Indeed. The very point. That REs shine for small ad hoc jobs. Grammars and parsers are from a different context altogether. To epitomise the role of REs consider a job I example that simply wants detect all lines that contain one word somewhere before the other. This is trivially simple in an RE and preciously whence their definition stems (as in I can write that on the command line for a grep or find) and the niche in which their ubiquity reigns. That small need right now for a mildly complex pattern test or field extraction.
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Indeed. The very point. That REs shine for small ad hoc jobs. Grammars and parsers are from a different context altogether. To epitomise the role of REs consider a job I example that simply wants detect all lines that contain one word somewhere before the other. This is trivially simple in an RE and preciously whence their definition stems (as in I can write that on the command line for a grep or find) and the niche in which their ubiquity reigns. That small need right now for a mildly complex pattern test or field extraction.