Pratt Parsers: Expression Parsing Made Easy ↩ ↪ March 19, 2011 code java js language magpie parsing Every now and then, I stumble onto some algorithm or idea that’s so clever and such a perfect solution to a problem that I feel like I got smarter or gained a new superpower just by learning it. Heaps were one, just about the only thing I got out of my truncated CS education. I recently stumbled onto another: Pratt or “top-down operator precedence” parsers. When you’re writing a parser, recursive ...