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Chez Phase 2 (inc O): host String methods (jolt-nfca)

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Port the java.lang.String/CharSequence method surface to the Chez RT so
(.toUpperCase s), (.substring s a b), (.indexOf s x), the regex methods
(.matches/.replaceAll/.replaceFirst/.split), etc. run on a string target.

natives-str.ss holds jolt-string-method, ported from the seed's surface in
eval_resolve.janet: ASCII case mapping (byte-oriented like the seed), -1 on
indexOf miss, flonum numeric returns to match jolt's number model, Scheme
chars for charAt, and the regex methods over the irregex compiled via
jolt-re-pattern. record-method-dispatch gains a string? arm that falls
through to it (unsupported methods still throw).

Corpus prelude floor 2002 -> 2026 (+24), 0 new divergences. _str 27/27 vs
build/jolt; full jpm test + conformance x3 green.

The (. x m) dot-form (the . special form, distinct from .method sugar) and
the clojure.string namespace (needs prelude plumbing + Pattern) stay deferred.
This commit is contained in:
Yogthos 2026-06-18 20:36:39 -04:00
parent b7158e0690
commit 3ab53ba938
6 changed files with 209 additions and 2 deletions
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3
host/chez/jolt-chez.janet
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@ -20,7 +20,8 @@
(each f ["host/chez/emit.janet" "host/chez/driver.janet" "host/chez/rt.ss"
"host/chez/values.ss" "host/chez/collections.ss" "host/chez/seq.ss"
"host/chez/atoms.ss" "host/chez/predicates.ss" "host/chez/regex.ss"
"host/chez/ns.ss" "host/chez/post-prelude.ss" "host/chez/natives-meta.ss"]
"host/chez/ns.ss" "host/chez/post-prelude.ss" "host/chez/natives-meta.ss"
"host/chez/natives-str.ss" "host/chez/records.ss"]
(array/push parts (slurp f)))
(string/slice (string (hash (string/join parts))) 0))