[derek73]

Closes #1131

A word with interior periods read as a suffix where ANY of its chunks was suffix vocabulary (v1's rule for Lt.Gov.), while brackets (rules/S1) and the end of a name without a final period (rules/H5) read it more strictly, so the slots disagreed. Every chunk now counts, the test the slash and hyphen joins already ask (#1103, #1138).

Input	master, 1.4.0 through 2.8.2	This PR
John Smith (Msc.Ed)	nickname	suffix Msc.Ed
John Smith (PhD, Msc.Ed)	nickname	suffix
John (Msc.Ed) Smith	nickname	nickname, now reported, as John (MA/PhD) Smith is
John Smith Lt.Gov	family Lt.Gov	title Lt.Gov
John Smith Bob.PhD	suffix	suffix, now reported suffix-or-name
Whinnett, BM.BS	suffix (2.6.0 through 2.8.2; given through 2.5.0)	given, reported
John Smith Msc.Ed, JD.CPA, Lt.Gov., J.씨, MD.&PhD		unchanged
John Smith Dr.PhD, St.John Smith, Dr.philol. …, Lt.Gen. …		unchanged

The rule

• rules/S3 (credentials written in joined chunks): a word with interior periods reads as a suffix when every chunk counts as a suffix as written, a member of the ambiguous class another chunk settles included (_vocab.period_joined_credential, sharing the joined reading's _member and _settles). Punctuation beside an interior period is no part of a chunk (MD.&PhD); at the word's outer edges only its periods, a glued semicolon and an ampersand are, so Msc.Ed! reads as the name word MD! and MD/PhD] already are. A word the test refuses is read by position, as the shape is.
• rules/S1 (a bracketed credential is not a nickname): the same test sets a period-joined word apart, its initials test asks the word's chunks as it asks a slash's (Justin (JP.MD) Stearns stays the nickname), and one holding a member is a member, settled by rules/S13's position.
• rules/H5 (the trailing title run): a word every chunk of which is a title chains without a final period. The title verdict in front of a name stays any-chunk: asking every chunk there read Dr.philol., Lt.Gen., Dipl.-Kfm., st.repr. and Dut.ra Prof.ra as given names (declined, decisions/S3).
• History in decisions/S3's and decisions/H5's 2026-11-07 Should a word that is a title or credential only by one of its chunks count as one in brackets and at the end of a name: (Msc.Ed), John Smith Lt.Gov? #1131 entries.

Vocabulary

• listed: mch (Master of Surgery, mask MCh) and bscmed. 92 ctgov-officials names written with MCh move, those that read reversed with MCh the given name (Abdul R Bhat, MCh) now reading it as the suffix.
• refused, each with its reason on the word: med (its mask would write Dr. MEd. into the German Dr. med.), chb and bch (listed alone they stop rules/S12's MB ChB merging).

Accepted

• A dotted degree whose chunks are not listed (M.B., Ch.B., M.Ed., B.Ch) loses the chunk reading. Where it was already the suffix only the forced case view moves (M.Ed. → M.ED. under capitalized(force=True)), and after a family comma alone it is the given name, reported.
• A credential glued to a digit by a period (John Smith MD.3) is a name word, silently, as John Smith 1.4 is.

Measured (2026-11-07, against f86963a, snapshot.py --local <source> --base <checkout>)

• snapshot.jsonl: only the new rule examples and John Smith Lt.Gov.
• ctgov-officials: 264 of 536,981: 162 in the forced case view alone, 92 the MCh names, the rest the rule's own moves (Reva PROF.DR → title, e-mail addresses glued into a name no longer the suffix, Sutriyo M.Si, Dr → family, reported).
• nepal-candidates: 5, the Nepali surname जी.सी (G.C.) no longer a suffix in three.
• fec-individuals: 9; tse-donors: 1.
• Unchanged: govuk-people, ukec-individuals, dof-signatures, jrc-names; psc-individuals, orcid-researchers and cz-candidates agreement; CLDR, GND and the Wikidata views.

Review

Three rounds: a code review and a design-docs review of the first commit, then a review of the fix commit, which found that the first fix's edge strip read Msc.Ed.] and Msc.Ed] differently and Justin (J.씨) Stearns as the suffix; both fixed in the third commit. Suite passes on 3.11 and 3.15, serial tests included.

🤖 Generated with Claude Code