/**
* Get the next value. The value can be wrapped in quotes. The value can be empty.
*
* @param x A JSONTokener of the source text.
* @return The value string, or null if empty.
* @throws JSONException if the quoted string is badly formed.
*/
private static String getValue(JSONTokener x) throws JSONException {
char c;
do {
c = x.next();
} while (c <= ' ' && c != 0);
switch (c) {
case 0:
return null;
case '"':
case '\'':
return x.nextString(c);
case ',':
x.back();
return "";
default:
x.back();
return x.nextTo(',');
}
}
