/// <summary>
/// Returns parsed IMAP SEARCH <b>HEADER (field-name) (string)</b> key.
/// </summary>
/// <param name="r">String reader.</param>
/// <returns>Returns parsed IMAP SEARCH <b>HEADER (field-name) (string)</b> key.</returns>
/// <exception cref="ArgumentNullException">Is raised when <b>r</b> is null reference.</exception>
/// <exception cref="ParseException">Is raised when parsing fails.</exception>
internal static IMAP_Search_Key_Header Parse(StringReader r)
{
if (r == null)
{
throw new ArgumentNullException("r");
}
string word = r.ReadWord();
if (!string.Equals(word, "HEADER", StringComparison.InvariantCultureIgnoreCase))
{
throw new ParseException("Parse error: Not a SEARCH 'HEADER' key.");
}
string fieldName = IMAP_Utils.ReadString(r);
if (fieldName == null)
{
throw new ParseException("Parse error: Invalid 'HEADER' field-name value.");
}
string value = IMAP_Utils.ReadString(r);
if (value == null)
{
throw new ParseException("Parse error: Invalid 'HEADER' string value.");
}
return(new IMAP_Search_Key_Header(fieldName, value));
}
/// <summary>
/// Returns parsed IMAP SEARCH <b>FROM (string)</b> key.
/// </summary>
/// <param name="r">String reader.</param>
/// <returns>Returns parsed IMAP SEARCH <b>FROM (string)</b> key.</returns>
/// <exception cref="ArgumentNullException">Is raised when <b>r</b> is null reference.</exception>
/// <exception cref="ParseException">Is raised when parsing fails.</exception>
internal static IMAP_Search_Key_From Parse(StringReader r)
{
if (r == null)
{
throw new ArgumentNullException("r");
}
string word = r.ReadWord();
if (!string.Equals(word, "FROM", StringComparison.InvariantCultureIgnoreCase))
{
throw new ParseException("Parse error: Not a SEARCH 'FROM' key.");
}
string value = IMAP_Utils.ReadString(r);
if (value == null)
{
throw new ParseException("Parse error: Invalid 'FROM' value.");
}
return(new IMAP_Search_Key_From(value));
}
