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This syntax is not supported by the tools I use. If we're going to add to the language, why not just add a true intersection operator? My question was meant to
by _acme 10y ago
This syntax is not supported by the tools I use. If we're going to add to the language, why not just add a true intersection operator? My question was meant to be more theoretical - what was the rationale behind incorporating union into the basic syntax, but not intersection, when regular expressions were first adapted to text processing?
- _acme 10y agoI do have awk available, which allows one to combine regular expressions using logical operators, but I'm interested in the historical and theoretical aspects of my inquiry, if any.