Class: Pubid::W3c::UrnParser

Inherits:
UrnParser::Base show all
Defined in:
lib/pubid/w3c/urn_parser.rb

Overview

Parses W3C URNs back into identifiers by reconstructing the printed form and delegating to the flavor's text parser.

UrnGenerator emits urn:w3c:<type-down>:<code>[:<date>]. The first body segment is the maturity token only when it is one of the known tokens AND a code segment follows it (a typed URN always has ≥2 segments); a single-segment body is always a bare code — even one that happens to spell a token, e.g. urn:w3c:rec -> W3C rec (a Standard, not a REC).

Examples:

  • urn:w3c:wd:charmod:19991129 -> W3C WD-charmod-19991129
  • urn:w3c:note:xml-names -> W3C NOTE-xml-names
  • urn:w3c:2dcontext -> W3C 2dcontext

Constant Summary collapse

KNOWN_TOKENS = 
%w[note dnote wd cr crd rec pr per spsd obsl].freeze

Instance Method Summary collapse

Methods inherited from UrnParser::Base

parse

Instance Method Details

#parse_urn(urn) ⇒ Object 



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# File 'lib/pubid/w3c/urn_parser.rb', line 21

def parse_urn(urn)
  parts = split_parts(strip_namespace(urn))

  if parts.size > 1 && KNOWN_TOKENS.include?(parts.first)
    token = parts.shift.upcase
    text = "W3C #{token}-#{parts.shift}"
  else
    text = "W3C #{parts.shift}"
  end
  text += "-#{parts.shift}" unless parts.empty?

  flavor_parse(text)
end