zeallot 0.2.0

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.

zeallot 0.1.0

Major Improvements

• Bumped to stable version.

Minor Improvements

• Removed outdate language in the unpacking assignment vignette. (#36)

Bug Fixes

• Destructuring objects with multiple classes will no longer raise a warning. (#35)

zeallot 0.0.6.1

Bug Fixes

• Resolved problem where collector variables would not be assigned the correct default value. (#34)

zeallot 0.0.6

Major Improvements

• The left-hand side may now contain calls to [[, [, and $ allowing assignment of parts of objects. The parent object must already exist, otherwise an error is raised. (@rafaqz, #32)

zeallot 0.0.5

Major Changes

• The bracket and colon syntax has been completely removed, users will now see an “unexpected call {” error message when attempting to use the old syntax. Please use the c() syntax for the name structure.

Major Improvements

• A %->% operator has been added. The right operator performs the same operation as %<-% with the name structure on the right-hand side and the values to assign on the left-hand side.
• = may be used to specify the default value of a variable. A default value is used when there are an insufficient number of values.

zeallot 0.0.4

Major Changes

• The bracket and colon syntax has been deprecated in favor of a lighter syntax which uses calls to c(). Documentation and vignettes has been updated accordingly. Using the old syntax now raises a warning and will be removed in future versions of zeallot. (@hadley, #21)

Minor Improvements

• %<-% can now be used for regular assignment. (@hadley, #17)
• ... can now be used to skip multiple values without assigning those values and is recommended over the previously suggested ..... (@hadley, #18)

Miscellaneous Changes

• massign() is no longer exported.

Bug Fixes

• Numerics on left-hand side are no longer unintentionally quoted, thus no longer treated as valid variable names, and will now raise an error. (@hadley, #20)
• Language objects on left-hand side are no longer treated as symbols and will now raise an error. (@hadley, #20)

zeallot 0.0.3

• see 0.0.2.1 notes for additional updates

Minor Improvements

• Examples now consistently put spaces around colons separating left-hand side variables, e.g. a : b instead of a: b.

Bug Fixes

• When unpacking an atomic vector, a collector variable will now collect values as a vector. Previously, values were collected as a list (#14).

zeallot 0.0.2.1

• Not on CRAN, changes will appear under version 0.0.3

• Added missing URL and BugReports fields to DESCRIPTION

• Fixed broken badges in README

zeallot 0.0.2

• Initial CRAN release
• zeallot 0.0.1 may be installed from GitHub