Extracted the data-half of Pratt-style precedence parsing: the operator
table format and lookup. The climbing loop stays per-language because
the two canaries use opposite conventions (lua: higher prec = tighter;
prolog: lower prec = tighter, with xfx/xfy/yfx assoc tags) — forcing
one shared loop adds callback indirection that obscures more than it
shares. The brief's literal ask is "Grammar is a dict, not hardcoded
cond" and that's what gets shared.
Entry shape: (NAME PREC ASSOC). Three accessors: pratt-op-name /
pratt-op-prec / pratt-op-assoc. One traversal: pratt-op-lookup.
Ported lua/parser.sx — replaced 18-clause cond and the
lua-binop-right? hardcoded `or` with a 15-entry lua-op-table, now
queried via pratt-op-lookup. Ported prolog/parser.sx — pl-op-find
(linear walk reimpl) deleted; pl-op-lookup wraps pratt-op-lookup;
pl-token-op simplified to return the entry directly.
Verification:
- lua/test.sh: 185/185 = baseline.
- prolog/conformance.sh: 590/590 = baseline (timestamp-only diff).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Extracted the duplicated conformance plumbing into a single driver:
- lib/guest/conformance.sx — two helper fns that emit (gc-result NAME P F T)
lines for the bash side to grep: gc-dict-result for runners returning
a {:passed :failed :total} dict, and gc-counters-result for guests that
bump a global pass/fail counter from a test file load.
- lib/guest/conformance.sh — config-driven bash driver. Sources a per-lang
conf, locates sx_server, runs sx_server in either single-session "dict"
mode (one preload + many suite evals) or per-suite "counters" mode
(fresh sx_server per suite, with shared preloads). Aggregates and writes
scoreboard.{json,md} via per-lang emit_scoreboard_* functions.
- Ported lib/prolog/conformance.sh and lib/haskell/conformance.sh down to
one-line wrappers that exec the shared driver against their .conf file.
Verification:
- Prolog: 590/590 — diff vs baseline is timestamp-only.
- Haskell: 156/156 — significantly higher than the 0/18 in baseline. The
old conformance.sh was buggy (its `(ok-len 3 ...)` grep never matched,
defaulting every program to 0 pass / 1 fail). Updated baseline to the
true count; no actual test regressed. Plan baseline cell updated.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
