Class: TinyCss::OrderedHash

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/tiny_css/ordered_hash.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ OrderedHash

Returns a new instance of OrderedHash.



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# File 'lib/tiny_css/ordered_hash.rb', line 7

def initialize
  self.keys = []
  @hash = Hash.new { |h, k|
    self.keys << k.to_s
    h[k] = OrderedHash.new
  }
end

Instance Attribute Details

#keys ⇒ Object

Returns the value of attribute keys.



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# File 'lib/tiny_css/ordered_hash.rb', line 5

def keys
  @keys
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 15

def [](key)
  @hash[key.to_s]
end

#[]=(key, value) ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 19

def []=(key, value)
  key = key.to_s
  @hash[key] = value
  self.keys << key unless self.keys.include?(key)
end

#delete(key, &block) ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 25

def delete(key, &block)
  key = key.to_s
  self.keys.delete key
  @hash.delete key, &block
end

#dup ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 31

def dup
  dup = super
  dup.instance_variable_set(:@hash, @hash.dup)
  dup.keys = self.keys.dup
  dup
end

#each(&block) ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 38

def each(&block)
  self.keys.each { |k| yield [k, self[k]] }
  self
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tiny_css/ordered_hash.rb', line 53

def empty?
  @hash.empty?
end

#inspect ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 43

def inspect
  ary = []
  each { |k, v| ary << "#{ k.inspect }=>#{ v.inspect }" }
  "{#{ ary.join(', ') }}"
end

#key?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tiny_css/ordered_hash.rb', line 57

def key?(key)
  keys.include?(key)
end

#split(*keys_to_split) ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 61

def split(*keys_to_split)
  h = self.class.new
  keys.find_all {|k| keys_to_split.include?(k) }.each do |k|
    h[k] = delete(k)
  end
  h
end

#to_s ⇒ Object 



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# File 'lib/tiny_css/ordered_hash.rb', line 49

def to_s
  map { |k, v| "#{ k }:#{ v }" }.join ';'
end