pkg regexp/syntax, const ErrInvalidNamedCapture = "invalid named capture"
pkg regexp/syntax, const ErrInvalidPerlOp = "invalid or unsupported Perl syntax"
pkg regexp/syntax, const ErrInvalidRepeatOp = "invalid nested repetition operator"
pkg regexp/syntax, const ErrInvalidRepeatSize = "invalid repeat count"
pkg regexp/syntax, const ErrInvalidUTF8 = "invalid UTF-8"
pkg regexp/syntax, const ErrMissingBracket = "missing closing ]"

  This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.

  0. Additional Definitions.

  As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.