line defines the start of expected output from the server. If what is
received does not match, the client bombs out with an error message.
-(2) If a line starts with three plus signs followed by a space, the rest of the
+(2) If a line begins with three question marks and an asterisk, the server
+ is expected to close the connection.
+
+(3) If a line begins with four question marks, the rest of the line defines
+ the start of one or more possible output lines from the server. When it
+ matches, the client silently repeats the comparison using the next server
+ line. When the match fails, the client silently proceeds to the next script
+ line with the then-current server output unconsumed.
+
+(4) If a line starts with three plus signs followed by a space, the rest of the
line specifies a number of seconds to sleep for before proceeding.
-(3) If a line begins with three '>' characters and a space, the rest of the
+(5) If a line begins with three '>' characters and a space, the rest of the
line is input to be sent to the server. Backslash escaping is done as
described below, but no trailing "\r\n" is sent.
-(4) If a line begin with three '<' characters and a space, the rest of the
+(6) If a line begin with three '<' characters and a space, the rest of the
line is a filename; the content of the file is inserted intto the script
at this point.
-(5) Otherwise, the line is an input line line that is sent to the server. Any
+(7) Otherwise, the line is an input line line that is sent to the server. Any
occurrences of \r and \n in the line are turned into carriage return and
linefeed, respectively. This is used for testing PIPELINING.
Any sequences of \x followed by two hex digits are converted to the equvalent