.\"	@(MHWARNING).\" @(#)$Id: dp.rf,v 1.7 1992/05/12 22:23:34 jromine Exp $.SC DP 8.NAdp \- parse dates 822-style.SY@(MHETCPATH)/dp\%[\-form\ formatfile]\%[\-format\ string]\%[\-width\ columns]dates\ ...\%[\-help].DE\fIDp\fR is a program that parses dates according to the ARPA Internetstandard.It also understands many non\-standard formats,such as those produced by TOPS\-20 sites and some UNIX sites using\fIctime\fR\0(3).It is useful for seeing how \fIMH\fR will interpret a date.The \fIdp\fR program treats each argument as a single date,and prints the date out in the official 822\-format.Hence, it is usually best to enclose each argument in double\-quotes for theshell.To override the output format used by \fIdp\fR,the `\-format\ string' or `\-format\ file' switches are used.This permits individual fields of the address to be extracted with ease.The string is simply a format stringand thefile is simply a format file.See \fImh\-format\fR\0(5) for the details.Here is the default format string used by \fIdp\fR:.nf.ti +.5i%<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>.fiwhich says that if an error was detected, print the error, a `:',and the date in error.Otherwise, output the 822\-proper format of the date..Fi^$HOME/\&.mh\(ruprofile~^The user profile.PrNone.Saap(8).br\fIStandard for the Format of ARPA Internet Text Messages\fR (aka RFC\-822).De`\-format' default as described above.Ds`\-width' default to the width of the terminal.CoNone.BuThe argument to the `\-format' switch must be interpreted as a single tokenby the shell that invokes \fIdp\fR.Therefore,one must usually place the argument to this switch inside double\-quotes..En