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4.6.8 Legacy Features
---------------------

'groff' 'ms' retains some legacy features solely to support formatting
of historical documents; contemporary ones should not use them because
they can render poorly.  See the 'groff_char(7)' man page.

AT&T accent mark strings
........................

AT&T 'ms' defined accent mark strings as follows.

 -- String: \*[']
     Apply acute accent to subsequent glyph.

 -- String: \*[`]
     Apply grave accent to subsequent glyph.

 -- String: \*[:]
     Apply dieresis (umlaut) to subsequent glyph.

 -- String: \*[^]
     Apply circumflex accent to subsequent glyph.

 -- String: \*[~]
     Apply tilde accent to subsequent glyph.

 -- String: \*[C]
     Apply caron to subsequent glyph.

 -- String: \*[,]
     Apply cedilla to subsequent glyph.

Berkeley accent mark and glyph strings
......................................

Berkeley 'ms' offered an 'AM' macro; calling it redefined the AT&T
accent mark strings (except for '\*C'), applied them to the _preceding_
glyph, and defined additional strings, some for spacing glyphs.

 -- Macro: .AM
     Enable alternative accent mark and glyph-producing strings.

 -- String: \*[']
     Apply acute accent to preceding glyph.

 -- String: \*[`]
     Apply grave accent to preceding glyph.

 -- String: \*[:]
     Apply dieresis (umlaut) to preceding glyph.

 -- String: \*[^]
     Apply circumflex accent to preceding glyph.

 -- String: \*[~]
     Apply tilde accent to preceding glyph.

 -- String: \*[,]
     Apply cedilla to preceding glyph.

 -- String: \*[/]
     Apply stroke (slash) to preceding glyph.

 -- String: \*[v]
     Apply caron to preceding glyph.

 -- String: \*[_]
     Apply macron to preceding glyph.

 -- String: \*[.]
     Apply underdot to preceding glyph.

 -- String: \*[o]
     Apply ring accent to preceding glyph.

 -- String: \*[?]
     Interpolate inverted question mark.

 -- String: \*[!]
     Interpolate inverted exclamation mark.

 -- String: \*[8]
     Interpolate small letter sharp s.

 -- String: \*[q]
     Interpolate small letter o with hook accent (ogonek).

 -- String: \*[3]
     Interpolate small letter yogh.

 -- String: \*[d-]
     Interpolate small letter eth.

 -- String: \*[D-]
     Interpolate capital letter eth.

 -- String: \*[th]
     Interpolate small letter thorn.

 -- String: \*[Th]
     Interpolate capital letter thorn.

 -- String: \*[ae]
     Interpolate small æ ligature.

 -- String: \*[Ae]
     Interpolate capital Æ ligature.

 -- String: \*[oe]
     Interpolate small oe ligature.

 -- String: \*[OE]
     Interpolate capital OE ligature.