I suspect that the parser used it to store comments, including the initial
"#", before R started using the srcref attribute. (S also stored comments
in the parse tree.)
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Tue, Nov 12, 2019 at 4:16 PM Duncan Murdoch
wrote:
> On 12/11/2019 5:01 p.m.
On 12/11/2019 5:01 p.m., William Dunlap via R-devel wrote:
In general R doesn't print the "comment" attribute of an object
> structure(1:3, comment=c("a comment", "another comment"))
[1] 1 2 3
but if the object is a call it prints it in an unusual format
> structure(quote(func(arg)),
Bill,
Without being involved in that code at all, it seems that this could be
used to (re)create commented source code from R objects. That format seems
to correspond directly to a call in a .R file with two comments above it. A
bit weird there's no comment character there but I guess thats expect
> You can have your own rant about "user-defined binary operators being
> over-used within the R community" without suggesting that my rant was
> rude.
I wasn't suggesting that you were rude.
I was questioning a trend.
__
R-devel@r-project.org mailing l
In general R doesn't print the "comment" attribute of an object
> structure(1:3, comment=c("a comment", "another comment"))
[1] 1 2 3
but if the object is a call it prints it in an unusual format
> structure(quote(func(arg)), comment=c("a comment", "another comment"))
a comment
anoth
On 11/12/19 12:21, Abby Spurdle wrote:
>
>
>> x %inherits% "data.frame"
>
> IMHO, I think that user-defined binary operators are being over-used
> within the R community.
>
> I don't think that they're "cute" or stylish.
> I think their use should be limited to cases, where they significant
>x %inherits% "data.frame"
IMHO, I think that user-defined binary operators are being over-used
within the R community.
I don't think that they're "cute" or stylish.
I think their use should be limited to cases, where they significantly
increase the readability of the code.
However, readab
