On 10 nov 2006, at 00.29, Magnus Therning wrote:
On Thu, Nov 09, 2006 at 20:43:36 +0100, Björn Bringert wrote:
Dougal Stanton wrote:
Quoth Magnus Therning, nevermore,
I've been staring my eyes out trying to find a function that
converts a
string into a ClockTime or CalendarTime. Basically something
like C's
strptime(3). I can't seem to find anything like it in System.Time,
there are function that convert _to_ a string, but nothing that
converts
_from_ a string it seems. Where should I look?
The MissingH.Time.ParseDate [1] module might be what you want.
There's
also one from Bjorn Bringert [2]. I haven't used either though, so I
can't recommend anything between them.
Cheers,
D.
[1]: <http://quux.org:70/devel/missingh/html/MissingH-Time-
ParseDate.html>
[2]: <http://www.cs.chalmers.se/~bringert/darcs/parsedate/>
Those two are the same code. I have a preliminary new version
which can also
parse most of the types from the time package (Data.Time.*)
available at:
http://www.cs.chalmers.se/~bringert/darcs/parsedate-2/
I noticed one thing when playing around with
ParseDate.parseCalendarTime
in ghci:
parseCalendarTime System.Locale.defaultTimeLocale "%Y" "2006"
Just (CalendarTime {ctYear = 2006, ctMonth = January, ctDay = 1,
ctHour = 0, ctMin = 0, ctSec = 0, ctPicosec = 0, ctWDay = Thursday,
ctYDay = 1, ctTZName = "UTC", ctTZ = 0, ctIsDST = False})
parseCalendarTime System.Locale.defaultTimeLocale "%Y%m%d" "20061109"
Nothing
parseCalendarTime System.Locale.defaultTimeLocale "%C%y%m%d"
"20061109"
Just (CalendarTime {ctYear = 2006, ctMonth = November, ctDay = 9,
ctHour = 0, ctMin = 0, ctSec = 0, ctPicosec = 0, ctWDay = Thursday,
ctYDay = 1, ctTZName = "UTC", ctTZ = 0, ctIsDST = False})
Hi Magnus,
thanks for the bug report. I have fixed this now in the version of
the library available from
http://www.cs.chalmers.se/~bringert/darcs/parsedate/
I intend to retire that version, and instead switch to the new
implementation available at
http://www.cs.chalmers.se/~bringert/darcs/parsedate-2/
This supports both CalendarTime and the new much nicer Data.Time
types. However, the implementation is still incomplete (about as
complete as the old version I think). It is missing support for week
date formats and the like, and there is no test suite or QuickCheck
properties (and thus there are surely lots of bugs).
By the way, if you want to be sure that I see your bug reports about
any of the libraries I maintain, please to cc the reports to me, or
send them to me directly.
/Björn_______________________________________________
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