bagchi@eecs.umich.edu (Ranjan Bagchi) (06/25/91)
Potential dumb question... how is "mailbox format"
defined? I've got a program that I'd like to dump data
this way, but I can't find a definition, and havn't been
able to fake it effectively yet.
RTFM's welcome...but I"ve looked once already..
-rj
--
--------------------------------------------------------------------------------
Ranjan Bagchi - asleep...... | v,i,j,k,l,s,a[99];
bagchi@eecs.umich.edu | main() {
------------------------------- for(scanf("%d",&s);*a-s;v=a[j*=v]-a[i],k=i<s,j+=(v=j<s&&(!k&&!!printf(2+"\n\n%c"-(!l<<!j)," #Q"[l^v?(l^j)&1:2])&&++l||a[i]<s&&v&&v-i+j&&v+i-j))&&!(l%=s),v||(i==j?a[i+=k]=0:++a[i])>=s*k&&++a[--i]) ;
} /* Osovlanski and Nissenbaum */
--------------------------------------------------------------------------------berg@physik.tu-muenchen.de (Stephen R. van den Berg) (06/28/91)
The most common mailbox format (sendmail, smail or compatible environment)
is defined as follows:
Every occurrence of the following "Regular Expression" marks the beginning
of a new mail message:
\n\nFrom +[^\t\n ]+ +[^\n\t]
Any mailbox file should start with a line conforming too:
From +[^\t\n ]+ +[^\n\t]
No, I did not find this in the manual, I just figured this out by trial
and error from the /usr/ucb/mail program included with SunOS.
Many programs erroneously allow *any* line starting with 'From ' to mark
the start of a message (not even checking if the preceding line was empty
either).
--
Sincerely, berg@messua.informatik.rwth-aachen.de
Stephen R. van den Berg. berg@physik.tu-muenchen.de
"My name is Psmith, the P is not pronounced."mouse@thunder.mcrcim.mcgill.edu (der Mouse) (07/01/91)
In article <4426@rwthinf.UUCP>, berg@physik.tu-muenchen.de (Stephen R. van den Berg) writes: > The most common mailbox format (sendmail, smail or compatible > environment) Sendmail does not know the mailbox format. You can use sendmail perfectly well with a local mailer that uses some other format; just redefine whatever mailer is used by the rule(s) in S0 that do(es) local delivery. (Usually this mailer is called "local".) > is defined as follows: > Every occurrence of the following "Regular Expression" marks the > beginning of a new mail message: > \n\nFrom +[^\t\n ]+ +[^\n\t] > Any mailbox file should start with a line conforming too: > From +[^\t\n ]+ +[^\n\t] > No, I did not find this in the manual, I just figured this out by > trial and error from the /usr/ucb/mail program included with SunOS. In that case, you are hardly justified in saying that's how it's *defined*. At best that may be what Sun chose to implement. > Many programs erroneously allow *any* line starting with 'From ' to > mark the start of a message (not even checking if the preceding line > was empty either). This is not necessarily erroneous; absent a real spec, that's as valid a way to mark the start of a mail message as any other. There are probably UAs and local delivery agents in the world that *do* use that (ie, something matching "^From ") as the marker for the beginning of a message. der Mouse old: mcgill-vision!mouse new: mouse@larry.mcrcim.mcgill.edu