Hello I am using the rvm 2.7 preview version of Ruby.
[I also tried the git version yesterday, which has the same problem mentioned below].
I am unable to use keys like End, Home, Insert etc.
The IRB crashes (with TypeError) when you press Any of the Insert, Home, Page Up, Delete, End, Page Down key and then without typing anything press the delete key. I am using Arch Linux.
IRB also crashes when you write: a = 5 or any line of code, and press the Delete key.
The error goes like this:
irb(main):001:0> puts ?? Traceback (most recent call last): 35: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/bin/irb:23:in '
34: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/bin/irb:23:in load' 33: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/gems/2.7.0/gems/irb-1.0.0/exe/irb:11:in <top (required)>'
32: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:388:in start' 31: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:430:in run'
30: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:430:in catch' 29: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:431:in block in run'
28: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:492:in eval_input' 27: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb/ruby-lex.rb:83:in each_top_level_statement'
26: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb/ruby-lex.rb:83:in catch' 25: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb/ruby-lex.rb:84:in block in each_top_level_statement'
24: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb/ruby-lex.rb:84:in loop' 23: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb/ruby-lex.rb:87:in block (2 levels) in each_top_level_statement'
22: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb/ruby-lex.rb:115:in lex' 21: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:475:in block in eval_input'
20: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:650:in signal_status' 19: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:476:in block (2 levels) in eval_input'
18: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb/input-method.rb:249:in gets' 17: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline.rb:276:in readmultiline'
16: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline.rb:352:in inner_readline' 15: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline.rb:352:in loop'
14: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline.rb:353:in block in inner_readline' 13: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/key_stroke.rb:28:in read_io'
12: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/key_stroke.rb:28:in loop' 11: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/key_stroke.rb:34:in block in read_io'
10: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline.rb:354:in block (2 levels) in inner_readline' 9: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline.rb:354:in each'
8: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline.rb:355:in block (3 levels) in inner_readline' 7: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:748:in input_key'
6: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:668:in process_key' 5: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:638:in run_for_operators'
4: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:669:in block in process_key' 3: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:669:in call'
2: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:941:in key_delete' 1: from /home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:1641:in ed_delete_next_char'
/home/sourav/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/reline/line_editor.rb:1641:in -': nil can't be coerced into Integer (TypeError)
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