My take on Algol->Pascal has always been rather more that Pascal is essentially the easy to implement parts of Algol68 (speaking as someone who once wrote an Al

My take on Algol->Pascal has always been rather more that Pascal is essentially the easy to implement parts of Algol68 (speaking as someone who once wrote an Algol68 compiler for my thesis). Many of those harder parts of Algol68 (unions with tags, pointers to stuff like function calls, a full type system etc etc) are all things we consider normal parts of modern languages