Customize 'description' environment so that \item style can replace d…

…irect use of \textbf

chapters/synchronous.tex

@@ -277,8 +277,7 @@ \subsection{Argument Restrictions (Component Expression)}\doublelabel{argument-r
 not present for Modelica functions. To define the restrictions, the
 following term is defined:
 \begin{description}
-\item{\textbf{Component expression}:}
-\par
+\item[Component expression:]
 A Component Reference which is an Expression, i.e. does not refer to
 models or blocks with equations. It is an instance of a (a) base type,
 (b) derived type, (c) record, (d) an array of such an instance (a-c),
@@ -296,16 +295,14 @@ \subsection{Argument Restrictions (Component Expression)}\doublelabel{argument-r
 
 % This should ideally be a set of definitions instead
 \begin{description}
-\item{The input argument is a \textbf{component expression}:}
-\par
+\item[The input argument is a \emph{component expression}:]
   The meaning is that the input argument when calling the operator must
   be a \emph{component expression}.
   \begin{nonnormative}
   The reason for this restriction is that the start value of the input argument is returned before the first tick of the clock of the input argument and this is not
   possible for a general expression.
   \end{nonnormative}
   \begin{example}
-  \end{example}
 \begin{lstlisting}[language=modelica]
   Real u1;
   Real u2[4];
@@ -319,8 +316,8 @@ \subsection{Argument Restrictions (Component Expression)}\doublelabel{argument-r
   y5 = previous(2*u);   // error (general expression, no Component Expression)
   y6 = previous(R);     // error (component, no Component Expression)
 \end{lstlisting}
-\item{The input argument is a \textbf{parameter expression}:}
-\par
+  \end{example}
+\item[The input argument is a \emph{parameter expression}:]
   The meaning is that the input argument when calling the operator must
   have parameter variability, that is the argument must depend directly
   or indirectly only on parameters, constants or literals, see
@@ -338,8 +335,7 @@ \subsection{Argument Restrictions (Component Expression)}\doublelabel{argument-r
   y3 = subSample(u, factor=3*u);     // error (general expression)
 \end{lstlisting}
   \end{example}
-\item{The input argument is an \textbf{expression}:}
-\par
+\item[The input argument is an \emph{expression}:]
   There is no restriction on the input argument when calling the
   operator. This notation is used to emphasis when a standard function
   call is used (is an \emph{expression}), instead of restricting the input

preamble.tex

@@ -71,6 +71,7 @@
 \usepackage{longtable}
 \usepackage{multirow} % for multirow entries in tables
 \usepackage{listings}
+\usepackage{enumitem}
 \usepackage{color}
 \usepackage[table]{xcolor}
 %\def\doublelabel#1{\label{#1}\hypertarget{#1}{}}
@@ -289,6 +290,14 @@
 \def\paragraphautorefname{section}
 \def\subparagraphautorefname{section}
 
+% Make all description lists break the line after each key.
+\setlist[description]{
+  style=nextline,
+  labelwidth=0pt,
+  leftmargin=15pt,
+  itemindent=\dimexpr-5pt-\labelsep\relax,
+}
+
 \title{
 \ifpdf
 \begin{center}