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Diff for /mandoc/mdoc.7 between version 1.77 and 1.85

version 1.77, 2009/11/12 05:50:12 version 1.85, 2010/03/21 18:16:41
Line 132  and
Line 132  and
 Terms may be text-decorated using the  Terms may be text-decorated using the
 .Sq \ef  .Sq \ef
 escape followed by an indicator: B (bold), I, (italic), R (Roman), or P  escape followed by an indicator: B (bold), I, (italic), R (Roman), or P
 (revert to previous mode):  (revert to previous mode):
 .Pp  .Pp
 .D1 \efBbold\efR \efIitalic\efP  .D1 \efBbold\efR \efIitalic\efP
 .Pp  .Pp
Line 140  A numerical representation 3, 2, or 1 (bold, italic, a
Line 140  A numerical representation 3, 2, or 1 (bold, italic, a
 respectively) may be used instead.  A text decoration is valid within  respectively) may be used instead.  A text decoration is valid within
 the current font scope only:  if a macro opens a font scope alongside  the current font scope only:  if a macro opens a font scope alongside
 its own scope, such as  its own scope, such as
 .Sx \&Bf  .Sx \&Bf
 .Cm \&Sy ,  .Cm \&Sy ,
 in-scope invocations of  in-scope invocations of
 .Sq \ef  .Sq \ef
Line 170  for arbitrary-digit numerals:
Line 170  for arbitrary-digit numerals:
 .D1 \es+(10much bigger\es-(10  .D1 \es+(10much bigger\es-(10
 .D1 \es+'100'much much bigger\es-'100'  .D1 \es+'100'much much bigger\es-'100'
 .Pp  .Pp
 Note these forms are  Note these forms are
 .Em not  .Em not
 recommended for  recommended for
 .Nm ,  .Nm ,
 which encourages semantic annotation.  which encourages semantic annotation.
 .  .
 .  .
 .Ss Predefined Strings  .Ss Predefined Strings
 Historically,  Historically,
 .Xr groff 1  .Xr groff 1
 also defined a set of package-specific  also defined a set of package-specific
 .Dq predefined strings ,  .Dq predefined strings ,
 which, like  which, like
 .Sx Special Characters ,  .Sx Special Characters ,
 demark special output characters and strings by way of input codes.  demark special output characters and strings by way of input codes.
 Predefined strings are escaped with the slash-asterisk,  Predefined strings are escaped with the slash-asterisk,
Line 343  and
Line 343  and
 .Sx \&Os  .Sx \&Os
 macros, is required for every document.  macros, is required for every document.
 .Pp  .Pp
 The first section (sections are denoted by  The first section (sections are denoted by
 .Sx \&Sh )  .Sx \&Sh )
 must be the NAME section, consisting of at least one  must be the NAME section, consisting of at least one
 .Sx \&Nm  .Sx \&Nm
Line 419  The
Line 419  The
 macro(s) must precede the  macro(s) must precede the
 .Sx \&Nd  .Sx \&Nd
 macro.  macro.
   .Pp
   See
   .Sx \&Nm
   and
   .Sx \&Nd .
 .  .
 .It Em LIBRARY  .It Em LIBRARY
 The name of the library containing the documented material, which is  The name of the library containing the documented material, which is
Line 429  this is as follows:
Line 434  this is as follows:
 .Ed  .Ed
 .Pp  .Pp
 See  See
 .Sx \&Lb  .Sx \&Lb .
 for details.  
 .  .
 .It Em SYNOPSIS  .It Em SYNOPSIS
 Documents the utility invocation syntax, function call syntax, or device  Documents the utility invocation syntax, function call syntax, or device
 configuration.  configuration.
 .Pp  .Pp
 For the first, utilities (sections 1, 6, and 8), this is  For the first, utilities (sections 1, 6, and 8), this is
 generally structured as follows:  generally structured as follows:
Line 465  And for the third, configurations (section 4):
Line 469  And for the third, configurations (section 4):
 \&.Cd \*qit* at isa? port 0x4e\*q  \&.Cd \*qit* at isa? port 0x4e\*q
 .Ed  .Ed
 .Pp  .Pp
 Manuals not in these sections generally don't need a  Manuals not in these sections generally don't need a
 .Em SYNOPSIS .  .Em SYNOPSIS .
