Class: Numerals::FormattingStream

Inherits:
Object
  • Object
show all
Defined in:
lib/numerals/format/sugar.rb

Overview

Auxiliar class to implement << & >> operators on Format class and Format instances as a shortcut for the Format#write and #read formatting operators.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(format) ⇒ FormattingStream

Returns a new instance of FormattingStream.



26
27
28
29
30
31
 
# File 'lib/numerals/format/sugar.rb', line 26

def initialize(format)
  @format = format
  @text = nil
  @type = nil
  @output = []
end

Class Method Details

.[](*args) ⇒ Object 



33
34
35
 
# File 'lib/numerals/format/sugar.rb', line 33

def self.[](*args)
  new *args
end

Instance Method Details

#<<(*objects) ⇒ Object 



57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
 
# File 'lib/numerals/format/sugar.rb', line 57

def <<(*objects)
  objects.each do |object|
    case object
    when Format, Hash, Array
      @format.set! object
    when String
      if @type
        @output << @format.read(object, type: @type)
      else
        @output << object
      end
    else
      if @text
        @output << @format.read(@text, type: object)
      elsif object.is_a?(Class)
        @type = object
      else
        @output << @format.write(object)
      end
    end
  end
  self
end

#>>(*objects) ⇒ Object 



81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
 
# File 'lib/numerals/format/sugar.rb', line 81

def >>(*objects)
  objects.each do |object|
    case object
    when Format, Hash, Array
      @format.set! object
    when String
      @text = object
      if @type
        @output << @format.read(object, type: @type)
      end
    else
      if @text
        @output << @format.read(@text, type: object)
      elsif object.is_a?(Class)
        @type = object
      else
        @output << @format.write(object)
      end
    end
  end
  self
end

#clear ⇒ Object 



104
105
106
 
# File 'lib/numerals/format/sugar.rb', line 104

def clear
  @output.clear
end

#to_a ⇒ Object 



37
38
39
 
# File 'lib/numerals/format/sugar.rb', line 37

def to_a
  @output
end

#to_s ⇒ Object 



41
42
43
 
# File 'lib/numerals/format/sugar.rb', line 41

def to_s
  to_a.join
end

#to_str ⇒ Object 



45
46
47
 
# File 'lib/numerals/format/sugar.rb', line 45

def to_str
  to_s
end

#value ⇒ Object 



49
50
51
52
53
54
55
 
# File 'lib/numerals/format/sugar.rb', line 49

def value
  if @output.size > 1
    @output
  else
    @output.first
  end
end