Class: CssTidy::Tidy

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Tidy

Returns a new instance of Tidy.



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# File 'lib/modules/css_tidy.rb', line 7

def initialize
	@parser = Parser.new
end

Instance Attribute Details

#input_size ⇒ Object (readonly)

Returns the value of attribute input_size.



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# File 'lib/modules/css_tidy.rb', line 5

def input_size
  @input_size
end

#output_size ⇒ Object (readonly)

Returns the value of attribute output_size.



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# File 'lib/modules/css_tidy.rb', line 5

def output_size
  @output_size
end

Instance Method Details

#optimize(options) ⇒ Object 



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# File 'lib/modules/css_tidy.rb', line 55

def optimize(options)
	@stylesheet.optimize(options)
end

#split_lines(compressed_css, line_length) ⇒ Object 



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# File 'lib/modules/css_tidy.rb', line 59

def split_lines(compressed_css, line_length)
	css = compressed_css.clone
    # Some source control tools don't like it when files containing lines longer
    # than, say 8000 characters, are checked in. The linebreak option is used in
    # that case to split long lines after a specific column.
    startIndex = 0
    index = 0
	length = css.length
    while (index < length)
      index += 1
      if (css[index - 1,1] === '}' && index - startIndex > line_length)
        css = css.slice(0, index) + "\n" + css.slice(index, length)
        startIndex = index
      end
    end
	css
end

#tidy(css, opts = {}) ⇒ Object 



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# File 'lib/modules/css_tidy.rb', line 11

def tidy(css, opts={})
	@input_size = css.length
	options = {
		:downcase_selectors 				=> true,
		:downcase_properties 				=> true,
		:keep_special_comments 			=> true, # comments that start with a !
		:keep_ie5_comment_hack			=> true, # ie5 comment hack => /*\*/ stuff /**/
		:keep_ie7_selector_comments	=> true, # empty comments in selectors => /**/ used for IE7 hack
		:keep_selector_comments			=> false, # other comments in selectors
		:keep_comments							=> false, # any other comments
		:optimize_colors						=> true,
		:fix_invalid_colors					=> false,
		:optimize_decimals					=> true,
		:optimize_zeros							=> true,
		:optimize_font_weight				=> true,
		:optimize_margin_padding		=> true,
		:optimize_filters						=> true,
		:optimize_urls							=> true,
		:optimize_selectors					=> false,
		:format											=> 0,
		:line_length								=> 0,
	}.merge(opts)

	@stylesheet = @parser.parse(css)
	optimize(options)

	case options[:format]
	when 1
		format = :multi_line
	else
		format = :one_line
	end

	compressed_css = @stylesheet.to_s(format)

   if (options[:line_length] > 0 && format == :one_line)
		compressed_css = split_lines(compressed_css, options[:line_length])
	end

	@output_size = compressed_css.length

	compressed_css
end