Class: Stringfire::Interpreter

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Interpreter

Returns a new instance of Interpreter.



12
13
14
15
 
# File 'lib/stringfire.rb', line 12

def initialize
  @commands = { }
  default { |command, *args| command }
end

Instance Method Details

#command(name, &block) ⇒ Object 



17
18
19
 
# File 'lib/stringfire.rb', line 17

def command name, &block
  @commands[name] = block
end

#command_names ⇒ Object 



21
22
23
 
# File 'lib/stringfire.rb', line 21

def command_names
  @commands.keys
end

#default(*args, &block) ⇒ Object 



25
26
27
28
29
30
31
 
# File 'lib/stringfire.rb', line 25

def default *args, &block
  if block_given?
    @default = block
  else
    @default.call *args
  end
end

#interpret(command_text, *args) ⇒ Object 



33
34
35
36
37
38
39
40
 
# File 'lib/stringfire.rb', line 33

def interpret command_text, *args
  name, details = split_first_word command_text
  if @commands.key? name
    @commands[name].call details, *args
  else
    default command_text, *args
  end
end

#split_first_word(str) ⇒ Object 



6
7
8
9
10
 
# File 'lib/stringfire.rb', line 6

def split_first_word str
  result = str.strip.split /\s/, 2
  result << "" while result.size < 2
  result
end