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ruby--ruby/lib/uri/rfc3986_parser.rb
naruse 48559765b1 remove useless part of regexp
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-06-30 10:06:25 +00:00

105 lines
5.8 KiB
Ruby

module URI
class RFC3986_Parser # :nodoc:
# URI defined in RFC3986
# this regexp is modified not to host is not empty string
RFC3986_URI = /\A(?<URI>(?<scheme>[A-Za-z][+\-.0-9A-Za-z]*):(?<hier-part>\/\/(?<authority>(?:(?<userinfo>(?:%\h\h|[!$&-.0-;=A-Z_a-z~])*)@)?(?<host>(?<IP-literal>\[(?:(?<IPv6address>(?:\h{1,4}:){6}(?<ls32>\h{1,4}:\h{1,4}|(?<IPv4address>(?<dec-octet>[1-9]\d|1\d{2}|2[0-4]\d|25[0-5]|\d)\.\g<dec-octet>\.\g<dec-octet>\.\g<dec-octet>))|::(?:\h{1,4}:){5}\g<ls32>|\h{1,4}?::(?:\h{1,4}:){4}\g<ls32>|(?:(?:\h{1,4}:)?\h{1,4})?::(?:\h{1,4}:){3}\g<ls32>|(?:(?:\h{1,4}:){,2}\h{1,4})?::(?:\h{1,4}:){2}\g<ls32>|(?:(?:\h{1,4}:){,3}\h{1,4})?::\h{1,4}:\g<ls32>|(?:(?:\h{1,4}:){,4}\h{1,4})?::\g<ls32>|(?:(?:\h{1,4}:){,5}\h{1,4})?::\h{1,4}|(?:(?:\h{1,4}:){,6}\h{1,4})?::)|(?<IPvFuture>v\h+\.[!$&-.0-;=A-Z_a-z~]+))\])|\g<IPv4address>|(?<reg-name>(?:%\h\h|[!$&-.0-9;=A-Z_a-z~])+))?(?::(?<port>\d*))?)(?<path-abempty>(?:\/(?<segment>(?:%\h\h|[!$&-.0-;=@-Z_a-z~])*))*)|(?<path-absolute>\/(?:(?<segment-nz>(?:%\h\h|[!$&-.0-;=@-Z_a-z~])+)(?:\/\g<segment>)*)?)|(?<path-rootless>\g<segment-nz>(?:\/\g<segment>)*)|(?<path-empty>))(?:\?(?<query>(?:%\h\h|[!$&-.0-;=@-Z_a-z~\/?])*))?(?:\#(?<fragment>(?:%\h\h|[!$&-.0-;=@-Z_a-z~\/?])*))?)\z/
RFC3986_relative_ref = /\A(?<relative-ref>(?<relative-part>\/\/(?<authority>(?:(?<userinfo>(?:%\h\h|[!$&-.0-;=A-Z_a-z~])*)@)?(?<host>(?<IP-literal>\[(?<IPv6address>(?:\h{1,4}:){6}(?<ls32>\h{1,4}:\h{1,4}|(?<IPv4address>(?<dec-octet>[1-9]\d|1\d{2}|2[0-4]\d|25[0-5]|\d)\.\g<dec-octet>\.\g<dec-octet>\.\g<dec-octet>))|::(?:\h{1,4}:){5}\g<ls32>|\h{1,4}?::(?:\h{1,4}:){4}\g<ls32>|(?:(?:\h{1,4}:){,1}\h{1,4})?::(?:\h{1,4}:){3}\g<ls32>|(?:(?:\h{1,4}:){,2}\h{1,4})?::(?:\h{1,4}:){2}\g<ls32>|(?:(?:\h{1,4}:){,3}\h{1,4})?::\h{1,4}:\g<ls32>|(?:(?:\h{1,4}:){,4}\h{1,4})?::\g<ls32>|(?:(?:\h{1,4}:){,5}\h{1,4})?::\h{1,4}|(?:(?:\h{1,4}:){,6}\h{1,4})?::)|(?<IPvFuture>v\h+\.[!$&-.0-;=A-Z_a-z~]+)\])|\g<IPv4address>|(?<reg-name>(?:%\h\h|[!$&-.0-9;=A-Z_a-z~])+))?(?::(?<port>\d*))?)(?<path-abempty>(?:\/(?<segment>(?:%\h\h|[!$&-.0-;=@-Z_a-z~])*))*)|(?<path-absolute>\/(?:(?<segment-nz>(?:%\h\h|[!$&-.0-;=@-Z_a-z~])+)(?:\/\g<segment>)*)?)|(?<path-noscheme>(?<segment-nz-nc>(?:%\h\h|[!$&-.0-9;=@-Z_a-z~])+)(?:\/\g<segment>)*)|(?<path-empty>))(?:\?(?<query>(?:%\h\h|[!$&-.0-;=@-Z_a-z~\/?])*))?(?:\#(?<fragment>(?:%\h\h|[!$&-.0-;=@-Z_a-z~\/?])*))?)\z/
def split(uri) #:nodoc:
uri = uri.to_str
unless uri.ascii_only?
