Bug #18350: String with foreign character results in: TypeError (nil can't be coerced into Integer)

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-darwin17]
• Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN

[diadbrown (Dave Brown)]

2.7.2 :001 > s = "Púrpura"
Traceback (most recent call last):
        7: from /Users/xxx/.rvm/rubies/ruby-2.7.2/bin/irb:23:in `<main>'
        6: from /Users/xxx/.rvm/rubies/ruby-2.7.2/bin/irb:23:in `load'
        5: from /Users/xxx/.rvm/rubies/ruby-2.7.2/lib/ruby/gems/2.7.0/gems/irb-1.2.6/exe/irb:11:in `<top (required)>'
        4: from /Users/xxx/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/reline/unicode.rb:99:in `calculate_width'
        3: from /Users/xxx/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/reline/unicode.rb:99:in `scan'
        2: from /Users/xxx/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/reline/unicode.rb:108:in `block in calculate_width'
        1: from /Users/xxx/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/reline/unicode.rb:108:in `+'
TypeError (nil can't be coerced into Integer)
2.7.2 :002 > 

Ruby 2.6.3 does not have this problem:

2.6.3 :001 > s = "Púrpura"
 => "Púrpura" 
2.6.3 :002 > 

[jeremyevans0 (Jeremy Evans)]

I cannot reproduce this on Windows using the default 437 code page (using Ruby 2.7.0) or on OpenBSD (using Ruby 2.7.4):

C:\Ruby27-x64\bin>chcp
Active code page: 437

C:\Ruby27-x64\bin>set RUBYOPT=-Ku

C:\Ruby27-x64\bin>irb
irb(main):001:0> s = "Púrpura"
irb(main):002:0> s
=> "Púrpura"
irb(main):003:0> RUBY_VERSION
=> "2.7.0"

$ RUBYOPT=-Ku irb27
irb(main):001:0> s = "Púrpura"
=> "Púrpura"
irb(main):002:0> RUBY_VERSION
=> "2.7.4"

When I try it on Windows with the 65001 (UTF-8) code page, the entire command prompt window containing irb closes (not just the ruby process). I also tried with Ruby 3.0 and got the same result. I can paste the s = "Púrpura" text directly into the command prompt outside of irb, so it doesn't appear to be purely a Windows command prompt issue.

You appear to be running on Mac, so the situation must be different there. Can you reproduce this issue with Ruby 3.0?

[diadbrown (Dave Brown)]

@jeremyevans0 (Jeremy Evans) I don't have 3.0.0 here, and since my Mac is somewhat old I can't get it to install. Maybe someone else on Mac with 3.0.0 can try?

jeremyevans0 (Jeremy Evans) wrote in #note-1:

I cannot reproduce this on Windows using the default 437 code page (using Ruby 2.7.0) or on OpenBSD (using Ruby 2.7.4):

C:\Ruby27-x64\bin>chcp
Active code page: 437

C:\Ruby27-x64\bin>set RUBYOPT=-Ku

C:\Ruby27-x64\bin>irb
irb(main):001:0> s = "Púrpura"
irb(main):002:0> s
=> "Púrpura"
irb(main):003:0> RUBY_VERSION
=> "2.7.0"

$ RUBYOPT=-Ku irb27
irb(main):001:0> s = "Púrpura"
=> "Púrpura"
irb(main):002:0> RUBY_VERSION
=> "2.7.4"

When I try it on Windows with the 65001 (UTF-8) code page, the entire command prompt window containing irb closes (not just the ruby process). I also tried with Ruby 3.0 and got the same result. I can paste the s = "Púrpura" text directly into the command prompt outside of irb, so it doesn't appear to be purely a Windows command prompt issue.

You appear to be running on Mac, so the situation must be different there. Can you reproduce this issue with Ruby 3.0?

[diadbrown (Dave Brown)]

@jeremyevans0 (Jeremy Evans) I found the issue: https://github.com/ruby/irb/issues/261

This fixed it.

[jeremyevans0 (Jeremy Evans)]

• Status changed from Open to Closed