class DEBUGGER__::AbbrevCommand

def build config 

def build config
.each do |type, commands|
ands.each do |command|
ie = @trie
mmand.each_char do |c|
trie = trie.append(c, type)
d

def initialize config

config: { type: [commands...], ... } 
def initialize config
  @trie = TrieNode.new
  build config
end

def search str, if_none = nil 

def search str, if_none = nil
  trie = @trie
  str.each_char do |c|
    if trie = trie[c]
      return trie.type if trie.type
    else
      return if_none
    end
  end
  yield trie.candidates.map{|s| str + s} if block_given?
  if_none
end