Le 3 janv. 2018 �� 23:02, Andreas Brodbeck <dassi@mindclue.ch> a ��crit :

Am 03.01.18 um 14:07 schrieb Julien:

Hello,

I do not see how to do a formatted print from a duration.

I would like to be able to do something like:

String streamContents: [ :s | 90 minutes formatted: ���hh:mm��� printOn: s ]

The Duration>>#printOn: method prints the ANSI 5.8.2.16 format: [-]D:HH:MM:SS[.S]

The Duration>>#printHumanReadableOn: is not printing in the format I want.

Am I missing something or such feature does not exist actually?

Hi Julien

I did not find a ready made method for that, either. Probably because
there is no standard way to print a *Duration* as minutes and seconds,
because it is not obvious how to print it (Compared to instances of the
*Time* class).

My solution would be to implement your own printing method using the
GRPrinter from the Grease package (Installable through Catalog Browser
in Pharo 6):

*****************************

| hoursPrinter minutesPrinter printer |

"Note: you can not use 'duration minutes', since this will give you only
the partial minutes inside a day"
hoursPrinter := GRMappedPrinter
block: [ :duration | duration asMinutes // 60 ]
next: (GRNumberPrinter new).

minutesPrinter := GRMappedPrinter
block: [ :duration | duration minutes ]
next: (GRPrinter numberWithAtLeastDigits: 2).

printer := hoursPrinter, $:, minutesPrinter.

^printer print: (9876 minutes) "Will result in '164:36'"

*****************************



2. solution: Or just dead simple:

*****************************

| duration |
duration := (9876 minutes).

^(duration asMinutes // 60) asString, ':',
duration minutes asTwoCharacterString

*****************************


Cheers, Andreas

-- 
Andreas Brodbeck
www.mindclue.ch