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

[Brian Lee Yung Rowe]

Here are two more standard emacs bindings that work:  Ctrl-K to cut and Ctrl-Y to paste. 

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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
> 
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