\HeaderA{testit}{An Rd Regression Test}{testit}
\aliasB{\{}{testit}{.Rlbrace.}
%
\begin{Usage}
\begin{verbatim}
\x \y %{}

foo(x, y, ...)
\end{verbatim}
\end{Usage}
%
\begin{Arguments}
\begin{ldescription}
\item[\code{x}, \code{y}] 
combined arguments, in multiple Rd lines

paragraph

\item[\code{...}] description of \dots: \ldots
\end{ldescription}
\end{Arguments}
%
\begin{Details}
Included
conditional content.
End(\AsIs{\texttt{\#ifdef}}).

Escaped backslash \code{\bsl{}x}.

\code{\%\{\}}

\LinkA{a link}{a link} and some to known destinations:
\code{\LinkA{weighted.mean}{weighted.mean}}, \LinkA{dito}{dito},
\code{\LinkA{\{}{Paren}}, \LinkB{\env{R\_HOME}}{R.Rul.HOME}.

var in \var{text}.

\code{foo(\var{x}, \var{y})}.

Preformatted:\begin{alltt}
  Escaped backslash \bsl{}x.

  %\{\}

  var in \bsl{}var\{text\}.
  
  foo(\bsl{}var\{x\}, \bsl{}var\{y\}).
  
  From gap: pedtodot.Rd -- n=split(m,par,"\bsl{}034") 
  \end{alltt}

\end{Details}
%
\begin{Value}
[NULL]\\{}\\{}\dots
\end{Value}
%
\begin{Section}{\AsIs{\texttt{\bsl{}Sexpr}}}
Yihui Xie's example:
\begin{description}
\item[def] ghi
\end{description}


--
\AsIs{\texttt{
> cat("\bsl{}noutput\bsl{}n")
output
}}
--

\AsIs{\texttt{
> x<-007
}}

Georgi Boshnakov's example of generated paragraphs:
a

b

c

\AsIs{\texttt{
[1] "a\bsl{}n    b\bsl{}n    c"
}}

R (2025).
``\eqn{t}{}.''
\end{Section}
%
\begin{Section}{\AsIs{\texttt{\bsl{}tabular}}}

\Tabular{crl}{
1 & \Rhref{https://example.org/a\&b\#c}{linked text in \AsIs{\texttt{\bsl{}tabular}}}
& \url{https://example.org/a\&b\#c}\\{}
2 & 2nd-column entry with \emph{line break}
in Rd source& third
column\\{}
--3-- & third
row& 
}
\end{Section}
%
\begin{Section}{\AsIs{\texttt{\bsl{}eqn}}}
This should not start a new paragraph:
\eqn{\frac{1}{n-1}}{}.
\end{Section}
%
\begin{Section}{\AsIs{\texttt{\bsl{}deqn}}}
1-arg form, centered also in text conversion:
\deqn{
    \theta = (\mu^*, \sigma^2, \rho)
  }{}
2-arg form, where the text version is collapsed before centering
(for the sake of existing Rd files):
\deqn{E = mc^2}{}

With AMS extension (R \eqn{\ge}{} 4.2.2),
where the text version spans more than 3 source lines (5 in fact)
and is thus output as-is in R \eqn{\ge}{} 4.4.0:
\deqn{
    f(x) = \begin{cases}
      0 & \text{if } x < 0, \\
      1 & \text{if } x \ge 0.
    \end{cases}
  }{}
\end{Section}
%
\begin{Examples}
\begin{ExampleCode}
\x
%{}

## Not run: stop("doomed to fail")

foo(x,
    y)
\end{ExampleCode}
\end{Examples}
