use case: parse DOIs into their pieces

[sckott]

parse DOI into:

prefix/suffix == (prefix, suffix)

e.g., 10.1007/978-3-319-68041-5_5 == c("10.1007", "978-3-319-68041-5_5")

@noamross does this capture what you want?

[noamross]

I think so. I actually don't know enough about DOI formats to know if the suffix can be broken up into further components. I guess that's specific to the publisher?

[sckott]

Prefix can be further broken up in to 10 + XXXX. the 10 at the beginning is always 10 for DOIs.

For suffixes, yeah I think germane to the publisher so not sure there's one way to parse those, there could be publisher specific parsing, but that would be a huge can of worms

[sckott]

now there's fxns for getting out prefixes and suffixes

still working on a fxn to split by separator / - easy in theory, but getting used to PEG stuff