*< Unrecognized backslash escape sequence in pattern */.

*< Error in {min,max} interval */.

* Enable case insensitive matching.

* Allow white space and comments within patterns @stable ICU 2.4 */.

* If set, '.' matches line terminators, otherwise '.' matching stops at line end.

* Error on Unrecognized backslash escapes.

*< An internal error (bug) was detected.

*< Internal error (bug) was detected.

*< Back-reference to a non-existent capture group.

*< Invalid capture group name.

*< Invalid value for match mode flags.

*< In a character range [x-y], x is greater than y.

* If set, treat the entire pattern as a literal string.

*< Look-Behind pattern matches must have a bounded maximum length.

*< In {min,max}, max is less than min.

*< Incorrectly nested parentheses in regexp pattern.

*< Missing closing bracket on a bracket expression.

* Control behavior of "$" and "^" * If set, recognize line terminators within string, * otherwise, match only at start and end of input string.

*< Decimal number is too large.

*< Pattern exceeds limits on size or complexity.

*< Incorrect Unicode property */.

*< Syntax error in regexp pattern.

*< Regular expression backtrack stack overflow.

*< Maximum allowed match time exceeded */.

*< Use of regexp feature that is not yet implemented.

* Unix-only line endings.

* Unicode word boundaries.