Methods

Included Modules

Hpricot::Doc::Trav

Public Instance Methods

author() click to toggle source

author searches author and return it as a text. It returns nil if not found.

author searchs following information.

  • <meta name=“author” content=“author-name”> in HTML

  • <link rev=“made” title=“author-name”> in HTML

  • <dc:creator>author-name</dc:creator> in RSS

  • <dc:publisher>author-name</dc:publisher> in RSS

# File lib/hpricot/traverse.rb, line 761
def author
  traverse_element('meta',
    '{http://www.w3.org/1999/xhtml}meta') {|e|
    begin
      next unless e.fetch_attr('name').downcase == 'author'
      author = e.fetch_attribute('content').strip
      return author if !author.empty?
    rescue IndexError
    end
  }

  traverse_element('link',
    '{http://www.w3.org/1999/xhtml}link') {|e|
    begin
      next unless e.fetch_attr('rev').downcase == 'made'
      author = e.fetch_attribute('title').strip
      return author if !author.empty?
    rescue IndexError
    end
  }

  if channel = find_element('{http://purl.org/rss/1.0/}channel')
    channel.traverse_element('{http://purl.org/dc/elements/1.1/}creator') {|e|
      begin
        author = e.extract_text.strip
        return author if !author.empty?
      rescue IndexError
      end
    }
    channel.traverse_element('{http://purl.org/dc/elements/1.1/}publisher') {|e|
      begin
        author = e.extract_text.strip
        return author if !author.empty?
      rescue IndexError
      end
    }
  end

  nil
end
root() click to toggle source
# File lib/hpricot/traverse.rb, line 805
def root
  es = []
  children.each {|c| es << c if c.elem? } if children
  raise Hpricot::Error, "no element" if es.empty?
  raise Hpricot::Error, "multiple top elements" if 1 < es.length
  es[0]
end
title() click to toggle source

title searches title and return it as a text. It returns nil if not found.

title searchs following information.

  • <title>…</title> in HTML

  • <title>…</title> in RSS

# File lib/hpricot/traverse.rb, line 744
def title
  e = find_element('title',
    '{http://www.w3.org/1999/xhtml}title',
    '{http://purl.org/rss/1.0/}title',
    '{http://my.netscape.com/rdf/simple/0.9/}title')
  e && e.extract_text
end

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