---
title: "macula-converter — Mova code model"
description: "Mova code model of tools/macula/src/main.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/macula/src/main.rs.groupant/"
---
Elamur: [Mova](https://md.mova.elamur.ai/free/en/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · **Groupants**

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# macula-converter

The groupant beside tools/macula/src/main.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

- **kind:** groupant
- **status:** partial source bound model
- **source:** [`tools/macula/src/main.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/macula/src/main.rs)
- **source SHA-256:** `50f74dcd65d94630…`
- **repository folder:** [`tools/macula/src/main.rs.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/macula/src/main.rs.groupant)
- **repository commit:** `855da7bd4a7b`

> **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](#approximant) |
| **ast** | partial | `syntax.json` |
| **composition** | partial | [composition](#composition) |
| **cost** | symbolic source derived | [invariant](#invariant) |
| **descriptant** | present | [descriptant](#descriptant) |
| **invariant** | partial | [invariant](#invariant) |
| **tests** | executed bounded checks | [tests](#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](#behavior-complement) |
| `reverse_reconstruction` | reverse_reconstruction | partial source derived model | [reverse_reconstruction](#reverse-reconstruction) |
| `head_transport` | head_transport | partial source derived model | [head_transport](#head-transport) |
| `head_precedence` | head_precedence | partial source derived model | [head_precedence](#head-precedence) |
| `validation_boundary` | validation_boundary | partial source derived model | [validation_boundary](#validation-boundary) |
| `effect_partition` | effect_partition | partial source derived model | [effect_partition](#effect-partition) |

## Parts

- [macula-converter-xml-reader](https://md.groupants.elamur.ai/free/en/mova/tools/macula/src/main.rs.groupant/xml-reader.groupant/)
- [macula-converter-surface-order](https://md.groupants.elamur.ai/free/en/mova/tools/macula/src/main.rs.groupant/surface-order.groupant/)

## Model text


### descriptant

#### Descriptant

##### Prospective epoch

2026-10-31 source review predicted: XML event reader builds words/groups. tree splices function groups, chooses ordered heads, attaches relations and postprocesses lemor/relative/fixed/article rules. check validates roots and walks heads. surface_order transports arcs under stable id sort. conllu expands words/punctuation/MWT and transports heads again. Main splits strict Aramaic majority then writes books/maps; lessons/compare unexecuted. Resource model: Parse O(B); tree repeated leaves/scans O(n*d+n²) or larger repeated subtree work on pathological nesting; check O(n²), sort O(n log n), conllu O(n²+output bytes). Depth/allocation bounded in fixtures, batch buffers retained. No speed claim. External prospective.md predates test additions and preserves APIs, effect order, hazards and interaction hypotheses.

##### Observed epoch

Bounded real helper checks in tests.md constrain these models; syntax is a partial lexical projection with no macro expansion, name resolution or proof. Production expressions unchanged; five inline test modules added. Compiled mutants are temporary and exactly restored. Existing malformed-input and nonfinite domains remain explicit, not silently repaired. Parent composes this scope with siblings without adding overlapping costs twice.

Synthetic XML/tree/helpers only; all relation combinations, malformed XML, effects and teacher workflows untested.

### approximant

#### Forward relation

XML event reader builds words/groups. tree splices function groups, chooses ordered heads, attaches relations and postprocesses lemor/relative/fixed/article rules. check validates roots and walks heads. surface_order transports arcs under stable id sort. conllu expands words/punctuation/MWT and transports heads again. Main splits strict Aramaic majority then writes books/maps; lessons/compare unexecuted.

Domain: Node indices0-based, heads1-based/0 root. Nonempty valid tree required for conllu. Majority tie Hebrew. Actual reorder clears top. check roots first; transitive later invalid head may panic before global validation. XML errors panic; incomplete sentence omitted.

