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

[Peter Meilstrup]

For these programs that use GNU readline, hit Alt-Control-J to switch into vi-like bindings. 

On Jul 5, 2013, at 16:42, Brian Lee Yung Rowe <rowe at muxspace.com> wrote:

> That is a more accurate statement regarding Ctrl-K. Nonetheless whatever is killed can be yanked back via Ctrl-Y, so the effect emulates cutting and pasting. I am also a vi user, but these four basic emacs bindings seem to perennially haunt numerous terminal apps. 
> 
> •••••
> Brian Lee Yung Rowe
> 917 496 4583
> 
> 
> On Jul 5, 2013, at 3:53 PM, William Dunlap <wdunlap at tibco.com> wrote:
> 
>> 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
> 
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