package org.pdf4j.saxon.style;
import org.pdf4j.saxon.charcode.UTF16;
import org.pdf4j.saxon.expr.Expression;
import org.pdf4j.saxon.instruct.Executable;
import org.pdf4j.saxon.om.AttributeCollection;
import org.pdf4j.saxon.om.StandardNames;
import org.pdf4j.saxon.trans.XPathException;
/**
* An xsl:output-character element in the stylesheet. <br>
*/
public class XSLOutputCharacter extends StyleElement {
private int codepoint = -1;
// the character to be substituted, as a Unicode codepoint (may be > 65535)
private String replacementString = null;
public void prepareAttributes() throws XPathException {
AttributeCollection atts = getAttributeList();
for (int a=0; a<atts.getLength(); a++) {
int nc = atts.getNameCode(a);
String f = getNamePool().getClarkName(nc);
if (f==StandardNames.CHARACTER) {
String s = atts.getValue(a);
switch (s.length()) {
case 0:
compileError("character attribute must not be zero-length", "XTSE0020");
codepoint = 256; // for error recovery
break;
case 1:
codepoint = s.charAt(0);
break;
case 2:
if (UTF16.isHighSurrogate(s.charAt(0)) &&
UTF16.isLowSurrogate(s.charAt(1))) {
codepoint = UTF16.combinePair(s.charAt(0), s.charAt(1));
} else {
compileError("character attribute must be a single XML character", "XTSE0020");
codepoint = 256; // for error recovery
}
break;
default:
compileError("character attribute must be a single XML character", "XTSE0020");
codepoint = 256; // for error recovery
}
} else if (f==StandardNames.STRING) {
replacementString = atts.getValue(a);
} else {
checkUnknownAttribute(nc);
}
}
if (codepoint==-1) {
reportAbsence("character");
return;
}
if (replacementString==null) {
reportAbsence("string");
return;
}
}
public void validate() throws XPathException {
if (!(getParent() instanceof XSLCharacterMap)) {
compileError("xsl:output-character may appear only as a child of xsl:character-map", "XTSE0010");
};
}
public Expression compile(Executable exec) throws XPathException {
return null;
}
public int getCodePoint() {
return codepoint;
}
public String getReplacementString() {
return replacementString;
}
}
//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
// you may not use this file except in compliance with the License. You may obtain a copy of the
// License at http://www.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is Michael H. Kay
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): none.
//