Wondering how the date vs datetime distinction, and other distinctions
regarding time, play out in Factor with HTML5.
http://www.w3schools.com/html/html5_form_input_types.asp
- mrw
On 09/05/2014 12:34 PM, Jon Harper wrote:
On Fri, Sep 5, 2014 at 6:19 PM, Alex Vondrak ajvond...@gmail.com
English is not my native language but could days-since be better?
Just wanted to chime in here that `days-since` would be the perfect name
(as in `2014-08-21 days-since`). English is my native language and I
hadn't even thought of this name! :)
On Wed, Sep 3, 2014 at 1:22 AM, Georg Simon
On Thu, Sep 4, 2014 at 4:06 PM, Jon Harper jon.harpe...@gmail.com wrote:
How about:
: today ( -- timestamp ) now midnight instant gmt-offset ; inline
Or really just
: today ( -- timestamp ) gmt midnight ; inline
if I'm not mistaken. It's a short trip from `today`'s current definition:
On Fri, Sep 5, 2014 at 9:52 AM, Alex Vondrak ajvond...@gmail.com wrote:
On Thu, Sep 4, 2014 at 4:06 PM, Jon Harper jon.harpe...@gmail.com wrote:
How about:
: today ( -- timestamp ) now midnight instant gmt-offset ; inline
Or really just
: today ( -- timestamp ) gmt midnight ; inline
But then things go wrong in the rare cases when you change your
timezone.
I have learned much and now use two new words which solve my problem:
: local-ymdtimestamp ( str -- timestamp ) ! str is -MM-DD
ymdtimestamp gmt-offset-duration gmt-offset
;
: days-since ( str -- n ) ! str
On Fri, Sep 5, 2014 at 3:34 AM, Jon Harper jon.harpe...@gmail.com wrote:
On Fri, Sep 5, 2014 at 9:52 AM, Alex Vondrak ajvond...@gmail.com wrote:
On Thu, Sep 4, 2014 at 4:06 PM, Jon Harper jon.harpe...@gmail.com
wrote:
How about:
: today ( -- timestamp ) now midnight instant gmt-offset ;
I also realize now that this date vs datetime distinction was what Jon
was suggesting, whereas I thought he was talking about have one version
normalize to local time, have the other normalize to GMT (like
Date.current Date.today in Rails). I'm all for a date vs datetime
distinction---probably
On Fri, Sep 5, 2014 at 6:19 PM, Alex Vondrak ajvond...@gmail.com wrote:
I also realize now that this date vs datetime distinction was what Jon
was suggesting, whereas I thought he was talking about have one version
normalize to local time, have the other normalize to GMT (like
Date.current
today gmt 2014-08-31 ymdtimestamp time- durationdays .
today 2014-08-31 ymdtimestamp time- durationdays .
today in Germany both printed 3+11/12
Perhaps simpler would be just converting to GMT first:
today gmt 2014-08-31 ymdtimestamp time- durationdays
I think timestampymd just ignores the timezone information, and should
produce the same output (in fact I think implemented the exact same way) as
your timestampYMD.
On Thu, Sep 4, 2014 at 9:44 AM, Georg Simon georg.si...@auge.de wrote:
If I do understand the Factor code
ymdtimestamp
Hmm, I think you're effectively doing today (in local time) minus today
(in GMT), which is something sorta like this:
today dup clone 0 hours gmt-offset time- durationhours
(this should output the number of hours from GMT in your local timezone)
The time- word takes timezones into account,
Georg's problem comes from the fact that ymdtimestamp represents a date
by midnight gmt, whereas today represents it by midnight in the local
timezone.
The API should make it clear how we represent dates (ie whole days, which
are not even the same 24 hours in different time zones) with timestamp
Am Tue, 2 Sep 2014 19:09:45 -0700
schrieb Alex Vondrak ajvond...@gmail.com:
Thank you.
...
That is, if it weren't for the GMT bit, you could just say
`2014-08-31
ymdtimestamp ago durationdays`. In fact, that would make a nice
ymdword: `:
days-ago ( timestamp -- days ) ago durationdays
Perhaps simpler would be just converting to GMT first:
today gmt 2014-08-31 ymdtimestamp time- durationdays
On Wed, Sep 3, 2014 at 1:22 AM, Georg Simon georg.si...@auge.de wrote:
Am Tue, 2 Sep 2014 19:09:45 -0700
schrieb Alex Vondrak ajvond...@gmail.com:
Thank you.
...
That is, if
Oh, I see -- you want to compare a date in local time with a date in GMT
without considering the timezone difference.
Your solution seems okay, albeit a little complicated by trying to undo the
notion of timezones. Perhaps as you play with it a bit , you might have
some idea of improvements to
I don't have Factor installed on this machine, so I can't test my
suggestions. But I'll do my best.
`today` is defined as `now midnight` -
http://docs.factorcode.org/content/word-today,calendar.html
Notice that `now` uses `gmt`, then sets the offset -
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