Method readDelimString

app/src/main/java/com/sun/mail/iap/Response.java:264–277

Extract a string stopping at control characters or any character in delim.

(String delim)

     * character in delim.
     */
    private String readDelimString(String delim) {
	skipSpaces();

	if (index >= size) // already at end of response
	    return null;

	int b;
	int start = index;
	while (index < size && ((b = (((int)buffer[index])&0xff)) >= ' ') &&
	       delim.indexOf((char)b) < 0 && b != 0x7f)
	    index++;

	return toString(buffer, start, index);
    }

    /**
     * Read a string as an arbitrary sequence of characters,