Reintroduce the reverse suffix literal optimization.#228
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BurntSushi merged 1 commit intomasterfrom May 7, 2016
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It's too good to pass up. This time, we avoid quadratic behavior with a simple work-around: we limit the amount of reverse searching we do after having found a literal match. If the reverse search ends at the beginning of its search text (whether a match or not), then we stop the reverse suffix optimization and fall back to the standard forward search. This reverts commit 50d991e. # Conflicts: # src/exec.rs
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It's too good to pass up. This time, we avoid quadratic behavior
with a simple work-around: we limit the amount of reverse searching
we do after having found a literal match. If the reverse search ends
at the beginning of its search text (whether a match or not), then we
stop the reverse suffix optimization and fall back to the standard forward
search.
A benchmark was added that will experience serious slow downs if
quadratic behavior happens.
This reverts commit 50d991e.