Style/StringLiterals: reports offense on \u0060 and \u0022

[nijikon]

Expected behavior

Not to return error.

Actual behavior

$ rubocop text.rb
Inspecting 1 file
C

Offenses:

text.rb:1:25: C: Prefer single-quoted strings when you don't need string interpolation or special symbols.
OpenStruct.new(content: "\u0060")
                        ^^^^^^^^
text.rb:3:25: C: Prefer single-quoted strings when you don't need string interpolation or special symbols.
OpenStruct.new(content: "\u0022")
                        ^^^^^^^^

1 file inspected, 2 offenses detected

Steps to reproduce the problem

$ cat text.rb
OpenStruct.new(content: "\u0060")
OpenStruct.new(content: "\u00b4")
OpenStruct.new(content: "\u0022")
OpenStruct.new(content: "\u201d")

RuboCop version

$ rubocop -V
0.39.0 (using Parser 2.3.0.7, running on ruby 2.3.0 x86_64-darwin15)

[mikegee]

I guess the cop is trying to tell you to switch those two. Autocorrect changes the two that it can:

rubocop master % ./bin/rubocop text.rb --only Style/StringLiterals --auto-correct
Inspecting 1 file
C

Offenses:

text.rb:1:25: C: [Corrected] Prefer single-quoted strings when you don't need string interpolation or special symbols.
OpenStruct.new(content: "\u0060")
                        ^^^^^^^^
text.rb:3:25: C: [Corrected] Prefer single-quoted strings when you don't need string interpolation or special symbols.
OpenStruct.new(content: "\u0022")
                        ^^^^^^^^

1 file inspected, 2 offenses detected, 2 offenses corrected
rubocop master % cat text.rb
OpenStruct.new(content: '`')
OpenStruct.new(content: "\u00b4")
OpenStruct.new(content: '"')
OpenStruct.new(content: "\u201d")

EDIT: Now I'm surprised the other two weren't changed.

pry(main)> "\u00b4" == '´'
true
pry(main)> "\u201d" == '”'
true

[alexdowad]

Now I'm surprised the other two weren't changed.

The other 2 are not ASCII.

This is expected behavior. I suggest this issue can be closed.