[metapost] metapost and groff

[Doug McIlroy]

I apologize for misspelling the URL.  It is
tug.org/tutorials/mp/grdemo-doc.pdf

The labels are not Latex or Tex; they are for the old-testament
universe--eqn, troff, groff.  Option -T in this mpost (0.993)
promises, and demonstrably tries, to handle them.
I did one better than mpost --help; I read the man page.

Doug McIlroy

-------------------------------------

Date: Tue, 25 Oct 2011 17:42:12 -0400
From: Doug McIlroy <doug at cs.dartmouth.edu>
To: metapost at tug.org
Subject: [metapost] metapost and groff

I am having trouble resurrecting some 20-year-old MetaPost
code that contains eqn formulas in labels.  As far as I
can tell mpost -T doesn't work as described in
www.tug.org/tutorial/mp/grdemo-doc.pdf. I find
information posted to this list by Werner Lembert and
others in 2005 and 2006 that seems to confirm my
difficulty, but nothing since.

Before I bore anybody with details, let me ask,
am I basically out of luck?

------------------------------

Date: Wed, 26 Oct 2011 17:02:31 +0100
From: Karel <akk64 at quick.cz>
To: Doug McIlroy <doug at cs.dartmouth.edu>
Cc: metapost at tug.org
Subject: Re: [metapost] metapost and groff

Sorry, trying to look at
www.tug.org/tutorial/mp/grdemo-doc.pdf
I got:
The requested URL /tutorial/mp/grdemo-doc.pdf was not found on 
this server

Can you explain what version of mpost are you using? TeXlive 
version has no -T option. I can only guess from `eqn' that you 
have some LaTeX labels in your source, so perhaps you need to tell 
mpost that it should use LaTeX when compiling TeX labels?
Also, try mpost --help first.