Method anchor

include/reflex/pattern.h:669–669

    Position negate(bool b)          const { return b ? Position(k | NEGATE) : Position(k & ~NEGATE); }
    Position ticked(bool b)          const { return b ? Position(k | TICKED) : Position(k & ~TICKED); }
    Position anchor(bool b)          const { return b ? Position(k | ANCHOR) : Position(k & ~ANCHOR); }
    Position accept(bool b)          const { return b ? Position(k | ACCEPT) : Position(k & ~ACCEPT); }
    Position lazy(Lazy l)            const { return Position((k & 0x00ffffffffffffffULL) | static_cast<value_type>(l) << 56); }
    Position pos()                   const { return Position(k & 0x0000ffffffffffffULL); }