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<b_jonas> learn ayacc is ais523\'s yacc parser generator implementation, get it from (darcs clone http://nethack4.org/projects/ayacc) or a snapshot from "http://nethack4.org/pastebin/ayacc-2020-04.tar.gz".
author HackEso <hackeso@esolangs.org>
date Wed, 08 Apr 2020 20:27:14 +0000
parents 1a4b688a59ae
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select is a very versatile construct: it waits for events, retrieves data from tables, creates a list from elements of an input list that satisfy a condition, a dropdown list element, an event for when selection changes, branches between multiple arms, conditional between two expressions, prints a text-based menu prompt in a loop, and more.