\Header{parse}{Parse Expressions}
\keyword{file}{parse}
\keyword{programming}{parse}
\keyword{connection}{parse}
\begin{Description}\relax
\code{parse} returns the parsed but unevaluated expressions in a
list.  Each element of the list is of mode \code{expression}.\end{Description}
\begin{Usage}
\begin{verbatim}
parse(file = "", n = NULL, text = NULL, prompt = "?", white = FALSE)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{file}] a connection, or a character string giving the name of a
file or a URL to read the expressions from.
If \code{file} is \code{""} and \code{text} is missing or \code{NULL}
then input is taken from the console.
\item[\code{n}] the number of statements to parse.  If \code{n} is negative
the file is parsed in its entirety.
\item[\code{text}] character. The text to parse, quoted.
\item[\code{prompt}] the prompt to print when parsing from the keyboard.
\code{NULL} means to use \R's prompt, \code{options("prompt")[[1]]}.
\item[\code{white}] if \code{TRUE} then any white space separates expressions
otherwise only newlines or semicolons do.
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
All versions of \R{} accept input from a connection with end of line
marked by LF (as used on Unix), CRLF (as used on DOS/Windows)
or CR (as used on Mac).  The final line can be incomplete, that
is missing the final EOL marker.\end{Details}
\begin{SeeAlso}\relax
\code{\Link{scan}}, \code{\Link{source}}, \code{\Link{eval}},
\code{\Link{deparse}}.\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
cat("x <- c(1,4)\n  x ^ 3 -10 ; outer(1:7,5:9)\n", file="xyz.Rdmped")
# parse 3 statements from the file "xyz.Rdmped"
parse(file = "xyz.Rdmped", n = 3)
unlink("xyz.Rdmped")
\end{ExampleCode}
\end{Examples}

