Orkuncakilkaya
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Crypto (#19): add the OS cryptographically-secure random surface (random_bytes/random_hex/random_u32, reading /dev/urandom) and a standard base64 encoder, completing the library alongside the existing SHA-256/ HMAC-SHA256/verify_hmac/hex/ct_equal. All pure integer IR, C-free. Uuid (#16): a new namespace for stable, collision-free IDs — v4 (random) and v7 (time-ordered) generation, plus parse/is_valid/to_text/equals/nil. UUIDs are canonical lowercase 36-char strings; v4 and v7's random tail draw from the crypto CSPRNG, so both carry the documented determinism caveat (mint at the edges, never inside lockstep simulation). Reuses the crypto prelude's fn_secure_bytes / fn_hex_encode. - examples/library/{crypto,uuid}.ludic: known-answer vectors (SHA-256, HMAC, base64 per RFC 4231/4648) and structural invariants (uuid version/variant bits, parse/equals), wired into `x test` (now 51 passed). - docs: per-symbol pages for every new method + a new Uuid section; inventory and impl-vs-docs coverage check pass. - seed regenerated; `x bootstrap-cfree` fixpoint holds. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
24 lines
754 B
Markdown
24 lines
754 B
Markdown
---
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id: uuid-v4
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name: Uuid.v4
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category: uuid
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kind: namespace-method
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tokens: Uuid.v4
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sig: Uuid.v4() -> string
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tip: Explicit alias for Uuid.new — a random (v4) UUID.
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order: 2
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ns: Uuid
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member: v4
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---
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An explicit alias for <a href="uuid-new"><code>Uuid.new</code></a>: generates a **v4** (random) UUID in canonical lowercase text form. Use this spelling when the surrounding code also uses <a href="uuid-v7"><code>Uuid.v7</code></a> and naming both by version reads more clearly than <code>new</code> versus <code>new_v7</code>. The behaviour, entropy, and non-determinism caveat are identical to <code>Uuid.new</code>.
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```ludic
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program V4 {
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entry {
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let a = Uuid.v4()
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let b = Uuid.v4()
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if a != b { print(1) } # two draws differ
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}
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}
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```
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