class Plist::StreamParser

Constants

COMMENT_END
COMMENT_START
DOCTYPE_PATTERN
TEXT
XMLDECL_PATTERN

Public Class Methods

new( plist_data_or_file, listener ) click to toggle source
# File lib/plist/parser.rb, line 63
def initialize( plist_data_or_file, listener )
  if plist_data_or_file.respond_to? :read
    @xml = plist_data_or_file.read
  elsif File.exists? plist_data_or_file
    @xml = File.read( plist_data_or_file )
  else
    @xml = plist_data_or_file
  end

  @listener = listener
end

Public Instance Methods

parse() click to toggle source
# File lib/plist/parser.rb, line 82
def parse
  plist_tags = PTag::mappings.keys.join('|')
  start_tag  = %r<(#{plist_tags})([^>]*)>/
  end_tag    = %r<\/(#{plist_tags})[^>]*>/

  require 'strscan'

  @scanner = StringScanner.new( @xml )
  until @scanner.eos?
    if @scanner.scan(COMMENT_START)
      @scanner.scan(COMMENT_END)
    elsif @scanner.scan(XMLDECL_PATTERN)
    elsif @scanner.scan(DOCTYPE_PATTERN)
    elsif @scanner.scan(start_tag)
      @listener.tag_start(@scanner[1], nil)
      if (@scanner[2] =~ %r\/$/)
        @listener.tag_end(@scanner[1])
      end
    elsif @scanner.scan(TEXT)
      @listener.text(@scanner[1])
    elsif @scanner.scan(end_tag)
      @listener.tag_end(@scanner[1])
    else
      raise "Unimplemented element"
    end
  end
end