From: oz@...
Date: 2018-02-21T22:56:20+00:00
Subject: [ruby-core:85737] [Ruby trunk Bug#14539] Duplicate range in	character class warning

Issue #14539 has been reported by oznik (Oz Shelach).

----------------------------------------
Bug #14539: Duplicate range in character class warning
https://bugs.ruby-lang.org/issues/14539

* Author: oznik (Oz Shelach)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: >= 2.5.0
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
~~~ ruby
#!/usr/bin/env ruby -w
puts RUBY_VERSION
puts "����".match?(/\X/).inspect
puts '--------------'
~~~

~~~ text
2.4.3
true
--------------
2.5.0
grapheme_warning.rb:3: warning: character class has duplicated range: /\X/
true
--------------
2.6.0
grapheme_warning.rb:3: warning: character class has duplicated range: /\X/
true
--------------
~~~

I don't think there's a duplicate range here, so there should not be a warning.



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