Excellent article, it explains pretty much the same  (but with much more mathematical detail) as the article I wrote some months ago about why parser generator tools are mostly useless [1] .<p>[1] <a href="https:&#x2F;&#x2F;buguroo.com&#x2F;why-parser-generator-tools-are-mostly-useless-in-static-analysis" rel="nofollow">https:&#x2F;&#x2F;buguroo.com&#x2F;why-parser-generator-tools-are-mostly-us...</a> .