Class: HtmlBeautifier::HtmlParser

Inherits:
Parser
  • Object
show all
Defined in:
lib/htmlbeautifier/html_parser.rb

Constant Summary collapse

ELEMENT_CONTENT = 
%r{ (?:<%.*?%>|[^>])* }mx
HTML_VOID_ELEMENTS = 
%r{(?:
  area | base | br | col | command | embed | hr | img | input | keygen |
  link | meta | param | source | track | wbr
)}mix
HTML_BLOCK_ELEMENTS = 
%r{(?:
  address | article | aside | audio | blockquote | canvas | dd | details |
  dir | div | dl | dt | fieldset | figcaption | figure | footer | form |
  h1 | h2 | h3 | h4 | h5 | h6 | header | hr | li | menu | noframes |
  noscript | ol | p | pre | section | table | tbody | td | tfoot | th |
  thead | tr | ul | video
)}mix
MAPPINGS = 
[
  [%r{(<%-?=?)(.*?)(-?%>)}om,
   :embed],
  [%r{<!--\[.*?\]>}om,
   :open_ie_cc],
  [%r{<!\[.*?\]-->}om,
   :close_ie_cc],
  [%r{<!--.*?-->}om,
   :standalone_element],
  [%r{<!.*?>}om,
   :standalone_element],
  [%r{(<script#{ELEMENT_CONTENT}>)(.*?)(</script>)}omi,
   :foreign_block],
  [%r{(<style#{ELEMENT_CONTENT}>)(.*?)(</style>)}omi,
   :foreign_block],
  [%r{(<pre#{ELEMENT_CONTENT}>)(.*?)(</pre>)}omi,
   :preformatted_block],
  [%r{(<textarea#{ELEMENT_CONTENT}>)(.*?)(</textarea>)}omi,
   :preformatted_block],
  [%r{<#{HTML_VOID_ELEMENTS}(?: #{ELEMENT_CONTENT})?/?>}om,
   :standalone_element],
  [%r{</#{HTML_BLOCK_ELEMENTS}>}om,
   :close_block_element],
  [%r{<#{HTML_BLOCK_ELEMENTS}(?: #{ELEMENT_CONTENT})?>}om,
   :open_block_element],
  [%r{</#{ELEMENT_CONTENT}>}om,
   :close_element],
  [%r{<#{ELEMENT_CONTENT}[^/]>}om,
   :open_element],
  [%r{<[\w\-]+(?: #{ELEMENT_CONTENT})?/>}om,
   :standalone_element],
  [%r{(\s*\r?\n\s*)+}om,
   :new_lines],
  [%r{[^<\n]+},
   :text]
].freeze

Instance Method Summary collapse

Methods inherited from Parser

#map, #scan, #source_line_number, #source_so_far

Constructor Details

#initialize ⇒ HtmlParser

Returns a new instance of HtmlParser.



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# File 'lib/htmlbeautifier/html_parser.rb', line 57

def initialize
  super do |p|
    MAPPINGS.each do |regexp, method|
      p.map regexp, method
    end
  end
end