# Meetup

Calculate the date of meetups.

Typically meetups happen on the same day of the week.  In this exercise, you
will take a description of a meetup date, and return the actual meetup date.

Examples of general descriptions are:

- The first Monday of January 2017
- The third Tuesday of January 2017
- The wednesteenth of January 2017
- The last Thursday of January 2017

The descriptors you are expected to parse are:
first, second, third, fourth, fifth, last, monteenth, tuesteenth, wednesteenth,
thursteenth, friteenth, saturteenth, sunteenth

Note that "monteenth", "tuesteenth", etc are all made up words. There was a
meetup whose members realized that there are exactly 7 numbered days in a month
that end in '-teenth'. Therefore, one is guaranteed that each day of the week
(Monday, Tuesday, ...) will have exactly one date that is named with '-teenth'
in every month.

Given examples of a meetup dates, each containing a month, day, year, and
descriptor calculate the date of the actual meetup.  For example, if given
"The first Monday of January 2017", the correct meetup date is 2017/1/2.

## Running tests

In order to run the tests, issue the following command from the exercise
directory:

For running the tests provided, `rebar3` is used as it is the official build and
dependency management tool for erlang now. Please refer to [the tracks installation
instructions](http://exercism.io/languages/erlang/installation) on how to do that.

In order to run the tests, you can issue the following command from the exercise
directory.

```bash
$ rebar3 eunit
```

### Test versioning

Each problem defines a macro `TEST_VERSION` in the test file and
verifies that the solution defines and exports a function `test_version`
returning that same value.

To make tests pass, add the following to your solution:

```erlang
-export([test_version/0]).

test_version() ->
  1.
```

The benefit of this is that reviewers can see against which test version
an iteration was written if, for example, a previously posted solution
does not solve the current problem or passes current tests.

## Questions?

For detailed information about the Erlang track, please refer to the
[help page](http://exercism.io/languages/erlang) on the Exercism site.
This covers the basic information on setting up the development
environment expected by the exercises.

## Source

Jeremy Hinegardner mentioned a Boulder meetup that happens on the Wednesteenth of every month [https://twitter.com/copiousfreetime](https://twitter.com/copiousfreetime)

## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.