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19c6fd1aee
Notes:
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=79848
@ -136,6 +136,27 @@
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. \}
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..
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.
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.\" BSD compatibility macros: .AT and .UC
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.
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.de1 AT
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. ds an-extra2 "7th Edition
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. if "\\$1"3" .ds an-extra2 "7th Edition
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. if "\\$1"4" .ds an-extra2 "System III
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. if "\\$1"5" \{\
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. ie "\\$2"" .ds an-extra2 "System V
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. el .ds an-extra2 "System V Release \\$2
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. \}
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..
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.
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.de1 UC
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. ds an-extra2 "3rd Berkeley Distribution
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. if "\\$1"3" .ds an-extra2 "3rd Berkeley Distribution
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. if "\\$1"4" .ds an-extra2 "4th Berkeley Distribution
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. if "\\$1"5" .ds an-extra2 "4.2 Berkeley Distribution
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. if "\\$1"6" .ds an-extra2 "4.3 Berkeley Distribution
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. if "\\$1"7" .ds an-extra2 "4.4 Berkeley Distribution
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..
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.
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.de1 DT
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. ta T .5i \" This sets tabs every .5 inches
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..
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@ -3483,7 +3483,25 @@ This list type generates multiple columns.
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The number of columns and the width of each column is determined by the
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arguments to the
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.Fl column
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list.
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list,
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.Aq Ar string1 ,
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.Aq Ar string2 ,
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etc.
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If
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.Aq Ar stringN
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starts with a
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.Ql .\&
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(dot) immediately followed by a valid
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.Nm \-mdoc
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macro name, interpret
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.Aq Ar stringN
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and use the width of the result.
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Otherwise, the width of
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.Aq Ar stringN
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(typeset with a fixed-width font) is taken as the
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.Ar N Ns th
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column width.
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.Pp
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Each
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.Ql .It
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argument is parsed to make a row, each column within the row is a separate
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@ -3493,7 +3511,7 @@ macro.
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.Pp
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The table:
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.
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.Bl -column -offset indent String Nroff Troff
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.Bl -column -offset indent ".Sy String" ".Sy Nroff" ".Sy Troff"
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.It Sy String Ta Sy Nroff Ta Sy Troff
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.It Li <= Ta <= Ta \*(<=
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.It Li >= Ta >= Ta \*(>=
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@ -3502,8 +3520,8 @@ The table:
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.
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was produced by:
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.
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.Bd -literal -offset indent
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\&.Bl -column -offset indent String Nroff Troff
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.Bd -literal
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\&.Bl -column -offset indent ".Sy String" ".Sy Nroff" ".Sy Troff"
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\&.It Sy String Ta Sy Nroff Ta Sy Troff
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\&.It Li <= Ta <= Ta \e*(<=
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\&.It Li >= Ta >= Ta \e*(>=
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@ -3517,47 +3535,13 @@ Other keywords:
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.Bl -tag -width ".Fl indent Ao Ar string Ac"
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.It Fl width Ao Ar string Ac
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If
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.Ao string Ac
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is a valid numeric expression
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.Pf ( Em with a scale indicator other than
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.Sq Em u ) ,
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use that value for indentation.
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The most useful scale indicators are
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.Sq m
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and
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.Sq n ,
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specifying the so-called
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.Em \&Em
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and
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.Em "En square" .
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This is approximately the width of the letter
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.Sq m
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resp.\& the letter
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.Sq n
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of the current font (for nroff output, both scale indicators give the same
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values).
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If
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.Ao string Ac
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isn't a numeric expression, it is tested whether it is an
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.Aq Ar string
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starts with a
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.Ql .\&
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(dot) immediately followed by a valid
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.Nm \-mdoc
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macro name, and the default offset value associated with this macro is used.
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Finally, if all tests fail,
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the width of
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.Ao string Ac
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(typeset with a fixed-width font) is taken as the offset.
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.Pp
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If a width is not specified for the tag list type, every time
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.Ql .It
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is invoked, an attempt is made to determine an appropriate width.
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If the first argument to
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.Ql .It
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is a callable macro, the default width for that macro will be used;
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otherwise, the default width of
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.Ql .No
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is used.
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.It Fl width Ao Ar string Ac
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Interpret
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.Ao string Ac
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macro name, interpret
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.Aq Ar string
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and use the width of the result.
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Almost all lists in this document use this option.
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.Pp
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@ -3583,10 +3567,10 @@ flag works in combination with a tag list.
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.El
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.Pp
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.
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Note that the current state of
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(Note that the current state of
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.Nm \-mdoc
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is saved before
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.Ao string Ac
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.Aq Ar string
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is interpreted; afterwards, all variables are restored again.
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However, boxes (used for enclosures) can't be saved in
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.Tn GNU
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@ -3595,13 +3579,53 @@ as a consequence, arguments must always be
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.Em balanced
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to avoid nasty errors.
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For example, do not write
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.Ql ".Ao string"
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.Ql ".Ao Ar string"
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but
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.Ql ".Ao string Xc"
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instead if you really need only an opening angle bracket.
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.Ql ".Ao Ar string Xc"
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instead if you really need only an opening angle bracket.)
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.Pp
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Otherwise, if
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.Aq Ar string
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is a valid numeric expression
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.Em ( with a scale indicator other than
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.Sq Em u ) ,
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use that value for indentation.
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The most useful scale indicators are
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.Sq m
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and
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.Sq n ,
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specifying the so-called
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.Em \&Em
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and
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.Em "En square" .
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This is approximately the width of the letter
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.Sq m
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resp.\& the letter
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.Sq n
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of the current font (for nroff output, both scale indicators give the same
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values).
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If
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.Aq Ar string
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isn't a numeric expression, it is tested whether it is an
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.Nm \-mdoc
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macro name, and the default width value associated with this macro is used.
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Finally, if all tests fail,
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the width of
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.Aq Ar string
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(typeset with a fixed-width font) is taken as the width.
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.Pp
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If a width is not specified for the tag list type, every time
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.Ql .It
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is invoked, an attempt is made to determine an appropriate width.
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If the first argument to
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.Ql .It
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is a callable macro, the default width for that macro will be used;
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otherwise, the default width of
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.Ql .No
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is used.
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.It Fl offset Ao Ar string Ac
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If
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.Ao string Ac
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.Aq Ar string
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is
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.Ar indent ,
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a default indent value (normally set to\~6n, similar to the value used in
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@ -3610,7 +3634,7 @@ or
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.Ql .Bd )
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is used.
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If
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.Ao string Ac
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.Aq Ar string
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is a valid numeric expression instead
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.Pf ( Em with a scale indicator other than
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.Sq Em u ) ,
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@ -3630,13 +3654,13 @@ resp.\& the letter
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of the current font (for nroff output, both scale indicators give the same
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values).
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If
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.Ao string Ac
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.Aq Ar string
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isn't a numeric expression, it is tested whether it is an
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.Nm \-mdoc
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macro name, and the default offset value associated with this macro is used.
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Finally, if all tests fail,
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the width of
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.Ao string Ac
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.Aq Ar string
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(typeset with a fixed-width font) is taken as the offset.
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.It Fl compact
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Suppress insertion of vertical space before the list and between list items.
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|
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