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Diff for /mandoc/mdoc.7 between version 1.39 and 1.54

version 1.39, 2009/07/12 15:32:26 version 1.54, 2009/07/27 12:35:54
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 .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN  .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"  .\"
 .Dd $Mdocdate$  .Dd $Mdocdate$
 .Dt MDOC 7  .Dt MDOC 7
 .Os  .Os
 .\" SECTION  .\" SECTION---------------------------------------------
 .Sh NAME  .Sh NAME
 .Nm mdoc  .Nm mdoc
 .Nd mdoc language reference  .Nd mdoc language reference
 .\" SECTION  .\" SECTION---------------------------------------------
 .Sh DESCRIPTION  .Sh DESCRIPTION
 The  The
 .Nm mdoc  .Nm mdoc
 language is used to format  language is used to format
 .Bx  .Bx
 .Ux  .Ux
 manuals.  In this reference document, we describe the syntax and  manuals.  In this reference document, we describe its syntax, structure,
 structure of the  and usage.  Our reference implementation is
 .Nm  
 language.  Our reference implementation is  
 .Xr mandoc 1 .  .Xr mandoc 1 .
 The  The
 .Sx COMPATIBILITY  .Sx COMPATIBILITY
 section describes compatibility with  section describes compatibility with
 .Xr groff 1 .  .Xr groff 1 .
 .\" PARAGRAPH  .\" PARAGRAPH------------
 .Pp  .Pp
 An  An
 .Nm  .Nm
 document follows simple rules:  lines beginning with the control  document follows simple rules:  lines beginning with the control
 character  character
 .Sq \.  .Sq \.
 are parsed for macros.  Other lines are interpreted within the scope of  are parsed for macros.  Other lines are interpreted within the scope of
 prior macros:  prior macros:
Line 50  prior macros:
Line 48  prior macros:
 \&.Sh Macro lines change control state.  \&.Sh Macro lines change control state.
 Other lines are interpreted within the current state.  Other lines are interpreted within the current state.
 .Ed  .Ed
 .\" SECTION  .\" SECTION---------------------------------------------
 .Sh INPUT ENCODING  .Sh LANGUAGE SYNTAX
 .Nm  .Nm
 documents may contain only graphable 7-bit ASCII characters, the space  documents may contain only graphable 7-bit ASCII characters, the space
 character  character, and, in certain circumstances, the tab character.  All
 .Sq \  ,  manuals must have
 and, in certain circumstances, the tab character  .Ux
 .Sq \et .  line terminators.
 All manuals must have  .\" SUB-SECTION----------------------
 .Sq \en  
 line termination.  
 .Pp  
 The only time a blank line is acceptable is within  
 the context of  
 .Sq \&.Bd \-literal  
 or  
 .Sq \&.Bd \-unfilled .  
 .Pp  
 Tab characters  
 .Pq \et  
 are only acceptable when delimiting  
 .Sq \&.Bl \-column  
 and in  
 .Sq \&.Bd \-literal  
 or  
 .Sq \&.Bd \-unfilled  
 contexts.  
 .\" SUB-SECTION  
 .Ss Comments  .Ss Comments
 Anything following a  Text following a
 .Sq \e"  .Sq \e" ,
 delimiter is considered a comment (unless the  whether in a macro or free-form text line, is ignored to the end of
 .Sq \e  line.  A macro line with only a control character and comment escape,
 itself has been escaped) and is ignored to the end of line.  .Sq \&.\e" ,
 Furthermore, a macro line with only a control character  is also ignored.
 .Sq \. ,  .\" SUB-SECTION----------------------
 optionally followed by whitespace, is ignored.  
 .\" SUB-SECTION  
 .Ss Reserved Characters  .Ss Reserved Characters
 Within a macro line, the following characters are reserved:  Within a macro line, the following characters are reserved:
 .Bl -tag -width Ds -offset indent -compact  .Bl -tag -width Ds -offset indent -compact
Line 110  Within a macro line, the following characters are rese
Line 87  Within a macro line, the following characters are rese
 .It \&?  .It \&?
 .Pq question  .Pq question
 .It \&!  .It \&!
 .Pq exclamation  .Pq exclamation
 .It \&|  .It \&|
 .Pq vertical bar  .Pq vertical bar
 .El  .El
 .\" PARAGRAPH  .\" PARAGRAPH------------
 .Pp  .Pp
 Use of reserved characters is described in  Use of reserved characters is described in
 .Sx Closure .  .Sx MACRO SYNTAX .
 For general non-reserved use, characters must either be escaped with a  For general use in macro lines, these characters must either be escaped
 non-breaking space  with a non-breaking space
 .Pq Sq \e&  .Pq Sq \e&
 or, if applicable, an appropriate escape-sequence used.  or, if applicable, an appropriate escape sequence used.
 .\" SUB-SECTION  .\" SUB-SECTION----------------------
 .Ss Special Characters  .Ss Special Characters
 Special character sequences begin with the escape character  Special characters may occur in both macro and free-form lines.
   Sequences begin with the escape character
 .Sq \e  .Sq \e
 followed by either an open-parenthesis  followed by either an open-parenthesis
 .Sq \&(  .Sq \&(
 for two-character sequences; an open-bracket  for two-character sequences; an open-bracket
 .Sq \&[  .Sq \&[
 for n-character sequences (terminated at a close-bracket  for n-character sequences (terminated at a close-bracket
 .Sq \&] ) ;  .Sq \&] ) ;
 or a single one-character sequence.  or a single one-character sequence.  See
 .Pp  .Xr mandoc_char 7
 Characters may alternatively be escaped by a slash-asterisk,  for a complete list.  Examples include
 .Sq \e* ,  .Sq \e(em
 with the same combinations as described above.  .Pq em-dash
 .Pp  and
 Terms may also be text-decorated using the  .Sq \ee
   .Pq back-slash .
