# File lib/yaml/ypath.rb, line 25
25:         def YPath.each_path( str )
26:             #
27:             # Find choices
28:             #
29:             paths = []
30:             str = "(#{ str })"
31:             while str.sub!( /\(([^()]+)\)/, "\n#{ paths.length }\n" )
32:                 paths.push $1.split( '|' )
33:             end
34: 
35:             #
36:             # Construct all possible paths
37:             #
38:             all = [ str ]
39:             ( paths.length - 1 ).downto( 0 ) do |i|
40:                 all = all.collect do |a|
41:                     paths[i].collect do |p|
42:                         a.gsub( /\n#{ i }\n/, p )
43:                     end
44:                 end.flatten.uniq
45:             end
46:             all.collect do |path|
47:                 yield YPath.new( path )
48:             end
49:         end

    # File lib/yaml/ypath.rb, line 9
 9:         def initialize( str )
10:             @segments = []
11:             @predicates = []
12:             @flags = nil
13:             while str =~ /^\/?(\/|[^\/\[]+)(?:\[([^\]]+)\])?/
14:                 @segments.push $1
15:                 @predicates.push $2
16:                 str = $'
17:             end
18:             unless str.to_s.empty?
19:                 @segments += str.split( "/" )
20:             end
21:             if @segments.length == 0
22:                 @segments.push "."
23:             end
24:         end