net.sf.saxon.style.XSLComment Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of Saxon-HE Show documentation

The XSLT and XQuery Processor

There is a newer version: 12.5

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2018-2023 Saxonica Limited
// 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.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

package net.sf.saxon.style;

import net.sf.saxon.expr.Expression;
import net.sf.saxon.expr.StringLiteral;
import net.sf.saxon.expr.instruct.Comment;
import net.sf.saxon.om.AttributeInfo;
import net.sf.saxon.om.NodeName;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.value.StringValue;

/**
 * An xsl:comment elements in the stylesheet. 

 */

public final class XSLComment extends XSLLeafNodeConstructor {

    @Override
    protected void prepareAttributes() {
        for (AttributeInfo att : attributes()){
            NodeName attName = att.getNodeName();
            String f = attName.getDisplayName();
            String value = att.getValue();
            if (f.equals("select")) {
                select = makeExpression(value, att);
            } else {
                checkUnknownAttribute(attName);
            }
        }
    }

    @Override
    public void validate(ComponentDeclaration decl) throws XPathException {
        select = typeCheck("select", select);
        super.validate(decl);
    }

    /**
     * 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
     */

    @Override
    protected String getErrorCodeForSelectPlusContent() {
        return "XTSE0940";
    }

    /*@NotNull*/
    @Override
    public Expression compile(Compilation exec, ComponentDeclaration decl) throws XPathException {
        Comment inst = new Comment();
        compileContent(exec, decl, inst, new StringLiteral(StringValue.SINGLE_SPACE));
        return inst;
    }

}