[Rd] "with" doesn't work with names with blanks

Spencer Graves @pencer@gr@ve@ @end|ng |rom prod@y@e@com
Sun May 1 21:41:39 CEST 2022

Hello, All:

	  Column names in a data.frame are not supposed to have trailing 
blanks.  However, a CRAN package created one, which threw an error with 
"with".  Consider the following example:

 > (tst <- data.frame(1))
1  1
 > names(tst) <- 'x '
 > tst$x
[1] 1
 > with(txt, x)
Error in with(txt, x) : object 'txt' not found

	  I think it's interesting that "tst$x" works, but "with(txt, x)".


	  It's not a major problem, though it took me a while to diagnose.  (I 
reported it to the maintainer of the package that returned a data.frame 
with names with trailing blanks.)

	  Thanks, for all your work in maintaining and upgrading R -- and in 
responding to emails from this list.

	  Spencer Graves

 > sessionInfo()
R version 4.2.0 (2022-04-22)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Big Sur 11.6.5

Matrix products: default

[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] compiler_4.2.0 tools_4.2.0

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