[R] R multiline expression grief

[Wacek Kusnierczyk]

Gabor Grothendieck wrote:
> On Fri, Mar 13, 2009 at 10:11 AM, Wacek Kusnierczyk
> <Waclaw.Marcin.Kusnierczyk at idi.ntnu.no> wrote:
>   
>> Gabor Grothendieck wrote:
>>     
>>> If all your code has semicolons you could write a program that
>>> puts each statement on one line based on the semicolons and
>>> then passing it through R will reformat it in a standard way.
>>> See Rtidy.bat in the batchfiles distribution for the reformatting part:
>>> http://batchfiles.googlecode.com
>>>
>>>       
>> for the "puts each statement on one line based on the semicolons" part,
>> it's enough to pass the program through a simple sed script, *provided*
>> that each line not ending in a semicolon is not a complete line:
>>
>>    sed -n  '/;\s*$/!{H}; /;\s*$/{H;g;s/\n//g;s/;\s*$//;p;s/.//g;h}'
>> input > output
>>
>> (i guess this can be simplified.)
>>
>>     
>
> One would want to be sure that a comment is not continued onto
> a code line.
>   

of course;  you'd have to handle comments separately.

vQ