If start out in the middle with BNF grammar, can get drag/drop diagram/grammar highlighter for use in codemirror[0] or mess around with BNF linting [1][2][3][4]

If start out in the middle with BNF grammar, can get drag/drop diagram/grammar highlighter for use in codemirror[0] or mess around with BNF linting [1][2][3][4]. [0] https://bnfc.digitalgrammars.com/ https://bnfc.digitalgrammars.com/ [1] : https://dl.acm.org/doi/10.1145/3278186.3278193 https://dl.acm.org/doi/10.1145/3278186.3278193 [2] : https://www.researchgate.net/figure/Overview-of-Grammarinators-approach-to-generate-test-cases_fig1_328510752 https://www.researchgate.net/figure/Overview-of-Grammarinato... [3] bullwinkle : https://github.com/sylvainhalle/Bullwinkle https://github.com/sylvainhalle/Bullwinkle [4] : https://news.ycombinator.com/item?id=30822544 https://news.ycombinator.com/item?id=30822544