Class: Kramdown::Parser::BlockKramdown

Inherits:
Kramdown
  • Object
show all
Defined in:
lib/documentation_editor/parser.rb

Constant Summary collapse

BLOCK_TAGS_START = 
/\[block:(.+?)\](.+?)\[\/block\]/m

Instance Method Summary collapse

Constructor Details

#initialize(source, options) ⇒ BlockKramdown

Returns a new instance of BlockKramdown.



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# File 'lib/documentation_editor/parser.rb', line 7

def initialize(source, options)
  @language = options[:language] || options['language']
  super
  @span_parsers.unshift(:block_tags)
end

Instance Method Details

#parse_block_tags ⇒ Object 



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# File 'lib/documentation_editor/parser.rb', line 13

def parse_block_tags
  block = @src[1]
  content = JSON.parse(@src[2])
  @src.pos += @src.matched_size
  case block
  when 'code'
    if @language
      code = content['codes'].detect { |code| code['language'] == @language || code['language'].end_with?("|#{@language}") }
      code ||= content['codes'].detect { |code| code['language'].end_with?("|*") }
      @tree.children << Element.new(:html_element, 'pre')
      @tree.children.last.children << Element.new(:raw, code ? highlight(code['language'].split('|').first, code['code']) : "FIXME:#{@language}")
    else
      ul = Element.new(:html_element, 'ul', { class: 'nav nav-tabs' })
      tab_content = Element.new(:html_element, 'div', { class: 'tab-content' })
      content['codes'].each_with_index do |v, i|
        language, label = v['language'].split('|')
        label ||= language
        id = "snippet_#{@src.pos}_#{generate_id(v['language'])}"
        ul.children << Element.new(:html_element, 'li', { class: ('active' if i == 0) })
        ul.children.last.children << Element.new(:html_element, 'a', { href: "##{id}", 'data-toggle' => 'tab' })
        ul.children.last.children.last.children << Element.new(:raw, label)
        tab_content.children << Element.new(:html_element, 'pre', { class: "tab-pane#{' in active' if i == 0}", id: id })
        tab_content.children.last.children << Element.new(:raw, highlight(language, v['code']))
      end
      @tree.children << ul
      @tree.children << tab_content
    end
  when 'callout'
    callout = new_block_el(:html_element, 'div', { class: "alert alert-#{content['type']}" })
    callout.children << Element.new(:raw, parse_cached(content['body']))
    @tree.children << callout
  when 'image'
    clazz = case content['float']
    when 'left'
      'pull-left'
    when 'right'
      'pull-right'
    else
      nil
    end
    @tree.children << Element.new(:html_element, 'figure', { class: clazz })
    @tree.children.last.children << Element.new(:img, nil, { src: content['images'][0]['image'][0] })
    unless content['caption'].blank?
      @tree.children.last.children << Element.new(:html_element, 'figcaption')
      @tree.children.last.children.last.children << Element.new(:raw, parse_cached(content['caption']))
    end
  when 'if'
    @tree.children << Element.new(:comment, "if #{content['condition']}", { }, { start: true, condition: content['condition'], negation: false })
  when 'ifnot'
    @tree.children << Element.new(:comment, "if NOT #{content['condition']}", { }, { start: true, condition: content['condition'], negation: true })
  when 'endif'
    @tree.children << Element.new(:comment, '/if', { }, { start: false, condition: content['condition'] })
  when 'parameters'
    table = Element.new(:html_element, 'table', { class: 'table' })
    thead = Element.new(:html_element, 'thead')
    thead.children << Element.new(:html_element, 'tr')
    1.upto(content['cols']) do |col|
      thead.children.last.children << Element.new(:html_element, 'th')
      thead.children.last.children.last.children << Element.new(:raw, parse_cached(content['data']["h-#{col - 1}"]))
    end
    table.children << thead
    tbody = Element.new(:html_element, 'tbody')
    1.upto(content['rows']) do |row|
      tbody.children << Element.new(:html_element, 'tr')
      1.upto(content['cols']) do |col|
        md = content['data']["#{row - 1}-#{col - 1}"]
        id = generate_id(md)
        anchor = col == 1 ? "\n<a href=\"##{id}\" class=\"anchor\"><i class=\"fa fa-link\"></i></a>" : ''
        html = parse_cached("#{md}#{anchor}")
        tbody.children.last.children << Element.new(:html_element, 'td', col == 1 ? { id: id } : nil)
        tbody.children.last.children.last.children << Element.new(:raw, html)
      end
    end
    table.children << tbody
    @tree.children << table
  else
    raise "Block not supported: #{block}"
  end
end