lib/rexml/dtd/notationdecl.rb

   1 require "rexml/child"
   2 module REXML
   3         module DTD
   4                 class NotationDecl < Child
   5                         START = "<!NOTATION"
   6                         START_RE = /^\s*#{START}/um
   7                         PUBLIC = /^\s*#{START}\s+(\w[\w-]*)\s+(PUBLIC)\s+((["']).*?\4)\s*>/um
   8                         SYSTEM = /^\s*#{START}\s+(\w[\w-]*)\s+(SYSTEM)\s+((["']).*?\4)\s*>/um
   9                         def initialize src
  10                                 super()
  11                                 if src.match( PUBLIC )
  12                                         md = src.match( PUBLIC, true )
  13                                 elsif src.match( SYSTEM )
  14                                         md = src.match( SYSTEM, true )
  15                                 else
  16                                         raise ParseException.new( "error parsing notation: no matching pattern", src )
  17                                 end
  18                                 @name = md[1]
  19                                 @middle = md[2]
  20                                 @rest = md[3]
  21                         end
  22
  23                         def to_s
  24                                 "<!NOTATION #@name #@middle #@rest>"
  25                         end
  26
  27                         def write( output, indent )
  28         indent( output, indent )
  29                                 output << to_s
  30                         end
  31
  32                         def NotationDecl.parse_source source, listener
  33                                 md = source.match( PATTERN_RE, true )
  34                                 thing = md[0].squeeze(" \t\n\r")
  35                                 listener.send inspect.downcase, thing
  36                         end
  37                 end
  38         end
  39 end