Class: SassyHash

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

Constant Summary collapse

VERSION = 
"0.1.1"
VALID_UNIT = 
%r{(?<unit>#{::Sass::SCSS::RX::NMSTART}#{::Sass::SCSS::RX::NMCHAR}|%*)}
FLOAT_OR_INT_MATCH = 
%r{(?<float>^[0-9]*\.[0-9]+)|(?<int>^[0-9]+)}
FLOAT_OR_INT = 
%r{(^[0-9]*\.[0-9]+|^[0-9]+)}
VALID_NUMBER = 
%r{(#{FLOAT_OR_INT_MATCH})#{VALID_UNIT}}
RGB_REGEX = 
%r{(rgba?\((?<colors>([^)]*))\))}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ SassyHash

Returns a new instance of SassyHash.



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# File 'lib/sassy_hash.rb', line 19

def initialize(*args)
  super(args).tap do |hash|
    hash.sassify!
  end
end

Class Method Details

.[](hash_values) ⇒ Object 



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# File 'lib/sassy_hash.rb', line 13

def self.[](hash_values)
  super(hash_values).tap do |hash|
    hash.sassify!
  end
end

.parse_color(value) ⇒ Object 



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# File 'lib/sassy_hash.rb', line 39

def self.parse_color(value)
  sass_colors = Sass::Script::Value::Color::COLOR_NAMES
  if sass_colors.has_key?(value)
    return ::Sass::Script::Value::Color.new sass_colors[value]
  end
    # hex color
  if value =~ Sass::SCSS::RX::HEXCOLOR
    return ::Sass::Script::Value::Color.from_hex(value)
  end

  if matches = value.match(RGB_REGEX)
    colors = matches[:colors].split(',')
    colors.map!(&:to_f)
    return ::Sass::Script::Value::Color.new colors
  end

  nil
end

.sass_convert_value(value) ⇒ Object 



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# File 'lib/sassy_hash.rb', line 58

def self.sass_convert_value(value)
  case value
  when Integer, Fixnum
    return ::Sass::Script::Value::Number.new(value.to_i)
  when Float
    return ::Sass::Script::Value::Number.new(value.to_f)
  when Symbol
    return ::Sass::Script::Value::String.new(value.to_s)
  when String
    color = self.parse_color(value)
    return color unless color.nil?
    #number
    if matches = value.match(VALID_NUMBER)
      num = if matches[:float]
        matches[:float].to_f
      elsif matches[:int]
        matches[:int].to_i
      end
      return ::Sass::Script::Value::Number.new(num, matches[:unit])
    end
    #string
    return ::Sass::Script::Value::String.new(value)
  when Array
    return ::Sass::Script::Value::List.new(value.map {|v| sass_convert_value(v) }, :comma)
  when Hash
    return ::Sass::Script::Value::Map.new(self[value])
  when TrueClass, FalseClass
    return ::Sass::Script::Value::Bool.new(value)
  when ::Sass::Script::Value::Base
    return value
  else
    raise SassyHashException, "Non convertable value given" 
  end
end

Instance Method Details

#[]=(key, value) ⇒ Object 



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# File 'lib/sassy_hash.rb', line 33

def []=(key, value)
  key = self.class.sass_convert_value(key.to_s)
  value = self.class.sass_convert_value(value)
  super(key, value)
end

#sassify! ⇒ Object 



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# File 'lib/sassy_hash.rb', line 25

def sassify!
  keys.each do |key|
    new_key = self.class.sass_convert_value(key.to_s)
    self[new_key] = self.class.sass_convert_value(delete(key))
  end
end