rcrossref v0.5.4

MINOR IMPROVEMENTS

• Improved documentation for cr_citation_count() to remove PLOS
  reference as the function isn't only for PLOS works (#108)
• Changed use of dplyr::rbind_all() to dplyr::bind_rows() (#113)

rcrossref v0.5.2

NEW FEATURES

• User-agent string is passed with every request to Crossref with
  names and versions of this package, and its HTTP dependency packages: httr
  and curl (which httr depends on). Will potentially be useful to
  Crossref to know how many requests come from this R client (#100)

DEPRECATED

• cr_search() and cr_search_free() use old Crossref web services, so
  are now marked deprecated, and will throw a deprecation message, but can
  still be used. They will both be defunct in v0.6 of this package (#99)

MINOR IMPROVEMENTS

• XML replaced with xml2 (#98)
• httr::content() calls: all parse to text then parse content
  manually. in addition, encoding explicitly set to UTF-8 on
  httr::content() calls (#98)

BUG FIXES

• Bug fix to cr_journals() - fix to parse correctly on some failed requests
  (#97) thanks @nkorf
• Bug fix to cr_fundref()/cr_funders() - parsing wasn't working correctly in
  all cases

rcrossref v0.5.0

Skipped v0.4 to v0.5 because of many changes - as described below.

NEW FEATURES

• Support added for 'deep paging' with the newer Crossref search API. Two new params added to each function: cursor, which accepts a cursor alphanumeric string or the special *, which indicates that you want to initiate deep paging; cursor_max, which is not in the Crossref API, but just used here in this package to indicate where to stop - otherwise, you'd get all results, even if there was 70 million, for example. A new internal R6 class used to make cursor requests easy (#77)
• New function id_converter() to get a PMID from a DOI and vice versa (#49)
• Added a Code of Conduct.
• New function cr_types(), along with its low level equivalent cr_types_() for when you just want a list or json back (#92)
• New suite of functions composing a low-level API for the Crossref search API. These functions only do data request, and return json or a list, and do not attempt to parse to a data.frame. The new functions: cr_funders_(), cr_journals_(), cr_licenses_(), cr_members_(), cr_prefixes_(), cr_types_(), cr_works_(). These functions are a bit faster, and aren't subject to parsing errors in the event of a change in the Crossref API. (#93)
• Added new filter_names() and filter_details() functions to get information on what filters
  are available, the expected values, and what they mean.

MINOR IMPROVEMENTS

• Added documentation for new filter types, and added them to list of filters for filter_names() and filter_details() (#73)
• cr_funders() alias added to cr_fundref() (#74)
• Made note in docs that funders without IDs don't show up on the /funders route,s in cr_funders() (#79)
• Made note in docs that sample parameter ignored unless works=TRUE (#81)
• Added note to docs that only what is returned in the API is what is searched when you search the Crossref API - that is, abstracts and full text aren't searched (#91)
• cr_cn() now checks that the user supplied content-type is supported for the DOI minting agency associated with the DOI (#88) (thanks @njahn82)
• Removed .progress parameter use internally where it wasn't applicable.
• sample parameter dropped from cr_licenses().
• cr_works() parsing changed. We now don't attempt to flatten nested arrays, but instead give them back as data.frame's nested within the main data.frame. For example, author often has many entries, so we return that as a single column, but indexing to that column gives back a data.frame with a row for each author, and N number of columns. Hopefully this doesn't break too much code downstream :)
• Additional text added to the package level man file (?rcrossref) to explain: what you're actually searching when you search; deprecated and defunct functions; and explanation of high vs. low level API.

BUG FIXES

• Fix to cr_members() to warn on error instead of stop during parsing (#68)
• Fix to internal parser for cr_works() to output links data, for full text links (#70)
• Minor fix in cr_cn() example that didn't work (#80)
• Fixed parsing of affiliation data inside author object in Crossref search API returned data (#84)
• Fixed parsing of funder award slot in Crossref search API returned data (#90)

DEPRECATED

• crosscite() deprecated, will be removed in a future version of this package (#78)
• cr_fundref() now has a deprecated message, and will be removed in the next version (#74)

rcrossref 0.3.4

NEW FEATURES

• Added new function crosscite() to work with the
  Citeproc service (#60)

BUG FIXES

• Fixed problems related to httr v1 (#65)
• Import all non-base R functions (#64)
• The agency route was down used by the cr_agency() function,
  back up and fixed now (#63)

v0.3.0

NEW FEATURES

• New function extract_pdf() to extract text from pdfs
• New function cr_ft_links() to get links for full text content of an article (#10)
• New function cr_ft_text() to gets full text content of an article. In addition,
  cr_ft_pdf(), cr_ft_plain(), and cr_ft_xml() are convenience functions that will get
  the format pdf, plain text, or xml, respectively. You can of course specify format in the
  cr_ft_text() function with the type parameter (#10) (#42)

MINOR IMPROVEMENTS

• Filled out more tests (#45)

BUG FIXES

• No longer assign queried doi to the data.frame in cr_works(), which caused failure if
  a non-Crossref DOI included (#52)
• pmid2doi() and doi2pmid() functions removed temporarily as the web service is down
  temporarily, but will be online again soon from Crossref (#48)

Binaries

• Windows binary: rcrossref_0.3.0.zip

v0.2.1

MINOR IMPROVEMENTS

• Fixes for man file examples. (#35)
• cr_citation() is deprecated (stil useable, but will be removed in a
  future version of the package). use cr_cn() instead. (#34)

v0.2.0

v0.2.0

First release to CRAN

• See the README for examples
• There are two vignettes, one on the various filters you can use in the metadata search API, and another for an intro to the package.