   .Pp
   See
   .Sx \&Op ,
   .Sx \&Cd ,
   .Sx \&Fn ,
   .Sx \&Ft ,
   and
   .Sx \&Vt .
 .  .
 .It Em DESCRIPTION  .It Em DESCRIPTION
 This expands upon the brief, one-line description in  This expands upon the brief, one-line description in
 .Em NAME .  .Em NAME .
 It usually contains a break-down of the options (if documenting a  It usually contains a break-down of the options (if documenting a
 command), such as:  command), such as:
Line 480  The arguments are as follows:
Line 492  The arguments are as follows:
 Print verbose information.  Print verbose information.
 \&.El  \&.El
 .Ed  .Ed
   .Pp
 Manuals not documenting a command won't include the above fragment.  Manuals not documenting a command won't include the above fragment.
 .  .
 .It Em IMPLEMENTATION NOTES  .It Em IMPLEMENTATION NOTES
Line 535  for manuals in sections 1, 6, and 8; however, this pra
Line 548  for manuals in sections 1, 6, and 8; however, this pra
 discouraged.  discouraged.
 .Pp  .Pp
 See  See
 .Sx \&Bl No \-diag .  .Sx \&Bl
   .Fl diag .
 .  .
 .It Em ERRORS  .It Em ERRORS
 Documents error handling in sections 2, 3, and 9.  Documents error handling in sections 2, 3, and 9.
Line 669  All macros have bodies; some
Line 683  All macros have bodies; some
 don't have heads; only one  don't have heads; only one
 .Po  .Po
 .Sx \&It Fl column  .Sx \&It Fl column
 .Pc  .Pc
 has multiple heads.  has multiple heads.
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead... \(lBTa head...\(rB\(rB  \&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead... \(lBTa head...\(rB\(rB
Line 756  or end of line.
Line 770  or end of line.
 .It Sx \&Ql  Ta    Yes      Ta    Yes  .It Sx \&Ql  Ta    Yes      Ta    Yes
 .It Sx \&Qq  Ta    Yes      Ta    Yes  .It Sx \&Qq  Ta    Yes      Ta    Yes
 .It Sx \&Sq  Ta    Yes      Ta    Yes  .It Sx \&Sq  Ta    Yes      Ta    Yes
   .It Sx \&Vt  Ta    Yes      Ta    Yes
 .El  .El
   .Pp
   Note that the
   .Sx \&Vt
   macro is a
   .Sx Block partial-implicit
   only when invoked as the first macro
   in a SYNOPSIS section line, else it is
   .Sx In-line .
 .  .
 .  .
 .Ss In-line  .Ss In-line
Line 849  then the macro accepts an arbitrary number of argument
Line 872  then the macro accepts an arbitrary number of argument
 .It Sx \&Ux  Ta    Yes      Ta    Yes      Ta    n  .It Sx \&Ux  Ta    Yes      Ta    Yes      Ta    n
 .It Sx \&Va  Ta    Yes      Ta    Yes      Ta    n  .It Sx \&Va  Ta    Yes      Ta    Yes      Ta    n
 .It Sx \&Vt  Ta    Yes      Ta    Yes      Ta    >0  .It Sx \&Vt  Ta    Yes      Ta    Yes      Ta    >0
 .It Sx \&Xr  Ta    Yes      Ta    Yes      Ta    >0, <3  .It Sx \&Xr  Ta    Yes      Ta    Yes      Ta    >0
 .It Sx \&br  Ta    \&No     Ta    \&No     Ta    0  .It Sx \&br  Ta    \&No     Ta    \&No     Ta    0
 .It Sx \&sp  Ta    \&No     Ta    \&No     Ta    1  .It Sx \&sp  Ta    \&No     Ta    \&No     Ta    1
 .El  .El
 .  .
 .  .
 .Sh REFERENCE  .Sh REFERENCE
Line 1012  a function:
Line 1035  a function:
 .Ed  .Ed
 .  .
 .Ss \&Aq  .Ss \&Aq
 Encloses its arguments in angled brackets.  Encloses its arguments in angled brackets.
 .Pp  .Pp
 Examples:  Examples:
 .Bd -literal -offset indent  .Bd -literal -offset indent
Line 1059  Note that these parameters do not begin with a hyphen.
Line 1082  Note that these parameters do not begin with a hyphen.
