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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Do not modify this file since it was automatically generated from:
%
% countLines.R
%
% by the Rdoc compiler part of the R.oo package.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\name{countLines}
\alias{countLines.default}
\alias{countLines}
\title{Counts the number of lines in a text file}
\description{
Counts the number of lines in a text file by counting the number of occurrences of platform-independent
newlines (CR, LF, and CR+LF [1]), including a last line with neither.
An empty file has zero lines.
}
\usage{
\method{countLines}{default}(file, chunkSize=5e+07, ...)
}
\arguments{
\item{file}{A \code{\link[base:connections]{connection}} or a pathname.}
\item{chunkSize}{The number of bytes read in each chunk.}
\item{...}{Not used.}
}
\value{
Returns an non-negative \code{\link[base]{integer}}.
}
\details{
Both compressed and non-compressed files are supported.
}
\author{Henrik Bengtsson}
\examples{
pathname <- system.file("NEWS.md", package="R.utils");
n <- countLines(pathname);
n2 <- length(readLines(pathname));
stopifnot(n == n2);
}
\references{
[1] Page \emph{Newline}, Wikipedia, July 2008.
\url{https://en.wikipedia.org/wiki/Newline}
}
\keyword{programming}
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