parameters: (field, value)
return_statement: return enum_value.number
docstring: Parse an enum value.
  
    The value can be specified by a number (the enum value), or by
    a string literal (the enum name).
  
    Args:
      field: Enum field descriptor.
      value: String value.
  
    Returns:
      Enum value number.
  
    Raises:
      ValueError: If the enum value could not be parsed.
docstring_summary: Parse an enum value.
docstring_tokens: Parse an enum value .
function: def ParseEnum(field, value):
    """Parse an enum value.
  
    The value can be specified by a number (the enum value), or by
    a string literal (the enum name).
  
    Args:
      field: Enum field descriptor.
      value: String value.
  
    Returns:
      Enum value number.
  
    Raises:
      ValueError: If the enum value could not be parsed.
    """
    enum_descriptor = field.enum_type
    try:
      number = int(value, 0)
    except ValueError:
      # Identifier.
      enum_value = enum_descriptor.values_by_name.get(value, None)
      if enum_value is None:
        raise ValueError(
            'Enum type "%s" has no value named %s.' % (
                enum_descriptor.full_name, value))
    else:
      # Numeric value.
      enum_value = enum_descriptor.values_by_number.get(number, None)
      if enum_value is None:
        raise ValueError(
            'Enum type "%s" has no value with number %d.' % (
                enum_descriptor.full_name, number))
    return enum_value.number
function_tokens: def ParseEnum ( field , value ) : enum_descriptor = field . enum_type try : number = int ( value , 0 ) except ValueError : # Identifier. enum_value = enum_descriptor . values_by_name . get ( value , None ) if enum_value is None : raise ValueError ( 'Enum type "%s" has no value named %s.' % ( enum_descriptor . full_name , value ) ) else : # Numeric value. enum_value = enum_descriptor . values_by_number . get ( number , None ) if enum_value is None : raise ValueError ( 'Enum type "%s" has no value with number %d.' % ( enum_descriptor . full_name , number ) ) return enum_value . number