That's a good question and I haven't figured it out, but I bet it has to do with U+30fb not being in L class:
% unicode -d -U 30fa 30fb 30fc U+30FA 'ヺ' KATAKANA LETTER VO category: Lo canonical combining classes: 0 bidirectional category: L character decomposition mapping: 30F2 3099 mirrored: N U+30FB '・' KATAKANA MIDDLE DOT category: Po canonical combining classes: 0 bidirectional category: ON mirrored: N U+30FC 'ー' KATAKANA-HIRAGANA PROLONGED SOUND MARK category: Lm canonical combining classes: 0 bidirectional category: L mirrored: N % I think the behavior might be a bug, but the character is peculiar, or at least punctuation rather than "letters". Leaving for Marcel, who is the curator of the Unicode packages these days. -rob On Tue, Dec 10, 2019 at 7:22 PM <zhuoyik...@gmail.com> wrote: > hi : > there is a question about unicode katakana table.... > thanks all for help > > > https://en.wikipedia.org/wiki/Katakana_(Unicode_block) > > [image: 1211575965733_.pic.jpg]why golang split the katakana range into > multirange , and don't include 0x30fb --0x30fc, it should include it.. > > > > > > > > [image: 1221575965876_.pic.jpg]in golang src/unicode/tables > var _Katakana = &RangeTable{ R16: []Range16{ {0x30a1, 0x30fa, 1}, {0x30fd, > 0x30ff, 1}, {0x31f0, 0x31ff, 1}, {0x32d0, 0x32fe, 1}, {0x3300, 0x3357, 1}, > {0xff66, > 0xff6f, 1}, {0xff71, 0xff9d, 1}, }, R32: []Range32{ {0x1b000, 0x1b000, 1}, > },} > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/f524ca6d-c98e-43d5-a594-41c3c9481e18%40googlegroups.com > <https://groups.google.com/d/msgid/golang-nuts/f524ca6d-c98e-43d5-a594-41c3c9481e18%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAOXNBZTmkQhgcxFQ2dEWevpdTbgtV4nksMORbeX1CXg9MistDQ%40mail.gmail.com.
