Class: Kramdown::Converter::RemoveHtmlTags

Inherits:
Base
  • Object
show all
Defined in:
lib/kramdown/converter/remove_html_tags.rb

Overview

Removes all block (and optionally span) level HTML tags from the element tree.

This converter can be used on parsed HTML documents to get an element tree that will only contain native kramdown elements.

Note that the returned element tree may not be fully conformant (i.e. the content models of *some elements may be violated)!

This converter modifies the given tree in-place and returns it.

Constant Summary

Constants inherited from Base

Base::SMART_QUOTE_INDICES

Instance Attribute Summary

Attributes inherited from Base

#data, #options, #root, #warnings

Instance Method Summary collapse

Methods inherited from Base

apply_template, #apply_template_after?, #apply_template_before?, #basic_generate_id, convert, #extract_code_language, #extract_code_language!, #format_math, #generate_id, get_template, #highlight_code, #in_toc?, #output_header_level, #smart_quote_entity, #warning

Constructor Details

#initialize(root, options) ⇒ RemoveHtmlTags

Returns a new instance of RemoveHtmlTags.



27
28
29
30
 
# File 'lib/kramdown/converter/remove_html_tags.rb', line 27

def initialize(root, options)
  super
  @options[:template] = ''
end

Instance Method Details

#convert(el) ⇒ Object 



32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
 
# File 'lib/kramdown/converter/remove_html_tags.rb', line 32

def convert(el)
  real_el, el = el, el.value if el.type == :footnote

  children = el.children.dup
  index = 0
  while index < children.length
    if children[index].type == :xml_pi ||
        (children[index].type == :html_element && (children[index].value == 'style' ||
                                                   children[index].value == 'script'))
      children[index..index] = []
    elsif children[index].type == :html_element &&
        ((@options[:remove_block_html_tags] && children[index].options[:category] == :block) ||
         (@options[:remove_span_html_tags] && children[index].options[:category] == :span))
      children[index..index] = children[index].children
    else
      convert(children[index])
      index += 1
    end
  end
  el.children = children
  real_el || el
end