Deep Delete Via String Path

deep_delete

hash = { :a =>
              {
                 :a => { :a => "foo", :b => "bar" },
                 :b => { :a => "foo",  :c => "DELETEME" }
              },
         :b => {
                 :a => { :a => "foo", :b => "bar" },
                 :b => { :a => "foo",  :c => "baz" }
              },
         :c => {
                 :a => { :a => "foo", :b => "bar" },
                 :b => { :a => "foo",  :c => "baz" }
              }
}

require 'pp'

pp hash

class Hash
def deep_delete(path)

  begin
    path = path.split '.'
    leaf = path.pop

    path.inject(self) { |memo, elem| memo[elem.to_sym] }.delete(leaf.to_sym)
    self
  rescue
    self
  end

end
end

pp hash.deep_delete("a.b.c")
       .deep_delete("d.e.f")
       .deep_delete("a.a.a")
       .deep_delete("c.c.c")
       .deep_delete("timtischler@kaleo")