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== Pratt parsing ==
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Another precedence parser known as Pratt parsing was first described by [[Vaughan Pratt]] in the 1973 paper "Top down operator precedence",<ref>Pratt, Vaughan. "[https://web.archive.org/web/20151223215421/http://hall.org.ua/halls/wizzard/pdf/Vaughan.Pratt.TDOP.pdf Top down operator precedence]." ''Proceedings of the 1st Annual ACM SIGACT-SIGPLAN Symposium on Principles of Programming Languages'' (1973).</ref> based on [[Recursive descent parser|recursive descent]]. Though it predates precedence climbing, it can be viewed as a generalization of precedence climbing.<ref>{{cite web |last1=Norvell |first1=Theodore |title=Parsing Expressions by Recursive Descent |url=http://www.engr.mun.ca/~theo/Misc/pratt_parsing.htm |website=www.engr.mun.ca |quote=The purpose of this post is to [... start] with precedence climbing and refactoring it to use the command pattern until we arrive at a Pratt parser. [This is the author who coined the term "precedence climbing".]}}</ref>
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