On 01.06.2010 02:19, David Winsemius wrote:
On May 31, 2010, at 8:14 PM, jim holtman wrote:
try this:
input <- readLines("yourfile.txt")
# determine start
start <- grep("\tBegin Main\t", input)[1] # first line if many
Puzzled. I thought backslashes in grepping patterns needed to be
doubled? I guess not.
Well, yes, for a backslash, but here a tab is specified, but no
backslash at all.
Additionally, see ?regex:
"The current implementation interprets \a as BEL, \e as ESC, \f as FF,
\n as LF, \r as CR and \t as TAB."
Uwe Ligges
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