package client.net.sf.saxon.ce.style;
import client.net.sf.saxon.ce.expr.Expression;
import client.net.sf.saxon.ce.expr.StringLiteral;
import client.net.sf.saxon.ce.expr.instruct.Executable;
import client.net.sf.saxon.ce.expr.instruct.NamespaceConstructor;
import client.net.sf.saxon.ce.om.*;
import client.net.sf.saxon.ce.tree.iter.AxisIterator;
import client.net.sf.saxon.ce.trans.XPathException;
import client.net.sf.saxon.ce.type.Type;
import client.net.sf.saxon.ce.value.StringValue;
/**
* An xsl:namespace element in the stylesheet. (XSLT 2.0)
*/
public class XSLNamespace extends XSLLeafNodeConstructor {
Expression name;
public void prepareAttributes() throws XPathException {
name = prepareAttributesNameAndSelect();
}
public void validate(Declaration decl) throws XPathException {
name = typeCheck(name);
select = typeCheck(select);
int countChildren = 0;
NodeInfo firstChild = null;
AxisIterator kids = iterateAxis(Axis.CHILD);
while (true) {
NodeInfo child = (NodeInfo)kids.next();
if (child == null) {
break;
}
if (child instanceof XSLFallback) {
continue;
}
if (select != null) {
String errorCode = getErrorCodeForSelectPlusContent();
compileError("An " + getDisplayName() + " element with a select attribute must be empty", errorCode);
}
countChildren++;
if (firstChild == null) {
firstChild = child;
} else {
break;
}
}
if (select == null) {
if (countChildren == 0) {
// there are no child nodes and no select attribute
select = new StringLiteral(StringValue.EMPTY_STRING);
} else if (countChildren == 1) {
// there is exactly one child node
if (firstChild.getNodeKind() == Type.TEXT) {
// it is a text node: optimize for this case
select = new StringLiteral(firstChild.getStringValueCS());
}
}
}
}
/**
* Get the error code to be returned when the element has a select attribute but is not empty.
*
* @return the error code defined for this condition, for this particular instruction
*/
protected String getErrorCodeForSelectPlusContent() {
return "XTSE0910";
}
public Expression compile(Executable exec, Declaration decl) throws XPathException {
NamespaceConstructor inst = new NamespaceConstructor(name);
compileContent(exec, decl, inst, new StringLiteral(StringValue.SINGLE_SPACE));
return inst;
}
}
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is “Incompatible With Secondary Licenses”, as defined by the Mozilla Public License, v. 2.0.