Class: Wikipedia::Page

Inherits:
Object
  • Object
show all
Defined in:
lib/wikipedia/page.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(json) ⇒ Page

Returns a new instance of Page.



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# File 'lib/wikipedia/page.rb', line 3

def initialize(json)
  require 'json'
  @json = json
  @data = JSON::load(json)
end

Class Method Details

.sanitize(s) ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 109

def self.sanitize( s )
  if s
    s = s.dup

    # strip anything inside curly braces!
    while s =~ /\{\{[^\{\}]+?\}\}/
      s.gsub!(/\{\{[^\{\}]+?\}\}/, '')
    end

    # strip info box
    s.sub!(/^\{\|[^\{\}]+?\n\|\}\n/, '')

    # strip internal links
    s.gsub!(/\[\[([^\]\|]+?)\|([^\]\|]+?)\]\]/, '\2')
    s.gsub!(/\[\[([^\]\|]+?)\]\]/, '\1')

    # strip images and file links
    s.gsub!(/\[\[Image:[^\[\]]+?\]\]/, '')
    s.gsub!(/\[\[File:[^\[\]]+?\]\]/, '')

    # convert bold/italic to html
    s.gsub!(/'''''(.+?)'''''/, '<b><i>\1</i></b>')
    s.gsub!(/'''(.+?)'''/, '<b>\1</b>')
    s.gsub!(/''(.+?)''/, '<i>\1</i>')

    # misc
    s.gsub!(/<ref[^<>]*>[\s\S]*?<\/ref>/, '')
    s.gsub!(/<!--[^>]+?-->/, '')
    s.gsub!('  ', ' ')
    s.strip!

    # create paragraphs
    sections = s.split("\n\n")
    if sections.size > 1
      s = sections.map {|s| "<p>#{s.strip}</p>" }.join("\n")
    end

    s
  end
end

Instance Method Details

#categories ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 51

def categories
  page['categories'].map {|c| c['title'] } if page['categories']
end

#content ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 13

def content
  page['revisions'].first['*'] if page['revisions']
end

#coordinates ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 83

def coordinates
  page['coordinates'].first.values if page['coordinates']
end

#editurl ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 39

def editurl
  page['editurl']
end

#extlinks ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 59

def extlinks
  page['extlinks'].map {|c| c['*'] } if page['extlinks']
end

#fullurl ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 35

def fullurl
  page['fullurl']
end

#image_descriptionurl ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 71

def image_descriptionurl
  page['imageinfo'].first['descriptionurl'] if page['imageinfo']
end

#image_descriptionurls ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 79

def image_descriptionurls
  image_metadata.map {|img| img.image_descriptionurl }
end

#image_metadata ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 91

def image_metadata
  unless @cached_image_metadata
    if list = images
      filtered = list.select {|i| i =~ /:.+\.(jpg|jpeg|png|gif|svg)$/i && !i.include?("LinkFA-star") }
      @cached_image_metadata = filtered.map {|title| Wikipedia.find_image(title) }
    end
  end
  @cached_image_metadata || []
end

#image_url ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 67

def image_url
  page['imageinfo'].first['url'] if page['imageinfo']
end

#image_urls ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 75

def image_urls
  image_metadata.map {|img| img.image_url }
end

#images ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 63

def images
  page['images'].map {|c| c['title'] } if page['images']
end

#json ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 105

def json
  @json
end

#links ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 55

def links
  page['links'].map {|c| c['title'] } if page['links']
end

#page ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 9

def page
  @data['query']['pages'].values.first
end

#raw_data ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 87

def raw_data
  @data
end

#redirect? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wikipedia/page.rb', line 21

def redirect?
  content && content.match(/\#REDIRECT\s*\[\[(.*?)\]\]/i)
end

#redirect_title ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 25

def redirect_title
  if matches = redirect?
    matches[1]
  end
end

#sanitized_content ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 17

def sanitized_content
  self.class.sanitize(content)
end

#summary ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 47

def summary
  s = (page['extract'].split(pattern="=="))[0].strip
end

#templates ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 101

def templates
  page['templates'].map {|c| c['title'] } if page['templates']
end

#text ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 43

def text
  page['extract']
end

#title ⇒ Object 



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# File 'lib/wikipedia/page.rb', line 31

def title
  page['title']
end