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Make the Kirat Rai ligature states ligature-transparent #95

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Make the Kirat Rai ligature states ligature-transparent #95

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4 changes: 2 additions & 2 deletions scripts/unicode.py
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Original file line number Diff line number Diff line change
Expand Up @@ -307,9 +307,9 @@ class WidthState(enum.IntEnum):
"(\\uE0061..=\\uE007A){6} \\uE007F \\u200D `Emoji_Presentation`"

# Kirat Rai
KIRAT_RAI_VOWEL_SIGN_E = 0b0000_0000_0010_0000
KIRAT_RAI_VOWEL_SIGN_E = 0b0011_1100_0010_0000
"\\u16D67 (\\u16D67 \\u16D67)+ and canonical equivalents"
KIRAT_RAI_VOWEL_SIGN_AI = 0b0000_0000_0010_0001
KIRAT_RAI_VOWEL_SIGN_AI = 0b0011_1100_0010_0001
"(\\u16D68)+ and canonical equivalents"

# VARIATION SELECTORS
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4 changes: 2 additions & 2 deletions src/gen/width_info.rs
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Expand Up @@ -36,8 +36,8 @@ impl WidthInfo {
pub(crate) const TAG_A4_END_ZWJ_EMOJI_PRESENTATION: Self = Self(0b0000000000011100);
pub(crate) const TAG_A5_END_ZWJ_EMOJI_PRESENTATION: Self = Self(0b0000000000011101);
pub(crate) const TAG_A6_END_ZWJ_EMOJI_PRESENTATION: Self = Self(0b0000000000011110);
pub(crate) const KIRAT_RAI_VOWEL_SIGN_E: Self = Self(0b0000000000100000);
pub(crate) const KIRAT_RAI_VOWEL_SIGN_AI: Self = Self(0b0000000000100001);
pub(crate) const KIRAT_RAI_VOWEL_SIGN_E: Self = Self(0b0011110000100000);
pub(crate) const KIRAT_RAI_VOWEL_SIGN_AI: Self = Self(0b0011110000100001);
pub(crate) const VARIATION_SELECTOR_1_2_OR_3: Self = Self(0b0000001000000000);
pub(crate) const VARIATION_SELECTOR_15: Self = Self(0b0100000000000000);
pub(crate) const VARIATION_SELECTOR_16: Self = Self(0b1000000000000000);
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14 changes: 14 additions & 0 deletions tests/tests.rs
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Expand Up @@ -656,6 +656,20 @@ fn test_vs1_vs2_vs3() {
}
}

#[test]
fn test_kirat_rai() {
// Per the crate docs, inserting default-ignorable combining marks or ZWJ
// anywhere in a script ligature must not change its width.
assert_width!("\u{16D68}", 1, 1);
assert_width!("\u{16D63}\u{16D67}", 1, 1);
assert_width!("\u{16D63}\u{200D}\u{16D67}", 1, 1);
assert_width!("\u{16D63}\u{034F}\u{16D67}", 1, 1);
assert_width!("\u{16D63}\u{16D68}", 1, 1);
assert_width!("\u{16D63}\u{200D}\u{16D68}", 1, 1);
assert_width!("\u{16D69}\u{16D67}", 1, 1);
assert_width!("\u{16D69}\u{200D}\u{16D67}", 1, 1);
}

#[test]
fn test_char_iter() {
assert_eq!(char_iter_width(['a', 'b', '🔬'].into_iter()), 4)
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