 .Pp  .Pp
 Examples:  Examples:
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.At  \&.At
 \&.At V.1  \&.At V.1
 .Ed  .Ed
 .Pp  .Pp
Line 1160  and
Line 1183  and
 .Ss \&Bf  .Ss \&Bf
 .Ss \&Bk  .Ss \&Bk
 .Ss \&Bl  .Ss \&Bl
 .  .\" Begins a list composed of one or more list entries.  A list entry is
   .\" specified by the
   .\" .Sx \&It
   .\" macro, which consists of a head and optional body.  By default, a list
   .\" is preceded by a blank line.  A list must specify one of the following
   .\" list types:
   .\" .Bl -tag -width 12n
   .\" .It Fl bullet
   .\" A list offset by a bullet.  The head of list entries must be empty.
   .\" List entry bodies are justified after the bullet.
   .\" .It Fl column
   .\" A columnated list.  The number of columns is specified as arguments to
   .\" the
   .\" .Sx \&Bl
   .\" macro (the deprecated form of following the invocation of
   .\" .Fl column
   .\" is also accepted).  Arguments dictate the width of columns specified in
   .\" list entries.  List entry bodies must be left empty.  Columns specified
   .\" in the list entry head are justified to their position in the sequence
   .\" of columns.
   .\" .It Fl dash
   .\" A list offset by a dash (hyphen).  The head of list entries must be
   .\" empty.  List entry bodies are justified past the dash.
   .\" .It Fl diag
   .\" Like
   .\" .Fl inset
   .\" lists, but with additional formatting to the head.
   .\" .It Fl enum
   .\" A list offset by a number indicating list entry position.  The head of
   .\" list entries must be empty.  List entry bodies are justified past the
   .\" enumeration.
   .\" .It Fl hang
   .\" Like
   .\" .Fl tag ,
   .\" but instead of list bodies justifying to the head on the first line,
   .\" they trail the head text.
   .\" .It Fl hyphen
   .\" Synonym for
   .\" .Fl dash .
   .\" .It Fl inset
   .\" Like
   .\" .Fl tag ,
   .\" but list entry bodies aren't justified.
   .\" .It Fl item
   .\" An un-justified list.  This produces blocks of text.
   .\" .It Fl ohang
   .\" List bodies are placed on the line following the head.
   .\" .It Fl tag
   .\" A list offset by list entry heads.  List entry bodies are justified
   .\" after the head.
   .\" .El
   .\" .Pp
   .\" More...
   .\" .
 .Ss \&Bo  .Ss \&Bo
 Begins a block enclosed by square brackets.  Does not have any head  Begins a block enclosed by square brackets.  Does not have any head
 arguments.  arguments.
Line 1175  See also
Line 1251  See also
 .Sx \&Bq .  .Sx \&Bq .
 .  .
 .Ss \&Bq  .Ss \&Bq
 Encloses its arguments in square brackets.  Encloses its arguments in square brackets.
 .Pp  .Pp
 Examples:  Examples:
 .Bd -literal -offset indent  .Bd -literal -offset indent
Line 1322  manual.  Its calling syntax is as follows:
Line 1398  manual.  Its calling syntax is as follows:
 .Pp  .Pp
 .D1 \. Ns Sx \&Dd Cm date  .D1 \. Ns Sx \&Dd Cm date
 .Pp  .Pp
 The  The
 .Cm date  .Cm date
 field may be either  field may be either
 .Ar $\&Mdocdate$ ,  .Ar $\&Mdocdate$ ,
Line 1371  See also
Line 1447  See also
 .Sx \&Dq .  .Sx \&Dq .
 .  .
 .Ss \&Dq  .Ss \&Dq
 Encloses its arguments in double quotes.  Encloses its arguments in double quotes.
 .Pp  .Pp
 Examples:  Examples:
 .Bd -literal -offset indent  .Bd -literal -offset indent
Line 1477  subsequent that.  It, too, is optional.  It must be on
Line 1553  subsequent that.  It, too, is optional.  It must be on
 .Ar hppa64 ,  .Ar hppa64 ,
 .Ar i386 ,  .Ar i386 ,
 .Ar landisk ,  .Ar landisk ,
   .Ar longsoon ,
 .Ar luna88k ,  .Ar luna88k ,
 .Ar mac68k ,  .Ar mac68k ,
 .Ar macppc ,  .Ar macppc ,
Line 1596  is provided.
Line 1673  is provided.