   .\" SUB-SECTION----------------------
   .Ss Text Decoration
   Terms may be text-decorated using the
 .Sq \ef  .Sq \ef
 escape followed by a text-decoration letter: B (bold), I, (italic), or P  escape followed by an indicator: B (bold), I, (italic), or P and R
 and R (Roman, or reset).  This form is not recommended.  (Roman, or reset).  This form is not recommended for
 .\" SUB-SECTION  .Nm ,
 .Ss Whitespace  which encourages semantic, not presentation, annotation.
 Unless in literal mode or specifically escaped, consecutive blocks of  .\" SUB-SECTION----------------------
 whitespace are pruned from input.  These are later re-added, if  .Ss Predefined Strings
 applicable, by a front-end utility such as  Historically,
 .Xr mandoc 1 .  .Xr groff 1
 .\" SECTION  also defined a set of package-specific
 .Sh STRUCTURE  .Dq predefined strings ,
 Each  which, like
 .Nm  .Sx Special Characters ,
 document must begin with the document prologue, containing, in order,  demark special output characters and strings by way of input codes.
 .Sq \&.Dd ,  Predefined strings are escaped with the slash-asterisk,
 .Sq \&.Dt ,  .Sq \e* :
   single-character
   .Sq \e*X ,
   two-character
   .Sq \e*(XX ,
   and N-character
   .Sq \e*[N] .
   See
   .Xr mandoc_char 7
   for a complete list.  Examples include
   .Sq \e*(Am
   .Pq ampersand
 and  and
 .Sq \&.Os .  .Sq \e*(Ba
 Following these, the document body must begin with the NAME section  .Pq vertical bar .
 containing at least one  .\" SUB-SECTION----------------------
 .Sq \&.Nm  .Ss Whitespace
 followed by a  In non-literal free-form lines, consecutive blocks of whitespace are
 .Sq \&.Nd  pruned from input and added later in the output filter, if applicable:
 macro.  .Bd -literal -offset indent
   These     spaces   are    pruned       from    input.
   \&.Bd \-literal
   These         are              not.
   \&.Ed
   .Ed
   .\" PARAGRAPH------------
 .Pp  .Pp
 At least one free-form or macro line must follow this prologue.  In macro lines, whitespace delimits arguments and is discarded.  If
 .\"  arguments are quoted, whitespace within the quotes is retained.
 .Ss Classification  .\" PARAGRAPH------------
 Macros are classified by their scope rules.  Some macros are allowed to  
 deviate from their classifications to preserve backward-compatibility  
 with old macro combinations still found in the manual corpus.  These are  
 specifically noted on a per-macro basis.  
 .\" SUB-SECTION  
 .Ss Scope  
 .Bl -inset  
 .\" LIST-ITEM  
 .It Em Block  
 macros enclose other block macros, in-line macros or text, and  
 may span multiple lines.  
 .Bl -inset -offset indent  
 .\" LIST-ITEM  
 .It Em Full-block  
 macros always span multiple lines.  They consist of zero or  
 more  
 .Qq heads ,  
 subsequent macros or text on the same line following invocation; an  
 optional  
 .Qq body ,  
 which spans subsequent lines of text or macros; and an optional  
 .Qq tail ,  
 macros or text on the same line following closure.  
 .\" LIST-ITEM  
 .It Em Partial-block  
 macros may span multiple lines.  They consists of a optional  
 .Qq head ,  
 text immediately following invocation; always a  
 .Qq body ,  
 text or macros following the head on the same and subsequent lines; and  
 optionally a  
 .Qq tail ,  
 text immediately following closure.  
 .\" LIST-ITEM  
 .It Em In-line  
 macros may only enclose text and span at most a single line.  
 .El  
 .El  
 .\" SUB-SECTION  
 .Ss Closure  
 Closure of a macro's scope depends first on its classification, then  
 on whether it's parsable.  In this table,  
 .Sq BFE  
 refers to block full-explicit and so on.  
 .\" PARAGRAPH  
 .Pp  .Pp
 .Bl -tag -width 12n -offset indent -compact  Blank lines are only permitted within literal contexts, as are lines
 .It BPE , BFE  containing only whitespace.  Tab characters are only acceptable when
 corresponding explicit closure macro  delimiting
 .It BFI  .Sq \&Bl \-column
 end-of-file or a corresponding implicit closure macro  or when in a literal context.
 .It BPI  .\" SUB-SECTION----------------------
 end-of-line (body may be closed by >0 space-separated  .Ss Quotation
 .Sx Reserved Characters ,  Macro arguments may be quoted with a double-quote to group
 although block scope will still be open)  space-delimited terms or to retain blocks of whitespace.  A quoted
 .It INL  argument begins with a double-quote preceded by whitespace.  The next
 end-of-line  double-quote not pair-wise adjacent to another double-quote terminates
 .El  the literal, regardless of surrounding whitespace.
 .\" PARAGRAPH  .\" PARAGRAPH------------
 .Pp  .Pp
 If a macro (block or in-line) is parsable, it may also be closed out by  This produces tokens
 one of the following scenarios (unless specifically noted otherwise):  .Sq a" ,
 .\" PARAGRAPH  .Sq b c ,
 .Pp  .Sq de ,
 .Bl -dash -offset indent -compact  and
 .It  .Sq fg" .
 a sequence of >0 space-separated  Note that any quoted term, be it argument or macro, is indiscriminately
 .Sx Reserved Characters ,  considered literal text.  Thus, the following produces
 .It  .Sq \&Em a :
 another macro,  
 .It  
 end-of-line, or  
 .It  
 completion of a set number of arguments.  
