rx-file/lib/rx-file/array_node.rb

52 lines
1.2 KiB
Ruby

module RxFile
# A ArrayNode is a Node for an Array. See Node for when and how nodes are used in RxFile.
# A ArrayNode has a list of children that hold the value node representations for
# the arrays values.
#
class ArrayNode < Node
def initialize ref
super(ref)
@children = []
end
def add c
@children << c
end
def is_simple?
return false if(@children.length > 7 )
short = true
@children.each do |c|
short = false unless c.is_simple?
end
short
end
# This defines the short output which is basically what you would write in ruby
# ie [ value1 , value2 , ...]
# The short is used for 7 or less SimpleNodes
def short_out(io,level)
io.write("[")
@children.each_with_index do |child , i|
child.out(io , level + 1 )
io.write ", " unless (i+1) == @children.length
end
io.write("]")
end
# Arrays start with the minus on each line "-"
# and each line has the value
def long_out io , level
indent = " " * level
@children.each_with_index do |child , i|
io.write "\n#{indent}" unless i == 0
io.write "- "
child.out(io , level + 1)
end
end
end
end