Review

class Parser {
    private Node xmlInitializer() throws IOException
    {
        int tt = ts.getFirstXMLToken();
        int lineno = ts.getLineno();
        int charno = ts.getCharno();
        if (tt != Token.XML && tt != Token.XMLEND) {
            reportError("msg.syntax");
            return null;
        }

        /* Make a NEW node to append to. */
        Node pnXML = nf.createLeaf(Token.NEW, lineno, charno);

        String xml = ts.getString();
        lineno = ts.getLineno();
        charno = ts.getCharno();
        boolean fAnonymous = xml.trim().startsWith("<>");

        Node pn = nf.createName(fAnonymous ? "XMLList" : "XML", lineno, charno);
        nf.addChildToBack(pnXML, pn);

        pn = null;
        Node expr;
        for (;;tt = ts.getNextXMLToken()) {
            switch (tt) {
            case Token.XML:
                xml = ts.getString();
                lineno = ts.getLineno();
                charno = ts.getCharno();
                decompiler.addName(xml);
                mustMatchToken(Token.LC, "msg.syntax");
                decompiler.addToken(Token.LC);
                expr = (peekToken() == Token.RC)
                    ? nf.createString("", lineno, charno)
                    : expr(false);
                mustMatchToken(Token.RC, "msg.syntax");
                decompiler.addToken(Token.RC);
                if (pn == null) {
                    pn = nf.createString(xml, lineno, charno);
                } else {
                    pn = nf.createBinary(Token.ADD, pn,
                        nf.createString(xml, lineno, charno), lineno, charno);
                }
                int nodeType;
                if (ts.isXMLAttribute()) {
                    nodeType = Token.ESCXMLATTR;
                } else {
                    nodeType = Token.ESCXMLTEXT;
                }
                expr = nf.createUnary(nodeType, expr, lineno, charno);
                pn = nf.createBinary(Token.ADD, pn, expr, lineno, charno);
                break;
            case Token.XMLEND:
                xml = ts.getString();
                lineno = ts.getLineno();
                charno = ts.getCharno();
                decompiler.addName(xml);
                if (pn == null) {
                    pn = nf.createString(xml, lineno, charno);
                } else {
                    pn = nf.createBinary(Token.ADD, pn,
                        nf.createString(xml, lineno, charno), lineno, charno);
                }

                nf.addChildToBack(pnXML, pn);
                return pnXML;
            default:
                reportError("msg.syntax");
                return null;
            }
        }
    }

}