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.
Matches the content attribute of a meta tag. After the match:
$1:: delay $3:: url
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 31: def parse(content, uri) 32: if content && content =~ CONTENT_REGEXP 33: delay, url = $1, $3 34: 35: url = case url 36: when nil, "" then uri.to_s 37: when /^http/ then url 38: else "http://#{uri.host}#{url}" 39: end 40: 41: block_given? ? yield(delay, url) : [delay, url] 42: else 43: nil 44: end 45: end
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