 .Ss \&Fc  .Ss \&Fc
 .Ss \&Fd  .Ss \&Fd
 .Ss \&Fl  .Ss \&Fl
   Command-line flag.  Used when listing arguments to command-line
   utilities.  Prints a fixed-width hyphen
   .Sq \-
   before each delimited argument.  If no arguments are provided, a hyphen
   is still printed.
   .Pp
   Examples:
   .Bd -literal -offset indent
   \&.Fl a b c
   \&.Fl
   \&.Op Fl o Ns Ar file
   .Ed
   .Pp
   See also
   .Sx \&Cm .
   .
 .Ss \&Fn  .Ss \&Fn
 .Ss \&Fo  .Ss \&Fo
 .Ss \&Fr  .Ss \&Fr
Line 1809  and
Line 1902  and
 .  .
 .Ss \&Va  .Ss \&Va
 .Ss \&Vt  .Ss \&Vt
   A variable type.  This is also used for indicating global variables in the
   SYNOPSIS section, in which case a variable name is also specified.  Note that
   it accepts
   .Sx Block partial-implicit
   syntax when invoked as the first macro in the SYNOPSIS section, else it
   accepts ordinary
   .Sx In-line
   syntax.
   .Pp
   Note that this should not be confused with
   .Sx \&Ft ,
   which is used for function return types.
   .Pp
   Examples:
   .Bd -literal -offset indent
   \&.Vt unsigned char
   \&.Vt extern const char * const sys_signame[] ;
   .Ed
   .Pp
   See also
   .Sx \&Ft
   and
   .Sx \&Va .
   .
 .Ss \&Xc  .Ss \&Xc
 .Ss \&Xo  .Ss \&Xo
 .Ss \&Xr  .Ss \&Xr
   Link to another manual
   .Pq Qq cross-reference .
   Its calling syntax is
   .Pp
   .D1 \. Ns Sx \&Xr Cm name section
   .Pp
   The
   .Cm name
   and
   .Cm section
   are the name and section of the linked manual.  If
   .Cm section
   is followed by non-punctuation, an
   .Sx \&Ns
   is inserted into the token stream.  This behaviour is for compatibility
   with
   .Xr groff 1 .
   .Pp
   Examples:
   .Bd -literal -offset indent
   \&.Xr mandoc 1
   \&.Xr mandoc 1 ;
   \&.Xr mandoc 1 s behaviour
   .Ed
   .
 .Ss \&br  .Ss \&br
 .Ss \&sp  .Ss \&sp
 .  .
Line 1830  file re-write
Line 1972  file re-write
 .Pp  .Pp
 .Bl -dash -compact  .Bl -dash -compact
 .It  .It
   The comment syntax
   .Sq \e."
   is no longer accepted.
   .It
   In
   .Xr groff 1 ,
   the
   .Sx \&Pa
   macro does not format its arguments when used in the FILES section under
   certain list types.  This irregular behaviour has been discontinued.
   .It
   Historic
 .Xr groff 1  .Xr groff 1
   does not print a dash for empty
   .Sx \&Fl
   arguments.  This behaviour has been discontinued.
   .It
   .Xr groff 1
 behaves strangely (even between versions) when specifying  behaves strangely (even between versions) when specifying
 .Sq \ef  .Sq \ef
 escapes within line-macro scopes.  These aberrations have been  escapes within line-macro scopes.  These aberrations have been
Line 1838  normalised.
Line 1997  normalised.
 .It  .It
 Negative scaling units are now truncated to zero instead of creating  Negative scaling units are now truncated to zero instead of creating
 interesting conditions, such as with  interesting conditions, such as with
 .Sx \&sp  .Sx \&sp
 .Cm \-1i .  .Fl 1i .
 Furthermore, the  Furthermore, the
 .Sq f  .Sq f
 scaling unit, while accepted, is rendered as the default unit.  scaling unit, while accepted, is rendered as the default unit.
Line 1849  standalone double-quote in formatted output.  This idi
Line 2008  standalone double-quote in formatted output.  This idi
 behaviour is no longer applicable.  behaviour is no longer applicable.
 .It  .It
 Display types  Display types
 .Sx \&Bd  .Sx \&Bd
 .Fl center  .Fl center
 and  and
 .Fl right  .Fl right
Line 1880  made historic groff
Line 2039  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.
 .It  .It
 .Sx \&It  .Sx \&It
 .Fl nested  .Fl 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

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