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sample/pty/shl.rb: update sample

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* Specify frozen_string_literal: true.
* Fix TypeError of raise.
* Use a character literal instead of Integer.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57530 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kazu 2017-02-04 06:49:07 +00:00
parent af2009a58f
commit 5b540799bf
1 changed files with 4 additions and 3 deletions
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7
sample/pty/shl.rb
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@ -1,3 +1,4 @@
# frozen_string_literal: true
#
# old-fashioned 'shl' like program
# by A. Ito
@ -22,15 +23,15 @@ def writer
begin
while true
c = STDIN.getc
if c == 26 then # C-z
$reader.raise(nil)
if c == ?\C-z then
$reader.raise('Suspend')
return 'Suspend'
end
$w_pty.print c.chr
$w_pty.flush
end
rescue
$reader.raise(nil)
$reader.raise('Exit')
return 'Exit'
ensure
system "stty echo -raw"