clojure.instant — mvc-works/lilac 0.1.0-dev1

parse-timestamp clj

(parse-timestamp new-instant cs)

Parse a string containing an RFC3339-like like timestamp.

The function new-instant is called with the following arguments.

            min  max           default
            ---  ------------  -------

years 0 9999 N/A (s must provide years) months 1 12 1 days 1 31 1 (actual max days depends hours 0 23 0 on month and year) minutes 0 59 0 seconds 0 60 0 (though 60 is only valid nanoseconds 0 999999999 0 when minutes is 59) offset-sign -1 1 0 offset-hours 0 23 0 offset-minutes 0 59 0

These are all integers and will be non-nil. (The listed defaults will be passed if the corresponding field is not present in s.)

Grammar (of s):

date-fullyear = 4DIGIT date-month = 2DIGIT ; 01-12 date-mday = 2DIGIT ; 01-28, 01-29, 01-30, 01-31 based on ; month/year time-hour = 2DIGIT ; 00-23 time-minute = 2DIGIT ; 00-59 time-second = 2DIGIT ; 00-58, 00-59, 00-60 based on leap second ; rules time-secfrac = '.' 1*DIGIT time-numoffset = ('+' / '-') time-hour ':' time-minute time-offset = 'Z' / time-numoffset

time-part = time-hour [ ':' time-minute [ ':' time-second [time-secfrac] [time-offset] ] ]

timestamp = date-year [ '-' date-month [ '-' date-mday [ 'T' time-part ] ] ]

Unlike RFC3339:

• we only parse the timestamp format
• timestamp can elide trailing components
• time-offset is optional (defaults to +00:00)

Though time-offset is syntactically optional, a missing time-offset will be treated as if the time-offset zero (+00:00) had been specified.

read-instant-calendar clj

(read-instant-calendar cs)

To read an instant as a java.util.Calendar, bind data-readers to a map with this var as the value for the 'inst key. Calendar preserves the timezone offset.

read-instant-date clj

(read-instant-date cs)

To read an instant as a java.util.Date, bind data-readers to a map with this var as the value for the 'inst key. The timezone offset will be used to convert into UTC.

read-instant-timestamp clj

(read-instant-timestamp cs)

To read an instant as a java.sql.Timestamp, bind data-readers to a map with this var as the value for the 'inst key. Timestamp preserves fractional seconds with nanosecond precision. The timezone offset will be used to convert into UTC.

validated clj

(validated new-instance)

Return a function which constructs an instant by calling constructor after first validating that those arguments are in range and otherwise plausible. The resulting function will throw an exception if called with invalid arguments.