citecorp 0.3.0

oc_coci_refs(), oc_coci_cites(), and oc_coci_citation() now support more than one DOI or COCI identifier passed in. oc_coci_meta() already supported more than one identifier; now all four oc_coci* methods support more than one identifier. The caveat is that the API route behindn oc_coci_meta() supports >1 identifier in a single http request - whereas the API routes behind the other functions only support one identifier per request, so they make an http request for each identifier passed in (#6)

citecorp 0.2.2

better check if http requests will work before running examples that require http requests (#5)

the functions oc_doi2ids, oc_pmid2ids, and oc_pmcid2ids (see ?oc_lookup) now all accept more than 1 identifier. the underlying SPARQL queries were modified to make this possible. (#1)
three new package datasets (oc_dois, oc_pmids, oc_pmcids) with vectors of identifiers of each of those types for testing and examples

fixed an error in parsing results in oc_lookup functions - this fix was later changed as part of another fix, but still appreciated (#2) (#3) thanks @Selbosh
fix to parsing in oc_lookup functions: only retrieve data.frame columns if they exist - prevents error on retrieving a column that doesn’t exist (#4) thanks @Selbosh