Re^3: Unpack or substr to create CSV?

[AnomalousMonk]

After posting the above, I realized that a regex approach might give you data validation, if this was of any concern, almost for free, so I think now that I might incline in this direction. But again, there are too many unstated conditions and requirements to allow more than a hand-waving consideration of alternatives, although this may be valuable to johnmck.

[Laurent_R]

Yes, ++. If validation comes for free (or almost) and is useful, then a regex is very likely to be a much better solution. Neither substr nor unpack will offer that.