Implementations of the speculative multi-threaded parser from Chang et. al. and SIMD approaches adapted from Langdal et. al.

This is experimental code, won't really work in the general case and is unlikely to be pursued by me in the near future, though it does show promise!

Ge, Chang and Li, Yinan and Eilebrecht, Eric and Chandramouli, Badrish and Kossmann, Donald, Speculative Distributed CSV Data Parsing for Big Data Analytics, SIGMOD 2019.

Geoff Langdale, Daniel Lemire, Parsing Gigabytes of JSON per Second, VLDB Journal 28 (6), 2019.