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If specified, text search ignores case.

If specified, text search ignores diacritics (for example o-umlaut == o).

If specified, smart search is enabled. This includes the following behavior:

If specified, regular expression search is enabled. When using this flag, SMART_SEARCH flag is ignored.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants.