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 110

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.class == 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 + $1.to_i
  when /^ctrl\+[a-gi-z]$/
    str.downcase[ -1 ].ord - 96
  when /^ctrl\+h$/
    ::Diakonos::CTRL_H
  when /^alt\+(.)$/
    [ ::Diakonos::ESCAPE, $1[ 0 ].ord ]
  when /^ctrl\+alt\+(.)$/, /^alt\+ctrl\+(.)$/
    [ ::Diakonos::ESCAPE, str.downcase[ -1 ].ord - 96 ]
  when /^keycode(\d+)$/
    $1.to_i
  when /^.$/
    str[ 0 ].ord
  end
  Array( retval )
end