Class: OpenGraphPlus::Parser

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

Constant Summary collapse

REQUIRED_TAGS = 
%w[og:title og:type og:image og:url].freeze
%w[og:description og:site_name twitter:card twitter:title twitter:image].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(html) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/opengraphplus/parser.rb', line 12

def initialize(html)
  @html = html.to_s
  @tags = parse_meta_tags
end

Instance Attribute Details

#html ⇒ Object (readonly)

Returns the value of attribute html.



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# File 'lib/opengraphplus/parser.rb', line 10

def html
  @html
end

Instance Method Details

#[](property) ⇒ Object 



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# File 'lib/opengraphplus/parser.rb', line 29

def [](property)
  @tags[property]
end

#all_tags ⇒ Object 



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# File 'lib/opengraphplus/parser.rb', line 25

def all_tags
  @tags.dup
end

#errors ⇒ Object 



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# File 'lib/opengraphplus/parser.rb', line 37

def errors
  REQUIRED_TAGS.reject { |tag| @tags.key?(tag) }
end

#og_tags ⇒ Object 



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# File 'lib/opengraphplus/parser.rb', line 17

def og_tags
  @tags.select { |key, _| key.start_with?("og:") }
end

#twitter_tags ⇒ Object 



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# File 'lib/opengraphplus/parser.rb', line 21

def twitter_tags
  @tags.select { |key, _| key.start_with?("twitter:") }
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/opengraphplus/parser.rb', line 33

def valid?
  errors.empty?
end

#warnings ⇒ Object 



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# File 'lib/opengraphplus/parser.rb', line 41

def warnings
  RECOMMENDED_TAGS.reject { |tag| @tags.key?(tag) }
end