zeallot 0.2.0 (drifting by)

Breaking changes

• The collector syntax has changed. The previous syntax ... was incompatible
  with R CMD check and would raise the error "... may be used in an incorrect
  context". The new syntax .. (double dots instead of triple) avoids this
  error. (#62)

  # new
  c(x, ..) %<-% list(1, 2, 3)
  
  # old
  c(x, ...) %<-% list(1, 2, 3)

• The destructure methods for the Date, character, and complex classes have
  been removed.

New features

• Values may now be assigned by name. The new syntax allows assigning a
  value to a variable by name instead of position. (#47)

  c(disp=, gear=) %<-% mtcars

• For package developers, the new function zeallous() will prevent
  R CMD check from raising visible binding errors for variables assigned using
  %<-%. Call the function from a package's .onLoad function. (#57)

  .onLoad <- function(libname, pkgname) {
    zeallous()
  }

Major improvements

• Collector variables now default to an empty list instead of raising an error
  when there are no values to collect. (#56)

  c(x, ..y) %<-% list(1)

• Trailing anonymous collectors and value skips no longer raise errors.

  c(x, ..) %<-% list(1)
  
  c(y, .) %<-% list(1)

Minor improvements

• Error messages have been simplified.

• R versions >= 3.2 are formally supported.