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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!ihnp4!gargoyle!mark
From: mark@gargoyle.UChicago.UUCP (Mark Turner)
Newsgroups: net.unix-wizards
Subject: Re: -ms accent bug; sloppy fix
Message-ID: <397@gargoyle.UChicago.UUCP>
Date: Wed, 3-Apr-85 00:03:54 EST
Article-I.D.: gargoyle.397
Posted: Wed Apr  3 00:03:54 1985
Date-Received: Wed, 3-Apr-85 07:56:13 EST
References: <> <> <> <>
Reply-To: mark@gargoyle.UUCP ( Turner)
Organization: U. Chicago - Computer Science
Lines: 34
Summary: 

In article <> mark@gargoyle.UUCP ( Turner) writes:
>Apparently, in 1983 the -ms macros were revised to
>include a .AM macro which, when placed at the head of
>a file to be formatted by nroff/troff, allowed one to use 
>various new accents and characters.  /usr/lib/tmac/tmac.s
>on our 4.2 system contains the lines
>.de AM
>.so \*(\\s.acc
>..
>meaning, I take it, read and use /usr/lib/ms/s.acc.
>Now, our /usr/lib/ms/s.acc contains the line
>
>.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
>
>This should mean that when one types \*(d- in a file sent through
>n/troff, n/troff understands it as a lower case "eth", a character in Old
>English.  The eth should look something like a partial-differential
>sign with a dash through the stem.  The problem is: this line causes
>troff to print the partial-differential-sign, and then backspace TWICE
>to print a dash, and then proceed.  It should only backspace ONCE.
>The result is: the dash occurs one character before it should, and
>the character that should succeed the eth is printed on top of the
>partial-differential sign.  I am too stupid to read the above code.
>Can anyone tell me how to alter it so that the partial-differential
>sign and the dash are overstruck?
>Reply to . . . ihnp4!gargoyle!mark

Since no one responded, I tried my own hand at it, and produced
a sloppy fix that works:

.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\ \h'.27m'\(hy\fP\v'.25m'\h'-.09m'\h'-\*(#H'

>
>