Plain text calendar creation

To install:

virtualenv venv
source venv/bin/activate
pip install requirements.txt

To run the server:

python promise.py

To unit-test the server:

python test.py

To run a client:

python client.py "every weekday" Note, this just does a GET request on localhost:5000 with GET form data q: every weekday

####Assignment: Create an API for transforming natural language recurring date expressions into the equivalent calendar format. The API should accept recurring meeting time expressions in at least three formats:

1. "every weekday"
2. "every weekday at 5pm"
3. "every week on Monday and Wednesday at 5pm"
4. "every week on Monday and Wednesday at 5pm until 6/1"

And it should return either:

• the expression converted to a RRULE or RRULESET (see the iCalendar RFC), embedded in a plain-text (i/v)calendar format
• an expanded, plain-text list of event start times in some human readable format (e.g. "2015-03-26 18:00:00"), one per line, subject to some reasonable limit

Additional details for the API

• when provided, event start times will always be in the form "at ”
• similarly, end dates for the recurrence will be in the form "until ".
• when an "at" time is provided, it is at the end of string, unless an "until" is included, which would then conclude the expression.
• the start for the recurrence can be assumed to be the date of submission or the clock time of the first event, where provided
• timezones can be ignored or fixed to an arbitrary selection

Solutions & Scoping:

• To get a sense of the scope of work and what libraries would be appropriate, please don't expect to spend more than 3 hours at this.
• Please use any open-source libraries that you wish but do not call external APIs that you have not created.
• Please provide your documented code for the service & a small sample client, along with instructions for installing and running them locally in a Linux/Mac OS X environment

• an IP-based service API and client. The protocol is up to you, just explain how it works
• any combination of open source libraries you want to use to meet the requirements is fine. Again, just don’t use a commercial or external API. I should be able to setup and run your solution on a box with only local loop networking.

Not required but interesting:

• Extend the API to also accept a RRULE/RRULESET expression and return that rule expressed in natural language