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<?xml version="1.0"?>
<?cocoon-process type="xsp"?>
<!-- Written by Ricardo Rocha <rrocha@plenix.org> -->
<!-- A quick'n'dirty XML colorizer -->
<xsp:page language="java" xmlns:xsp="http://www.apache.org/1999/XSP/Core">
<xsp:structure>
<xsp:include>java.net.*</xsp:include>
</xsp:structure>
<xsp:logic><![CDATA[
private static final String ATTR_NAME_COLOR = "darkblue";
private static final String ATTR_VALUE_COLOR = "navy";
private static final String COMMENT_COLOR = "gray";
private static final String DELIMITER_COLOR = "blue";
private static final String ELEMENT_COLOR = "navy";
private static final String ENTITY_REF_COLOR = "navy";
private static final String PI_COLOR = "darkred";
private static final String TEXT_COLOR = "black";
private static final String CUSTOM_ELEMENT_COLOR = "green";
private static final String XSL_ELEMENT_COLOR = "purple";
private static final String XSP_ELEMENT_COLOR = "green";
private static final String XSP_TEXT_COLOR = "red";
protected Element colorize(Node node, Document factory) {
Element element = factory.createElement("pre");
DocumentFragment fragment = factory.createDocumentFragment();
element.appendChild(doColorize(node, factory, 0, TEXT_COLOR));
return element;
}
protected static DocumentFragment
doColorize(Node node, Document factory, int level, String textColor)
{
Element result = null;
DocumentFragment fragment = factory.createDocumentFragment();
switch (node.getNodeType()) {
case Node.CDATA_SECTION_NODE:
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
result.appendChild(factory.createTextNode("<![CDATA["));
fragment.appendChild(result);
result = factory.createElement("font");
result.setAttribute("color", textColor);
result.appendChild(factory.createTextNode(node.getNodeValue()));
fragment.appendChild(result);
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
// I know the thing below is ugly, but man, nexted CDATA are a pain in the ass!
result.appendChild(factory.createTextNode("]]]]>><![CDATA["));
fragment.appendChild(result);
break;
case Node.ELEMENT_NODE: {
Element element = (Element) node;
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
result.appendChild(factory.createTextNode("<"));
fragment.appendChild(result);
String tagColor = ELEMENT_COLOR;
String tagName = element.getTagName();
if (tagName.startsWith("xsp:")) {
tagColor = XSP_ELEMENT_COLOR;
} else if (tagName.startsWith("xsl:")) {
tagColor = XSL_ELEMENT_COLOR;
} else if (tagName.indexOf(':') >= 0) {
tagColor = CUSTOM_ELEMENT_COLOR;
}
result = factory.createElement("font");
result.setAttribute("color", tagColor);
result.appendChild(factory.createTextNode(tagName));
fragment.appendChild(result);
NamedNodeMap attributes = element.getAttributes();
int attributeCount = attributes.getLength();
for (int i = 0; i < attributeCount; i++) {
Attr attribute = (Attr) attributes.item(i);
result = factory.createElement("font");
result.setAttribute("color", ATTR_NAME_COLOR);
result.appendChild(
factory.createTextNode(" " + attribute.getName() + "=")
);
fragment.appendChild(result);
result = factory.createElement("font");
result.setAttribute("color", ATTR_VALUE_COLOR);
result.appendChild(
factory.createTextNode("\"" + attribute.getValue() + "\"")
);
fragment.appendChild(result);
}
NodeList nodeList = element.getChildNodes();
int childCount = nodeList.getLength();
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
result.appendChild(
factory.createTextNode((childCount == 0 ? "/" : "") + ">")
);
fragment.appendChild(result);
if (tagName.startsWith("xsp:")) {
textColor = XSP_TEXT_COLOR;
} else {
textColor = TEXT_COLOR;
}
result = factory.createElement("font");
result.setAttribute("color", textColor);
for (int i = 0; i < childCount; i++) {
result.appendChild(
doColorize(nodeList.item(i), factory, level + 1, textColor)
);
}
fragment.appendChild(result);
if (childCount > 0) {
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
result.appendChild(factory.createTextNode("</"));
fragment.appendChild(result);
result = factory.createElement("font");
result.setAttribute("color", tagColor);
result.appendChild(factory.createTextNode(tagName));
fragment.appendChild(result);
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
result.appendChild(factory.createTextNode(">"));
fragment.appendChild(result);
}
break;
}
case Node.DOCUMENT_NODE:
case Node.DOCUMENT_FRAGMENT_NODE: {
NodeList nodeList = node.getChildNodes();
int childCount = nodeList.getLength();
for (int i = 0; i < childCount; i++) {
fragment.appendChild(
doColorize(nodeList.item(i), factory, level + 1, textColor)
);
}
break;
}
case Node.COMMENT_NODE:
result = factory.createElement("font");
result.setAttribute("color", COMMENT_COLOR);
result.appendChild(
factory.createTextNode(
"<!-- " + node.getNodeValue() + " -->\n"
)
);
fragment.appendChild(result);
break;
case Node.PROCESSING_INSTRUCTION_NODE:
ProcessingInstruction pi = (ProcessingInstruction) node;
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
result.appendChild(factory.createTextNode("<?"));
fragment.appendChild(result);
result = factory.createElement("font");
result.setAttribute("color", PI_COLOR);
result.appendChild(factory.createTextNode(pi.getTarget() + " " + pi.getData()));
fragment.appendChild(result);
result = factory.createElement("font");
result.setAttribute("color", DELIMITER_COLOR);
result.appendChild(factory.createTextNode("?>\n"));
fragment.appendChild(result);
break;
case Node.ENTITY_REFERENCE_NODE:
result = factory.createElement("font");
result.setAttribute("color", ENTITY_REF_COLOR);
result.appendChild(
factory.createTextNode("<" + node.getNodeValue() + ";")
);
fragment.appendChild(result);
break;
case Node.TEXT_NODE:
fragment.appendChild(factory.createTextNode(node.getNodeValue()));
break;
default:
break;
}
return fragment;
}
]]></xsp:logic>
<html>
<head>
<title>Source Code</title>
</head>
<body>
<xsp:logic>
String filename = request.getParameter("filename");
String resourcename = request.getParameter("url");
if (filename != null) {
String filepath = XSPUtil.relativeFilename(filename, request, (ServletContext) context);
<h3 style="color:navy; text-align: center">
<xsp:expr>filename</xsp:expr>
</h3>
<xsp:content>
<xsp:expr>
this.colorize(
this.xspParser.parse(
new InputSource(
new FileReader(filepath)
)
), document
)
</xsp:expr>
</xsp:content>
} else if (resourcename != null) {
URL resource = new URL(resourcename);
<h3 style="color:navy; text-align: center">
<xsp:expr>resourcename</xsp:expr>
</h3>
<xsp:content>
<xsp:expr>
this.colorize(
this.xspParser.parse(
new InputSource(
resource.openStream()
)
), document
)
</xsp:expr>
</xsp:content>
} else {
<h3 style="color:navy; text-align: center">
Need <em>filename</em> or <em>url</em> parameters to work
</h3>
}
</xsp:logic>
</body>
</html>
</xsp:page>
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