Class: Zenweb::Page

Inherits:
Object
  • Object
show all
Defined in:
lib/zenweb-autolink.rb

Instance Method Summary collapse

Instance Method Details

#autolinked_html(html) ⇒ Object

Take the html and creates links to from any text that matches a page’s title to that page. Note that it is reasonably intelligent and only makes the link if the text isn’t already linked and is inside a span, b, p or li element. FIXME: Make it possible to override the elements in which it is acceptable to autolink



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# File 'lib/zenweb-autolink.rb', line 48

def autolinked_html(html)
  nodes = Nokogiri::HTML::fragment(html)
  acceptable_nodes_for_autolinking = %w{p li b em i}
    nodes.traverse do |node|
    next unless node.text?
    next unless acceptable_nodes_for_autolinking.include?(node.parent.name)
    node.replace(autolinked_html_fragment(node.text))
  end
  nodes.to_html
end

#autolinked_html_fragment(text) ⇒ Object

Takes a fragment of text and creates links from any text that matches a page’s title in that text. It matches the longest titles first. FIXME: Need a way of dealing with duplicate titles



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# File 'lib/zenweb-autolink.rb', line 63

def autolinked_html_fragment(text)
  links = []
  site.pages_with_titles_as_sorted_regular_expressions.each do |regexp,page|
    next if page == self
    next if page.title.length > text.length
    text.gsub!(regexp) do |match|
      links << "<a href='#{page.url}'>#{match}</a>"
      "%!#{links.size-1}!%"
    end
  end
  text.gsub!(/%!(\d+)!%/) do |match|
    links[$1.to_i]
  end
  text
end

#render_autolink(page, content) ⇒ Object

Autolinks any text in the page that matches the title of another page on the site



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# File 'lib/zenweb-autolink.rb', line 37

def render_autolink page, content
  autolinked_html content
end