quote(expr) will make no changes in expr, it just returns its one argument,
unevaluated.
substitute could be used in your lapply(..., library) example to give
library a name instead
of a character string for an input (which might be necessary if the
character.only argument
were not available)
l
Hi,
This happens when attempting to install any package. There were no such
problems on 11.0.
Some other ways to trigger the problem:
curlGetHeaders("http://bugs.r-project.org";)
There are no problems with the first two calls, but then the crash
always happens on the third call.
tf <- tempfile(
Thanks again Bill; I agree that substitute is overkill here.
As an aside, for cases where someone may be tempted to use substitute(),
it seems quote() might be a safer alternative; compare
> lapply(list(1), function(y) c(quote(y), substitute(y)))
[[1]]
[[1]][[1]]
y
[[1]][[2]]
Sorry, if I am spamming/not using the right list, but I think I might be
onto a regression in current devel.
Namely, special (non-ASCII) characters with latin1 encoding do not get
printed as glyphs with R 3.5.0 devel but were with R 3.4.1.
This output is from
# R version 3.4.1 (2017-06-30) -- "S
> Suharto Anggono Suharto Anggono via R-devel
> on Sun, 30 Jul 2017 14:57:53 + writes:
> R devel's bind.c has been ported to R patched. Is it OK while names of
'unlist' or 'c' result may be not strictly the same as in R 3.4.1 because of
changed function 'NewName' in bind.c?
