Paul Fox <p...@foxharp.boston.ma.us> writes:
>n...@dad.org wrote:
>> >I think the simplest thing to do would be to write a custom postproc
>> >and use it to interrogate the draft (using scan(1)) to make sure it was
>> >the way you want.  Like if the To: line was blank, exit with a sensible
>> >error message.  If you were happy with it, call the real post.
>> >
>> >I've attached the sample postproc I put in the nmh contrib directory;
>> >it's job is to change the switches to post depending on the from line,
>> >but you could use it to see if there's something in the To: header.
>>
>> Would you be willing to tell me how, in such a script, I could detect the
>> presence or absence of a specific header, say "Exception: norm"? (I don't
>> intend or want to enter the currently raging header debate. I'm just asking a
>> specific technical question.)
>
>i think ken would do it with scan(1), but he's one of the few people in
>the world that can write mh-format code off the top of his head.  ;-)
>
>i'd use sed:
>
>draftfile=...
>exception_header=$(sed -n -e '/^Exception:/p' -e '/^$/q' < $draftfile)
>if [ "$exception_header" ]
>then
>.

Except that it would find the string "Exception:" at the beginning of of any
line in the body of the message.



    Norman Shapiro

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