/** Returns the next record in the master file */
public Record nextRecord() throws IOException {
String line;
MyStringTokenizer st;
if (included != null) {
Record rec = included.nextRecord();
if (rec != null) return rec;
included = null;
}
while (true) {
line = readExtendedLine(br);
if (line == null) return null;
if (line.length() == 0 || line.startsWith(";")) continue;
boolean space = line.startsWith(" ") || line.startsWith("\t");
st = new MyStringTokenizer(line);
String s = st.nextToken();
if (s.equals("$ORIGIN")) {
origin = parseOrigin(st);
continue;
}
if (s.equals("$TTL")) {
defaultTTL = parseTTL(st);
continue;
}
if (s.equals("$INCLUDE")) {
parseInclude(st);
/*
* If we continued, we wouldn't be looking in
* the new file. Recursing works better.
*/
return nextRecord();
} else if (s.charAt(0) == '$') throw new IOException("Invalid directive: " + s);
st.putBackToken(s);
return (last = parseRR(st, space, last, origin));
}
}
