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module Entypo
# The Charmap simply "parses" a CSS file which must conform to the following format:
#
# .icon$NAME$:before { content: ...} /* $codepoint$ */
#
class Charmap
Icon = Struct.new(:klass, :codepoint) do
def <=>(other)
klass <=> other.klass
end
end
# Public: Access the shared instance based on our default entypo.scss file.
#
# Returns Charmap instance.
def self.instance
@@instance ||= self.new File.expand_path('/usr/share/ruby-entypo-rails/app/assets/stylesheets/entypo.css.scss.erb', __FILE__)
end
# Public: Returns Array of icons.
#
# Returns Array of Icon instances.
def self.icons
instance.icons
end
# Access the icons array.
attr_reader :icons
def initialize(path)
@icons = load(path)
end
private
def load(path)
ERB.new(File.read(path)).result.split("\n").map do |line|
if line =~ %r{\A\.(#{Entypo.css_prefix}-[a-z0-9\-]+):before.*/\* ([0-9a-f]+)}
Icon.new($1, $2)
end
end.compact.sort
end
end
end
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