[Rd] should the text for RIGHT_ASSIGN be -> in getParseData()?

[William Dunlap]

Ctrl-K is delete from here to end of line on Linux-comand-line and Windows-GUI R.
(My fingers are not nimble enough for emacs, I'll stick with vi.)

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com


> -----Original Message-----
> From: Brian Lee Yung Rowe [mailto:rowe at muxspace.com]
> Sent: Friday, July 05, 2013 12:11 PM
> To: William Dunlap
> Cc: peter dalgaard; R-devel; Barry Rowlingson
> Subject: Re: [Rd] should the text for RIGHT_ASSIGN be -> in getParseData()?
> 
> Here are two more standard emacs bindings that work:  Ctrl-K to cut and Ctrl-Y to paste.
> 
> •••••
> Brian Lee Yung Rowe
> 917 496 4583
> 
> 
> On Jul 5, 2013, at 2:32 PM, William Dunlap <wdunlap at tibco.com> wrote:
> 
> >> But up-arrow, ctrl-A then "z <-" is not much less convenient, is it?
> >
> > I didn't know that ctrl-A would bring me to the start of the line, nor
> > that ctrl-E would bring me to the end.  Thanks.
> >
> > Bill Dunlap
> > Spotfire, TIBCO Software
> > wdunlap tibco.com
> >
> >
> >> -----Original Message-----
> >> From: peter dalgaard [mailto:pdalgd at gmail.com]
> >> Sent: Friday, July 05, 2013 11:25 AM
> >> To: William Dunlap
> >> Cc: Barry Rowlingson; R-devel
> >> Subject: Re: [Rd] should the text for RIGHT_ASSIGN be -> in getParseData()?
> >>
> >>
> >> On Jul 5, 2013, at 18:59 , William Dunlap wrote:
> >>
> >>>> Is there any reason right-assign with "->" still exists? How much
> >>>> code on CRAN uses it, and how trivially could it be excised?
> >>>
> >>> I use '->' a lot when doing interactive work.  I often first run a command
> >>> to see its printed output then decide that I had better save its value.
> >>> The up-arrow key gives me the previous command line with the cursor placed at the
> >>> end of the line so adding '-> z' at the end of the line is convenient.
> >>> (Not using the up-arrow key and doing 'z <- .Last.value' also works, but
> >>> I don't like its context sensitivity.)
> >>
> >> But up-arrow, ctrl-A then "z <-" is not much less convenient, is it?
> >>
> >> I have used in with multi-line input, occasionally, though. As in
> >>
> >> replicate(10000, {
> >>   ysim <- rbinom(length(p), n, p)
> >>   glm(cbind(ysim, n - ysim) ~ x, binomial)$deviance
> >> })
> >>
> >> ... and then you realize that you probably don't want to look at 10000 simulated
> >> deviances and add "-> simDev".
> >>
> >>>
> >>> I never use '->' when writing code in a file, so you would have to search
> >>> my .Rhistory files, not my *.R files, for evidence of its usefulness to me.
> >>>
> >>> Bill Dunlap
> >>> Spotfire, TIBCO Software
> >>> wdunlap tibco.com
> >>>
> >>>
> >>>> -----Original Message-----
> >>>> From: r-devel-bounces at r-project.org [mailto:r-devel-bounces at r-project.org] On
> >> Behalf
> >>>> Of Barry Rowlingson
> >>>> Sent: Friday, July 05, 2013 9:29 AM
> >>>> To: Duncan Murdoch
> >>>> Cc: R-devel
> >>>> Subject: Re: [Rd] should the text for RIGHT_ASSIGN be -> in getParseData()?
> >>>>
> >>>> On Fri, Jul 5, 2013 at 12:57 PM, Duncan Murdoch
> >>>> <murdoch.duncan at gmail.com> wrote:
> >>>>
> >>>>> R itself doesn't make use of the text column, it's for display of code
> >>>>> by highlighters etc.  So if anyone does assume text is a function name,
> >>>>> it's their bug, not ours.  In fact, the bug is already there, because
> >>>>> there is actually one other example which was being parsed properly,
> >>>>> "**" is translated to "^".  There's no `**` function, but 2**3 works.
> >>>>
> >>>> Is there any reason right-assign with "->" still exists? How much
> >>>> code on CRAN uses it, and how trivially could it be excised? Can we
> >>>> also have 'up assign'  and "down assign" so I can do:
> >>>>
> >>>>>   3
> >>>>> x -^
> >>>>> x -v
> >>>>>   4
> >>>>
> >>>> - they make just as much sense.
> >>>>
> >>>> Okay, lets see all the edge cases.....
> >>>>
> >>>> Barry
> >>>>
> >>>> ______________________________________________
> >>>> R-devel at r-project.org mailing list
> >>>> https://stat.ethz.ch/mailman/listinfo/r-devel
> >>>
> >>> ______________________________________________
> >>> R-devel at r-project.org mailing list
> >>> https://stat.ethz.ch/mailman/listinfo/r-devel
> >>
> >> --
> >> Peter Dalgaard, Professor,
> >> Center for Statistics, Copenhagen Business School
> >> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
> >> Phone: (+45)38153501
> >> Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com
> >
> > ______________________________________________
> > R-devel at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-devel