This is why having your language support nested procedures is so helpful. Having it completely separate when it's only ever going to be used from one place isn

This is why having your language support nested procedures is so helpful. Having it completely separate when it's only ever going to be used from one place isn't exactly the clearest and means extra variable passing. Pulling it into a nested procedure, though, makes it very clear what's going on and much easier to follow. My general rule is no flow control other than bailout in anything more than a dozen lines or so.