Class: CodeRay::Encoders::HTML2

Inherits:
HTML
  • Object
show all
Defined in:
lib/milkode/cdweb/lib/coderay_html2.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.create_anchor(options) ⇒ Object 



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# File 'lib/milkode/cdweb/lib/coderay_html2.rb', line 164

def self.create_anchor(options)
  anchor_prefix = options[:line_number_anchors]
  anchor_prefix = 'line' if anchor_prefix == true
  anchor_prefix = anchor_prefix.to_s[/\w+/] if anchor_prefix

  if anchor_prefix
    anchor_url = options[:line_number_anchor_url] || ""

    proc do |line|
      line = line.to_s
      anchor = anchor_prefix + line
      "<a href=\"#{anchor_url}##{anchor}\" name=\"#{anchor}\">#{line}</a>"
    end
  elsif options[:onclick_copy_line_number]
    prefix = options[:onclick_copy_prefix] || ""
    proc do |line|
      "<a href=\"#lineno-modal\" data-toggle=\"modal\" onclick=\"lineno_setup('#{prefix}', '#{line.to_s}');\" title=\"Display line number\">#{line.to_s}</a>"
      # "<a onclick=\"lineno_setup('#{prefix}', '#{line.to_s}');\" title=\"Display line number\">#{line.to_s}</a>"
    end
  else
    proc { |line| line.to_s }  # :to_s.to_proc in Ruby 1.8.7+
  end
end

.number!(output, mode = :table, options = {}) ⇒ Object

ref

CodeRay::Encoders::Numberling#number! (coderay-1.0.5/lib/coderay/encoders/numbering.rb:8)



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# File 'lib/milkode/cdweb/lib/coderay_html2.rb', line 74

def self.number! output, mode = :table, options = {}
  return self unless mode

  options = DEFAULT_OPTIONS.merge options

  start = options[:line_number_start]
  unless start.is_a? Integer
    raise ArgumentError, "Invalid value %p for :line_number_start; Integer expected." % start
  end
  
  anchoring = create_anchor(options)
  
  bold_every = options[:bold_every]
  highlight_lines = options[:highlight_lines]
  bolding =
    if bold_every == false && highlight_lines == nil
      anchoring
    elsif highlight_lines.is_a? Enumerable
      highlight_lines = highlight_lines.to_set
      proc do |line|
      if highlight_lines.include? line
        "<strong class=\"highlighted\">#{anchoring[line]}</strong>"  # highlighted line numbers in bold
      else
        anchoring[line]
      end
    end
    elsif bold_every.is_a? Integer
      raise ArgumentError, ":bolding can't be 0." if bold_every == 0
      proc do |line|
      if line % bold_every == 0
        "<strong>#{anchoring[line]}</strong>"  # every bold_every-th number in bold
      else
        anchoring[line]
      end
    end
    else
      raise ArgumentError, 'Invalid value %p for :bolding; false or Integer expected.' % bold_every
    end
  
  line_count = output.count("\n")
  position_of_last_newline = output.rindex(RUBY_VERSION >= '1.9' ? /\n/ : ?\n)
  if position_of_last_newline
    after_last_newline = output[position_of_last_newline + 1 .. -1]
    ends_with_newline = after_last_newline[/\A(?:<\/span>)*\z/]
    line_count += 1 if not ends_with_newline
  end
  
  case mode
  when :inline
    max_width = (start + line_count).to_s.size
    line_number = start
    nesting = []
    output.gsub!(/^.*$\n?/) do |line|
      line.chomp!
      open = nesting.join
      line.scan(%r!<(/)?span[^>]*>?!) do |close,|
        if close
          nesting.pop
        else
          nesting << $&
        end
      end
      close = '</span>' * nesting.size
      
      line_number_text = bolding.call line_number
      indent = ' ' * (max_width - line_number.to_s.size)  # TODO: Optimize (10^x)
      line_number += 1
      "<span class=\"line-numbers\">#{indent}#{line_number_text}</span>#{open}#{line}#{close}\n"
    end

  when :table
    line_numbers = (start ... start + line_count).map(&bolding).join("\n")
    line_numbers << "\n"
    line_numbers_table_template = Output::TABLE.apply('LINE_NUMBERS', line_numbers)

    output.gsub!(/<\/div>\n/, '</div>')
    output.wrap_in! line_numbers_table_template
    output.wrapped_in = :div

  when :list
    raise NotImplementedError, 'The :list option is no longer available. Use :table.'

  else
    raise ArgumentError, 'Unknown value %p for mode: expected one of %p' %
      [mode, [:table, :inline]]
  end

  output
end

Instance Method Details

#finish(options) ⇒ Object

ref

CodeRay::Encoders::HTML#finish (coderay-1.0.5/lib/coderay/encoders/html.rb:219)



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# File 'lib/milkode/cdweb/lib/coderay_html2.rb', line 23

def finish options
  @out = ornament_line_attr(options)

  unless @opened.empty?
    warn '%d tokens still open: %p' % [@opened.size, @opened] if $CODERAY_DEBUG
    @out << '</span>' while @opened.pop
    @last_opened = nil
  end
  
  @out.extend Output
  @out.css = @css
  if options[:line_numbers]
    # Numbering.number! @out, options[:line_numbers], options
    HTML2::number! @out, options[:line_numbers], options
  end
  @out.wrap! options[:wrap]
  @out.apply_title! options[:title]
  
  if defined?(@real_out) && @real_out
    @real_out << @out
    @out = @real_out
  end
  
  @out
end

#line_attr(line, no, options) ⇒ Object 



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# File 'lib/milkode/cdweb/lib/coderay_html2.rb', line 59

def line_attr(line, no, options)
  # p options
  is_highlight = true if options[:highlight_lines].include?(no)

  r = []
  r << "id=\"n#{no}\""
  r << "class=\"highlight-line\"" if is_highlight
  attr = r.join(" ")

  line = Milkode::Util.highlight_keywords(line, options[:keywords], 'highlight-filename') if is_highlight
  
  "<span #{attr}>#{line}</span>"
end

#ornament_line_attr(options) ⇒ Object 



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# File 'lib/milkode/cdweb/lib/coderay_html2.rb', line 49

def ornament_line_attr(options)
  line_number = options[:line_number_start]
  lines = @out.split("\n")

  lines.map{|l|
    line_number += 1
    line_attr(l, line_number - 1, options)
  }.join("\n") + "\n"
end

#text_token(text, kind) ⇒ Object 



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# File 'lib/milkode/cdweb/lib/coderay_html2.rb', line 17

def text_token text, kind
  # p "#{kind}: #{text}"
  super
end