An extensible date time library for Elm
First off, thanks to Bogdanp and all other contributers to elm-time. A large part of this library is based on their work (or shamelessly copied). I hope you like what will become of it.
There are the core modules Date and Time already. A much more comprehensive library is found in elm-time, formerly maintained by Bogdanp, now by [elm-community][elm-community]. So why bother with this one?
Bogdanp did a great job.
Unfortunately, date and time handling is complicated.
Many cases cannot be covered with elm-time, like leap seconds.
Also, it only supports the (proleptic) gregorian calendar and is hard to extend.
This library tries to stay close to the API from elm-time where this makes sense.
But due to the nature of things, it will not be a drop-in replacement.
In case you are wondering now if you should start with the simple library and switch if you ever need it: don't.
Sooner or later, all the little edge cases creep up.
If you don't believe me, read a little bit about week numbering.
Many features are planned for this library. I doubt I can manage them all, so if you feel like solving something, message me. In general, I take inspiration from the Java Time API. The API as such is of course object-oriented, but it is also very feature-rich. So I strive to get in as many features as possible, staying close to their terminology.
- Basic data types for date and time
- local, with offset, or with time zone
- support for gregorian calendar
- extensible for other systems
- Include other calendar systems
- A flexible parser system
- support ISO 8601 including variants
- allow to customize/combine parser or write new ones
- A customizable formatter system
- include ISO 8601 by default
- allow full customization
- (maybe) add internationalization