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aiongg 2eca9b3a53 pdf: vendor hayro-postscript and skip << and >> runs without recursion (#263 )

hayro-postscript 0.1.0 is the token scanner hayro-cmap uses for the
CMap streams PDFs embed. Its object reader skipped each `<<` or `>>`
by calling itself again, so a stream holding a long run of `<` or `>`
bytes recursed once per pair and aborted the process with a stack
overflow.

Vendor the crates.io package unchanged and patch `object::read` to
skip those runs in a loop, returning the same next object as before.
Wire it in like the other Hayro crates: workspace exclude,
[patch.crates-io] entry, SOURCE.json with registry and local hashes,
the backend test script, NOTICE, ATTRIBUTION.md and the reader README.

Tests cover a million `<` and a million `>` bytes, `<< /A 1 >>` and
nested `<<<< /X >>>>` runs.

2026-10-23 23:31:35 -04:00

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 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 version = 4
 [[package]]
 name = "hayro-postscript"
 version = "0.1.0"