# `frame-sequence`
A simple parser for frame sequences strings.
This will parse a `str` describing a sequence of frames into
a `Vec<isize>` containing individual frame numbers.
Mainly intended/useful for rendering/animation applications.
## Example Frame Sequence Strings
Individual frames:
`1,2,3,5,8,13` ⟶ `[1, 2, 3, 5, 8, 13]`
A sequence:
`10-15` ⟶ `[10, 11, 12, 13, 14, 15]`
With step size:
`10-20@2` ⟶ `[10, 12, 14, 16, 18, 20]`
Step size must be always positive.
To get a sequence backwards specify the range in reverse:
`42-33@3` ⟶ `[42, 39, 36, 33]`
With binary splitting:
`10-20@b` ⟶ `[10, 20, 15, 12, 17, 11, 13, 16, 18, 14, 19]`
The last frame of a sequence will be omitted if
the specified step size does not touch it:
`80-70@4` ⟶ `[80, 76, 72]`