RS format spec (WIP)

steps.rs

--
This format is designed to be very easy to parse, flexible and deterministic. A
section may only be defined once. If multiple are defined using the same
identifier then only the first will be parsed.

Sections are marked by lines beginning with -- <identifier>. Blank identifiers
or ones that aren't searched for will be completely ignored and may contain
anything. Spaces, Tabs, and Newlines (LF, CRLF) are ignored.

Note: the version tag is _required_ to guarantee compatibility - if you don't
specify it the file will still work, but is not guaranteed to be compatible
with future revisions.

-- meta
title No One On Earth
artist Above & Beyond
version 1

-- timing
bpm 0 120
bpm 5000 140

-- chart.dance.medium
// row <time>, <note data>, <note coloring hint> [, reserved for future usage]
row 1000, 0 0 0 1, 4
row 1300, 0 1 0 0, 8
row 1420, 0 1 0 1, 16
row 1550, 1 1 0 0, 16
row 1600, 0 1 0 0, 4
row 1650, 0 0 1 0, 4
row 1700, 0 1 0 0, 8
row 1750, 0 0 1 0, 4