The SRFI-4 also defines its reader macro. Sagittarius also suppots these. It
defines tagged vector and the tags can be s8, u8, s16,
u16, s32, u32, s64, u64, f32 or
f64. For each value of tags, the external representation of instances of
the vector is #_tag_(... elements ...)On Sagittarius, these reader macros are not automatically enabled. You need to
explicitly import it. For more detail, see
(sagittarius reader) - reader macro library.