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Bug #16919
closed
IRB でマジックコメントの : の後に任意の文字を入力するとエラーが発生する
Description
再現手順¶
irb(main):001:0> #coding:u
実際に起きた結果¶
irb(main):001:0> #coding:Traceback (most recent call last):
38: from /usr/local/opt/ruby/bin/irb:23:in `<main>'
37: from /usr/local/opt/ruby/bin/irb:23:in `load'
36: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/gems/2.7.0/gems/irb-1.2.3/exe/irb:11:in `<top (required)>'
35: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:399:in `start'
34: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:470:in `run'
33: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:470:in `catch'
32: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:471:in `block in run'
31: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:536:in `eval_input'
30: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:134:in `each_top_level_statement'
29: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:134:in `catch'
28: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:135:in `block in each_top_level_statement'
27: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:135:in `loop'
26: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:138:in `block (2 levels) in each_top_level_statement'
25: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:166:in `lex'
24: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:517:in `block in eval_input'
23: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:695:in `signal_status'
22: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb.rb:518:in `block (2 levels) in eval_input'
21: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/input-method.rb:262:in `gets'
20: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/forwardable.rb:235:in `readmultiline'
19: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/forwardable.rb:235:in `readmultiline'
18: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:174:in `readmultiline'
17: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:236:in `inner_readline'
16: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:236:in `loop'
15: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:237:in `block in inner_readline'
14: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:266:in `read_io'
13: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:266:in `loop'
12: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:307:in `block in read_io'
11: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:238:in `block (2 levels) in inner_readline'
10: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:238:in `each'
9: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline.rb:239:in `block (3 levels) in inner_readline'
8: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline/line_editor.rb:843:in `input_key'
7: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/reline/line_editor.rb:879:in `process_auto_indent'
6: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:96:in `block in set_auto_indent'
5: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/irb/ruby-lex.rb:78:in `ripper_lex_without_warning'
4: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/ripper/lexer.rb:45:in `lex'
3: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/ripper/lexer.rb:103:in `lex'
2: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/ripper/lexer.rb:125:in `parse'
1: from /usr/local/Cellar/ruby/2.7.1_2/lib/ruby/2.7.0/ripper/lexer.rb:125:in `parse'
-:1: unknown encoding name: u (ArgumentError)
期待した結果¶
irb(main):001:0> #coding:utf-8
=> nil
この結果期待した理由¶
旧バージョンでは期待通りに動いたから。
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