class Mechanize::Page::Meta

This class encapsulates a Meta tag. Mechanize treats meta tags just like 'a' tags. Meta objects will contain links, but most likely will have no text.

Constants

CONTENT_REGEXP

Matches the content attribute of a meta tag. After the match:

$1:: delay
$3:: url

Public Class Methods

parse(content, uri) { |delay, url| ... } click to toggle source

Parses the delay and url from the content attribute of a meta tag. Parse requires the uri of the current page to infer a url when no url is specified. If a block is given, the parsed delay and url will be passed to it for further processing.

Returns nil if the delay and url cannot be parsed.

# <meta http-equiv="refresh" content="5;url=http://example.com/" />
uri = URI.parse('http://current.com/')

Meta.parse("5;url=http://example.com/", uri)  # => ['5', 'http://example.com/']
Meta.parse("5;url=", uri)                     # => ['5', 'http://current.com/']
Meta.parse("5", uri)                          # => ['5', 'http://current.com/']
Meta.parse("invalid content", uri)            # => nil
# File lib/mechanize/page/meta.rb, line 31
def parse(content, uri)
  if content && content =~ CONTENT_REGEXP
    delay, url = $1, $3

    dest = uri
    dest += url if url
    url = dest.to_s

    block_given? ? yield(delay, url) : [delay, url]
  else
    nil
  end
end