Method: Webby::Filters::BasePath#filter

Defined in:
lib/webby/filters/basepath.rb

#filter ⇒ Object

call-seq:

filter    => html

Process the original html document passed to the filter when it was created. The document will be scanned and the basepath for certain elements will be modified.

For example, if a document contains the following line:

<a href="/link/to/another/page.html">Page</a>

and the user has requested for the base path to be some other directory on the webserver – /some/other/directory. The result of the BasePath filter would be:

<a href="/some/other/directory/link/to/another/page.html">Page</a>



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# File 'lib/webby/filters/basepath.rb', line 66

def filter
  doc = @mode == :xml ? Hpricot.XML(@str) : Hpricot(@str)
  base_path = ::Webby.site.base
  attr_rgxp = %r/\[@(\w+)\]$/o
  sub_rgxp = %r/\A(?=\/)/o

  ::Webby.site.xpaths.each do |xpath|
    @attr_name = nil

    doc.search(xpath).each do |element|
      @attr_name ||= attr_rgxp.match(xpath)[1]
      a = element.get_attribute(@attr_name)
      element.set_attribute(@attr_name, a) if a.sub!(sub_rgxp, base_path)
    end
  end

  doc.to_html
end