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Hash#inspect differs from MRI Ruby 2.2.1; This problem occurs if Hash has double-quoted UTF8 symbol key. #2713

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k77ch7 opened this issue Mar 17, 2015 · 2 comments

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@k77ch7
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@k77ch7 k77ch7 commented Mar 17, 2015

The following test.rb differs from MRI Ruby 2.2.1 on JRuby master.

test.rb

# encoding: utf-8
h = { "Ãa1": true }
p h

MRI Ruby 2.2.1

$ ruby ~/development/test.rb
{:Ãa1=>true}

JRuby master

$ jruby ~/development/test.rb
{:"Ãa1"=>true}

My env

jruby 9.0.0.0-SNAPSHOT (2.2.1) 2015-03-17 c9a5cca Java HotSpot(TM) 64-Bit Server VM 25.5-b02 on 1.8.0_05-b13 +jit [darwin-x86_64]
@enebo
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@enebo enebo commented Mar 18, 2015

We (you) can fix this but I find MRI's output to be strange. You would think their output on inspect would be valid Ruby syntax? Makes me wonder if this is our bug or theirs?

@enebo enebo added this to the JRuby 9.0.0.0 milestone Mar 18, 2015
@k77ch7
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@k77ch7 k77ch7 commented Mar 25, 2015

I thought wrong. I think that this cause is Symbol#inspect rather than Hash#inspect.
The following symbol_test.rb differs from MRI Ruby. The different result occurs in the case of UTF8 string symbol.

symbol_test.rb

# encoding: utf-8

p :"Ãa1".inspect
p :"a1".inspect
p :"1".inspect

MRI Ruby 1.9.3, 2.0.0, 2.1.4 and 2.2,1

$ ruby ~/development/symbol_test.rb
":Ãa1"
":a1"
":\"1\""

JRuby master and 1.7.19

$ jruby ~/development/symbol_test.rb
":\"Ãa1\""
":a1"
":\"1\""
@k77ch7 k77ch7 changed the title Hash#inspect differs from MRI Ruby 2.2.0; This problem occurs if Hash has double-quoted UTF8 key. Hash#inspect differs from MRI Ruby 2.2.1; This problem occurs if Hash has double-quoted UTF8 key. Mar 27, 2015
@k77ch7 k77ch7 changed the title Hash#inspect differs from MRI Ruby 2.2.1; This problem occurs if Hash has double-quoted UTF8 key. Hash#inspect differs from MRI Ruby 2.2.1; This problem occurs if Hash has double-quoted UTF8 symbol key. Apr 21, 2015
@enebo enebo closed this in #2899 May 1, 2015
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