+(3) 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
+ 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