Elamur Groupantstranslation-meta-hebrew-chunk_codec
The groupant beside tools/translate/src/hebrew.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.
Facts
Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.
Components
| component | label | where |
|---|---|---|
| approximant | partial | approximant |
| ast | partial | ../syntax.json |
| cost | symbolic source derived | invariant |
| descriptant | present | descriptant |
| invariant | partial | invariant |
| tests | bounded native receipts | tests |
Obernants
The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.
| id | type | label | where |
|---|---|---|---|
behavior_complement | behavior_complement | partial source derived model | behavior_complement |
reverse_reconstruction | reverse_reconstruction | partial source derived model | reverse_reconstruction |
slash_transport | slash_transport | partial source derived model | slash_transport |
head_optional | head_optional | partial source derived model | head_optional |
gloss_filter | gloss_filter | partial source derived model | gloss_filter |
empty_chunks | empty_chunks | partial source derived model | empty_chunks |
Model text
descriptant
Description and epoch memory
Encode Entry as concept/tag/relation/head separated by slash and spaces. Decode rsplitn4 allowing slashes inside concept; malformed entries omitted; nonnumeric head becomes None. gloss splits dot/space/underscore, removes entries starting parenthesis.
Prospective epoch 2026-10-31
Models predicted metadata loss, bounded coordinate transport and deterministic tie selection before test changes. Production bytes are preserved; only five inline synthetic tests were appended across the group.
Observation epoch 2026-10-31
Selected named native tests are bound in tests.md; raw receipts are external under $MOVA_DATA/runs/octopus-wave32-tr_meta-2026-10-31. Syntax is generated twice and byte-compared. This is partial syntax without macro expansion or semantic resolution.
Gaps
No real annotator/model loads, corpus translation, teacher calls, GPU, full training/evaluation, or language-accuracy claim. No executable percentage surrogate is supplied: an appropriate reference metric/domain is not established. Supported future caps are1/2/5/10 percent only. Residual reconstruction is conditional on retained diagnostics and is not persistent learning.
approximant
Forward relation
Encode Entry as concept/tag/relation/head separated by slash and spaces. Decode rsplitn4 allowing slashes inside concept; malformed entries omitted; nonnumeric head becomes None. gloss splits dot/space/underscore, removes entries starting parenthesis.
invariant
Invariant and cost
Domain and preservation
Concepts cannot contain spaces for exact chunk roundtrip; valid Tag/Rel Display/parse; numeric heads interpreted zero-based within chunk.
Cost
O(B) scan/format plus allocated output bytes.
Counters and allocation arithmetic must remain representable. String/map costs include compared bytes; finite evidence is not a throughput estimate.
models
Typed models
Subject: exact source hash in manifest; observation is one call or the stated finite training pass. All models are partial source-derived relations, not universal proof. Domain and resource assumptions are in invariant.md. The baseline exclusion is an inner source-derived claim on that domain; reverse is a compatible-antecedent relation. Specialized relations hold fixed the parameters and tables unless stated otherwise. Evidence uses the named checks in tests.md; individual assertions cover only finite parts, other branches remain prospective.
behavior_complement
Malformed tag/relation fields cannot produce Entries; empty gloss parts never emitted.
reverse_reconstruction
On delimiter-safe entries chunk_of(chunk_key(E))=E. General input strings alias through omitted malformed entries and arbitrary nonnumeric head strings.
slash_transport
rsplitn4 preserves earlier slash characters inside concept.
head_optional
Any head parse failure means None, not a rejection.
gloss_filter
Only word starts '(' are filtered; this is not balanced-parenthesis parsing.
empty_chunks
Empty encoded chunk yields no entries and models silent Hebrew words.
tests
Checks and evidence
- hebrew::wave32::gloss_chunks_and_owned_alignment
Exact cargo commands use package translate, binary translate, --offline --locked and -- --exact --test-threads=1. External native-commands.json lists every name; debug and release run twice, numerical status and named outcomes retained. Some tests target other portions of the file; this fragment has source reasoning plus only the overlapping assertions.
Compiled controls mutate production decision expressions and restore exact original bytes; see external mutations.json and restoration receipt. No assertion-only mutation is counted. The evidence summary is authoritative for completed receipts. Scoped source reasoning and finite tests do not establish total branch coverage.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/translate/src/hebrew.rs.groupant/chunk_codec.groupant/