Class: Cmdr

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cmdr

Returns a new instance of Cmdr.



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# File 'lib/cmdr.rb', line 8

def initialize()

  @linebuffer = ''
  @history = []
  @out = []

end

Instance Method Details

#cli_banner ⇒ Object

display the cli banner upon initialisation



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# File 'lib/cmdr.rb', line 65

def cli_banner()
  print "> "
end

#input(c, enter: "\r", backspace: "\u007F", arrowup: :arrow_up) ⇒ Object 



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# File 'lib/cmdr.rb', line 16

def input(c, enter: "\r", backspace: "\u007F", arrowup: :arrow_up)

  key = c

  reveal(c)
  
  @out << case key
  when enter
     
    command = @linebuffer 
    
    @history << command 
    
    if @linebuffer.length < 1 then
      return clear_cli()
    end      
    
    result = yield(@linebuffer)
    
    if result then
      display_output("\n" + result)
    else
      display_output "\n" + 'command not found >> '  + @linebuffer.inspect
    end

    @linebuffer = ''
    clear_cli()

  when backspace
    @linebuffer.chop!
    cli_update()
  when arrowup
    old_command = @history.last
    @linebuffer = old_command
    cli_update old_command
  else
  
    if key.length < 2  then
  
      @linebuffer << key
      key
    end

  end

end