\documentclass[a4paper,notitlepage]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\newcommand{\strongemph}[1]{\textbf{#1}}
\newcommand{\litfmt}[1]{\texttt{#1}}
\title{underscore quoting tests}
\author{}
\date{}
\begin{document}
\maketitle
\tableofcontents

This should receive \emph{emphasis}
This \emph{might} not receive \emph{emphasis}
This \_ probably should receive \emph{emphasis}
Underscores \_f \emph{nested} b\_ and between\_words

Continuing \emph{multiple
lines} should work

\strongemph{Even now} it \emph{should
probably} work indeed

foobar \emph{empha} not\_empha \emph{can't}
foobar \emph{empha} not\_empha \emph{can't}

This is line: 20 in file: stdin

\begin{quotation}
In blockquote, how does an em dash
--- even a little one --- work at the
beginning of a line?  (This has nothing to do
with underscores.)

\end{quotation}
\end{document}
