Method: JSONPathGrammar#_nt_bareword

Defined in:

lib/jsonpath/parser.rb

#_nt_bareword ⇒ Object

# File 'lib/jsonpath/parser.rb', line 1816

def _nt_bareword
  start_index = index
  if node_cache[:bareword].has_key?(index)
    cached = node_cache[:bareword][index]
    @index = cached.interval.end if cached
    return cached
  end

  s0, i0 = [], index
  loop do
    if input.index(Regexp.new('[a-zA-Z0-9]'), index) == index
      r1 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      r1 = nil
    end
    if r1
      s0 << r1
    else
      break
    end
  end
  if s0.empty?
    self.index = i0
    r0 = nil
  else
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  end

  node_cache[:bareword][start_index] = r0

  return r0
end