[r2003-05-15 21:39:35 by cvscast] small modification tutorial Beppe

Original author: cvscast
Date: 2003-05-15 21:39:35+00:00

web/tutorial1.xml

@@ -99,6 +99,39 @@ let parents : ParentBook =
 
 </right>
 </two-columns>
+Note the strightforward correspondence between the two notations: instead of
+using an closing tag, we enclose the content of each element in square
+brackets. In CDuce square backets denote sequences, that is, heterogenoeus (ordered) lists
+of blank-separated elements.
+
+ To the purpose of the example we used different notations to denote
+strings as in CDuce <code>"xyz"</code>, <code> ['xyz']</code>, <code> ['x' 'y' 'z']</code>, 
+<code> [ 'xy' 'z' ]</code>, and <code> [ 'x' 'yz' ]</code> define the same string
+literal. Note also
+that the <code>"Pål André"</code> string is accepted as CDuce supports Unicode
+characters.
+</box>
+
+
+<box title="Loading XML files" link="t0.5">
+
+<p>
+The program on the right handside in the previous section starts by binding the
+variable <code>parents</code> to the XML document. It also specifies that
+parents has the type <a href="#t1"><code>ParentBook</code></a>: this is optional
+but it usually allows erlier detection of type errors. If the file XML on the
+lefthandside is stored in a file, say, <tt>parents.xml</tt> then the same
+binding can be obtained by loading the file as follows
+</p>
+<sample><![CDATA[
+    let parents : ParentBook  = {{load_xml}} "parents.xml"
+]]></sample> 
+<p>
+as <code>load_xml</code> converts and XML document stored into a file in the CDuce expression representing it.</p>
+
+
+TO BE WRITTEN
+
 
 </box>