std: add pattern matching to OsStr - #161763

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Commits on Oct 2, 2026

core: convert Pattern<'a> into Pattern<H: Haystack>
pacak
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27e7424
core: move Pattern et al to core::pattern module (doesn't compile)
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72f4a17
core: post move Pattern et al to core::pattern module cleanup
pacak
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2db5ecc
core: introduce internal core::pattern::{Split,SplitN} types
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56efb44
Revert "Add ByteNeedle search in StrSearcherImpl"
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2967dc2
core: add core::pattern::EmptyNeedleSearcher internal type
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33e17a7
core: add try_next_code_point{,_reverse} internal functions
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a4bfe08
core: add internal core::str_bytes module handling string-like slices
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736b2f1
coretests: Add a few tests for backward multibyte predicate
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c30ca3a
core: add concept of Flavour to core::str_bytes
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2ce7a93
core: add memchr-based single-ascii byte search to str_bytes
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6f8ccbc
core/std: inline small functions
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181916f
core::str_bytes: use unsafe for indexing
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b2f2d2d
core: skip emitting rejects if result doesn't cary it
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e94eb89
std: add pattern matching to OsStr
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721a639