ap − parse addresses RFC 822−style /usr/new/lib/mh/ap ­[−form formatfile] ­[−format string] ­[−normalize] ­[−nonormalize] ­[−width columns] addrs ...  ­[−help]

DESCRIPTION

Ap is a program that parses addresses according to the ARPA Internet standard.  It also understands many non−standard formats.  It is useful for seeing how MH will interpret an address. 
 
The ap program treats each argument as one or more addresses, and prints those addresses out in the official 822−format.  Hence, it is usually best to enclose each argument in double−quotes for the shell. 
 
To override the output format used by ap, the ‘−format string’ or ‘−format file’ switches are used.  This permits individual fields of the address to be extracted with ease.  The string is simply a format stringand thefile is simply a format file.  See mh−format (5) for the details. 
 
In addition to the standard escapes, scan also recognizes the following additional escape:

escapesubstitution
errora diagnostic if the parse failed

 
If the ‘−normalize’ switch is given, ap will try to track down the official hostname of the address. 
 
Here is the default format string used by ap:
 

%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>
 
which says that if an error was detected, print the error, a ‘:’, and the address in error. Otherwise, output the 822−proper format of the address. ^$HOME/.mh_profile~^The user profile ^/usr/new/lib/mh/mtstailor~^tailor file None dp(8),
Standard for the Format of ARPA Internet Text Messages (aka RFC−822) ‘−format’ defaults as described above ‘−normalize’ ‘−width’ defaults to the width of the terminal None The argument to the ‘−format’ switch must be interpreted as a single token by the shell that invokes ap.  Therefore, one must usually place the argument to this switch inside double−quotes. 
 
On hosts where MH was configured with the BERK option, address parsing is not enabled. 

NEWS-OS Release 3.3