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ContentHandler
interface.
See:
Description
Class Summary | |
DemoTagHandler | Handles two custom tags: <toc/> and
<footnote> . |
The demo package provides an example implementation of the
ContentHandler
interface.
To test DemoTagHandler
, you may use
the following JSP. Call it demo-test.jsp
.
<%@page import="com.arsdigita.templating.html.HTMLParserException" %> <%@page import="com.arsdigita.templating.html.demo.DemoTagHandler" %> <%@page import="com.arsdigita.util.StringUtils" %> <html> <head> <title>DemoTagHandler</title> </head> <body> <h1>DemoTagHandler</h1> <% String text = request.getParameter("text"); String renderedText = ""; String error = null; if ( text == null ) { text = ""; } else { try { renderedText = DemoTagHandler.getExtrapolatedDocument(text); } catch (HTMLParserException ex) { error = ex.hasRootCause() ? ex.getRootCause().getMessage() : ex.getMessage(); if ( error != null ) { error = StringUtils.quoteHtml(error); } } } %> <form action="demo-test.jsp" method="POST"> <textarea name="text" cols="60" rows="20"><%= text %></textarea> <br/> <input type="submit" name="submit" value=" Post "> </form> <hr size="1" width="67%" align="center"> <% if ( error == null ) { out.println(renderedText); } else { %> <p>An error has occurred:</p> <blockquote style="color: FireBrick;"> <%= error %> </blockquote> <% } %> </body> </html>
To test the tag handler, copy and paste the following text into the submission form, and post it.
<toc/> <h1>Introduction</h1> <h2>What is Truth?</h2> <p>We've bandied about the term truth,<footnote>Strictly speaking, this is not true.</footnote> and we've mentioned that certain operators return a true or false value. Before we go any further, we really ought to explain exactly what we mean by that. </p> <h1>Conclusion</h1> <h2>More Footnotes</h2> <p>Here's another footnote<footnote>The last one.</footnote>. This pretty much wraps it up.</p>
The result of the processed submission should look like so:
Introduction
What is Truth?
We've bandied about the term truth,1 and we've mentioned that certain operators return a true or false value. Before we go any further, we really ought to explain exactly what we mean by that.
Conclusion
More Footnotes
Here's another footnote2. This pretty much wraps it up.
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