const regexp/syntax.ErrInvalidEscape

3 uses

	regexp/syntax (current package)
		parse.go#L35: 	ErrInvalidEscape         ErrorCode = "invalid escape sequence"
		parse.go#L891: 					return nil, &Error{ErrInvalidEscape, t[:2]}
		parse.go#L1411: 	return 0, "", &Error{ErrInvalidEscape, s[:len(s)-len(t)]}