Message-ID: <1354200226477-4651286.post@n4.nabble.com>
Date: 2012-11-29T14:43:46Z
From: downtowater
Subject: splitting a string by space except when contained within quotes
I've been trying to split a space delimited string with double-quotes in R
for some time but without success. An example of a string is as follows:
/rainfall snowfall "Channel storage" "Rivulet storage"/
It's important for us because these are column headings that must match the
subsequent data.
Here is some code I've been trying:
str <- 'rainfall snowfall "Channel storage" "Rivulet storage"'
regex <- "[^\\s\"']+|\"([^\"]*)\""
split <- strsplit(str, regex, perl=T)
what I would like is
[1] "rainfall" "snowfall" "Channel storage" "Rivulet storage"
but what I get is:
[1] "" " " " " " "
The vector is the right length (which is encouraging) but of course the
strings are empty or contain a single space. Any suggestions?
Thanks in advance!
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