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| author |  Ryan Liptak | 2024-06-27 02:33:06 -0700 |
|---|---|---|
| committer | Ryan Liptak | 2024-06-27 02:33:51 -0700 |
| commit | bd7c0cf2998b626879e147e4cec2b30f71015631 (patch) | |
| tree | 9c6a3a96ebd31d960fd4e5312f11ab0fb5470a74 /codegen/upper.zig | |
| parent | Implements new case fold data encoding by @sqeek502 #8 (diff) | |
| download | zg-bd7c0cf2998b626879e147e4cec2b30f71015631.tar.gz zg-bd7c0cf2998b626879e147e4cec2b30f71015631.tar.xz zg-bd7c0cf2998b626879e147e4cec2b30f71015631.zip | |
FoldData: Minimize Changes_When_Casefolded data
Only a few codepoints have a mapping in CaseFolding.txt but do not have the Changes_When_Casefolded property set. So, FoldData can just store a list of those particular codepoints and then re-use the encoded CaseFolding.txt data alongside it in order to implement changesWhenCaseFolded.
This reduces the size of fold.bin.z from 4,387 bytes (4.28KiB) to 1,165 bytes (1.13KiB).
This also seemingly introduced a very slight performance regression in zg_caseless.
Before:
zg CaseFold.compatCaselessMatch: result: 626, took: 258ns
zg CaseFold.canonCaselessMatch: result: 626, took: 129ns
After:
zg CaseFold.compatCaselessMatch: result: 626, took: 263ns
zg CaseFold.canonCaselessMatch: result: 626, took: 131ns
Diffstat (limited to 'codegen/upper.zig')
0 files changed, 0 insertions, 0 deletions