overflow when reporting errors caused by too large input strings

Top-level handlers are now more robust to attempts to remove a

more consistently computes grid values for the

, correcting density values typically by a

controlling whether the vector of colours

that is returned has names (where possible).

Kirill Müller's report and Duncan Murdoch's patch in

A non-blocking connection with non-default encoding (such as

Ivan Krylov's report and patch proposal in

argument descriptions when they spanned multiple lines,

Plain-text help no longer outputs spurious colons in the

now warns that it computes the 1-norm with

to detect such template leftovers, including from

When S4 method dispatch fails because no method was found, the

error message now includes the signature argument names; thanks to

Michael Chirico's proposal on the R-devel list.

previously lost, thanks to Andrew Simmons' report plus fix in

in particular, untransformed variables are kept as-is,

including those with syntactically invalid names (

large. It now shows the number of browser contexts on the stack.

argument is now properly passed to methods,

Some error and warning messages for large (

the underlying connection uses extra spaces in the input buffer.  This

fixes problems with extra garbage seen with

Named capture in PCRE regular expressions now works also with

Datetime functions are now robust against long jumps when

dealing with internal time zone changes.  This avoids confusing

warnings about an invalid time zone, previously triggered by turning

warnings into errors or handling them via

Datetime functions now restore even an empty

environment variable after internal time zone changes (

This makes results of datetime functions with this (typically

categorical predictor variables rather than

and the other source references from parsed

is more accurate now, notably when its result is

also improving other instances where C level

Comparisons for language objects (which are based on

deparsing) are now more careful about using accurate deparsed

In Rd examples, code following the closing brace of a