wok view flex/description.txt @ rev 22320

updated yaml and yaml-dev (0.1.4 -> 0.2.2)
author Hans-G?nter Theisgen
date Thu Nov 14 16:00:22 2019 +0100 (2019-11-14)
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1 Flex is a tool for generating scanners. A scanner, sometimes called a tokenizer,
2 is a program which recognizes lexical patterns in text.