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Postfix Calculator

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C

Postfix Calculator Using C & Flex

Flex is an aging UNIX utility that helps you write very fast parsers for almost arbitrary file formats. Formally, they implement Look-Ahead-Left-Right (as opposed to "recursive descent") parsing of non-ambiguous context-free (as opposed to "natural language") grammars. Why should you learn the Flex pattern syntax when

  • Prashant Bansal
Prashant Bansal Aug 9, 2015 • 3 min read
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