 .El  
 .\" PARAGRAPH  
 .Pp  
 If >0 space-separated  
 .Sx Reserved Characters  
 are followed by non-reserved characters, the behaviour differs per  
 macro.  In general, scope of the macro is closed and re-opened:  
 subsequent tokens are interpreted as if the scope had just been opened.  
 In other circumstances, scope is simply closed out.  
 .\" SECTION  
 .Sh SYNTAX  
 Macros are two or three characters in length.  The syntax of macro  
 invocation depends on its classification.  
 .Qq \-arg  
 refers to the macro arguments (which may contain zero or more values).  
 In these illustrations,  
 .Sq \&.Yo  
 opens the scope of a macro, and if specified,  
 .Sq \&.Yc  
 closes it out (closure may be implicit at end-of-line or end-of-file).  
 .\" PARAGRAPH  
 .Pp  
 Block full-explicit (may contain head, body, tail).  
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBhead...\(rB  \&.Em "Em a"
 \(lBbody...\(rB  
 \&.Yc \(lBtail...\(rB  
 .Ed  .Ed
 .\" PARAGRAPH  .\" PARAGRAPH------------
 .Pp  .Pp
 Block full-implicit (may contain zero or more heads, body, no tail).  In free-form mode, quotes are regarded as opaque text.
   .\" SECTION---------------------------------------------
   .Sh MANUAL STRUCTURE
   Each
   .Nm
   document must begin with a document prologue, containing, in order,
   .Sq \&Dd ,
   .Sq \&Dt ,
   and
   .Sq \&Os ,
   then the NAME section containing at least one
   .Sq \&Nm
   followed by
   .Sq \&Nd :
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBhead... \(lBTa head...\(rB\(rB  \&.Dd $\&Mdocdate$
 \(lBbody...\(rB  \&.Dt mdoc 7
 \&.Yc  \&.Os
   \&.Sh NAME
   \&.Nm mdoc
   \&.Nd mdoc language reference
 .Ed  .Ed
 .\" PARAGRAPH  .\" PARAGRAPH------------
 .Pp  .Pp
 Block partial-explicit (may contain head, multi-line body, tail).  Subsequent SYNOPSIS and DESCRIPTION sections are strongly encouraged,
 .Bd -literal -offset indent  but non-compulsory.
 \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBhead...\(rB  .\" SECTION---------------------------------------------
 \(lBbody...\(rB  .Sh MACRO SYNTAX
 \&.Yc \(lBtail...\(rB  Every line beginning with the control character
   .Sq \.
 \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBhead...\(rB \  is processed for macros, two- or three-character sequences.
 \(lBbody...\(rB \&Yc \(lBtail...\(rB  .\" PARAGRAPH------------
 .Ed  
 .\" PARAGRAPH  
 .Pp  .Pp
 Block partial-implicit (no head, body, no tail).  Note that the body  The syntax of a macro depends on its classification.  In this section,
 section may be followed by zero or more  .Sq \-arg
 .Sx Reserved Words .  refers to macro arguments, which may be followed by zero or more
 These are in the block scope, but not in the body scope.  .Sq parm
 .Bd -literal -offset indent  parameters;
 \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBbody...\(rB \(lBreserved...\(rB  .Sq \&Yo
 .Ed  opens the scope of a macro; and if specified,
 .\" PARAGRAPH  .Sq \&Yc
   closes it out.
   .\" PARAGRAPH------------
 .Pp  .Pp
 In-lines have \(>=0 scoped arguments.  The
   .Em Callable
   column indicates that the macro may be called subsequent to the initial
   line-macro.  The
   .Em Parsable
   column indicates whether the macro may be followed by further
   (ostensibly callable) macros.  The
   .Em Scope
   column, if applicable, describes closure rules.
   .\" SUB-SECTION----------------------
   .Ss Block full-explicit
   Multi-line scope closed by an explicit closing macro.  All macros
   contains bodies; only
   .Pq Sq \&Bf
   contains a head.
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.Yy \(lB\-arg \(lBval...\(rB\(rB \(lBargs...\(rB  \&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead...\(rB
   \(lBbody...\(rB
 \&.Yy \(lB\-arg \(lBval...\(rB\(rB arg0 arg1 argN  \&.Yc
 .Ed  .Ed
 .\" SECTION  .\" PARAGRAPH------------
 .Sh MACROS  .Pp
 This section contains a complete list of all  .Bl -column -compact -offset indent "MacroX" "CallableX" "ParsableX" "closed by XXX"
 .Nm  .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Scope
 macros, arranged by classification.  A  .It \&Bd     Ta    \&No     Ta    \&No     Ta    closed by \&Ed
 .Qq callable  .It \&Bf     Ta    \&No     Ta    \&No     Ta    closed by \&Ef
 macro is invoked subsequent to the initial macro-line macro.  A  .It \&Bk     Ta    \&No     Ta    \&No     Ta    closed by \&Ek
 .Qq parsable  .It \&Bl     Ta    \&No     Ta    \&No     Ta    closed by \&El
 macro may be followed by further (ostensibly callable) macros.  .It \&Ed     Ta    \&No     Ta    \&No     Ta    opened by \&Bd
 .\" SUB-SECTION  .It \&Ef     Ta    \&No     Ta    \&No     Ta    opened by \&Bf
   .It \&Ek     Ta    \&No     Ta    \&No     Ta    opened by \&Bk
   .It \&El     Ta    \&No     Ta    \&No     Ta    opened by \&Bl
   .El
   .\" SUB-SECTION----------------------
 .Ss Block full-implicit  .Ss Block full-implicit
 The head of these macros follows invocation; the body is the content of  Multi-line scope closed by end-of-file or implicitly by another macro.
 subsequent lines prior to closure.  None of these macros have tails;  All macros have bodies; some
 some  
 .Po  .Po
 .Sq \&.It \-bullet ,  .Sq \&It \-bullet ,
 .Sq \-hyphen ,  .Sq \-hyphen ,
 .Sq \-dash ,  .Sq \-dash ,
 .Sq \-enum ,  .Sq \-enum ,
 .Sq \-item  .Sq \-item
 .Pc  .Pc
 don't have heads.  don't have heads, while
   .Sq \&It \-column
   may have multiple heads.
