File: groff.info,  Node: Missing Unix Version 7 ms Macros,  Prev: Differences_from_AT&T_ms.php">Differences from AT&T ms,  Up: Differences_from_AT&T_ms.php">Differences from AT&T ms

4.6.7.1 Unix Version 7 'ms' macros not implemented by 'groff' 'ms'
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Several macros described in the Unix Version 7 'ms' documentation are
unimplemented by 'groff' 'ms' because they are specific to the
requirements of documents produced internally by Bell Laboratories, some
of which also require a glyph for the Bell System logo that 'groff' does
not support.  These macros implemented several document type formats
('EG', 'IM', 'MF', 'MR', 'TM', 'TR'), were meaningful only in
conjunction with the use of certain document types ('AT', 'CS', 'CT',
'OK', 'SG'), stored the postal addresses of Bell Labs sites ('HO', 'IH',
'MH', 'PY', 'WH'), or lacked a stable definition over time ('UX').  To
compatibly render historical 'ms' documents using these macros, we
advise your documents to invoke the 'rm' request to remove any such
macros it uses and then define replacements with an authentically
typeset original at hand.(1)  (*note Missing Unix Version 7 ms
Macros-Footnote-1::) For informal purposes, a simple definition of 'UX'
should maintain the readability of the document's substance.

     .rm UX
     .ds UX Unix\"