[Drop the idea of writing a pattern interpreter.
Bryan O'Sullivan <bos@serpentine.com>**20070619080042
 Instead, pose it as an exercise.
] {
hunk ./en/ch07-globs-and-regexps.xml 23
-    library.  We'll then write an interpreter for the pattern language
-    directly, so that we can avoid the regular expression library.
-    Along the way, we'll talk a little about writing portable code in
-    Haskell.</para>
+    library. Along the way, we'll talk a little about writing portable
+    code, good API design, and constructing code from small building
+    blocks.</para>
hunk ./en/ch07-globs-and-regexps.xml 990
+
+  <sect1>
+    <title>Exercises</title>
+    <qandaset>
+      <qandaentry>
+	<question>
+	  <para>Glob patterns are simple enough to interpret that it's
+	    easy to write a matcher directly in Haskell, rather than
+	    going through the regexp machinery.  Give it a try.</para>
+	</question>
+      </qandaentry>
+    </qandaset>
+  </sect1>
}