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Contents
# encoding: utf-8
module Infoboxer
module Tree
# Base class for all nodes with children.
class Compound < Node
def initialize(children = Nodes.new, params = {})
super(params)
@children = Nodes[*children]
@children.each{|c| c.parent = self}
end
# List of children
#
# @return {Nodes}
attr_reader :children
# Index of provided node in children list
#
# @return [Fixnum] or `nil` if not a child
def index_of(child)
children.index(child)
end
# @private
# Internal, used by {Parser}
def push_children(*nodes)
nodes.each{|c| c.parent = self}.each do |n|
@children << n
end
end
# See {Node#text}
def text
children.map(&:text).join(children_separator)
end
# See {Node#to_tree}
def to_tree(level = 0)
if children.count == 1 && children.first.is_a?(Text)
"#{indent(level)}#{children.first.text} <#{descr}>\n"
else
"#{indent(level)}<#{descr}>\n" +
children.map(&call(to_tree: level+1)).join
end
end
# Kinda "private" methods, used by Parser only -------------------
# @private
# Internal, used by {Parser}
def can_merge?(other)
false
end
# @private
# Internal, used by {Parser}
def closed!
@closed = true
end
# @private
# Internal, used by {Parser}
def closed?
@closed
end
# @private
# Internal, used by {Parser}
def empty?
children.empty?
end
protected
def children_separator
''
end
private
def _eq(other)
children == other.children
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems