The map is the syllable grammar: a key sequence stays pending only
while it is a prefix of some entry, so a rime the table lacked split
the syllable and a trailing tone key landed on the wrong letter (vowis
gave vơí, rooif rôì, thaays thâý), ua+tone was a valueless prefix that
committed the raw keys (cuar gave cuar, muaf muaf), uyê and ươ typed as
uwow took no coda (nguyễn, được), and ưa toned the a (cửa gave cưả).
Add âu ây êu ôi ơi eo ia ưi ưu uê ươu uây oeo uya uyu, the uyê, uwow,
uê and oe codas, and tone ưa on ư.
transvi fixes:
1. qu-/gi- onset tone placement. The u after q, and the i after g when a
vowel follows, are onset glides rather than the rime nucleus, so the
tone must skip them: qua -> quá (was qúa), gia -> giá. The onset was
previously passed straight through to the app, so transvi never saw it
and toned the glide. Keep the onset in the preedit by adding qu-/gi-
clusters to telex.map (mktelex.py onsets(), appended additively to the
curated map), and add onsetglide() so transvi skips the glide. gi- with
no following vowel keeps i as the nucleus (gì, gìn).
2. A tone key on a vowel-less preedit (e.g. "đ" from dd) now commits the
preedit and lets the tone key pass through (eat=0), matching the engine
commit-on-passthrough invariant, instead of eating it into the commit.
Verified against the running engine: qua/quan/quay/quê/quên/quyển,
gia/già/giàu/giữ/giúp/giống, gì/gìn, dd+s; unchanged mua->mùa, của, lúa;
all non-qu/gi words byte-identical to before.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
