giles 4ce4762237 Add spec/stdlib.sx: 46 primitives become library functions ...

The irreducible primitive set drops from 79 to 33. Everything that can
be expressed in SX is now a library function in stdlib.sx, loaded after
evaluator.sx and before render.sx.

Moved to stdlib.sx (pure SX, no host dependency):
- Logic: not
- Comparison: != <= >= eq? eqv? equal?
- Predicates: nil? boolean? number? string? list? dict? continuation?
  empty? odd? even? zero? contains?
- Arithmetic: inc dec abs ceil round min max clamp
- Collections: first last rest nth cons append reverse flatten range
  chunk-every zip-pairs vals has-key? merge assoc dissoc into
- Strings: upcase downcase string-length substring string-contains?
  starts-with? ends-with? split join replace
- Text: pluralize escape assert parse-datetime

Remaining irreducible primitives (33):
  + - * / mod floor pow sqrt = < > type-of symbol-name keyword-name
  str slice index-of upper lower trim char-from-code list dict concat
  get len keys dict-set! append! random-int json-encode format-date
  parse-int format-decimal strip-tags sx-parse error apply

All hosts: JS 957+1080, Python 744, OCaml 952 — zero regressions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-16 08:55:57 +00:00

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