raise InvalidURIError, "URI must be ascii only #{uri.dump}"
end
if m = RFC3986_URI.match(uri)
ary = []
ary << m["scheme"]
if m["path-rootless"] # opaque
ary << nil # userinfo
ary << nil # host
ary << nil # port
ary << nil # registry
ary << nil # path
ary << m["path-rootless"]
ary[-1] << '?' << m["query"] if m["query"]
ary << nil # query
ary << m["fragment"]
else # normal
ary << m["userinfo"]
ary << m["host"]
ary << m["port"]
ary << nil # registry
ary << (m["path-abempty"] || m["path-absolute"] || m["path-empty"])
ary << nil # opaque
ary << m["query"]
ary << m["fragment"]
end
elsif m = RFC3986_relative_ref.match(uri)
ary = [nil]
ary << m["userinfo"]
ary << m["host"]
ary << m["port"]
ary << nil # registry
ary << (m["path-abempty"] || m["path-absolute"] || m["path-noscheme"] || m["path-empty"])
ary << nil # opaque
ary << m["query"]
ary << m["fragment"]
else
raise InvalidURIError, "bad URI(is not URI?): #{uri}"
end
end
def parse(uri) # :nodoc:
scheme, userinfo, host, port,
registry, path, opaque, query, fragment = self.split(uri)
if scheme && URI.scheme_list.include?(scheme.upcase)
URI.scheme_list[scheme.upcase].new(scheme, userinfo, host, port,
registry, path, opaque, query,
fragment, self)
else
Generic.new(scheme, userinfo, host, port,
registry, path, opaque, query,
fragment, self)
end
end
def join(*uris) # :nodoc:
uris[0] = convert_to_uri(uris[0])
uris.inject :merge
end
@@to_s = Kernel.instance_method(:to_s)
def inspect
@@to_s.bind(self).call
end
def regexp
{
SCHEME: /\A[A-Za-z][A-Za-z0-9+\-.]*\z/,
USERINFO: /\A(?:%\h\h|[!$&-.0-;=A-Z_a-z~])*\z/,
HOST: /\A(?:(?<IP-literal>\[(?:(?<IPv6address>(?:\h{1,4}:){6}(?<ls32>\h{1,4}:\h{1,4}|(?<IPv4address>(?<dec-octet>[1-9]\d|1\d{2}|2[0-4]\d|25[0-5]|\d)\.\g<dec-octet>\.\g<dec-octet>\.\g<dec-octet>))|::(?:\h{1,4}:){5}\g<ls32>|\h{,4}::(?:\h{1,4}:){4}\g<ls32>|(?:(?:\h{1,4}:)?\h{1,4})?::(?:\h{1,4}:){3}\g<ls32>|(?:(?:\h{1,4}:){,2}\h{1,4})?::(?:\h{1,4}:){2}\g<ls32>|(?:(?:\h{1,4}:){,3}\h{1,4})?::\h{1,4}:\g<ls32>|(?:(?:\h{1,4}:){,4}\h{1,4})?::\g<ls32>|(?:(?:\h{1,4}:){,5}\h{1,4})?::\h{1,4}|(?:(?:\h{1,4}:){,6}\h{1,4})?::)|(?<IPvFuture>v\h+\.[!$&-.0-;=A-Z_a-z~]+))\])|\g<IPv4address>|(?<reg-name>(?:%\h\h|[!$&-.0-9;=A-Z_a-z~])*))\z/,
ABS_PATH: /\A\/(?:%\h\h|[!$&-.0-;=@-Z_a-z~])*(?:\/(?:%\h\h|[!$&-.0-;=@-Z_a-z~])*)*\z/,
REL_PATH: /\A(?:%\h\h|[!$&-.0-;=@-Z_a-z~])+(?:\/(?:%\h\h|[!$&-.0-;=@-Z_a-z~])*)*\z/,
QUERY: /\A(?:%\h\h|[!$&-.0-;=@-Z_a-z~\/?])*\z/,
FRAGMENT: /\A(?:%\h\h|[!$&-.0-;=@-Z_a-z~\/?])*\z/,
OPAQUE: nil,
PORT: /\A[\x09\x0a\x0c\x0d ]*\d*[\x09\x0a\x0c\x0d ]*\z/,
}
end
private
def convert_to_uri(uri)
if uri.is_a?(URI::Generic)
uri
elsif uri = String.try_convert(uri)
parse(uri)
else
raise ArgumentError,
"bad argument (expected URI object or URI string)"
end
end
end # class Parser
end # module URI