lib/tree/utils/path_methods.rb
# path_methods.rb - This file is part of the RubyTree package.
#
# = path_methods.rb - Provides methods for extracting the node path.
#
# Author:: Marco Ziccardi and Anupam Sengupta (anupamsg@gmail.com)
#
# Time-stamp: <2022-06-20 02:00:11 anupam>
#
# Copyright (C) 2015, 2021, 2022 Anupam Sengupta <anupamsg@gmail.com>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# - Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# - Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# - Neither the name of the organization nor the names of its contributors may
# be used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# frozen_string_literal: true
module Tree
module Utils
# Provides utility methods for path extraction
module TreePathHandler
# @!group Node Path
# Returns the path of this node from the root as a string, with the node
# names separated using the specified separator. The path is listed left
# to right from the root node.
#
# @param separator The optional separator to use. The default separator is
# '+=>+'.
#
# @return [String] The node path with names separated using the specified
# separator.
def path_as_string(separator = '=>')
path_as_array.join(separator)
end
# Returns the node-names from this node to the root as an array. The first
# element is the root node name, and the last element is this node's name.
#
# @return [Array] The array containing the node names for the path to this
# node
def path_as_array
get_path_name_array.reverse
end
# @!visibility private
#
# Returns the path names in an array. The first element is the name of
# this node, and the last element is the root node name.
#
# @return [Array] An array of the node names for the path from this node
# to its root.
def get_path_name_array(current_array_path = [])
path_array = current_array_path + [name]
if parent # Recurse to parent node.
parent.get_path_name_array(path_array)
else # else If detached node or root node.
path_array
end
end
protected :get_path_name_array
# @!endgroup
end
end
end