I am just starting to try and learn more about Nim having installed it a while
ago. My idea was to go through the exercises from the (free) online book 'How
to think like a Computer Scientist with Julia' which I had worked through a
while ago - using Julia of course. For the exercises, my intention was to read
online the Nim features needed for the exercise and implement the solution in
Nim. One of the first exercises - which was done in the Julia REPL but required
coding in Nim - boiled down to taking a time of day and adding a duration in
minutes and seconds to get a new time. Specifically starting with 6:15 and
adding 38 minutes and 6 seconds. Instead of doing lots of arithmetic, I decided
to look at using the Nim std/times documentation. I actually found it a little
confusing but this was my first time looking at the documentation so it could
be just unfamiliarity on my part.
The, no doubt not very well written, code seems to run fine:
import times
let f = initTimeFormat("HH:mm:ss") var startTime = "06:52:00".parse(f) let secs
= 6 let mins = 38 var d: Duration = initDuration(seconds=secs,minutes=mins)
echo (startTime + d).format(f)
However if I change the first line to: let f = initTimeFormat("H:mm:ss") the
parse() fails but it says in the manual that for a format patern of HH: ' The
hours in two digits always. 0 is prepended if the hour is one digit.'
Can one of you gurus clear up my misunderstanding please? Perhaps you would be
king enough to suggest a better way to code it. Apologies for the verbose
question.
Many Thanks Ron
