Ali Mohammad Pur b8f03bb072 LibRegex: Make append_alternation() significantly faster ...

...by flattening the underlying bytecode chunks first.
Also avoid calling DisjointChunks::size() inside a loop.
This is a very significant improvement in performance, making the
compilation of a large regex with lots of alternatives take only ~100ms
instead of many minutes (I ran out of patience waiting for it) :^)

2021-12-21 22:10:07 +01:00

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