Of course I'd say this as a lisper, but as long as the return values of everything is intuitive and well defined, I don't see an inherent problem with such form

Of course I'd say this as a lisper, but as long as the return values of everything is intuitive and well defined, I don't see an inherent problem with such form. Indeed, if anything, if the intention is to communicate that the Boolean value is the result of some process that runs through a while loop, then explicitly saying that in the assignment seems to me to almost be the best way to do it :\ ymmv. Now deeply nested while/assignment/ifs, that's a bad-pattern, but I'm not inherently convinced that's an expression/statement problem.