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\name{print_help}
\alias{print_help}
\title{Printing an usage message from an OptionParser object}
\usage{
print_help(object)
}
\arguments{
\item{object}{A \code{OptionParser} instance.}
}
\value{
\code{print_help} uses the \code{cat} function to print
out a usage message. It returns \code{invisible(NULL)}.
}
\description{
\code{print_help} print an usage message from an
OptionParser object, usually called by \code{parse_args}
when it encounters a help option.
}
\author{
Trevor Davis.
}
\references{
Python's \code{optparse} library, which inspired this
package, is described here:
\url{http://docs.python.org/library/optparse.html}
}
\seealso{
\code{{parse_args}} \code{{OptionParser}}
}
|
