Module: Hpricot::Doc::Trav

Module | Hpricot::Doc::Trav
In: | lib/hpricot/modules.rb lib/hpricot/traverse.rb lib/hpricot/modules.rb lib/hpricot/traverse.rb

### Methods

author author root root title title

### Included Modules

Container::Trav Container::Trav

### Public Instance methods

author()

`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

[Source]

    # File lib/hpricot/traverse.rb, line 743
        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

author()

`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

[Source]

    # File lib/hpricot/traverse.rb, line 743
        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()

[Source]

    # File lib/hpricot/traverse.rb, line 787
        def root
          es = []
          children.each {|c| es << c if c.elem? }
          raise Hpricot::Error, "no element" if es.empty?
          raise Hpricot::Error, "multiple top elements" if 1 < es.length
          es[0]
        end

root()

[Source]

    # File lib/hpricot/traverse.rb, line 787
        def root
          es = []
          children.each {|c| es << c if c.elem? }
          raise Hpricot::Error, "no element" if es.empty?
          raise Hpricot::Error, "multiple top elements" if 1 < es.length
          es[0]
        end

title()

`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

[Source]

    # File lib/hpricot/traverse.rb, line 726
        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

title()

`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

[Source]

    # File lib/hpricot/traverse.rb, line 726
        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

[Validate]