class RSS::Parser
Public Class Methods
default_parser()
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# File rss-0.3.1/lib/rss/parser.rb, line 61 def default_parser @@default_parser || AVAILABLE_PARSERS.first end
default_parser=(new_value)
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Set @@default_parser to new_value if it is one of the available parsers. Else raise NotValidXMLParser
error.
# File rss-0.3.1/lib/rss/parser.rb, line 67 def default_parser=(new_value) if AVAILABLE_PARSERS.include?(new_value) @@default_parser = new_value else raise NotValidXMLParser.new(new_value) end end
new(rss, parser_class=self.class.default_parser)
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# File rss-0.3.1/lib/rss/parser.rb, line 107 def initialize(rss, parser_class=self.class.default_parser) @parser = parser_class.new(normalize_rss(rss)) end
parse(rss, *args)
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# File rss-0.3.1/lib/rss/parser.rb, line 75 def parse(rss, *args) if args.last.is_a?(Hash) options = args.pop else options = {} end do_validate = boolean_argument(args[0], options[:validate], true) ignore_unknown_element = boolean_argument(args[1], options[:ignore_unknown_element], true) parser_class = args[2] || options[:parser_class] || default_parser parser = new(rss, parser_class) parser.do_validate = do_validate parser.ignore_unknown_element = ignore_unknown_element parser.parse end
Private Class Methods
boolean_argument(positioned_value, option_value, default)
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# File rss-0.3.1/lib/rss/parser.rb, line 92 def boolean_argument(positioned_value, option_value, default) value = positioned_value if value.nil? and not option_value.nil? value = option_value end value = default if value.nil? value end
Private Instance Methods
maybe_xml?(source)
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maybe_xml? tests if source is a string that looks like XML
.
# File rss-0.3.1/lib/rss/parser.rb, line 131 def maybe_xml?(source) source.is_a?(String) and /</ =~ source end
normalize_rss(rss)
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Try to get the XML
associated with rss
. Return rss
if it already looks like XML
, or treat it as a URI, or a file to get the XML
,
# File rss-0.3.1/lib/rss/parser.rb, line 116 def normalize_rss(rss) return rss if maybe_xml?(rss) uri = to_uri(rss) if uri.respond_to?(:read) uri.read elsif (RUBY_VERSION >= '2.7' || !rss.tainted?) and File.readable?(rss) File.open(rss) {|f| f.read} else rss end end
to_uri(rss)
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Attempt to convert rss to a URI, but just return it if there’s a ::URI::Error
# File rss-0.3.1/lib/rss/parser.rb, line 137 def to_uri(rss) return rss if rss.is_a?(::URI::Generic) begin ::URI.parse(rss) rescue ::URI::Error rss end end