Partially test consistency of grapheme cluster segmentation with canonical equivalence, and fix it for LGCs #645
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eggrobin
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Co-authored-by: Markus Scherer <[email protected]>
…odetools into normalization-woes
eggrobin
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Jan 23, 2024
| E0020..E007F ; Other_Grapheme_Extend # Cf [96] TAG SPACE..CANCEL TAG | ||
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| # Total code points: 127 | ||
| # Total code points: 152 |
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Note: 152-127=25; UTC decided on changing 18 existing characters, and there are 7 more Tulu-Tigalari characters new in 16.0, as noted in the PAG report.
…ent-grapheme-clusters
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UTC-178-A24 In PropList.txt, assign the Other_Grapheme_Extend property to eighteen pre-existing characters (U+1715, U+1734, U+1B44, U+1BAA, U+1BF2, U+1BF3, U+A953, U+A9C0, U+111C0, U+11235, U+1134D, U+116B6, U+1193D, U+11F41, U+16FF0, U+16FF1, U+1D166, U+1D16D), as well as to the Tulu-Tigalari vowel signs and looped viramas, and update derived properties. For Unicode Version 16.0. See L2/24-009 item 6.5.
Towards #522.
This would have caught the issue reported by Charlotte Buff in https://www.unicode.org/L2/L2023/23159-pubrev.html#ID20230502072316, as well as unicode-org/properties#229.
In fact, it caught the corresponding issue for Tulu-Tigalari (which only affects legacy grapheme clusters). See the failures in 85eca4e.