class Graphdown::Parser
Attributes
graph[R]
Public Class Methods
new()
click to toggle source
# File lib/graphdown/parser.rb, line 5 def initialize @graph = Graph.new end
Public Instance Methods
output()
click to toggle source
# File lib/graphdown/parser.rb, line 36 def output @graph.layer_nodes @graph.layout_nodes @graph.layout_edges @graph.to_svg end
parse(text)
click to toggle source
# File lib/graphdown/parser.rb, line 9 def parse(text) tokens = text.split(/(?<=[\]>])\s+/) 2.step(tokens.size, 2) do |n| # origins origin_labels = tokens[n - 2].scan(/(?<=\[).+?(?=\])/) origins = origin_labels.map do |label| @graph.find_node_by_label(label) || Node.new(label) end # targets target_labels = tokens[n].scan(/(?<=\[).+?(?=\])/) targets = target_labels.map do |label| @graph.find_node_by_label(label) || Node.new(label) end # edges direction = (tokens[n - 1] == "<->") ? :two_way : :forward origins.each do |origin| @graph << origin targets.each do |target| origin.connect(target, direction) @graph << target end end end end