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Versions: 42
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Contents
module Vedeu
module Editor
# Capture input from the terminal via 'getch'.
#
class Capture
ESCAPE_KEY_CODE = 27 # \e
# @param console [IO]
# @return [String|Symbol]
def self.read(console)
new(console).read
end
# Returns a new instance of Vedeu::Editor::Capture.
#
# @param console [IO]
# @return [Vedeu::Editor::Capture]
def initialize(console)
@console = console
end
# @return [String|Symbol]
def read
Vedeu::Input::Translator.translate(keys)
end
private
# @return [String]
def keys
keys = console.getch
if keys.ord == ESCAPE_KEY_CODE
@chars = 3
begin
keys << console.read_nonblock(@chars)
rescue IO::WaitReadable
IO.select([console])
@chars -= 1
retry
rescue IO::WaitWritable
IO.select(nil, [console])
@chars -= 1
retry
end
end
keys
end
# @return [IO]
def console
@console || Vedeu::Terminal.console
end
end # Capture
end # Editor
end # Vedeu
Version data entries
42 entries across 42 versions & 1 rubygems