürst)]

• Status changed from Open to Feedback

The encoding is set back to US-ASCII because the string is just 'foo'. If you change the string e.g. to "foo\u1234", then even after using Regexp.quote, it will keep UTF-8 as the encoding.

A US-ASCII Regexp will match against any UTF-8 String the same way the corresponding UTF-8 Regexp will match (US-ASCII is treated as a common denominator in Ruby), so I don't think there should be any problems.

In case you find any actual problems, please report back.

[jeremyevans0 (Jeremy Evans)]

• Status changed from Feedback to Closed
• Backport deleted (1.9.3: UNKNOWN, 2.0.0: UNKNOWN)