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From: gregg@cbnewsc.ATT.COM (gregg.g.wonderly)
Newsgroups: comp.mail.mh
Subject: Re: mh-format questions
Message-ID: <5186@cbnewsc.ATT.COM>
Date: 1 Dec 89 21:31:33 GMT
References: <7131@portia.Stanford.EDU>
Organization: AT&T Bell Laboratories
Lines: 46

From article <7131@portia.Stanford.EDU>, by hodges@jessica.Stanford.EDU (Jeff Hodges):
> I'm trying to customize my replcomps file and am wontering what the
> following mh-format escapes are supposed to do (they don't seem to be
> documented in the man page)...

> 	lit
> 	void
> 	width

%(lit some-text) is one use for %(lit).  It appears to be in several format
files to cure a used to be NULL pointer bug that left the internal string
register, str, pointing at garbage.

%(void) is used to evaluate an expression.  The value of the expression
is then used for tests.  The difference between

	%(void(width))

and

	%(width)

is that the first lets you test the value while the second generates the
string representing the value in the output stream.  Look at the use
in the "scan.*" files in the MHETC directory for examples of this usage.

%(width) tells you how wide the output device really is.  This is only
useful for making use of a 132 column terminal vs a 80 column terminal
(or something along those lines).

> Additionally, does anyone successfully use the "mymbox" escape; if so, how?

%<(mymbox{from})%{to}%|%(friendly{from})%> is a pretty classic use of
%(mymbox).  This is again something like what is in the MHETC/scan*
format files.

> Finally, is there any way to determine if one's address appears in the
> "to" or "cc" field of a msg being replied to (note that there could be
> several addresses in these fields)?

%(mymbox{to}) tells you if you are the sole receipient of a message.
%(mymbox{cc}) tells you if you are one of several receipients of a message.

-- 
-----
gregg.g.wonderly@att.com   (AT&T bell laboratories)