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the rewriting sink was just broken. when given a rewrite set that
contained a key that is also a proper infix of another key it was
possible to produce an incorrectly rewritten result if the writer
used the wrong block size. fixing this duplicates rewriteStrings,
to avoid this we'll rewrite rewriteStrings to use RewritingSource
in a new mode that'll allow rewrites we had previously forbidden.
Change-Id: I57fa0a9a994e654e11d07172b8e31d15f0b7e8c0
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size tracking can be done with a LengthSink and a tee. match tracking
was defeated by never having done any match tracking, all users would
see the same (empty) set of matches at all times. match tracking with
bytes offsets alone would not be sufficient in the general case, only
because computeHashModulo uses a single rewrite could it have worked.
Change-Id: Idb214b5222e0ea24f450f5505712a342b63d7570
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Change-Id: I5878007502fa68c2816a0f4c61f7d0e60bdde702
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The code accidentally conflated `std::string::size_type` and `long unsigned int`.
This was fine on 64bits machines where they are apparently the same in
practice, but not on 32bits. Fix that by using `std::string::size_type`
everywhere.
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Giving it the same semantics as `rewriteStrings`.
Also add some tests for it
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