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def brk

bend-kit-unicode@0.1.0.0 · unicode.bend:177

import bend-kit-unicode@0.1.0.0/unicode.bend as Unicode
import Base

177# UAX #29 GB3-GB13. ri: the regional indicators before q are odd in number.
178# ep: 1 after ExtPict Extend*, 2 after ExtPict Extend* ZWJ.
179# incb: 1 after an InCB consonant and extenders, 2 once a linker follows it.
180def brk(+p: U32, +q: U32, +ri: Bool, +ep: U32, +incb: U32) -> Bool:
181  +gp = gcb(p)
182  +gq = gcb(q)
183  +ctl = (U32.is_le(1, gp) && U32.is_le(gp, 3)) || (U32.is_le(1, gq) && U32.is_le(gq, 3))
184  +glue = hangul.join(gp, gq) || eq(gq, 4) || eq(gq, 5) || eq(gq, 8) || eq(gp, 7)
185  +conj = eq(incb, 2) && eq((q >> 5n : U32), 1)
186  +emoji = eq(ep, 2) && U32.is_ne((q .&. 16 : U32), 0)
187  +flag = eq(gp, 6) && eq(gq, 6) && ri
188  Bool.not((eq(gp, 1) && eq(gq, 2)) || (Bool.not(ctl) && (glue || conj || emoji || flag)))

Uses (12)

Used by (1)