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Build & evaluate pure python regex filter #235
Description
Activity
See prior art at https://github.com/ua-parser/uap-rust/tree/main/regex-filtered
Do take note of ua-parser/uap-rust@4f1c7df and ua-parser/uap-rust@f500c57
An other core concern will be the implementation of aho-corasick in Python, uap-rust was able to use https://github.com/BurntSushi/aho-corasick but a third-party dependency would be a bigger concern here.
FilteredRE2 (and regex-filtered) show amazing results on ua-parser work load, however if for some reason they're not available (or they're missed) users are stuck with the horror show that is sequential regex matching.
regex filtering should be reimplemented for the stdlib's
remodule in order to see how it behaves and if the gain is as significant as it is for the native regexes. The big question will be how efficient a pure python aho-corasick is (possibly via ahocorapy?)