DomainList parseRoute()

in dom/src/main/java/org/apache/james/mime4j/field/address/LenientAddressParser.java [87:127]

• 41 lines of code
• 12 McCabe index (conditional complexity)

    DomainList parseRoute(final ByteSequence buf, final ParserCursor cursor, final BitSet delimiters) {
        BitSet bitset = RawFieldParser.INIT_BITSET(COMMA, COLON);
        if (delimiters != null) {
            bitset.or(delimiters);
        }
        List<String> domains = null;
        for (;;) {
            this.parser.skipAllWhiteSpace(buf, cursor);
            if (cursor.atEnd()) {
                break;
            }
            int pos = cursor.getPos();
            int current = (char) (buf.byteAt(pos) & 0xff);
            if (current == AT) {
                cursor.updatePos(pos + 1);
            } else {
                break;
            }
            String s = parseDomain(buf, cursor, bitset);
            if (s != null && s.length() > 0) {
                if (domains == null) {
                    domains = new ArrayList<String>();
                }
                domains.add(s);
            }
            if (cursor.atEnd()) {
                break;
            }
            pos = cursor.getPos();
            current = (char) (buf.byteAt(pos) & 0xff);
            if (current == COMMA) {
                cursor.updatePos(pos + 1);
            } else if (current == COLON) {
                cursor.updatePos(pos + 1);
                break;
            } else {
                break;
            }
        }
        return domains != null ? new DomainList(domains) : null;
    }