   .Bd -literal -offset indent
   \&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead... \(lBTa head...\(rB\(rB
   \(lBbody...\(rB
   .Ed
   .\" PARAGRAPH------------
 .Pp  .Pp
 .Bl -column -compact -offset indent "MacroX" "CallableX" "ParsableX" "Closing"  .Bl -column -compact -offset indent "MacroX" "CallableX" "ParsableX" "closed by XXXXXXXXXXX"
 .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Closing  .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Scope
 .It \&.Sh    Ta    \&No    Ta    \&No    Ta    \&.Sh  .It \&It     Ta    \&No     Ta    Yes      Ta    closed by \&It, \&El
 .It \&.Ss    Ta    \&No    Ta    \&No    Ta    \&.Sh, \&.Ss  .It \&Nd     Ta    \&No     Ta    \&No     Ta    closed by \&Sh
 .It \&.It    Ta    \&No    Ta    Yes     Ta    \&.It, \&.El  .It \&Sh     Ta    \&No     Ta    \&No     Ta    closed by \&Sh
   .It \&Ss     Ta    \&No     Ta    \&No     Ta    closed by \&Sh, \&Ss
 .El  .El
 .\" SUB-SECTION  .\" SUB-SECTION----------------------
 .Ss Block full-explicit  .Ss Block partial-explicit
 None of these macros are callable or parsed.  The last column indicates  Like block full-explicit, but also with single-line scope.  Each
 the explicit scope rules.  All contains bodies, some may contain heads  has at least a body and, in limited circumstances, a head
 .Pq So \&Bf Sc .  .Pq So \&Fo Sc , So \&Eo Sc
   and/or tail
   .Pq So \&Ec Sc .
   .Bd -literal -offset indent
   \&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead...\(rB
   \(lBbody...\(rB
   \&.Yc \(lBtail...\(rB
   
   \&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead...\(rB \
   \(lBbody...\(rB \&Yc \(lBtail...\(rB
   .Ed
   .\" PARAGRAPH------------
 .Pp  .Pp
 .Bl -column -compact -offset indent "MacroX" "CallableX" "ParsableX" "closed by XXX"  .Bl -column "MacroX" "CallableX" "ParsableX" "closed by XXXX" -compact -offset indent
 .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Scope  .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Scope
 .It \&.Bd    Ta    \&No    Ta    \&No    Ta    closed by \&.Ed  .It \&Ac     Ta    Yes      Ta    Yes      Ta    opened by \&Ao
 .It \&.Ed    Ta    \&No    Ta    \&No    Ta    opened by \&.Bd  .It \&Ao     Ta    Yes      Ta    Yes      Ta    closed by \&Ac
 .It \&.Bl    Ta    \&No    Ta    \&No    Ta    closed by \&.El  .It \&Bc     Ta    Yes      Ta    Yes      Ta    closed by \&Bo
 .It \&.El    Ta    \&No    Ta    \&No    Ta    opened by \&.Bl  .It \&Bo     Ta    Yes      Ta    Yes      Ta    opened by \&Bc
 .It \&.Bf    Ta    \&No    Ta    \&No    Ta    closed by \&.Ef  .It \&Brc    Ta    Yes      Ta    Yes      Ta    opened by \&Bro
 .It \&.Ef    Ta    \&No    Ta    \&No    Ta    opened by \&.Bf  .It \&Bro    Ta    Yes      Ta    Yes      Ta    closed by \&Brc
 .It \&.Bk    Ta    \&No    Ta    \&No    Ta    closed by \&.Ek  .It \&Dc     Ta    Yes      Ta    Yes      Ta    opened by \&Do
 .It \&.Ek    Ta    \&No    Ta    \&No    Ta    opened by \&.Bk  .It \&Do     Ta    Yes      Ta    Yes      Ta    closed by \&Dc
   .It \&Ec     Ta    Yes      Ta    Yes      Ta    opened by \&Eo
   .It \&Eo     Ta    Yes      Ta    Yes      Ta    closed by \&Ec
   .It \&Fc     Ta    Yes      Ta    Yes      Ta    opened by \&Fo
   .It \&Fo     Ta    \&No     Ta    \&No     Ta    closed by \&Fc
   .It \&Oc     Ta    Yes      Ta    Yes      Ta    closed by \&Oo
   .It \&Oo     Ta    Yes      Ta    Yes      Ta    opened by \&Oc
   .It \&Pc     Ta    Yes      Ta    Yes      Ta    closed by \&Po
   .It \&Po     Ta    Yes      Ta    Yes      Ta    opened by \&Pc
   .It \&Qc     Ta    Yes      Ta    Yes      Ta    opened by \&Oo
   .It \&Qo     Ta    Yes      Ta    Yes      Ta    closed by \&Oc
   .It \&Re     Ta    \&No     Ta    \&No     Ta    opened by \&Rs
   .It \&Rs     Ta    \&No     Ta    \&No     Ta    closed by \&Re
   .It \&Sc     Ta    Yes      Ta    Yes      Ta    opened by \&So
   .It \&So     Ta    Yes      Ta    Yes      Ta    closed by \&Sc
   .It \&Xc     Ta    Yes      Ta    Yes      Ta    opened by \&Xo
   .It \&Xo     Ta    Yes      Ta    Yes      Ta    closed by \&Xc
 .El  .El
 .\" SUB-SECTION  .\" SUB-SECTION----------------------
 .Ss Block partial-implicit  .Ss Block partial-implicit
 All of these are callable and parsed for further macros.  Their scopes  Like block full-implicit, but with single-line scope closed by
 close at the invocation's end-of-line.  .Sx Reserved Characters
   or end of line.
