---
title: "treebanks-render — Mova code model"
description: "Mova code model of tools/treebanks/src/render.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/treebanks/src/render.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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# treebanks-render

The groupant beside tools/treebanks/src/render.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/treebanks/src/render.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/treebanks/src/render.rs)
- **source SHA-256:** `f22997a728bfdf64…`
- **repository folder:** [`tools/treebanks/src/render.rs.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/treebanks/src/render.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 | `model.md` |
| **ast** | partial | `syntax.json` |
| **composition** | partial | [Composition](#composition) |
| **cost** | partial | [invariant-and-cost](#invariant-and-cost) |
| **descriptant** | present | [descriptant](#descriptant) |
| **invariant** | partial | [invariant-and-cost](#invariant-and-cost) |
| **tests** | 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) |
| `count_projection` | count_projection | partial source derived model | [count_projection](#count-projection) |
| `identity_lifetime` | identity_lifetime | partial source derived model | [identity_lifetime](#identity-lifetime) |
| `markdown_scope` | markdown_scope | partial source derived model | [markdown_scope](#markdown-scope) |
| `sort_ties` | sort_ties | partial source derived model | [sort_ties](#sort-ties) |

## Parts

- [treebanks-render-decimal-grouping](https://md.groupants.elamur.ai/free/en/mova/tools/treebanks/src/render.rs.groupant/decimal-grouping.groupant/)

## Model text


### descriptant

#### Descriptant

Card readme_md renders metadata, source attribution, split Counts and total; papers_md resolves Found identities against Matcher, sorts year/title, prints match method/fuzzy marker/alts and unmatched raw references. Empty found/unfound emits no-reference message. lang_md sums Counts and uses first card language/family; index_md sorts language/name and counts license categories. Formatting escapes pipes only in cell, converts surname-comma contributor names and groups decimal digits.

##### Epoch 2026-10-31

Prospective source reading identified conditional input alignment, information loss and failure order before tests. Existing production code is retained; added tests use actual helpers. Finite results update this source-bound model, not all parser/corpus semantics.

No executable percentage surrogate has a justified observation metric for these categorical/effectful APIs. Future profiles require metric, domain and real-reference evidence at caps 1/2/5/10%; no higher cap. Syntax is partial lexical Rust projection without macro expansion or semantic resolution.

### approximant

## Forward approximant

Card readme_md renders metadata, source attribution, split Counts and total; papers_md resolves Found identities against Matcher, sorts year/title, prints match method/fuzzy marker/alts and unmatched raw references. Empty found/unfound emits no-reference message. lang_md sums Counts and uses first card language/family; index_md sorts language/name and counts license categories. Formatting escapes pipes only in cell, converts surname-comma contributor names and groups decimal digits.

### Composition

Child fragments model one narrow helper each; their correctness alone does not establish orchestration.

The containing source wires this scoped relation to its callers. Treeagree proposal→gate→commit and treebanks parse→match→collect→render are actual joins; parsecmp is an independent diagnostic path. The external group model distinguishes these tags.

### catalog

## Typed models for treebanks-render

Subject: source SHA-256 `1d5101cda9ced92075a30cb2fd999239fc136ec6c5d315230f18c4c0fa15403a`; manifest supplies exact source/byte scope. Domain: admitted states in forward model, nonoverflow arithmetic and successful allocations. Observation: one terminating invocation, except explicitly described file trace. Source-derived partial relations; named finite tests constrain selected cases only. Each entry holds arguments and environment fixed except its stated intervention.

### behavior_complement

papers_md never downloads or links private library folders; only known anthology ids produce ACL links. Empty references return before Papers heading. Rendering cannot certify stats gates that were skipped by a direct caller.

Operator: inner exclusion on admitted domain. Evidence: source branch derivation plus tests.md; unexercised branches remain hypotheses. Oracle: evaluate the scoped actual helper on admissible fixtures and compare this observation. No universal proof.

### reverse_reconstruction

Rendered totals admit all split distributions with same sums; contributor reordering loses original comma formatting; cell trims edges and conflates empty strings with dash. Paper output constrains indexed title/year/method but cannot recover raw matching evidence or all index records.

Operator: compatible antecedent relation, retaining ambiguity. Evidence: source branch derivation plus tests.md; unexercised branches remain hypotheses. Oracle: evaluate the scoped actual helper on admissible fixtures and compare this observation. No universal proof.

### count_projection

Card displays empty nodes even though check_stats key excludes empty; equal validated tuples do not validate this displayed coordinate.

Operator: specialized observation relation under the stated fixed inputs. Evidence: source branch derivation plus tests.md; unexercised branches remain hypotheses. Oracle: evaluate the scoped actual helper on admissible fixtures and compare this observation. No universal proof.

### identity_lifetime

Found stores Src/index; reordering underlying Index before papers_md changes resolved paper, so collect/render must share stable Matcher.

Operator: specialized observation relation under the stated fixed inputs. Evidence: source branch derivation plus tests.md; unexercised branches remain hypotheses. Oracle: evaluate the scoped actual helper on admissible fixtures and compare this observation. No universal proof.

### markdown_scope

cell escapes pipes but raw references/title text are not globally escaped; no general Markdown injection-safety guarantee.

Operator: specialized observation relation under the stated fixed inputs. Evidence: source branch derivation plus tests.md; unexercised branches remain hypotheses. Oracle: evaluate the scoped actual helper on admissible fixtures and compare this observation. No universal proof.

### sort_ties

Stable paper sort uses year/title only, retaining incoming order for exact ties; global cards use language/name, licenses count descending then lexical.

Operator: specialized observation relation under the stated fixed inputs. Evidence: source branch derivation plus tests.md; unexercised branches remain hypotheses. Oracle: evaluate the scoped actual helper on admissible fixtures and compare this observation. No universal proof.

### tests

#### Bounded evidence — 2026-10-31

Source `tools/treebanks/src/render.rs` at SHA-256 `1d5101cda9ced92075a30cb2fd999239fc136ec6c5d315230f18c4c0fa15403a`. Selected actual-source tests in `treebanks`:

- `render::tests::formatting`

These names passed twice in debug and twice in release; the complete treebank/comparison slice has 25 target-qualified names and identical sorted outcomes in all four runs. Ten compiled behavior mutations (one per owned source) failed named runtime assertions; exact original/restored SHA-256 equality and positive reruns were checked. Zero assertion-only mutants, zero surviving exploratory mutants, zero production fixes. Fresh raw logs, numeric exits, commands and mutation hashes are external in the wave33 trees receipt set.

##### Scope and gaps

Only named finite assertions cover selected inputs; other branches and invalid-domain behavior remain source-derived. No corpus, network, downloads, annotation model, live teacher, full release build or site execution. The treebanks join is entirely in memory and parsecmp uses a tiny uniquely named temporary directory. Treeagree Registry::load uses the embedded UD registry. Tests are finite CPU observations, not universal semantic proof, title-match quality estimates or corpus accuracy.

### invariant-and-cost

#### Invariant and cost

Rendering O(input/output bytes plus paper/card sorting), with repeated totals over at most three splits. String allocations proportional to output; Counts addition assumes no u64 overflow. lang_md requires nonempty cards; Found indices must belong to unchanged Matcher indexes.

papers_md never downloads or links private library folders; only known anthology ids produce ACL links. Empty references return before Papers heading. Rendering cannot certify stats gates that were skipped by a direct caller.

The complement and specialized catalog constrain preserved coordinates and effect boundaries. Empty/malformed domains are only guaranteed where explicitly admitted. No whole-program cost bound follows from a helper bound.