PAL.C.T MINI SHELL
require "rexml/child"
module REXML
module DTD
class EntityDecl < Child
START = "<!ENTITY"
START_RE = /^\s*#{START}/um
PUBLIC = /^\s*#{START}\s+(?:%\s+)?(\w+)\s+PUBLIC\s+((["']).*?\3)\s+((["']).*?\5)\s*>/um
SYSTEM = /^\s*#{START}\s+(?:%\s+)?(\w+)\s+SYSTEM\s+((["']).*?\3)(?:\s+NDATA\s+\w+)?\s*>/um
PLAIN = /^\s*#{START}\s+(\w+)\s+((["']).*?\3)\s*>/um
PERCENT = /^\s*#{START}\s+%\s+(\w+)\s+((["']).*?\3)\s*>/um
# <!ENTITY name SYSTEM "...">
# <!ENTITY name "...">
def initialize src
super()
md = nil
if src.match( PUBLIC )
md = src.match( PUBLIC, true )
@middle = "PUBLIC"
@content = "#{md[2]} #{md[4]}"
elsif src.match( SYSTEM )
md = src.match( SYSTEM, true )
@middle = "SYSTEM"
@content = md[2]
elsif src.match( PLAIN )
md = src.match( PLAIN, true )
@middle = ""
@content = md[2]
elsif src.match( PERCENT )
md = src.match( PERCENT, true )
@middle = ""
@content = md[2]
end
raise ParseException.new("failed Entity match", src) if md.nil?
@name = md[1]
end
def to_s
rv = "<!ENTITY #@name "
rv << "#@middle " if @middle.size > 0
rv << @content
rv
end
def write( output, indent )
indent( output, indent )
output << to_s
end
def EntityDecl.parse_source source, listener
md = source.match( PATTERN_RE, true )
thing = md[0].squeeze(" \t\n\r")
listener.send inspect.downcase, thing
end
end
end
end
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