I’ve written a few rudimentary regex-based searches engines and thought I was a badass until I encountered the need for ANDing and ORing, realizing that they ar

I’ve written a few rudimentary regex-based searches engines and thought I was a badass until I encountered the need for ANDing and ORing, realizing that they are often (at least in English) interchangeable and also opposite in meaning, depending on context. That’s when you give up and use an actual search engine.