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Add CEK Machine section under Geography with live island demos

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geography/cek.sx: overview page (three registers, deref-as-shift
explanation) + demo page with 5 live islands (counter, computed chain,
reactive attrs, stopwatch effect+cleanup, batch coalescing). Nav entry,
router routes, defpage definitions. CEK exports (cekRun, makeCekState,
makeReactiveResetFrame, evalExpr) added to Sx public API via
platform_js.py.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-03-14 01:37:16 +00:00
parent 203f9a49a1
commit f96506024e
7 changed files with 246 additions and 86 deletions
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9
sx/sx/nav-data.sx
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@@ -166,6 +166,12 @@
(dict :label "Optimistic" :href "/sx/(geography.(isomorphism.optimistic))")
(dict :label "Offline" :href "/sx/(geography.(isomorphism.offline))")))
(define cek-nav-items (list
(dict :label "Overview" :href "/sx/(geography.(cek))"
:summary "The CEK machine — explicit evaluator with Control, Environment, Kontinuation. Three registers, pure step function.")
(dict :label "Demo" :href "/sx/(geography.(cek.demo))"
:summary "Live islands evaluated by the CEK machine. Counter, computed chains, reactive attributes — all through explicit continuation frames.")))
(define plans-nav-items (list
(dict :label "Status" :href "/sx/(etc.(plan.status))"
:summary "Audit of all plans — what's done, what's in progress, and what remains.")
@@ -384,7 +390,8 @@
:summary "Child-to-parent communication across render boundaries — spread, collect!, reactive-spread, built on scopes."}
{:label "Marshes" :href "/sx/(geography.(marshes))"
:summary "Where reactivity and hypermedia interpenetrate — server writes to signals, reactive transforms reshape server content, client state modifies how hypermedia is interpreted."}
{:label "Isomorphism" :href "/sx/(geography.(isomorphism))" :children isomorphism-nav-items})}
{:label "Isomorphism" :href "/sx/(geography.(isomorphism))" :children isomorphism-nav-items}
{:label "CEK Machine" :href "/sx/(geography.(cek))" :children cek-nav-items})}
{:label "Language" :href "/sx/(language)"
:children (list
{:label "Docs" :href "/sx/(language.(doc))" :children docs-nav-items}