module Asciidoctor::SyntaxHighlighter::Factory

def create name, backend = 'html5', opts = {}

Returns a [SyntaxHighlighter] instance for the specified name.

:doc - The Document for which this syntax highlighter was created.
opts - A Hash of options providing information about the context in which this syntax highlighter is used:
backend - The String name of the backend for which this syntax highlighter is being used (default: 'html5').
name - The String name of the syntax highlighter to create.

Public: Resolves the name to a syntax highlighter instance, if found in the registry. 
def create name, backend = 'html5', opts = {}
  if (syntax_hl = self.for name)
    syntax_hl = syntax_hl.new name, backend, opts if ::Class === syntax_hl
    raise ::NameError, %(#{syntax_hl.class} must specify a value for `name') unless syntax_hl.name
    syntax_hl
  end
end

def for name

Returns the SyntaxHighlighter Class or Object instance registered for this name.

name - The String name of the syntax highlighter to retrieve.

Public: Retrieves the syntax highlighter class or object registered for the specified name. 
def for name
  registry[name]
end

def register syntax_highlighter, *names

Returns nothing.

Public: Associates the syntax highlighter class or object with the specified names. 
def register syntax_highlighter, *names
  names.each {|name| registry[name] = syntax_highlighter }
end

def registry 

def registry
  raise ::NotImplementedError, %(#{Factory} subclass #{self.class} must implement the ##{__method__} method)
end