Class: Asciidoctor::SyntaxHighlighter::RougeAdapter

Inherits:
Base
  • Object
show all
Extended by:
Styles
Includes:
Loader, Styles
Defined in:
lib/asciidoctor/syntax_highlighter/rouge.rb

Defined Under Namespace

Modules: Loader, Styles

Constant Summary

Constants included from DefaultFactory

DefaultFactory::PROVIDED

Instance Attribute Summary

Attributes included from Asciidoctor::SyntaxHighlighter

#name

Instance Method Summary collapse

Methods included from Styles

read_stylesheet, stylesheet_basename

Methods included from DefaultFactory

#for, #register

Methods included from Factory

#create, #for, #register

Constructor Details

#initialize(*args) ⇒ RougeAdapter

Returns a new instance of RougeAdapter.



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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 6

def initialize *args
  super
  @requires_stylesheet = @style = nil
end

Instance Method Details

#docinfo(location, doc, opts) ⇒ Object 



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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 52

def docinfo location, doc, opts
  if opts[:linkcss]
    %(<link rel="stylesheet" href="#{doc.normalize_web_path (stylesheet_basename @style), (doc.attr 'stylesdir', ''), false}"#{opts[:self_closing_tag_slash]}>)
  else
    %(<style>
#{read_stylesheet @style}
</style>)
  end
end

#docinfo?(location) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 48

def docinfo? location
  @requires_stylesheet && location == :footer
end

#format(node, lang, opts) ⇒ Object 



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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 37

def format node, lang, opts
  if (query_idx = lang && (lang.index '?'))
    lang = lang.slice 0, query_idx
  end
  if opts[:css_mode] != :class && (@style = (style = opts[:style]) && (style_available? style) || DEFAULT_STYLE) &&
      (pre_style_attr_val = base_style @style)
    opts[:transform] = proc {|pre| pre['style'] = pre_style_attr_val }
  end
  super
end

#highlight(node, source, lang, opts) ⇒ Object 



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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 15

def highlight node, source, lang, opts
  lexer = (::Rouge::Lexer.find_fancy lang) || ::Rouge::Lexers::PlainText
  lexer_opts = lexer.tag == 'php' && !(node.option? 'mixed') ? { start_inline: true } : {}
  @style ||= (style = opts[:style]) && (style_available? style) || DEFAULT_STYLE
  if opts[:css_mode] == :class
    @requires_stylesheet = true
    formatter = ::Rouge::Formatters::HTML.new inline_theme: @style
  else
    formatter = ::Rouge::Formatters::HTMLInline.new (::Rouge::Theme.find @style).new
  end
  if (highlight_lines = opts[:highlight_lines])
    formatter = RougeExt::Formatters::HTMLLineHighlighter.new formatter, lines: highlight_lines
  end
  if opts[:number_lines]
    formatter = RougeExt::Formatters::HTMLTable.new formatter, start_line: opts[:start_line_number]
    if opts[:callouts]
      return [(highlighted = formatter.format lexer.lex source, lexer_opts), (idx = highlighted.index CodeCellStartTagCs) ? idx + CodeCellStartTagCs.length : nil]
    end
  end
  formatter.format lexer.lex source, lexer_opts
end

#highlight? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 11

def highlight?
  library_available?
end

#write_stylesheet(doc, to_dir) ⇒ Object 



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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 66

def write_stylesheet doc, to_dir
  ::File.write (::File.join to_dir, (stylesheet_basename @style)), (read_stylesheet @style), mode: FILE_WRITE_MODE
end

#write_stylesheet?(doc) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asciidoctor/syntax_highlighter/rouge.rb', line 62

def write_stylesheet? doc
  @requires_stylesheet
end