`GetMyanmarCategory`

Signature

function GetMyanmarCategory(CP: Cardinal): Integer;

Purpose

Pure Unicode-codepoint → Myanmar syllabic-category lookup. No font state required. Returns one of 11 category codes (same numbering as GetDevanagariCategory et al.). Covers the Myanmar core block (U+1000–U+109F) and Extended-A (U+AA60–U+AA7F).

Return values

Code	Category	Example codepoints
0	Other	Unassigned / non-syllable; Myanmar punctuation (`U+104A`–`U+104F`); symbols (`U+109E`–`U+109F`); Extended-A symbols (`U+AA77`–`U+AA79`)
1	Consonant	Core consonants (`U+1000`–`U+1020`), GREAT SA (`U+103F`), medials Y/R/W/H (`U+103B`–`U+103E`; treated as consonants here, sorted by reorder pre-pass), Extended Sanskrit (`U+1050`–`U+1055`), Mon (`U+105A`–`U+1066`), Sgaw Karen / Western Pwo (`U+1067`–`U+1070`), Shan (`U+1075`–`U+1081`), MEDIAL MON LA (`U+1082`), Rumai Palaung FA (`U+108E`), Extended-A consonants (`U+AA60`–`U+AA76`, `U+AA7A`, `U+AA7E`–`U+AA7F`)
2	Independent vowel	U+1021–U+102A (A..AW)
3	Matra (dependent vowel sign)	U+102B–U+1035, U+1056–U+1059, U+1071–U+1074, U+1083–U+1086, U+109A–U+109D (Burmese / Mon / Shan / Sgaw Karen / Pwo vowel signs at various positions)
4	Virama (incl. ASAT)	U+1039 VIRAMA (traditional halant), U+103A ASAT (consonant killer, also used as middle codepoint of the Kinzi 3-CP prefix)
6	Bindu	U+1036 ANUSVARA
7	Visarga	U+1038
9	Digit	U+1040–U+1049 (Burmese), U+1090–U+1099 (Shan)
10	ZWJ	U+200D
11	ZWNJ	U+200C
12	Above-/below-base sign	U+1037 DOT BELOW (routed to below-base by reorder), tone marks (`U+1087`–`U+108D`, `U+108F`; routed to above-base), Pa'o Karen tone marks (`U+AA7B`–`U+AA7D`)

Matra positional categories

MatraPos	Position	Myanmar codepoints
1	Pre-base	U+1031 E (the only pre-base matra in Myanmar; rotated to syllable start per R10)
2	Post-base	U+102B TALL AA, U+102C AA, U+1056–U+1057 Vocalic R/RR matras, U+1083–U+1084 Shan vowel signs, U+109A–U+109B Shan tone vowels
3	Above-base	U+102D I, U+102E II, U+1032 AI, U+1033–U+1035 Vocalic R/L variants, U+1071–U+1074 vowel signs, U+1085–U+1086 Shan vowel signs, U+109C Shan tone vowel
4	Below-base	U+102F U, U+1030 UU, U+1058–U+1059 Vocalic L/LL matras, U+109D Shan tone vowel

Myanmar has no split-matra codepoints (no MatraPos = 5 entries).

Notable Myanmar-specific assignments

Kinzi prefix is not a category: the exact 3-CP sequence U+1004 + U+103A + U+1039 at syllable start is recognised by ApplyMyanmarReorder's FSM, not by category codes. The individual codepoints retain their normal categories (NGA=1, ASAT=4, VIRAMA=4).
ASAT and VIRAMA both category 4: the FSM does not need to distinguish them since both signal consonant stacking. ASAT used standalone outside the Kinzi prefix stays in BaseBuf at its source position.
Medials Y/R/W/H all category 1: U+103B–U+103E are categorised as Consonant, but the reorder pre-pass recognises them by codepoint and routes each to a dedicated slot, emitting them in fixed Y → R → W → H order per R9.
U+1082 MEDIAL MON LA is not in the Y/R/W/H medial set. It is categorised as plain consonant (1) and stays in BaseBuf in source order.
DOT BELOW vs other tones (all category 12): U+1037 DOT BELOW is the only category-12 codepoint that routes to below-base; all other tone marks (Burmese, Shan, Rumai Palaung, Pa'o Karen) route to above-base.
Pre-base vowel count: Myanmar has only one pre-base matra (U+1031 E), reordered per R10. The complexity is in Kinzi (3 CPs), medial sorting (4 slots), and ASAT / VIRAMA handling rather than in vowel routing.
Extended-B (U+A9E0–U+A9FF) and Extended-C (U+116D0–U+116FF, supplementary plane): not covered in this phase. Future Phase 8g may add these.

Version history

v2.120.10 — Introduced in Phase 8f.10.

GetMyanmarCategory