private boolean tryRead(String delim) throws SAXException, IOException {
        return tryRead(delim.toCharArray());
    }
Return true if we can read the expected string.
<p>
This is simply a convenience method.
<p>
Note that the string will be removed from the input stream on success,
but will be put back on failure. Do not attempt to read the string again
if the method succeeds.
<p>
This method will push back a character rather than an array whenever
possible (probably the majority of cases).

@param delim
           The string that should appear next.
@return true if the string was successfully read, or false if it was not.
@see #tryRead (char)
src/nu/validator/gnu/xml/aelfred2/XmlParser.java