TimeBlok

A language for scheduling and planning calendar events that compiles to iCalendar (ICS).

The Language

Design

The TimeBlock language is a simple markup language that can be used on top of any plain text file, inspired by Cal Newport's blog post Text File Time Blocking.

The language aims to maintain a minimalistic syntax, keeping the versatility of plain text files, while providing an interface to the convienence of modern digital calendars via compiling to .ics files, a file format for digital events that's barely human-readable but is supported by all calendar applications.

Examples

Daily planning

This is the simplest use case 2023-1-1 7:30am wake up & eat beakfast 8am~11:30 work on TimeBlok - Write Technical Documentation 2pm~6pm Study for exams 8pm~10pm Reading - Finish an entire book When compiled into an .ics file, this could be imported into your calendar.

Monthly planning

``` 2023-1- --5 7:30am wake up to a new day 10am ~ 11am work on EvilCorp - Gain root access to EvilCorp's servers - Do not get caught

--10 8am~10am Resign from EvilCorp - Make sure you still have access to the servers

-2- --1 3pm~4pm Initiate operation "Hack the planet" ```

When resolved, this is equivalent to the following events, which will then be compiled to an .ics file: 2023-1-5 7:30~8:00 wake up to a new day 2023-1-5 10:00~11:00 work on EvilCorp - Gain root access to EvilCorp's servers 2023-1-10 8:00~10:00 Resign from EvilCorp - Make sure you still have access to the servers 2023-2-1 3:00~4:00 Initiate operation "Hack the planet"

... Which could be imported into your digital calendar!

Rules (WIP)

(Correct me if I'm wrong about any terms, I started Crafting Interpreters a week ago)

The TimeBlock language currently recognizes three types of statements(by order of precedence): - Event - Occasion - Notes

Occasion is any single line that describes a point in time. It can be a date, a time, or a date and time.

An Event is a line of text that starts with an Occasion or Range and is followed by text indicating the event's name. If an Occasion is specified, the Range will start with the Occasion and assume a duration of 30 minutes.

A Note just a line of text, if it occurs after an Event, it is considered a note for that event, which will correspond to the DESCRIPTION field of an ics entry.

A Range is simply a pair of Occasions, separated by a ~, indicating, well, a time-range.

Installation

Currently, a Rust installation is required.

Installing from cargo: bash $ cargo install timeblok

Usage

bash $ timeblok input.txt -o output.ics