# module Loofah::Helpers

### Public Class Methods

remove_extraneous_whitespace(string) click to toggle source

A helper to remove extraneous whitespace from text-ified HTML TODO: remove this in a future major-point-release.

    # File lib/loofah/helpers.rb, line 38
    def remove_extraneous_whitespace(string)
      Loofah.remove_extraneous_whitespace string
    end

sanitize(string_or_io) click to toggle source

A replacement for Rails's built-in `sanitize` helper.

    Loofah::Helpers.sanitize("<script src=http://ha.ckers.org/xss.js></script>") # => "&lt;script src=\"http://ha.ckers.org/xss.js\"&gt;&lt;/script&gt;"

    # File lib/loofah/helpers.rb, line 18
    def sanitize(string_or_io)
      loofah_fragment = Loofah.fragment(string_or_io)
      loofah_fragment.scrub!(:strip)
      loofah_fragment.xpath("./form").each { |form| form.remove }
      loofah_fragment.to_s
    end

sanitize_css(style_string) click to toggle source

A replacement for Rails's built-in `sanitize_css` helper.

    Loofah::Helpers.sanitize_css("display:block;background-image:url(http://www.ragingplatypus.com/i/cam-full.jpg)") # => "display: block;"

    # File lib/loofah/helpers.rb, line 30
    def sanitize_css style_string
      ::Loofah::HTML5::Scrub.scrub_css style_string
    end

strip_tags(string_or_io) click to toggle source

A replacement for Rails's built-in `strip_tags` helper.

    Loofah::Helpers.strip_tags("<div>Hello <b>there</b></div>") # => "Hello there"

    # File lib/loofah/helpers.rb, line 9
    def strip_tags(string_or_io)
      Loofah.fragment(string_or_io).text
    end