Class: Sass::Engine

Inherits:
Object show all
Defined in:
lib/gems/haml-2.0.4/lib/sass/engine.rb

Overview

This is the class where all the parsing and processing of the Sass template is done. It can be directly used by the user by creating a new instance and calling render to render the template. For example:

template = File.load('stylesheets/sassy.sass')
sass_engine = Sass::Engine.new(template)
output = sass_engine.render
puts output

Constant Summary collapse

ATTRIBUTE_CHAR =

The character that begins a CSS attribute.

?:
SCRIPT_CHAR =

The character that designates that an attribute should be assigned to the result of constant arithmetic.

?=
COMMENT_CHAR =

The character that designates the beginning of a comment, either Sass or CSS.

?/
SASS_COMMENT_CHAR =

The character that follows the general COMMENT_CHAR and designates a Sass comment, which is not output as a CSS comment.

?/
CSS_COMMENT_CHAR =

The character that follows the general COMMENT_CHAR and designates a CSS comment, which is embedded in the CSS document.

?*
DIRECTIVE_CHAR =

The character used to denote a compiler directive.

?@
ESCAPE_CHAR =

Designates a non-parsed rule.

?\\
MIXIN_DEFINITION_CHAR =

Designates block as mixin definition rather than CSS rules to output

?=
MIXIN_INCLUDE_CHAR =

Includes named mixin declared using MIXIN_DEFINITION_CHAR

?+
ATTRIBUTE =

The regex that matches and extracts data from attributes of the form :name attr.

/^:([^\s=:]+)\s*(=?)(?:\s+|$)(.*)/
ATTRIBUTE_ALTERNATE_MATCHER =

The regex that matches attributes of the form name: attr.

/^[^\s:]+\s*[=:](\s|$)/
ATTRIBUTE_ALTERNATE =

The regex that matches and extracts data from attributes of the form name: attr.

/^([^\s=:]+)(\s*=|:)(?:\s+|$)(.*)/

Instance Method Summary collapse

Constructor Details

#initialize(template, options = {}) ⇒ Engine

Creates a new instace of Sass::Engine that will compile the given template string when render is called. See README.rdoc for available options.

–

TODO: Add current options to REFRENCE. Remember :filename!

When adding options, remember to add information about them to README.rdoc! ++



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# File 'lib/gems/haml-2.0.4/lib/sass/engine.rb', line 74

def initialize(template, options={})
  @options = {
    :style => :nested,
    :load_paths => ['.']
  }.merge! options
  @template = template.split(/\r\n|\r|\n/)
  @lines = []
  @constants = {"important" => "!important"}
  @mixins = {}
end

Instance Method Details

#render ⇒ Object Also known as: to_css

Processes the template and returns the result as a string.



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# File 'lib/gems/haml-2.0.4/lib/sass/engine.rb', line 86

def render
  begin
    render_to_tree.to_s
  rescue SyntaxError => err
    unless err.sass_filename
      err.add_backtrace_entry(@options[:filename])
    end
    raise err
  end
end