Dear all, I hope somebody can help me understand if package authors are allowed to create custom R connections or not.
Until today, I thought that R had an "official" way to define custom connections. E.g. this is an old commit message that was supposed to create an API, maybe internal, though. > r62016 | urbaneks | 2013-02-21 14:29:44 -0500 (Thu, 21 Feb 2013) | 1 line > add API to create custom connections The /src/include/R_ext/Connections.h file mentions "connection APIs". "Writing R Extensions" has: > Facilities for defining custom connection implementations are provided in > R_ext/Connections.h, but make sure you consult the file before use. This appeared in the R 3.3.0 NEWS: > The connections API now includes a function R_GetConnection() which allows > packages > implementing connections to convert R connection objects to Rconnection > handles used in the > API. Code which previously used the low-level R-internal getConnection() > entry point should > switch to the official API. However, from today, the R 3.3.0 NEWS item reads somewhat differently: https://github.com/wch/r-source/commit/7e9889fa9bb9269ffadfe67f3ded4bdca51b8ed9 And perhaps more importantly, R CMD check gives a NOTE about R_new_custom_connection and some other connection related functions now: https://github.com/wch/r-source/commit/e55605767570fc424b6c281e0b7489e8dc77b53f I am not sure what this means for package authors. Can package authors use R_new_custom_connection to create custom connections? If not, is there another way to create custom connections? Thank you, Gabor ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
