diff -r c82a45f48bfc -r 5365ef60707e cws/cw04.tex
--- a/cws/cw04.tex	Fri Oct 13 23:49:34 2023 +0100
+++ b/cws/cw04.tex	Sat Oct 21 09:09:09 2023 +0100
@@ -237,8 +237,8 @@
 
 \subsection*{Question 4}
 
-Extend the lexer and parser to add a \texttt{break} keyword.  Modify
-the compiler such that when a \texttt{break}-statement is encountered
+Extend the lexer and parser to add a \textcolor{codepurple}{\pcode{break}} keyword.  Modify
+the compiler (including lexer and parser) such that when a \textcolor{codepurple}{\texttt{break}}-statement is encountered
 the code should jump out of the ``enclosing'' for-loop, or in case it
 is not inside a for-loop to the end of the program. For example the
 program
@@ -246,11 +246,13 @@
 \begin{center}
 \begin{minipage}{12cm}
 \begin{lstlisting}[language=While, numbers=none]
+// should print 0 .. 10    
 for i := 0 upto 10 do {
   write i;
   write "\n"
 };
 
+// should print 0 .. 4  
 for i := 0 upto 10 do {
   if i > 4 then break else skip;
   write i;