Elamur Groupantstreebanks-refs
The groupant beside tools/treebanks/src/refs.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 | model.md |
| ast | partial | syntax.json |
| composition | partial | Composition |
| cost | partial | invariant-and-cost |
| descriptant | present | descriptant |
| invariant | partial | invariant-and-cost |
| tests | bounded checks | 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 |
span_priority | span_priority | partial source derived model | span_priority |
year_tolerance | year_tolerance | partial source derived model | year_tolerance |
byte_coordinates | byte_coordinates | partial source derived model | byte_coordinates |
method_identity | method_identity | partial source derived model | method_identity |
Parts
Model text
descriptant
Descriptant
Unicode token folding retains original UTF-8 byte boundaries. Index stores first id/DOI and full/article-skipped title variants. Matcher gathers URL and ACL DOI ids, other DOIs, bibtex, then library titles followed by ACL titles; contained ranks longest spans first and skips overlaps. best prefers exact year, author count, ACL-bearing record then index. lift maps ACL match into library by anthology id; duplicates keep first method. near records exactly-one-failed checks and excludes final hits.
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
Unicode token folding retains original UTF-8 byte boundaries. Index stores first id/DOI and full/article-skipped title variants. Matcher gathers URL and ACL DOI ids, other DOIs, bibtex, then library titles followed by ACL titles; contained ranks longest spans first and skips overlaps. best prefers exact year, author count, ACL-bearing record then index. lift maps ACL match into library by anthology id; duplicates keep first method. near records exactly-one-failed checks and excludes final hits.
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-refs
Subject: source SHA-256 478c68b66f1dd86a691861bb26d634ffce9dd47aef7572e437a7fa1cc6e95db5; 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
Missing author/year/boundary cannot become free-title hit unless allowed fuzzy year/boundary alternatives apply. Short titles (<3 words or <20 chars) never enter trigram search. Explicit identifiers can still match without those title constraints.
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
Hit preimages include explicit id strings and normalized title/author/year variants; normalization is many-to-one, and best tie-break loses candidate identities except selected alts. Not a unique paper correctness proof.
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.
span_priority
Library contained consumes spans before ACL regardless of global longest cross-index title; length priority is local per index pass.
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.
year_tolerance
Free text needs >=6 alphabetic title words for ±1 year; bibtex needs >=4; exact year always wins candidate scoring.
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.
byte_coordinates
toks offsets are original bytes; acl_ids finds offsets on lowercased string then indexes original, so length-changing Unicode before URL is an unsupported safety/fidelity domain.
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.
method_identity
Duplicate (src,idx) hits keep first How; a later title match cannot downgrade an earlier URL hit, but still consumes its span.
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/refs.rs at SHA-256 478c68b66f1dd86a691861bb26d634ffce9dd47aef7572e437a7fa1cc6e95db5. Selected actual-source tests in treebanks:
refs::tests::normalization_and_idsrefs::tests::title_matching_positiverefs::tests::title_matching_negative_controlsrefs::tests::ids_and_bibtexrefs::year_tests::fuzzy_year_article_and_detexrefs::line_tests::title_line_then_authors_line
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
Index O(title bytes plus entries), expected hash lookups. For T item tokens and C title candidates of length L, contained O(T+C*(L+T+authors)) plus span sorting and overlap scans O(S²); raw token/string costs additional. Library scans bounded directory depth and reads YAML; no downloads.
Missing author/year/boundary cannot become free-title hit unless allowed fuzzy year/boundary alternatives apply. Short titles (<3 words or <20 chars) never enter trigram search. Explicit identifiers can still match without those title constraints.
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.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/treebanks/src/refs.rs.groupant/