Method encode

zap/src/main/java/org/apache/commons/httpclient/URI.java:1707–1717

Encodes URI string. This is a two mapping, one from original characters to octets, and subsequently a second from octets to URI characters: original character sequence->octet sequence->URI character sequence An escaped octet is encoded as a chara

(String original, BitSet allowed,
            String charset)

     */
        
    protected static char[] encode(String original, BitSet allowed,
            String charset) throws URIException {
        if (original == null) {
            throw new IllegalArgumentException("Original string may not be null");
        }
        if (allowed == null) {
            throw new IllegalArgumentException("Allowed bitset may not be null");
        }
        byte[] rawdata = URLCodec.encodeUrl(allowed, EncodingUtil.getBytes(original, charset));
        return EncodingUtil.getAsciiString(rawdata).toCharArray();
    }

    /**
     * Decodes URI encoded string.