/**
* Encode an address header, and perform folding if needed.
*
* @param sb The stringBuilder to write to
* @param headerName The RFC 2822 header name
* @param addresses the reformatted address substrings to encode.
*/
public void encodeHeaderAddresses(
StringBuilder sb, String headerName, ArrayList<Rfc822Token> addresses) {
/* TODO: Do we need to encode the addresses if they contain illegal characters?
* This depends of the outcome of errata 4176. The current spec. states to use UTF-8
* where possible, but the RFCs states to use US-ASCII for the headers - hence encoding
* would be needed to support non US-ASCII characters. But the MAP spec states not to
* use any encoding... */
int partLength, lineLength = 0;
lineLength += headerName.getBytes().length;
sb.append(headerName);
for (Rfc822Token address : addresses) {
partLength = address.toString().getBytes().length + 1;
// Add folding if needed
if (lineLength + partLength >= 998) // max line length in RFC2822
{
sb.append("\r\n "); // Append a FWS (folding whitespace)
lineLength = 0;
}
sb.append(address.toString()).append(";");
lineLength += partLength;
}
sb.append("\r\n");
}
