That did the trick. I have read about regular expressions often, and
sometimes I get them right and sometimes I don't. Is there a good
reference resource that anyone could suggest? Thanks for all of the help.
Stephen Sefick
On 11/03/2011 08:03 AM, jim holtman wrote:
your syntax is wrong,
your syntax is wrong, you need:
scripts2source[grep("*\\.R$", scripts2source)]
Notice the '\\.' to escape the special meaning of '.', and the "$" to
anchor to the end of the line.
On Thu, Nov 3, 2011 at 8:54 AM, Stephen Sefick wrote:
> #This is probably due to my incomplete understanding of g
Hi,
. and * both mean something different in regular expressions than in
command-line wildcards. You need:
grep(".*\\.R$", scripts2source)
which parses to
.- any character
*- any number of times
\\. - an actual . escaped as R requires
R - the R denoting a script
$ - at the end of the
#This is probably due to my incomplete understanding of grep, but the
below code has been working for some time to
#search for .R with anything in front of it and return a list of scripts
to source. Likely, the syntax for the
#grep statement has been wrong all along.
scripts2source <- (c("/hom
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