Name

ap − parse addresses RFC 822-style

Syntax

/usr/lib/mh/ap [ −form file ] [ −format string ] [ −help ] [ −[no]normalize ] [ −width columns ] addrs ... 

Description

The ap program 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 in the official RFC 822 format. Hence, it is usually best to enclose each argument in double quotes (") for the shell.

In addition to the standard escapes, scan also recognizes the additional escape error, which is a diagnostic that is returned if the parse failed. 

Options

−form fileOverrides the default output format of ap. The output is formatted according to the instructions in the specified file. This must be a format file; see mh-format(.).

−format string
Overrides the default output format of ap. The output is formatted according to the instructions in the specified string. This must be a format string; see mh-format(.).

The argument to the −format option must be interpreted as a single token by the shell that invokes ap. Therefore, you should usually place the argument to this option inside double quotes (").

−helpPrints a list of the valid options to this command. 

−normalize

−nonormalize
Tells ap to try to find the official host name of the address. This is the default behavior. It can be suppressed using the −nonormalize option. 

−width columns
Specifies the width of the screen in columns.

The defaults for this command are as follows:

−normalize
−width defaults to the width of the terminal

Restrictions

On systems where MH is configured with the BERK option, address parsing is not enabled. 

Examples

This is the default format string used by ap:

%<{error}%{error}: %{text}%|%(proper{text})%>

If an error was detected, this string instructs ap to print the error, a colon (:), and the address that is in error.  Otherwise, output the proper RFC 822 format of the address. 

Files

$HOME/.mh_profile
User profile.

/usr/lib/mh/mtstailor
System customization file.

See Also

mh-format(5mh), dp(8mh)
Standard for the Format of ARPA Internet Text Messages (RFC 822)