Later, when we want to implement multithreading, we need to use separate variables. This is also a bit cleaner
FossilOrigin-Name: b720083c13871db7a6b0f8573a91a7ac057d39d3a409df2232574bc001821e74
Introduces a new path parser that uses the : token to represent a variable. It isn't fully featured but is just capable enough to work for ratFE
FossilOrigin-Name: f7646dd5278f3c509d96307e45dc216522f81d9b93eb6b17125dc1b1892b1eee
