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 8

def initialize(source, 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 14

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}") }
      matchall_codes = content['codes'].select { |code| code['language'].end_with?("|*") }
      if code || matchall_codes.size == 1
        code ||= matchall_codes.first
        @tree.children << Element.new(:html_element, 'pre', { class: 'highlight' })
        @tree.children.last.children << Element.new(:raw, code ? highlight(code['language'].split('|').first, code['code']) : "FIXME")
      else
        append_code_tabs matchall_codes
      end
    elsif content['codes'].size == 1
      code = content['codes'].first
      @tree.children << Element.new(:html_element, 'pre', { class: 'highlight' })
      @tree.children.last.children << Element.new(:raw, highlight(code['language'].split('|').first, code['code']))
    else
      append_code_tabs(content['codes'])
    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 'html'
    coder = HTMLEntities.new
    @tree.children << Element.new(:raw, coder.decode(content['body']))
  when 'image'
    clazz = case content['float']
    when 'left'
      'pull-left'
    when 'right'
      'pull-right'
    else
      nil
    end
    attrs = { src: content['images'][0]['image'][0] }
    if !content['width'].blank?
      attrs[:width] = content['width'].to_i
    end
    @tree.children << Element.new(:html_element, 'figure', { class: clazz })
    @tree.children.last.children << Element.new(:img, nil, attrs)
    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 'buttons'
    buttons = new_block_el(:html_element, 'div', { class: "text-center" })
    content['buttons'].each do |b|
      buttons.children << Element.new(:html_element, 'a', { href: b['link'], class: 'btn btn-default' })
      buttons.children.last.children << Element.new(:raw, b['label'])
    end
    @tree.children << buttons
  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'
    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("param #{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