Class: CW::KeyInput

Inherits:
Object
  • Object
show all
Defined in:
lib/cw/key_input.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ KeyInput

Returns a new instance of KeyInput.



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# File 'lib/cw/key_input.rb', line 6

def initialize
  @quit_count = 0
end

Instance Method Details

#char ⇒ Object 



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# File 'lib/cw/key_input.rb', line 10

def char
  @chr
end

#is_letter?(char = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cw/key_input.rb', line 27

def is_letter? char = nil
  char = char ? char : @chr
  char >= 'a' && char <= 'z'
end

#is_number?(char = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cw/key_input.rb', line 32

def is_number? char = nil
  char = char ? char : @chr
  char >= '0' && char <= '9'
end

#is_punctuation?(char = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cw/key_input.rb', line 37

def is_punctuation? char = nil
  char = char ? char : @chr
  [' ', ',', '.', '=', '?','/','+'].detect{|letr| letr == char}
end

#is_quit? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cw/key_input.rb', line 60

def is_quit?
  @quit_count >= 4
end

#is_relevant_char?(char = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cw/key_input.rb', line 42

def is_relevant_char? char = nil
  char = char ? char : @chr
  is_letter?(char) || is_number?(char) || is_punctuation?(char) ? true : false
end

#push_to_quit_maybe ⇒ Object 



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# File 'lib/cw/key_input.rb', line 52

def push_to_quit_maybe
  if @chr == 'q'
    @quit_count += 1
  else
    @quit_count = 0
  end
end

#quit ⇒ Object 



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# File 'lib/cw/key_input.rb', line 64

def quit
  Cfg.config.params["exit"] = true
  reset_stdin
  return true
end

#quit_input? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cw/key_input.rb', line 70

def quit_input?
  push_to_quit_maybe
  return quit if is_quit?
end

#read ⇒ Object 



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# File 'lib/cw/key_input.rb', line 14

def read
  @chr = nil
  begin
    system("stty raw -echo")
    @chr = STDIN.getc
#        @chr = @chr.downcase unless(@chr.include? 'Q')
    #        puts "@chr = #{@chr}"
    @chr
  ensure
    system("stty raw -echo")
  end
end

#reset_stdin ⇒ Object 



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# File 'lib/cw/key_input.rb', line 47

def reset_stdin
  system("stty -raw echo")
end