Iran’s noisy $50,000 delta-winged Shahed 136 drones have long been an unwanted sight over the skies of Ukraine.
around a year ago, we built a regex engine in F# that not only outperformed the ones in dotnet, but went above and beyond competing with every other industrial regex engine on a large set of industry-standard benchmarks. additionally, it supports the full set of boolean operators (union, intersection, complement) and even a form of context-aware lookarounds, which no other engine has while preserving O(n) search-time complexity. the paper was published at POPL 2025, and i figured it’s time to open source the engine and share the story behind it. consider it a much more casual and chatty version of the paper, with more focus on engineering aspects that went into it.
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Mar 3, 2026 1:36 PM
There were 78 minutes on the clock when the travelling support got wind of Nottingham Forest’s equaliser at Manchester City. How they belted out their anthems at that point – about previous title-winning glories – and when it was all over, there was plenty more from them.
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