[R] regex pattern assistance

[Jeff Newmiller]

Must be another lucky streak. :-)
---------------------------------------------------------------------------
Jeff Newmiller                        The     .....       .....  Go Live...
DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live Go...
                                      Live:   OO#.. Dead: OO#..  Playing
Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
/Software/Embedded Controllers)               .OO#.       .OO#.  rocks...1k
--------------------------------------------------------------------------- 
Sent from my phone. Please excuse my brevity.

On August 15, 2014 9:56:21 AM PDT, Tom Wright <tom at maladmin.com> wrote:
>WOW!!!
>
>What can I say 4 answers in less than 4 minutes. Thank you everyone. If
>I can't make it work now I don't deserve to. 
>
>btw. the strsplit approach wouldn't work for me as:
>a) I wanted to play with regex and 
>b) the location isn't consistent.
>
>Nice to see email support still works, not everything has moved to
>linkedin and stackoverflow.
>
>
>Thanks again,
>Tom
>
>
>On Fri, 2014-08-15 at 12:18 -0400, Tom Wright wrote:
>> Hi,
>> Can anyone please assist.
>> 
>> given the string 
>> 
>> > x<-"/mnt/AO/AO Data/S01-012/120824/"
>> 
>> I would like to extract "S01-012"
>> 
>> require(stringr)
>> > str_match(x,"\\/mnt\\/AO\\/AO Data\\/(.+)\\/+")
>> > str_match(x,"\\/mnt\\/AO\\/AO Data\\/(\\w+)\\/+")
>> 
>> both nearly work. I expected I would use something like:
>> > str_match(x,"\\/mnt\\/AO\\/AO Data\\/([\\w -]+)\\/+")
>> 
>> but I don't seem able to get the square bracket grouping to work
>> correctly. Can someone please show me where I am going wrong?
>> 
>> Thanks,
>> Tom
>>
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.