Module: Diakonos::Keying

Defined in:
lib/diakonos/keying.rb

Constant Summary collapse

KEYSTRINGS = 
[
  "ctrl+space",   # 0
  "ctrl+a",       # 1
  "ctrl+b",       # 2
  "ctrl+c",       # 3
  "ctrl+d",       # 4
  "ctrl+e",       # 5
  "ctrl+f",       # 6
  "ctrl+g",       # 7
  nil,            # 8
  "tab",          # 9
  "ctrl+j",       # 10
  "ctrl+k",       # 11
  "ctrl+l",       # 12
  "enter",        # 13
  "ctrl+n",       # 14
  "ctrl+o",       # 15
  "ctrl+p",       # 16
  "ctrl+q",       # 17
  "ctrl+r",       # 18
  "ctrl+s",       # 19
  "ctrl+t",       # 20
  "ctrl+u",       # 21
  "ctrl+v",       # 22
  "ctrl+w",       # 23
  "ctrl+x",       # 24
  "ctrl+y",       # 25
  "ctrl+z",       # 26
  "esc",          # 27
  nil,            # 28
  nil,            # 29
  nil,            # 30
  nil,            # 31
  "space",        # 32
] + (33..126).map(&:chr) + [
  "backspace",    # 127
]
UTF_8_2_BYTE_BEGIN = 
0xc2
UTF_8_2_BYTE_END = 
0xdf
UTF_8_3_BYTE_BEGIN = 
0xe0
UTF_8_3_BYTE_END = 
0xef
UTF_8_4_BYTE_BEGIN = 
0xf0
UTF_8_4_BYTE_END = 
0xf4

Class Method Summary collapse

Class Method Details

.key_string_for(num) ⇒ Object 



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# File 'lib/diakonos/keying.rb', line 113

def self.key_string_for( num )
  retval = KEYSTRINGS[ num ]
  if retval.nil?
    retval = (
      case num
      when Curses::KEY_DOWN
        "down"
      when Curses::KEY_UP
        "up"
      when Curses::KEY_LEFT
        "left"
      when Curses::KEY_RIGHT
        "right"
      when Curses::KEY_HOME
        "home"
      when Curses::KEY_END
        "end"
      when Curses::KEY_IC
        "insert"
      when Curses::KEY_DC
        "delete"
      when Curses::KEY_PPAGE
        "page-up"
      when Curses::KEY_NPAGE
        "page-down"
      when Curses::KEY_A1
        "numpad7"
      when Curses::KEY_A3
        "numpad9"
      when Curses::KEY_B2
        "numpad5"
      when Curses::KEY_C1
        "numpad1"
      when Curses::KEY_C3
        "numpad3"
      when Curses::KEY_FIND
        "find"
      when Curses::KEY_SELECT
        "select"
      when Curses::KEY_SUSPEND
        "suspend"
      when Curses::KEY_F0..(Curses::KEY_F0 + 24)
        "f" + ( num - Curses::KEY_F0 ).to_s
      when CTRL_H
        "ctrl+h"
      when Curses::KEY_RESIZE
        "resize"
      when RESIZE2
        "resize2"
      end
    )
  end
  if retval.nil? && num.instance_of?(Integer)
    retval = "keycode#{num}"
  end
  retval
end

.keycodes_for(str) ⇒ Object 



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# File 'lib/diakonos/keying.rb', line 42

def self.keycodes_for( str )
  retval = (
    case str.downcase
    when "down"
      Curses::KEY_DOWN
    when "up"
      Curses::KEY_UP
    when "left"
      Curses::KEY_LEFT
    when "right"
      Curses::KEY_RIGHT
    when "home"
      Curses::KEY_HOME
    when "end"
      Curses::KEY_END
    when "insert", "ins"
      Curses::KEY_IC
    when "delete", "del"
      Curses::KEY_DC
    when "backspace"
      ::Diakonos::BACKSPACE
    when "tab"
      9
    when "pageup", "page-up"
      Curses::KEY_PPAGE
    when "pagedown", "page-down"
      Curses::KEY_NPAGE
    when "enter", "return"
      ::Diakonos::ENTER
    when "numpad7", "keypad7", "kp-7"
      Curses::KEY_A1
    when "numpad9", "keypad9", "kp-9"
      Curses::KEY_A3
    when "numpad5", "keypad5", "kp-5"
      Curses::KEY_B2
    when "numpad1", "keypad1", "kp-1"
      Curses::KEY_C1
    when "numpad3", "keypad3", "kp-3"
      Curses::KEY_C3
    when "escape", "esc"
      ::Diakonos::ESCAPE
    when "space"
      32
    when "ctrl+space"
      0
    when "find"
      Curses::KEY_FIND
    when "select"
      Curses::KEY_SELECT
    when "suspend"
      Curses::KEY_SUSPEND
    when /^f(\d\d?)$/
      Curses::KEY_F0 + ::Regexp.last_match(1).to_i
    when /^ctrl\+[a-gi-z]$/
      str.downcase[ -1 ].ord - 96
    when /^ctrl\+h$/
      ::Diakonos::CTRL_H
    when /^alt\+(.)$/
      [ ::Diakonos::ESCAPE, ::Regexp.last_match(1)[ 0 ].ord ]
    when /^ctrl\+alt\+(.)$/, /^alt\+ctrl\+(.)$/
      [ ::Diakonos::ESCAPE, str.downcase[ -1 ].ord - 96 ]
    when /^keycode(\d+)$/
      ::Regexp.last_match(1).to_i
    when /^.$/
      str[ 0 ].ord
    end
  )

  Array( retval )
end