wander

TODO: Write a description here

Installation

1. Add the dependency to your shard.yml:

   dependencies:
     wander:
       github: russ/wander

2. Run shards install

Usage

require "wander"

TODO: Write usage instructions here

Development

TODO: Write development instructions here

Contributing

1. Fork it (https://github.com/russ/wander/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• Russ Smith - creator and maintainer

class Visitor
  def accept(node, seed)
    visit(node, seed)
  end
 
  def visit(node, seed)
    seed.call(node.not_nil!) unless node.nil?
    if node.not_nil!.left
      visit(node.not_nil!.left, seed)
    end
  end
end
 
class Each < Visitor
  def visit(node, &block)
    block.call(node)
    super
  end
 
  INSTANCE = new
end
 
class Node
  property name : String
  property left : Node?
 
  def initialize(@name)
    @left = nil
  end
 
  def initialize(@name, @left)
  end
 
  def each(&block : Node -> _)
    Each::INSTANCE.accept(self, block)
  end
end
 
Node.new("outer", Node.new("inner")).each do |node|
  puts node.name
end

#<Journey::GTG::TransitionTable:0x00005597ddc4a458 @accepting={2=>true, 3=>true}, @memos= {2=> [#<Journey::Nodes::Cat:0x00005597ddc34310 @left= #<Journey::Nodes::Slash:0x00005597ddc345e0 @left="/", @memo=#<Journey::Nodes::Cat:0x00005597ddc34310 ...>>, @memo=#<Journey::Nodes::Cat:0x00005597ddc34310 ...>, @right= #<Journey::Nodes::Literal:0x00005597ddc34388 @left="foo", @memo=#<Journey::Nodes::Cat:0x00005597ddc34310 ...>>>], 3=> [#<Journey::Nodes::Cat:0x00005597ddc4b7b8 @left= #<Journey::Nodes::Slash:0x00005597ddc4b920 @left="/", @memo=#<Journey::Nodes::Cat:0x00005597ddc4b7b8 ...>>, @memo=#<Journey::Nodes::Cat:0x00005597ddc4b7b8 ...>, @right= #<Journey::Nodes::Literal:0x00005597ddc4b808 @left="bar", @memo=#<Journey::Nodes::Cat:0x00005597ddc4b7b8 ...>>>]}, @regexp_states={}, @string_states={0=>{"/"=>1}, 1=>{"foo"=>2, "bar"=>3}}>