Class Sass::CSS
In: lib/sass/css.rb
Parent: Object

This class converts CSS documents into Sass or SCSS templates. It works by parsing the CSS document into a {Sass::Tree} structure, and then applying various transformations to the structure to produce more concise and idiomatic Sass/SCSS.

Example usage: 

    Sass::CSS.new("p { color: blue }").render(:sass) #=> "p\n  color: blue"
    Sass::CSS.new("p { color: blue }").render(:scss) #=> "p {\n  color: blue; }"

Methods

new   render   source_encoding  

Public Class methods

new(template, options = {})

@param template [String] The CSS stylesheet. 

  This stylesheet can be encoded using any encoding
  that can be converted to Unicode.
  If the stylesheet contains an `@charset` declaration,
  that overrides the Ruby encoding
  (see {file:SASS_REFERENCE.md#encodings the encoding documentation})

@option options :old [Boolean] (false) 

    Whether or not to output old property syntax
    (`:color blue` as opposed to `color: blue`).
    This is only meaningful when generating Sass code,
    rather than SCSS.

[Source]

    # File lib/sass/css.rb, line 28
28:     def initialize(template, options = {})
29:       if template.is_a? IO
30:         template = template.read
31:       end
32: 
33:       @options = options.dup
34:       # Backwards compatibility
35:       @options[:old] = true if @options[:alternate] == false
36:       @template = template
37:     end

Public Instance methods

render(fmt = :sass)

Converts the CSS template into Sass or SCSS code.

@param fmt [Symbol] `:sass` or `:scss`, designating the format to return. @return [String] The resulting Sass or SCSS code @raise [Sass::SyntaxError] if there‘s an error parsing the CSS template

[Source]

    # File lib/sass/css.rb, line 44
44:     def render(fmt = :sass)
45:       check_encoding!
46:       build_tree.send("to_#{fmt}", @options).strip + "\n"
47:     rescue Sass::SyntaxError => err
48:       err.modify_backtrace(:filename => @options[:filename] || '(css)')
49:       raise err
50:     end
source_encoding()

Returns the original encoding of the document, or `nil` under Ruby 1.8.

@return [Encoding, nil] @raise [Encoding::UndefinedConversionError] if the source encoding 

  cannot be converted to UTF-8

@raise [ArgumentError] if the document uses an unknown encoding with `@charset`

[Source]

    # File lib/sass/css.rb, line 59
59:     def source_encoding
60:       check_encoding!
61:       @original_encoding
62:     end

[Validate]