   .Bd -literal -offset indent
   \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBbody...\(rB \(lBres...\(rB
   .Ed
   .\" PARAGRAPH------------
 .Pp  .Pp
 .Bl -column "MacroX" "CallableX" "ParsableX" -compact -offset indent  .Bl -column "MacroX" "CallableX" "ParsableX" -compact -offset indent
 .It Em Macro Ta Em Callable Ta Em Parsable  .It Em Macro Ta Em Callable Ta Em Parsable
 .It \&.Aq    Ta    Yes   Ta    Yes  .It \&Aq     Ta    Yes      Ta    Yes
 .It \&.Op    Ta    Yes   Ta    Yes  .It \&Bq     Ta    Yes      Ta    Yes
 .It \&.Bq    Ta    Yes   Ta    Yes  .It \&Brq    Ta    Yes      Ta    Yes
 .It \&.Dq    Ta    Yes   Ta    Yes  .It \&D1     Ta    \&No     Ta    \&Yes
 .It \&.Pq    Ta    Yes   Ta    Yes  .It \&Dl     Ta    \&No     Ta    Yes
 .It \&.Qq    Ta    Yes   Ta    Yes  .It \&Dq     Ta    Yes      Ta    Yes
 .It \&.Sq    Ta    Yes   Ta    Yes  .It \&Op     Ta    Yes      Ta    Yes
 .It \&.Brq   Ta    Yes   Ta    Yes  .It \&Pq     Ta    Yes      Ta    Yes
 .It \&.D1    Ta    \&No  Ta    \&Yes  .It \&Ql     Ta    Yes      Ta    Yes
 .It \&.Dl    Ta    \&No  Ta    Yes  .It \&Qq     Ta    Yes      Ta    Yes
 .It \&.Ql    Ta    Yes   Ta    Yes  .It \&Sq     Ta    Yes      Ta    Yes
 .El  .El
 .\" PARAGRAPH  .\" SUB-SECTION----------------------
 .Pp  .Ss In-line
 The  Closed by
 .Sq \&.Op  .Sx Reserved Characters ,
 may be broken by  end of line, fixed argument lengths, and/or subsequent macros.  In-line
 .Sq \&.Oc  macros have only text children.  If a number (or inequality) of
 as in the following example:  arguments is
   .Pq n ,
   then the macro accepts an arbitrary number of arguments.
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.Oo  \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBargs...\(rB \(lbres...\(rb
 \&.Op Fl a Oc  
   \&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBargs...\(rB Yc...
   
   \&.Yo \(lB\-arg \(lBval...\(rB\(rB arg0 arg1 argN
 .Ed  .Ed
   .\" PARAGRAPH------------
 .Pp  .Pp
 In the above example, the scope of  
 .Sq \&.Op  
 is technically broken by  
 .Sq \&.Oc ,  
 however, due to the overwhelming existence of this sequence, it's  
 allowed.  
 .\" SUB-SECTION  
 .Ss Block partial-explicit  
 Each of these contains at least a body and, in limited circumstances, a  
 head  
 .Pq So \&.Fo Sc , So \&.Eo Sc  
 and/or tail  
 .Pq So \&.Ec Sc .  
 .Pp  
 .Bl -column "MacroX" "CallableX" "ParsableX" "closed by XXXX" -compact -offset indent  
 .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Scope  
 .It \&.Ao    Ta    Yes   Ta    Yes    Ta    closed by \&.Ac  
 .It \&.Ac    Ta    Yes   Ta    Yes    Ta    opened by \&.Ao  
 .It \&.Bc    Ta    Yes   Ta    Yes    Ta    closed by \&.Bo  
 .It \&.Bo    Ta    Yes   Ta    Yes    Ta    opened by \&.Bc  
 .It \&.Pc    Ta    Yes   Ta    Yes    Ta    closed by \&.Po  
 .It \&.Po    Ta    Yes   Ta    Yes    Ta    opened by \&.Pc  
 .It \&.Do    Ta    Yes   Ta    Yes    Ta    closed by \&.Dc  
 .It \&.Dc    Ta    Yes   Ta    Yes    Ta    opened by \&.Do  
 .It \&.Xo    Ta    Yes   Ta    Yes    Ta    closed by \&.Xc  
 .It \&.Xc    Ta    Yes   Ta    Yes    Ta    opened by \&.Xo  
 .It \&.Bro   Ta    Yes   Ta    Yes    Ta    closed by \&.Brc  
 .It \&.Brc   Ta    Yes   Ta    Yes    Ta    opened by \&.Bro  
 .It \&.Oc    Ta    Yes   Ta    Yes    Ta    closed by \&.Oo  
 .It \&.Oo    Ta    Yes   Ta    Yes    Ta    opened by \&.Oc  
 .It \&.So    Ta    Yes   Ta    Yes    Ta    closed by \&.Sc  
 .It \&.Sc    Ta    Yes   Ta    Yes    Ta    opened by \&.So  
 .It \&.Fc    Ta    Yes   Ta    Yes    Ta    opened by \&.Fo  
 .It \&.Fo    Ta    \&No  Ta    \&No   Ta    closed by \&.Fc  
 .It \&.Ec    Ta    Yes   Ta    Yes    Ta    opened by \&.Eo  
 .It \&.Eo    Ta    Yes   Ta    Yes    Ta    closed by \&.Ec  
 .It \&.Qc    Ta    Yes   Ta    Yes    Ta    opened by \&.Oo  
 .It \&.Qo    Ta    Yes   Ta    Yes    Ta    closed by \&.Oc  
 .It \&.Re    Ta    \&No  Ta    \&No   Ta    opened by \&.Rs  
 .It \&.Rs    Ta    \&No  Ta    \&No   Ta    closed by \&.Re  
 .El  
 .\" SUB-SECTION  
 .Ss In-line  
 In-line macros have only text children.  If a number (or inequality) of  
 arguments is  
 .Pq n ,  
 then the macro accepts an arbitrary number of arguments.  
