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README.md

erlang_iso8601

Formats and parses ISO 8601 dates. This fork incorporates various improvements such as sl45sms parse durations patch aswell as tsloughter decimal seconds patch

Usage

Add it to your rebar.config deps:

{'iso8601', ".*", {git, "git@github.com:kivra/erlang_iso8601.git", {tag, "1.2.0"}}}

Format a timestamp or calendar datetime tuple:

> iso8601:now().
<<"2012-02-16T01:06:19Z">>
> iso8601:format(calendar:universal_time()).
<<"2012-02-16T01:06:48Z">>

Parse a date string or binary:

> iso8601:parse(<<"2012-02-16T01:06:48Z">>).
{{2012,2,16},{1,6,48}}
> iso8601:parse("2012-02-16T01:06:48Z").
{{2012,2,16},{1,6,48}}

Add 1 hour, 2 minutes and 3 seconds to a datetime tuple:

> Datetime = iso8601:parse(<<"2012-02-16T01:06:48Z">>).
{{2012,2,16},{1,6,48}}
> iso8601:add_time(Datetime, 1, 2, 3).
{{2012,2,16},{2,8,51}}

Get interval datetimes list examples:

> Intervals = iso8601:parse_interval("R5/2008-03-01T13:00:00Z/P1Y2M10DT2H30M").
[{{2009,5,11},{15,30,0}},
 {{2010,7,21},{18,0,0}},
 {{2011,10,1},{20,30,0}},
 {{2013,12,11},{23,0,0}},
 {{2015,2,22},{1,30,0}}]
> Intervals = iso8601:parse_interval("2008-03-01T13:00:00Z/P1Y2M10DT2H30M").
> Intervals = iso8601:parse_interval("R5/P1Y2M10DT2H30M").
> Intervals = iso8601:parse_interval("R5/P1Y/2008-03-01T13:00:00Z").

Known deficiencies

  • Does not support expanded year representation.
  • Does not support fractional times.
  • Does not support ordinal dates.

See the open issues for more info.

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