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type 2 is a place in the text or the list it names (a bool 4, an i64 5), and seven anchor instructions take the place of the thirteen of cursors and indices (103 opcodes now 97): LOAD and STORE an anchor state, START and END of a text or a list, MOVE, COUNT and AT naming it and a unit (a character, a line, an item); the load holds an anchor in a text as a cursor and in a list as an index (a mark in a list refused) and each anchor instruction as the runtime's own one for it (PURE_OP_CUR_*, PURE_OP_INDEX_*, numbered past a module's in module-run.h with the kept lists' steps; a module holding one refused), so the executor's, the batches' and the JIT's steps are those they were; the verifier holds MOVE, COUNT and AT to the text or list they name; new: AT in a text (a cursor so many characters or lines from its start, not_found past the end); COUNT's lines from 0; unit test anchors (AT and COUNT in a text, AT in a list, four refused); the tests' modules written with the anchor instructions; counts: b34 against b33 with batches matmul -1.36%, the rest within 0.08%, without batches within 0.04%; the bank's queries (six each, s33 on the 4b-2 aup's module) in_credit +0.28%, per_branch +0.23%, ranks +0.10%, the rest 0.00%; 008 and 027
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of type LIST (its items' record in its default) holds a list the event made, its number an i64 in the cell (0 an empty one), so lists keep their inside, batches and the JIT as they were (the JIT's append fast path leaves such records alone); LIST_VALUE (a copy of an event's list, nothing made for an empty one), LIST_BIND (a register, an event's list flagged PURE_LIST_BOUND, read and walked, never changed by code), APPEND_IN (an item into the list in a field of an event's list's item, copied first when another value shares it or a register is bound to it), sharing counted where cells take them; such records only in event lists (no stored, transient or message list, no key); the event's lists go as each event or view's body begins, registers given back their own; record field names may be paths (at.x: records in records, flattened by aup); NUM_PARSE (a text written as a JSON number, its nearest double, core's pure_parse_number); unit tests (values copied, shared then appended, a bound register seeing what it was bound to, three events alike, 6 refused; under ASan and UBSan too, which found the record kinds' missing LIST)
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The app model, the tree store and the HTTP host lived in
prototypes/connections among the earlier document runtime, the store was
known only by its format's name, and Vega compiled six Pure sources by path.
Now, as the README's principle has it:
core/ runtime, flow and the app model (module*.c), with what the core
asks of storage (state.h, store.h)
store/ the tree store (PURETRE3, PUREREC1)
serve/ pure-serve: HTTP host, outbound delivery, JSON in place
cli/ pure-run, pure-edit-module
A top-level make builds libpure.a (app model and store, for hosts to link)
and the hosts; make check runs the store's and the app model's tests. The
earlier runtime still builds from prototypes/connections against core/ and
store/ (check, check-tree and check-core pass). Design 009 records the rule:
parts by role behind libraries; git repositories split by coupling, so the
store stays here while its contract moves with the core, and Vega stays apart.
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