[erlang-questions] parsing dates

[Joel Reymont]

Is there a function somewhere to parse a date like this:

2008-06-30T00:00:00.000Z

Thanks, Joel

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Hardcore embedded Linux development
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Device drivers, firmware and debugging

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[Steve Strong]

I use something like:

    <<Year:4/binary,"-",

      Month:2/binary,"-",

      Day:2/binary,"T",

      Hour:2/binary,":",

      Minute:2/binary,":",

      Second:2/binary,

      _Rem/binary>> = list_to_binary(Date)

from there, it's trivial to return a datetime() tuple.

Cheers,

Steve

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Steve Strong

@srstrong

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[Anders Nygren]

Is this to primitive?

> Date="2008-06-30T00:00:00.000Z".
"2008-06-30T00:00:00.000Z"
> io_lib:fread("~d-~d-~dT~d:~d:~d.~dZ",Date).
{ok,[2008,6,30,0,0,0,0],[]}

/Anders

[Wei]

see jlib:datetime_string_to_timestamp/1 in ejabberd

On Dec 15, 5:18 am, Joel Reymont <joe...@gmail.com> wrote:
> Is there a function somewhere to parse a date like this:
>
> 2008-06-30T00:00:00.000Z
>
>     Thanks, Joel
>
> ---

> Hardcore embedded Linux developmenthttp://www.linkedin.com/in/joelreymont

> Device drivers, firmware and debugging
>
> _______________________________________________
> erlang-questions mailing list

> erlang-questi...@erlang.orghttp://erlang.org/mailman/listinfo/erlang-questions

[Gordon Guthrie]

Dale Harvey's dh_date module does a lot of date parsing and formatting:
https://github.com/daleharvey/dh_date

Gordon

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Gordon Guthrie
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[Jesse Gumm]

Write, I did not know about this. I had my own little homegrown date parser, but this is way more comprehensive. Very cool, thank you.

-Jesse

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Jesse Gumm
Owner, Sigma Star Systems
414.940.4866
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@jessegumm

[Jesse Gumm]

Wow at the auto correct fail there. First word should have been "Wow", not "write".

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Jesse Gumm
Owner, Sigma Star Systems
414.940.4866
www.sigma-star.com
@jessegumm

[Gordon Guthrie]

Yeah, his aim was to make a standard module like the corresponding PHP
library that could handle the RFC date formats in HTTP and stuff...

Its a nice sweet little library - should be a standard library really, I think.

Gordon

[Eric B Merritt]

With Dale's concent and approval, I made some parsing and testing
improvements and moved this into erlware_commons (whose point is to be
an extension to the stdlib) it is here ->
https://github.com/erlware/erlware_commons/blob/master/src/ec_date.erl

[Andrew Thompson]

On Thu, Dec 15, 2011 at 09:53:30AM -0500, Eric B Merritt wrote:
> With Dale's concent and approval, I made some parsing and testing
> improvements and moved this into erlware_commons (whose point is to be
> an extension to the stdlib) it is here ->
> https://github.com/erlware/erlware_commons/blob/master/src/ec_date.erl

So I can't list it as a rebar dep anymore without pulling down a whole
bunch of extraneous code, or maintaining my own fork of dh_date?

Also, why does the README for erlware commons talk about some expert
system stuff, if its supposed to be an 'extension to the erlang stdlib'?

Andrew

[Jesse Gumm]

Sure you can, the existence of ec_date doesn't negate the existence of
dh_date. If you want all the spiffy changes in ec_date without
pulling all of the ec libraries, you can always do a patch and submit
a pull request to Dale and see what happens there.

-Jesse

> So I can't list it as a rebar dep anymore without pulling down a whole
> bunch of extraneous code, or maintaining my own fork of dh_date?

--
Jesse Gumm
Sigma Star Systems
414.940.4866
gu...@sigma-star.com
http://www.sigma-star.com

[Dale Harvey]

Sorry missed this

Yeh I sent a message to Eric to see if those patched to ec_date could go back upstream for people who arent using the full commons library, if anyone else wants to do that Ill be happy to merge, I may try if I get some time.

I just wanted to mention I dont think this belongs in otp, I do however thing it should be a

$ magic-erlang-package-manager-distributed-with-erlang install dh_date

away though :)

Cheers
Dale