CssParser::RuleSet

# File lib/css_parser/rule_set.rb, line 16
def initialize(selectors, block, specificity = nil)
  @selectors = []
  @specificity = specificity
  @declarations = {}
  @order = 0
  parse_selectors!(selectors) if selectors
  parse_declarations!(block)
end

# File lib/css_parser/rule_set.rb, line 53
def add_declaration!(property, value)
  if value.nil? or value.empty?
    @declarations.delete(property)
    return
  end
  
  value.gsub!(/;\Z/, '')
  is_important = !value.gsub!(CssParser::IMPORTANT_IN_PROPERTY_RX, '').nil?
  property = property.downcase.strip
  #puts "SAVING #{property}  #{value} #{is_important.inspect}"
  @declarations[property] = {
    :value => value, :is_important => is_important, :order => @order += 1
  }
end

# File lib/css_parser/rule_set.rb, line 301
def create_shorthand!
  create_background_shorthand!
  create_dimensions_shorthand!
  # border must be shortened after dimensions
  create_border_shorthand!
  create_font_shorthand!
  create_list_style_shorthand!
end

# File lib/css_parser/rule_set.rb, line 107
def declarations_to_s(options = {})
 options = {:force_important => false}.merge(options)
 str = ''
 each_declaration do |prop, val, is_important|
   importance = (options[:force_important] || is_important) ? ' !important' : ''
   str += "#{prop}: #{val}#{importance}; "
 end
 str.gsub(/^[\s^(\{)]+|[\n\r\f\t]*|[\s]+$/x, '').strip
end

# File lib/css_parser/rule_set.rb, line 95
def each_declaration # :yields: property, value, is_important
  decs = @declarations.sort { |a,b| a[1][:order].nil? || b[1][:order].nil? ? 0 : a[1][:order] <=> b[1][:order] }
  decs.each do |property, data|
    value = data[:value]
    yield property.downcase.strip, value.strip, data[:is_important]
  end
end

# File lib/css_parser/rule_set.rb, line 85
def each_selector(options = {}) # :yields: selector, declarations, specificity
  declarations = declarations_to_s(options)
  if @specificity
    @selectors.each { |sel| yield sel.strip, declarations, @specificity }
  else
    @selectors.each { |sel| yield sel.strip, declarations, CssParser.calculate_specificity(sel) }
  end
end

# File lib/css_parser/rule_set.rb, line 124
def expand_shorthand!
  # border must be expanded before dimensions
  expand_border_shorthand!
  expand_dimensions_shorthand!
  expand_font_shorthand!
  expand_background_shorthand!
  expand_list_style_shorthand!
end

# File lib/css_parser/rule_set.rb, line 26
def get_value(property)
  return '' unless property and not property.empty?

  property = property.downcase.strip
  properties = @declarations.inject('') do |val, (key, data)|
    #puts "COMPARING #{key} #{key.inspect} against #{property} #{property.inspect}"
    importance = data[:is_important] ? ' !important' : ''
    val << "#{data[:value]}#{importance}; " if key.downcase.strip == property
    val
  end
  return properties ? properties.strip : ''
end

# File lib/css_parser/rule_set.rb, line 72
def remove_declaration!(property)
  @declarations.delete(property)
end

# File lib/css_parser/rule_set.rb, line 118
def to_s
  decs = declarations_to_s
  "#{@selectors.join(',')} { #{decs} }"
end