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Elmhurst Summary §14.0 Main Heating1 normally closes at "14.1 Main
Heating2", but community-heated dwellings and "no system" certs lodge
§14.0 followed directly by "14.1 Community Heating/Heat Network" (no
second main system exists on a community-heated dwelling). Pre-slice
the extractor's `_between("14.0 Main Heating1", "14.1 Main Heating2")`
returned an empty string for these shapes — every §14.0 field
(including `Main Heating SAP Code`) came back None, then the mapper
strict-raised `UnmappedElmhurstLabel` with "§14.0 Main Heating1 has
neither PCDF boiler reference (None) nor SAP code (None)".
The fix adds a `_section_lines_first_end(start, ends)` helper that
accepts a tuple of end-marker candidates and uses whichever appears
first after `start`. `_extract_main_heating` now closes §14.0 at
either "14.1 Main Heating2" or "14.1 Community Heating" — whichever
Summary lodges.
Impact on heating-systems corpus 001431 at `sap worksheets/heating
systems examples/`:
Variant Pre-S0380.128 -> Post-S0380.128
------------------------ ------------------ -----------------
community heating 1 mapper-raise -> SAP code 301 OK
community heating 2 mapper-raise -> SAP code 302 OK
community heating 3 mapper-raise -> SAP code 304 OK
community heating 4 mapper-raise -> SAP code 302 OK
community heating 6 mapper-raise -> SAP code 302 OK
no system mapper-raise -> SAP code 699 OK
Corpus tally: **35/41 -> 41/41 cascade-OK**. With all populated
variants now executing, the cascade-vs-worksheet residual cluster is
fully visible for the first time. Notably community heating 6 surfaces
the FIRST negative ΔSAP in the corpus (-6.87 — cascade undershooting
the worksheet rather than overshooting), a distinct diagnostic shape
worth investigating next.
The fix is structural (extractor section bracketing) — no spec rule
to cite. RdSAP 10 §17 page 85 row 1.0 ("Main Heating") + §17 row
10-1a ("Community Heat Source") confirm that community-heated certs
have only one main heating system (no Main 2 block).
Extended handover suite at HEAD post-slice: **832 pass, 0 fail**
(was 831 + 1 new AAA test).
Pyright net-zero on touched files (13 → 13 — pre-existing errors
unrelated).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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| .. | ||
| handler | ||
| tests | ||
| __init__.py | ||
| db_writer.py | ||
| elmhurst_extractor.py | ||
| extractor.py | ||
| local_runner.py | ||
| parser.py | ||
| pdf.py | ||