 .Pp  
 .Bl -column "MacroX" "CallableX" "ParsableX" "Arguments" -compact -offset indent  .Bl -column "MacroX" "CallableX" "ParsableX" "Arguments" -compact -offset indent
 .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Arguments  .It Em Macro Ta Em Callable Ta Em Parsable Ta Em Arguments
 .It \&.Dd    Ta    \&No  Ta    \&No    Ta    >0  .It \&%A     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Dt    Ta    \&No  Ta    \&No    Ta    n  .It \&%B     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Os    Ta    \&No  Ta    \&No    Ta    n  .It \&%C     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Pp    Ta    \&No  Ta    \&No    Ta    0  .It \&%D     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Ad    Ta    Yes   Ta    Yes     Ta    n  .It \&%I     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.An    Ta    Yes   Ta    Yes     Ta    n  .It \&%J     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Ar    Ta    Yes   Ta    Yes     Ta    n  .It \&%N     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Cd    Ta    Yes   Ta    \&No    Ta    >0  .It \&%O     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Cm    Ta    Yes   Ta    Yes     Ta    n  .It \&%P     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Dv    Ta    Yes   Ta    Yes     Ta    n  .It \&%R     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Er    Ta    Yes   Ta    Yes     Ta    >0  .It \&%T     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Ev    Ta    Yes   Ta    Yes     Ta    n  .It \&%V     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Ex    Ta    \&No  Ta    \&No    Ta    0  .It \&Ad     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Fa    Ta    Yes   Ta    Yes     Ta    n  .It \&An     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Fd    Ta    \&No  Ta    \&No    Ta    >0  .It \&Ap     Ta    Yes      Ta    Yes      Ta    0
 .It \&.Fl    Ta    Yes   Ta    Yes     Ta    n  .It \&Ar     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Fn    Ta    Yes   Ta    Yes     Ta    >0  .It \&At     Ta    Yes      Ta    Yes      Ta    1
 .It \&.Ft    Ta    Yes   Ta    Yes     Ta    n  .It \&Bsx    Ta    Yes      Ta    Yes      Ta    n
 .It \&.Ic    Ta    Yes   Ta    Yes     Ta    >0  .It \&Bt     Ta    \&No     Ta    \&No     Ta    0
 .It \&.In    Ta    \&No  Ta    \&No    Ta    n  .It \&Bx     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Li    Ta    Yes   Ta    Yes     Ta    n  .It \&Cd     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.Nd    Ta    \&No  Ta    \&No    Ta    n  .It \&Cm     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Nm    Ta    Yes   Ta    Yes     Ta    n  .It \&Db     Ta    \&No     Ta    \&No     Ta    1
 .It \&.Ot    Ta    \&No  Ta    \&No    Ta    n  .It \&Dd     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.Pa    Ta    Yes   Ta    Yes     Ta    n  .It \&Dt     Ta    \&No     Ta    \&No     Ta    n
 .It \&.Rv    Ta    \&No  Ta    \&No    Ta    0  .It \&Dv     Ta    Yes      Ta    Yes      Ta    n
 .It \&.St    Ta    \&No  Ta    Yes     Ta    1  .It \&Dx     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Va    Ta    Yes   Ta    Yes     Ta    n  .It \&Em     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.Vt    Ta    Yes   Ta    Yes     Ta    >0  .It \&En     Ta    \&No     Ta    \&No     Ta    0
 .It \&.Xr    Ta    Yes   Ta    Yes     Ta    >0, <3  .It \&Er     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.%A    Ta    \&No  Ta    \&No    Ta    >0  .It \&Es     Ta    \&No     Ta    \&No     Ta    0
 .It \&.%B    Ta    \&No  Ta    \&No    Ta    >0  .It \&Ev     Ta    Yes      Ta    Yes      Ta    n
 .It \&.%C    Ta    \&No  Ta    \&No    Ta    >0  .It \&Ex     Ta    \&No     Ta    \&No     Ta    0
 .It \&.%D    Ta    \&No  Ta    \&No    Ta    >0  .It \&Fa     Ta    Yes      Ta    Yes      Ta    n
 .It \&.%I    Ta    \&No  Ta    \&No    Ta    >0  .It \&Fd     Ta    \&No     Ta    \&No     Ta    >0
 .It \&.%J    Ta    \&No  Ta    \&No    Ta    >0  .It \&Fl     Ta    Yes      Ta    Yes      Ta    n
 .It \&.%N    Ta    \&No  Ta    \&No    Ta    >0  .It \&Fn     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.%O    Ta    \&No  Ta    \&No    Ta    >0  .It \&Fr     Ta    \&No     Ta    \&No     Ta    n
 .It \&.%P    Ta    \&No  Ta    \&No    Ta    >0  .It \&Ft     Ta    Yes      Ta    Yes      Ta    n
 .It \&.%R    Ta    \&No  Ta    \&No    Ta    >0  .It \&Fx     Ta    Yes      Ta    Yes      Ta    n
 .It \&.%T    Ta    \&No  Ta    \&No    Ta    >0  .It \&Hf     Ta    \&No     Ta    \&No     Ta    n
