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On May 4, 2013, at 11:22 PM, Rena <> wrote:

> Maybe the maximum length could be specified
> in the format string, e.g. '*l:255'?

What about just spell it out to start with:

• number: reads a string with up to this number of bytes, returning nil on end of file. If number is zero, it reads nothing and returns an empty string, or nil on end of file.