Class: Srx::Format::Html

Inherits:
Xml show all
Defined in:
lib/srx/format/html.rb

Overview

Support for HTML. Tag grammar based on XML.

See Also:

Constant Summary collapse

ATT_VALUE =

Differs from XML in supporting unquoted values

See Also:

/#{Xml::ATT_VALUE}|(?:[^<>&"'`=\u0020\u0009\u000D\u000A]|#{Xml::REFERENCE})+/.freeze
ATTRIBUTE =

Differs from XML in supporting empty attributes

See Also:

/#{Xml::NAME}(?:#{Xml::EQUALS}#{ATT_VALUE})?/.freeze
START_TAG = 
/<(?<name>#{Xml::NAME})(?:#{Xml::SPACE}#{ATTRIBUTE})*#{Xml::SPACE}?>/.freeze
EMPTY_ELEM_TAG = 
%r{<#{Xml::NAME}(?:#{Xml::SPACE}#{ATTRIBUTE})*#{Xml::SPACE}?/>}.freeze
TAG = 
/#{START_TAG}|#{Xml::END_TAG}|#{EMPTY_ELEM_TAG}/.freeze
VOID_ELEMENTS =

A set of HTML tags that are “void elements”, meaning they do not need a paired closing tag.

See Also:

Set[
  'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input',
  'link', 'meta', 'menuitem', 'param', 'source', 'track', 'wbr'
].freeze

Constants inherited from Xml

Xml::CHAR_REF, Xml::END_TAG, Xml::ENTITY_REF, Xml::EQUALS, Xml::NAME, Xml::NAME_CHAR, Xml::NAME_START_CHAR, Xml::REFERENCE, Xml::SPACE

Instance Method Summary collapse

Methods inherited from Xml

#end_formatting?

Methods inherited from BaseFormat

#end_formatting?

Instance Method Details

#extract_markups(str) ⇒ Object 



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# File 'lib/srx/format/html.rb', line 38

def extract_markups(str)
  extract_markups_by_pattern(str, TAG)
end

#isolated_formatting?(markup) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/srx/format/html.rb', line 48

def isolated_formatting?(markup)
  return true if EMPTY_ELEM_TAG.match?(markup)

  START_TAG.match(markup) do |m|
    VOID_ELEMENTS.include?(m['name'])
  end
end

#start_formatting?(markup) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/srx/format/html.rb', line 42

def start_formatting?(markup)
  START_TAG.match(markup) do |m|
    !VOID_ELEMENTS.include?(m['name'])
  end
end