Hi Kees,

On 2017-11-24 12:14:26, you wrote to me:

 WvV>> The most reliable way would be, to read the first line of the file
 WvV>> and try to determine the date from that, before using the file date.
 WvV>> (file dates can change)

 KvE> That is not what you want as same number is in file suffix. But
 KvE> acually there is only one case where it is needed.

I was thinking about the full date in the first line (including the year),
not just the day number!

 KvE> From one source two updates are received on Wednesday, one with the
 KvE> Wednesday daynumber and one with the Friday daynumber. If succesive
 KvE> updates are available, on Thursdays the Friday daynumber will be
 KvE> preferred when the sort is made on suffix. Sorting on c-date would
 KvE> solve this.

That depends on the c-date of the file being correct. Which doesn't have to
be the case. That's why I suggested to use the full "internal"
date in the file.


Bye, Wilfred.

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