Class: Tilt::SyntaxHighlightingRedcarpetTemplate

Inherits:
Template
  • Object
show all
Defined in:
lib/ro/initializers/tilt.rb

Direct Known Subclasses

ERBSyntaxHighlightingRedcarpetTemplate

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.engine_initialized? ⇒ Boolean

Returns:

  • (Boolean) 


7
8
9
 
# File 'lib/ro/initializers/tilt.rb', line 7

def self.engine_initialized?
  defined?(::Redcarpet) && defined?(::Pygments) && defined?(::ERB)
end

Instance Method Details

#allows_script? ⇒ Boolean

Returns:

  • (Boolean) 


66
67
68
 
# File 'lib/ro/initializers/tilt.rb', line 66

def allows_script?
  true
end

#erb(string, binding) ⇒ Object 



62
63
64
 
# File 'lib/ro/initializers/tilt.rb', line 62

def erb(string, binding)
  string
end

#evaluate(scope, locals, &block) ⇒ Object 



51
52
53
54
55
56
57
58
59
60
 
# File 'lib/ro/initializers/tilt.rb', line 51

def evaluate(scope, locals, &block)
  binding =
    if scope.is_a?(::Binding)
      scope
    else
      scope.instance_eval{ ::Kernel.binding }
    end

  @engine.render(erb(data, binding))
end

#initialize_engine ⇒ Object 



11
12
13
14
15
 
# File 'lib/ro/initializers/tilt.rb', line 11

def initialize_engine
  require_template_library('redcarpet')
  require_template_library('pygments')
  require_template_library('erb')
end

#prepare ⇒ Object 



17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'lib/ro/initializers/tilt.rb', line 17

def prepare
  @engine =
    Redcarpet::Markdown.new(
      syntax_highlighting_renderer,
  
      :no_intra_emphasis            => true,
      :tables                       => true,
      :fenced_code_blocks           => true,
      :autolink                     => true,
      :disable_indented_code_blocks => true,
      :strikethrough                => true,
      :lax_spacing                  => true,
      :space_after_headers          => false,
      :superscript                  => true,
      :underline                    => true,
      :highlight                    => true,
      :quote                        => true,

      :with_toc_data                => true,
      :hard_wrap                    => true,
    )

  @output = nil
end

#syntax_highlighting_renderer ⇒ Object 



42
43
44
45
46
47
48
49
 
# File 'lib/ro/initializers/tilt.rb', line 42

def syntax_highlighting_renderer
  Class.new(Redcarpet::Render::HTML) do
    def block_code(code, language)
      language = 'ruby' if language.to_s.strip.empty?
      ::Pygments.highlight(code, :lexer => language, :options => {:encoding => 'utf-8'})
    end
  end
end