### invariant

#### Invariant and cost

##### Invariant

Node indices0-based, heads1-based/0 root. Nonempty valid tree required for conllu. Majority tie Hebrew. Actual reorder clears top. check roots first; transitive later invalid head may panic before global validation. XML errors panic; incomplete sentence omitted.

##### Cost

Parse O(B); tree repeated leaves/scans O(n*d+n²) or larger repeated subtree work on pathological nesting; check O(n²), sort O(n log n), conllu O(n²+output bytes). Depth/allocation bounded in fixtures, batch buffers retained. No speed claim.

##### Limits

Synthetic XML/tree/helpers only; all relation combinations, malformed XML, effects and teacher workflows untested. No percentage surrogate is implemented: categorical parsing/effect observations lack an admitted numerical error metric. Any future profile must define its metric/domain and use only1/2/5/10 percent caps.

### composition

#### Local composition

XML event reader builds words/groups. tree splices function groups, chooses ordered heads, attaches relations and postprocesses lemor/relative/fixed/article rules. check validates roots and walks heads. surface_order transports arcs under stable id sort. conllu expands words/punctuation/MWT and transports heads again. Main splits strict Aramaic majority then writes books/maps; lessons/compare unexecuted.

Children select narrow source functions with their exact byte intervals. Remaining branches stay in the file model; fragments are not exhaustive partitions. Calls and state joins follow the forward relation, not folder order. Shared scans/helpers are counted once in whole-file costs. Complement of composition is not union of complements; reverse composition retains compatible intermediates and caller premises.

### models

## Typed source-bound relations

Subject: exact source SHA-256 in manifest. Domain and resource premises are in invariant.md. Each model is partial, source-derived, over a single helper invocation or the described finite trace. Complements are proposed inner exclusions under those premises; reverse relations retain all compatible antecedents, with no unique inverse claim. The oracle is the named checks in tests.md; unexecuted cases remain hypotheses. No numerical approximation certificate.

### behavior_complement

Main excludes empty/book-filtered sentences. Half Aramaic cannot choose A. check success within valid-index domain excludes cycles/multiple roots/self-head. No semantic-domain fields emitted; lessons not executed.

### reverse_reconstruction

CoNLL-U admits different source groupings/order/metadata. Arcs invert only with permutation; original top cannot be recovered after reorder. Majority admits all assignments satisfying counts. Output cannot reconstruct omitted/bad sentences.

### head_transport

Old->new permutation p gives h'=0 or p(h-1)+1; conllu then maps through first-row offsets. Synthetic reorder checks exact arcs/idempotence.

### head_precedence

ClCl2 last content, NumpNP noun side, noun-like prep, copula predicate precede clause v/p/cl/content fallback. Rules are ordered, not votes.

### validation_boundary

Roots counted first, each direct head validated then ancestors walked; later bad parent may panic. Existing direct bad-head/cycle checks not total validation proof.

### effect_partition

Sorted file reads, check before accumulation, book/map writes later and nontransactional. Compare/lessons source-reviewed only; no teacher/corpus effects.

### tests

#### Checks and evidence

Named source/helper checks: tests::genesis_1_1, tests::surface_order_and_aramaic, tests::number_before_noun, tests::clause_before_the_head_clause, tests::copula, tests::saying, tests::lists, tests::valid_conllu, tests::aramaic, tests::check_shows_red, tests::verses, wave31::majority_tie_and_empty_parser.

Wave31 on2026-10-31:30 distinct exact tests passed twice debug and twice release, with equal sorted named outcomes. This node claims only its listed subset; empty subset means source review only. Six actual source-behavior mutants compiled, failed assertions, restored exact bytes/hash, and passed focused green reruns. No assertion-only mutants; existing swapped-input controls are separate. Receipt bundle: $MOVA_DATA/runs/octopus-wave31-corpus-2026-10-31 (native-commands.json, source-test-map.json, mutation-results.json, *.status/*.log). No live corpus, teacher, frozen assessment, download or production data used.

Synthetic XML/tree/helpers only; all relation combinations, malformed XML, effects and teacher workflows untested.