Include trailing 0 (always 9 digits) for easier scanning

[mattdowle]

For example, this looks like 7 nanoseconds on first glance :

> format(nanotime(cooked$rdsent[1]))
[1] "2016-09-28T15:30:00.00000007+00:00"

but you have to look closely to realize there's just 8 subsecond digits there. So it's actually 70 nanoseconds.

Current behaviour :

format(nanotime(as.integer64("1475076600000000070")))
[1] "2016-09-28T15:30:00.00000007+00:00"
format(nanotime(as.integer64("1475076600000000071")))
[1] "2016-09-28T15:30:00.000000071+00:00"

Desired behaviour :

format(nanotime(as.integer64("1475076600000000070")))
[1] "2016-09-28T15:30:00.000000070+00:00"
format(nanotime(as.integer64("1475076600000000071")))
[1] "2016-09-28T15:30:00.000000071+00:00"

[eddelbuettel]

Not me but the underlying CCTZ C++ library so ...

[eddelbuettel]

This line in the corresponding CCTZ source file is your friend. Witness:

R> library(nanotime)
R> matt <- nanotime(70)
R> format(matt)
[1] "1970-01-01T00:00:00.00000007+00:00"
R> options("nanotimeFormat"="%Y-%m-%d %H:%M:%E9S%Ez")  # force nine digits
R> format(matt)
[1] "1970-01-01 00:00:00.000000070+00:00"
R> 

[eddelbuettel]

I made the change in this branch which also fixes the printing issue. Try that.

[eddelbuettel]

Thanks again for this, I folded it into master now.