Elamur Groupantswikt-page-text-command-xml-page
The groupant beside tools/wikt-page/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
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-and-cost |
| descriptant | present | descriptant |
| invariant | partial | invariant-and-cost |
| tests | executed 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 |
|---|---|---|---|
wikt-page-text-command-xml-page-behavior_complement | behavior_complement | partial source derived model | behavior_complement |
wikt-page-text-command-xml-page-reverse_reconstruction | reverse_reconstruction | partial source derived model | reverse_reconstruction |
wikt-page-text-command-xml-page-page_reset | page_reset | partial source derived model | page_reset |
wikt-page-text-command-xml-page-id_first_write | id_first_write | partial source derived model | id_first_write |
wikt-page-text-command-xml-page-empty_text_return | empty_text_return | partial source derived model | empty_text_return |
wikt-page-text-command-xml-page-early_return_scope | early_return_scope | partial source derived model | early_return_scope |
Model text
descriptant
wikt-page-text-command-xml-page
Epoch 2026-10-31
Full source read preceded changes. Prospective model predicted branch/order, resource and information-loss behavior. Tests exercise actual helpers on bounded synthetic inputs; command workflows remain unexecuted. Production source prefix is preserved; only inline tests added.
Event reader resets state on page start, marks revision start, reads title/ns/first ids, returns matching text or matching empty text. EOF returns None; XML/read_text/entity errors propagate.
Executable percentage approximation is unsupported: categorical parsing/effects have no useful certified metric here. Partial syntax excludes macro expansion and name resolution.
approximant
Forward relation
Event reader resets state on page start, marks revision start, reads title/ns/first ids, returns matching text or matching empty text. EOF returns None; XML/read_text/entity errors propagate.
Domain
UTF-8 rootless XML fragments, quick_xml configured check_end_names=false; tests exercise entities/ids/empty element only.
models
Typed source models
All models are partial source-derived relations at this manifest snapshot. Scope is one call/trace under the stated domain; no universal semantic proof.
behavior_complement
Later contributor id cannot overwrite already filled rev; wrong title text cannot produce Some; EOF without matching text returns None.
Domain: UTF-8 rootless XML fragments, quick_xml configured check_end_names=false; tests exercise entities/ids/empty element only. Observation: Page state belongs to latest page start; title equality exact after entity decoding. Returning text does not validate remaining XML. Revision flag does not reset at revision end. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.
reverse_reconstruction
Returned Page constrains decoded selected fields only; compatible XML can differ in escapes, order of ignored metadata and content after return.
Domain: UTF-8 rootless XML fragments, quick_xml configured check_end_names=false; tests exercise entities/ids/empty element only. Observation: Page state belongs to latest page start; title equality exact after entity decoding. Returning text does not validate remaining XML. Revision flag does not reset at revision end. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.
page_reset
Start page clears title/in_rev and every Page field, preventing prior-page id/text carryover.
Domain: UTF-8 rootless XML fragments, quick_xml configured check_end_names=false; tests exercise entities/ids/empty element only. Observation: Page state belongs to latest page start; title equality exact after entity decoding. Returning text does not validate remaining XML. Revision flag does not reset at revision end. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.
id_first_write
id writes only empty destination, chosen by in_rev. Empty id content leaves slot empty for later id.
Domain: UTF-8 rootless XML fragments, quick_xml configured check_end_names=false; tests exercise entities/ids/empty element only. Observation: Page state belongs to latest page start; title equality exact after entity decoding. Returning text does not validate remaining XML. Revision flag does not reset at revision end. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.
empty_text_return
Empty text event with matching title returns current Page with empty text; nonmatching empty events ignored.
Domain: UTF-8 rootless XML fragments, quick_xml configured check_end_names=false; tests exercise entities/ids/empty element only. Observation: Page state belongs to latest page start; title equality exact after entity decoding. Returning text does not validate remaining XML. Revision flag does not reset at revision end. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.
early_return_scope
Return on matching text occurs before closing page/revision; malformed trailing chunk may remain unobserved.
Domain: UTF-8 rootless XML fragments, quick_xml configured check_end_names=false; tests exercise entities/ids/empty element only. Observation: Page state belongs to latest page start; title equality exact after entity decoding. Returning text does not validate remaining XML. Revision flag does not reset at revision end. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.
tests
Evidence
Selected exact tests: ["wave33::xml_ids_text_and_empty_page"].
Each runs twice in debug and twice in release with normalized named outcomes compared. Compiled production-boundary mutants are recorded in the external wave33 text receipts with original/restored hashes and positive reruns. Existing negative assertions are separate from compiled mutants. No CLI, download, teacher, corpus or model execution. For this fragment, source-derived paths not reached by these tests remain unverified.
invariant-and-cost
Invariant and cost
Invariant
Page state belongs to latest page start; title equality exact after entity decoding. Returning text does not validate remaining XML. Revision flag does not reset at revision end.
Cost
O(chunk bytes until matching text), output and parser string allocations proportional to consumed fields; entire chunk already materialized.
Arithmetic and allocation premises are conditional. No timing or percentage surrogate claimed.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/wikt-page/src/main.rs.groupant/xml-page.groupant/