# File lib/kwalify/yaml-parser.rb, line 764
    def path_linenum(path)
      return 1 if path.empty? || path == '/'
      elems = path.split('/')
      elems.shift if path[0] == ?/    # delete empty string on head
      last_elem = elems.pop
      c = @doc   # collection
      elems.each do |elem|
        if c.is_a?(Array)
          c = c[elem.to_i]
        elsif c.is_a?(Hash)
          c = c[elem]
        else
          assert false
        end
      end
      linenums = @linenums_table[c.__id__]
      if c.is_a?(Array)
        linenum = linenums[last_elem.to_i]
      elsif c.is_a?(Hash)
        linenum = linenums[last_elem]
      end
      return linenum
    end