528 — a bare glyph code (main sign, portrait, day, month, or number)
A|B — A and B side by side, compressed to share the block
A/B — A above B, compressed to share the block
A^X — X as a superfix (top), compressing A
A_X — X as a subfix (bottom), compressing A
A<X — X as a prefix (left), compressing A
A>X — X as a postfix (right), compressing A
A^X<Y — chain fixes: X attaches first, then Y compresses A+X further
A@X — X infixed inside A's own interior; A's own internal detail is erased first (toggle in Block layout) so only A's outer outline and X show, e.g. 511@1000a
A@X_125.3 — infix binds first, then a fix (here a subfix) applies to the whole infixed unit — e.g. an infixed frame with a "curls" subfix at the bottom
(A|B)/(C|D) — four quadrants, each its own sub-composition
- — an empty cell, holds its place but renders nothing
24.2 — glyph 24, specific shape variant 2 (see catalog)
Separate whole blocks with a space. | binds tighter than / — use parens when mixing.
Searches every category at once. Syllabic readings are unconfirmed for most signs so far — this fills in as specific values are verified, not guessed.