Method appendHex

CodenameOne/src/com/codename1/io/Util.java:1504–1536

(StringBuilder sbuf, char ch)

    }

    private static void appendHex(StringBuilder sbuf, char ch) {
        int firstLiteral = ch / 256;
        int secLiteral = ch % 256;
        if (firstLiteral == 0 && secLiteral < 127) {
            sbuf.append("%");
            String s = Integer.toHexString(secLiteral).toUpperCase();
            if (s.length() == 1) {
                sbuf.append("0");
            }
            sbuf.append(s);
            return;
        }
        if (ch <= 0x07ff) {
            // 2 literals unicode
            firstLiteral = 192 + (firstLiteral << 2) + (secLiteral >> 6);
            secLiteral = 128 + (secLiteral & 63);
            sbuf.append("%");
            sbuf.append(Integer.toHexString(firstLiteral).toUpperCase());
            sbuf.append("%");
            sbuf.append(Integer.toHexString(secLiteral).toUpperCase());
        } else {
            // 3 literals unicode
            int thirdLiteral = 128 + (secLiteral & 63);
            secLiteral = 128 + ((firstLiteral % 16) << 2) + (secLiteral >> 6);
            firstLiteral = 224 + (firstLiteral >> 4);
            sbuf.append("%");
            sbuf.append(Integer.toHexString(firstLiteral).toUpperCase());
            sbuf.append("%");
            sbuf.append(Integer.toHexString(secLiteral).toUpperCase());
            sbuf.append("%");
            sbuf.append(Integer.toHexString(thirdLiteral).toUpperCase());
        }
    }

    /// Converts a relative url e.g.: /myfile.html to an absolute url
    ///