 .It \&.%V    Ta    \&No  Ta    \&No    Ta    >0  .It \&Ic     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.At    Ta    Yes   Ta    Yes     Ta    1  .It \&In     Ta    \&No     Ta    \&No     Ta    n
 .It \&.Bsx   Ta    Yes   Ta    Yes     Ta    n  .It \&Lb     Ta    \&No     Ta    \&No     Ta    1
 .It \&.Bx    Ta    Yes   Ta    Yes     Ta    n  .It \&Li     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Db    Ta    \&No  Ta    \&No    Ta    1  .It \&Lk     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Em    Ta    Yes   Ta    Yes     Ta    >0  .It \&Lp     Ta    \&No     Ta    \&No     Ta    0
 .It \&.Fx    Ta    Yes   Ta    Yes     Ta    n  .It \&Ms     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.Ms    Ta    Yes   Ta    Yes     Ta    >0  .It \&Mt     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.No    Ta    Yes   Ta    Yes     Ta    0  .It \&Nm     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Ns    Ta    Yes   Ta    Yes     Ta    0  .It \&No     Ta    Yes      Ta    Yes      Ta    0
 .It \&.Nx    Ta    Yes   Ta    Yes     Ta    n  .It \&Ns     Ta    Yes      Ta    Yes      Ta    0
 .It \&.Ox    Ta    Yes   Ta    Yes     Ta    n  .It \&Nx     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Pf    Ta    \&No  Ta    Yes     Ta    1  .It \&Os     Ta    \&No     Ta    \&No     Ta    n
 .It \&.Sm    Ta    \&No  Ta    \&No    Ta    1  .It \&Ot     Ta    \&No     Ta    \&No     Ta    n
 .It \&.Sx    Ta    Yes   Ta    Yes     Ta    >0  .It \&Ox     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Sy    Ta    Yes   Ta    Yes     Ta    >0  .It \&Pa     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Tn    Ta    Yes   Ta    Yes     Ta    >0  .It \&Pf     Ta    \&No     Ta    Yes      Ta    1
 .It \&.Ux    Ta    Yes   Ta    Yes     Ta    n  .It \&Pp     Ta    \&No     Ta    \&No     Ta    0
 .It \&.Dx    Ta    Yes   Ta    Yes     Ta    n  .It \&Rv     Ta    \&No     Ta    \&No     Ta    0
 .It \&.Bt    Ta    \&No  Ta    \&No    Ta    0  .It \&Sm     Ta    \&No     Ta    \&No     Ta    1
 .It \&.Hf    Ta    \&No  Ta    \&No    Ta    n  .It \&St     Ta    \&No     Ta    Yes      Ta    1
 .It \&.Fr    Ta    \&No  Ta    \&No    Ta    n  .It \&Sx     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.Ud    Ta    \&No  Ta    \&No    Ta    0  .It \&Sy     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.Lb    Ta    \&No  Ta    \&No    Ta    1  .It \&Tn     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.Ap    Ta    Yes   Ta    Yes     Ta    0  .It \&Ud     Ta    \&No     Ta    \&No     Ta    0
 .It \&.Lp    Ta    \&No  Ta    \&No    Ta    0  .It \&Ux     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Lk    Ta    Yes   Ta    Yes     Ta    n  .It \&Va     Ta    Yes      Ta    Yes      Ta    n
 .It \&.Mt    Ta    Yes   Ta    Yes     Ta    >0  .It \&Vt     Ta    Yes      Ta    Yes      Ta    >0
 .It \&.Es    Ta    \&No  Ta    \&No    Ta    0  .It \&Xr     Ta    Yes      Ta    Yes      Ta    >0, <3
 .It \&.En    Ta    \&No  Ta    \&No    Ta    0  .It \&br     Ta    \&No     Ta    \&No     Ta    0
   .It \&sp     Ta    \&No     Ta    \&No     Ta    1
 .El  .El
 .Pp  .\" SECTION---------------------------------------------
 The  
 .Sq \&.Ot ,  
 .Sq \&.Fr ,  
 .Sq \&.Es  
 and  
 .Sq \&.En ,  
 macros are obsolete.  
 .\" SECTION  
 .Sh COMPATIBILITY  .Sh COMPATIBILITY
 This section documents compatibility with other roff implementations, at  This section documents compatibility with other roff implementations, at
 this time limited to  this time limited to
 .Xr groff 1 .  .Xr groff 1 .
 The term  The term
 .Qq historic groff  .Qq historic groff
 refers to those versions before the  refers to those versions before the
 .Pa doc.tmac  .Pa doc.tmac
 file re-write  file re-write
 .Pq somewhere between 1.15 and 1.19 .  .Pq somewhere between 1.15 and 1.19 .
   .\" PARAGRAPH------------
 .Pp  .Pp
 .Bl -dash -compact  .Bl -dash -compact
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 Some character sequences in groff are not handled depending on escape  The
 style, e.g.,  .Sq \-split
 .Sq \e(ba  or
 and  .Sq \-nosplit
 .Sq \e*(Ba  argument to
 may not be interchanged.  This is no longer the case: all character  .Sq \&An
 sequences resolve to the same symbol, regardless the escape style.  applies to the whole document, not just to the current section as it
   does in groff.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
   In quoted literals, groff allowed pair-wise double-quotes to produce a
   standalone double-quote in formatted output.  This idiosyncratic
   behaviour is no longer applicable.
   .\" LIST-ITEM
   .It
   The
   .Sq \&sp
   macro does not accept negative numbers.
