Align formatting of grammar listings

chapters/equations.tex

@@ -92,8 +92,8 @@ \subsection{For-Equations -- Repetitive Equation Structures}\label{for-equations
 The syntax of a \lstinline!for!-equation\index{for@\robustinline{for}!equation}\index{loop@\robustinline{loop}!for-equation@\robustinline{for}-equation} is as follows:
 \begin{lstlisting}[language=grammar]
 for for-indices loop
-   { equation ";" }
-   end for ";"
+  { equation ";" }
+end for ";"
 \end{lstlisting}
 
 A \lstinline!for!-equation may optionally use several iterators (\lstinline[language=grammar]!for-indices!)\index{in@\robustinline{in}!for-equation@\robustinline{for}-equation}, see \cref{nested-for-loops-and-reduction-expressions-with-multiple-iterators} for more information:
@@ -171,11 +171,12 @@ \subsection{If-Equations}\label{if-equations}
 The \lstinline!if!-equations\index{if@\robustinline{if}!equation}\index{then@\robustinline{then}!if-equation@\robustinline{if}-equation}\index{else@\robustinline{else}!if-equation@\robustinline{if}-equation}\index{elseif@\robustinline{elseif}!if-equation@\robustinline{if}-equation} have the following syntax:
 \begin{lstlisting}[language=grammar]
 if expression then
-   { equation ";" }
+  { equation ";" }
 { elseif expression then
-   { equation ";" }    }
+  { equation ";" }
+}
 [ else
-   { equation ";" }
+  { equation ";" }
 ]
 end if ";"
 \end{lstlisting}
@@ -199,9 +200,10 @@ \subsection{When-Equations}\label{when-equations}
 The \lstinline!when!-equations\index{when@\robustinline{when}!equation}\index{then@\robustinline{then}!when-equation@\robustinline{when}-equation}\index{elsewhen@\robustinline{elsewhen}!when-equation@\robustinline{when}-equation} have the following syntax:
 \begin{lstlisting}[language=grammar]
 when expression then
-   { equation ";" }
+  { equation ";" }
 { elsewhen expression then
-   { equation ";" } }
+  { equation ";" }
+}
 end when ";"
 \end{lstlisting}
 

chapters/statements.tex

@@ -349,12 +349,12 @@ \subsection{If-Statement}\label{if-statement}
 \begin{lstlisting}[language=grammar]
 if expression then
   { statement ";" }
-  { elseif expression then
-    { statement ";" }
-  }
-  [ else
-    { statement ";" }
-  ]
+{ elseif expression then
+  { statement ";" }
+}
+[ else
+  { statement ";" }
+]
 end if;
 \end{lstlisting}
 
@@ -371,8 +371,9 @@ \subsection{When-Statements}\label{when-statements}
 \begin{lstlisting}[language=grammar]
 when expression then
   { statement ";" }
-  { elsewhen expression then
-  { statement ";" } }
+{ elsewhen expression then
+  { statement ";" }
+}
 end when
 \end{lstlisting}
 

chapters/syntax.tex

@@ -317,7 +317,7 @@ \subsection{Equations}\label{equations1}
 
 while-statement :
    while expression loop
-   { statement ";" }
+     { statement ";" }
    end while
 
 when-equation :