const regexp/syntax.OpWordBoundary

4 uses

	regexp/syntax (current package)
		compile.go#L123: 	case OpWordBoundary:
		parse.go#L882: 					p.op(OpWordBoundary)
		regexp.go#L49: 	OpWordBoundary                 // matches word boundary `\b`
		regexp.go#L181: 	case OpWordBoundary: