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<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?> |
<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?> |
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<page name="examples"> |
<page name="examples"> |
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<title>Code examples</title> |
<title>Advanced examples</title> |
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<banner>Code examples</banner> |
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<left> |
<left> |
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<p>This page presents some simple CDuce programs.</p> |
<p>This page presents some sample CDuce programs.</p> |
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<boxes-toc/> |
<boxes-toc/> |
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<p>See also:</p> |
<p>See also:</p> |
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<local-links href="index,proto,memento"/> |
<local-links href="index,proto,memento"/> |
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</left> |
</left> |
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<box title="Advanced examples" link="start"> |
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This page presents some advanced programming examples in CDuce. <b |
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style="color:#FF0080">If you never saw CDuce programs before, this is the wrong |
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page</b> to start with. Rather follow our <local href="tutorial"/>, or test the |
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simple examples in our <a href="/cgi-bin/cduce">on line demo</a>. |
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</box> |
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<box title="Our canonical example" link="sort"> |
<box title="Our canonical example" link="sort"> |
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<p> |
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The example below is the one we use to demonstrate |
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how overloaded functions can avoid duplicating code. |
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Without overloaded functions, we would need to define |
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two mutually recursive functions in order to type-check |
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the transformation. Here, two constraints |
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in the (highlighted) function interface |
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can express precisely the behaviour of the function. |
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A detailed explanation of the code can be found <a href="tutorial_overloading.html#canonical">here</a>. |
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</p> |
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<sample> |
<sample> |
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<include-verbatim file="overloading.cd"/> |
<include-verbatim file="overloading.cd"/> |
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</sample> |
</sample> |
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</box> |
</box> |
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<box title="The script that generates this site" link="site"> |
<box title="The script that generates this site" link="site"> |
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<sample> |
<p> |
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The script below is one of the longest CDuce application ever written |
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;-) It is used to produce all the pages of this web site (except |
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the <local href="proto">web prototype</local> which is |
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a CGI script written in OCaml). CDuce type system ensures |
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that produced pages are valid w.r.t XHTML 1.0 Strict. |
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</p> |
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<p> |
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This program features both XML and text-content manipulation. |
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It also demonstrates the use of non-XML internal data structures. |
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Here, a tree represents internally the site |
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structure, and a list represents the path from the |
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root to the current page (in order to display the "You're here" line). |
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</p> |
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<sample highlight="false"> |
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<include-verbatim file="site.cd"/> |
<include-verbatim file="site.cd"/> |
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</sample> |
</sample> |
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</box> |
</box> |
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