Make NFKD and UTS 46 data store only the difference form NFD #1984
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…without ignoring default ignorables Default ignorables are not ignored, because doing so would violate the fundamental assumption of the normalizes that every input character produces non-empty output. The expectation is that real NFKC_CaseFold will be implemented by first filtering out default ignorables and then plugging the NFKD_CaseFold data into the upcoming `ComposingNormalizer` code that will turn NFD into NFC and NFKD into NFKC.
Saves 7332 bytes in data size.
…and allow dynamic further shortening in tailorings This makes the action of turning a value read from the table into a `CollationElement` super-simple (and branchless).
Makes testdata.postcard 25.8 KB smaller.
hsivonen
added
C-collator
hsivonen
requested review from
a team,
sffc,
robertbastian and
Manishearth
as code owners
Codecov Report
@@ Coverage Diff @@
## main #1984 +/- ##
==========================================
- Coverage 78.47% 74.84% -3.64%
==========================================
Files 375 474 +99
Lines 27643 29089 +1446
==========================================
+ Hits 21694 21772 +78
- Misses 5949 7317 +1368
Continue to review full report at Codecov.
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Makes the postcard form of the data 25.8 KB smaller. Draft only because changesets continue on top of #1978.