   .\" LIST-ITEM
   .It
 Blocks of whitespace are stripped from both macro and free-form text  Blocks of whitespace are stripped from both macro and free-form text
 lines (except when in literal mode), while groff would retain whitespace  lines (except when in literal mode), while groff would retain whitespace
 in free-form text lines.  in free-form text lines.
Line 546  some block-level macros) are now callable, conforming 
Line 506  some block-level macros) are now callable, conforming 
 non-historic groff version.  non-historic groff version.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 The vertical bar  The vertical bar
 .Sq \(ba  .Sq \(ba
 made historic groff  made historic groff
 .Qq go orbital  .Qq go orbital
 but is a proper delimiter in this implementation.  but is a proper delimiter in this implementation.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 .Sq \&.It \-nested  .Sq \&It \-nested
 is assumed for all lists (it wasn't in historic groff): any list may be  is assumed for all lists (it wasn't in historic groff): any list may be
 nested and  nested and
 .Sq \-enum  .Sq \-enum
 lists will restart the sequence only for the sub-list.  lists will restart the sequence only for the sub-list.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 .Sq \&.It \-column  .Sq \&It \-column
 syntax where column widths may be preceded by other arguments (instead  syntax where column widths may be preceded by other arguments (instead
 of proceeded) is not supported.  of proceeded) is not supported.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 The  The
 .Sq \&.At  .Sq \&At
 macro only accepts a single parameter.  macro only accepts a single parameter.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 Some manuals use  Some manuals use
 .Sq \&.Li  .Sq \&Li
 incorrectly by following it with a reserved character and expecting the  incorrectly by following it with a reserved character and expecting the
 delimiter to render.  This is not supported.  delimiter to render.  This is not supported.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 If an special-character control character is escaped  In groff, the
 .Sq \e\e ,  .Sq \&Fo
 it will obviously not render the subsequent sequence.  Even newer  macro only produces the first parameter.  This is no longer the case.
 versions of groff seem to dither on this.  
 .El  .El
 .\" SECTION  .\" SECTION---------------------------------------------
 .Sh SEE ALSO  .Sh SEE ALSO
 .Xr mandoc 1 ,  .Xr mandoc 1 ,
 .Xr mandoc_char 7  .Xr mandoc_char 7
 .\" SECTION  .\" SECTION---------------------------------------------
 .Sh AUTHORS  .Sh AUTHORS
 The  The
 .Nm  .Nm
 utility was written by  reference was written by
 .An Kristaps Dzonsons Aq kristaps@kth.se .  .An Kristaps Dzonsons Aq kristaps@kth.se .
 .\" SECTION  .\" SECTION---------------------------------------------
 .Sh CAVEATS  .Sh CAVEATS
 There are many ambiguous parts of mdoc.  There are many ambiguous parts of mdoc.
   .\" PARAGRAPH------------
 .Pp  .Pp
 .Bl -dash -compact  .Bl -dash -compact
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 .Sq \&.Fa  .Sq \&Fa
 should be  should be
 .Sq \&.Va  .Sq \&Va
 as function arguments are variables.  as function arguments are variables.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 .Sq \&.Ft  .Sq \&Ft
 should be  should be
 .Sq \&.Vt  .Sq \&Vt
 as function return types are still types.  Furthermore, the  as function return types are still types.  Furthermore, the
 .Sq \&.Ft  .Sq \&Ft
 should be removed and  should be removed and
 .Sq \&.Fo ,  .Sq \&Fo ,
 which ostensibly follows it, should follow the same convention as  which ostensibly follows it, should follow the same convention as
 .Sq \&.Va .  .Sq \&Va .
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 .Sq \&.Va  .Sq \&Va
 should formalise that only one or two arguments are acceptable: a  should formalise that only one or two arguments are acceptable: a
 variable name and optional, preceding type.  variable name and optional, preceding type.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 .Sq \&.Fd  .Sq \&Fd
 is ambiguous.  It's commonly used to indicate an include file in the  is ambiguous.  It's commonly used to indicate an include file in the
 synopsis section.  synopsis section.
 .Sq \&.In  .Sq \&In
 should be used, instead.  should be used, instead.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 Only the  Only the
 .Sq \-literal  .Sq \-literal
 argument to  argument to
 .Sq \&.Bd  .Sq \&Bd
 makes sense.  The remaining ones should be removed.  makes sense.  The remaining ones should be removed.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 The  The
 .Sq \&.Xo  .Sq \&Xo
 and  and
 .Sq \&.Xc  .Sq \&Xc
 macros should be deprecated.  macros should be deprecated.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 The  The
 .Sq \&.Dt  .Sq \&Dt
 macro lacks clarity.  It should be absolutely clear which title will  macro lacks clarity.  It should be absolutely clear which title will
 render when formatting the manual page.  render when formatting the manual page.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 A  A
 .Sq \&.Lx  .Sq \&Lx
 should be provided for Linux (\(`a la  should be provided for Linux (\(`a la
 .Sq \&.Ox ,  .Sq \&Ox ,
 .Sq \&.Nx  .Sq \&Nx
 etc.).  etc.).
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 There's no way to refer to references in  There's no way to refer to references in
 .Sq \&.Rs/.Re  .Sq \&Rs/Re
 blocks.  blocks.
 .\" LIST-ITEM  .\" LIST-ITEM
 .It  .It
 The \-split and \-nosplit arguments to  The \-split and \-nosplit dictates via
 .Sq \&.An  .Sq \&An
 are inane.  are re-set when entering and leaving the AUTHORS section.
 .\" LIST-ITEM  
 .It  
 The end-of-line whitespace warnings are superfluous holdovers from  
 historic groff.  
 .El  .El
Legend:
Removed from v.1.39  
changed lines
  Added in v.1.54
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