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.Block;
import client.net.sf.saxon.ce.expr.instruct.Executable;
import client.net.sf.saxon.ce.expr.instruct.Message;
import client.net.sf.saxon.ce.om.AttributeCollection;
import client.net.sf.saxon.ce.om.Axis;
import client.net.sf.saxon.ce.om.StandardNames;
import client.net.sf.saxon.ce.value.Whitespace;
import client.net.sf.saxon.ce.trans.XPathException;
/**
* An xsl:message element in the stylesheet. <br>
*/
public final class XSLMessage extends StyleElement {
private Expression terminate = null;
private Expression select = null;
/**
* Determine whether this node is an instruction.
* @return true - it is an instruction
*/
public boolean isInstruction() {
return true;
}
/**
* Determine whether this type of element is allowed to contain a template-body
* @return true: yes, it may contain a template-body
*/
public boolean mayContainSequenceConstructor() {
return true;
}
public void prepareAttributes() throws XPathException {
String terminateAtt = null;
String selectAtt = null;
AttributeCollection atts = getAttributeList();
for (int a=0; a<atts.getLength(); a++) {
int nc = atts.getNameCode(a);
String f = getNamePool().getClarkName(nc);
if (f == StandardNames.TERMINATE) {
terminateAtt = Whitespace.trim(atts.getValue(a));
} else if (f == StandardNames.SELECT) {
selectAtt = atts.getValue(a);
} else {
checkUnknownAttribute(nc);
}
}
if (selectAtt!=null) {
select = makeExpression(selectAtt);
}
if (terminateAtt==null) {
terminateAtt = "no";
}
terminate = makeAttributeValueTemplate(terminateAtt);
if (terminate instanceof StringLiteral) {
String t = ((StringLiteral)terminate).getStringValue();
if (!(t.equals("yes") || t.equals("no"))) {
compileError("terminate must be 'yes' or 'no'", "XTSE0020");
}
}
}
public void validate(Declaration decl) throws XPathException {
select = typeCheck(select);
terminate = typeCheck(terminate);
}
public Expression compile(Executable exec, Declaration decl) throws XPathException {
Expression b = compileSequenceConstructor(exec, decl, iterateAxis(Axis.CHILD));
if (b != null) {
if (select == null) {
select = b;
} else {
select = Block.makeBlock(select, b);
select.setSourceLocator(this);
}
}
if (select == null) {
select = new StringLiteral("xsl:message (no content)");
}
Message inst = new Message(select, terminate);
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.