Class DateTimeFormatToken

be/src/runtime/datetime-parser-common.h:189–218

Stores metadata about a token within a datetime format.

/// Stores metadata about a token within a datetime format.
struct DateTimeFormatToken {
  /// Indicates the type of datetime format token.
  DateTimeFormatTokenType type;
  /// The position of where this token is supposed to start in the datetime string
  /// to be parsed.
  int pos;
  /// The length of the token.
  int len;
  /// A pointer to the beginning of this token in the format string.
  const char* val;
  /// True if FM modifier is active for this token. This overrides the FX modifier active
  /// for the whole format.
  bool fm_modifier;

  /// True if this is a text token that is surrounded by escaped double quotes making the
  /// content of the token double-escaped.
  bool is_double_escaped;

  /// Helper for fast div/modulo on FRACTION and YEAR tokens.
  int divisor;

  DateTimeFormatToken(DateTimeFormatTokenType type, int pos, int len, const char* val)
    : type(type),
      pos(pos),
      len(len),
      val(val),
      fm_modifier(false),
      is_double_escaped(false),
      divisor(1000000000) {}
};

/// Holds metadata about the datetime format. In the format parsing process the members of
/// this struct are populated gradually as the process advances. After the parsing process