module GraphQL::Language

# File lib/graphql/language.rb, line 111
def self.add_space_between_numbers_and_names(query_str)
  # Fast check for digit followed by identifier char. If this doesn't match, skip the more expensive regexp entirely.
  return query_str unless query_str.match?(MAYBE_INVALID_NUMBER)
  return query_str unless query_str.match?(INVALID_NUMBER_FOLLOWED_BY_NAME_REGEXP)
  query_str.gsub(INVALID_NUMBER_FOLLOWED_BY_NAME_REGEXP, "\\k<leading>\\k<num> \\k<name>:")
end

# File lib/graphql/language.rb, line 53
def self.escape_single_quoted_newlines(query_str)
  scanner = StringScanner.new(query_str)
  inside_single_quoted_string = false #: bool
  inside_triple_quoted_string = false #: bool
  new_query_str = nil #: String?
  while !scanner.eos?
    if scanner.skip('"""')
      inside_triple_quoted_string = !inside_triple_quoted_string
      new_query_str && (new_query_str << scanner.matched)
    elsif scanner.skip(/(?:\\"|[^"\n\r])+/m)
      new_query_str && (new_query_str << scanner.matched)
    elsif scanner.skip('"')
      new_query_str && (new_query_str << '"')
      if !inside_triple_quoted_string
        inside_single_quoted_string = !inside_single_quoted_string
      end
    elsif scanner.skip("\n")
      if inside_single_quoted_string
        new_query_str ||= query_str[0, scanner.pos - 1]
        new_query_str << '\\n'
      else
        new_query_str && (new_query_str << "\n")
      end
    elsif scanner.skip("\r")
      if inside_single_quoted_string
        new_query_str ||= query_str[0, scanner.pos - 1]
        new_query_str << '\\r'
      else
        new_query_str && (new_query_str << "\r")
      end
    elsif scanner.eos?
      break
    else
      raise ArgumentError, "Unmatchable string scanner segment: #{scanner.rest.inspect}"
    end
  end
  new_query_str || query_str
end