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Diff for /mandoc/man.7 between version 1.54 and 1.58

version 1.54, 2009/11/16 08:46:59 version 1.58, 2010/03/25 07:28:16
Line 102  and
Line 102  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 295  the C library, this may be as follows:
Line 295  the C library, this may be as follows:
 .D1 Standard C Library (libc, -lc)  .D1 Standard C Library (libc, -lc)
 .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 310  And for the third, configurations (section 4):
Line 310  And for the third, configurations (section 4):
 .Pp  .Pp
 .D1 \&.B name* at cardbus ? function ?  .D1 \&.B name* at cardbus ? function ?
 .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 .
 .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).  command).
Line 361  Documents error handling in sections 2, 3, and 9.
Line 361  Documents error handling in sections 2, 3, and 9.
 .  .
 .It Em SEE ALSO  .It Em SEE ALSO
 References other manuals with related topics.  This section should exist  References other manuals with related topics.  This section should exist
 for most manuals.  for most manuals.
 .Pp  .Pp
 .D1 \&.BR bar \&( 1 \&),  .D1 \&.BR bar \&( 1 \&),
 .Pp  .Pp
Line 423  subsequent lines until closed by another block macro.
Line 423  subsequent lines until closed by another block macro.
 .Ss Line Macros  .Ss Line Macros
 Line macros are generally scoped to the current line, with the body  Line macros are generally scoped to the current line, with the body
 consisting of zero or more arguments.  If a macro is scoped to the next  consisting of zero or more arguments.  If a macro is scoped to the next
 line and the line arguments are empty, the next line is used instead,  line and the line arguments are empty, the next line, which must be
 else the general syntax is used.  Thus:  text, is used instead.  Thus:
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.I  \&.I
 foo  foo
Line 433  foo
Line 433  foo
 .Pp  .Pp
 is equivalent to  is equivalent to
 .Sq \&.I foo .  .Sq \&.I foo .
 If next-line macros are invoked consecutively, only the last is used; in  If next-line macros are invoked consecutively, only the last is used.
 other words, if a next-line macro is preceded by a block macro, it is  If a next-line macro is followed by a non-next-line macro, an error is
 ignored.  raised (unless in the case of
   .Sx \&br ,
   .Sx \&sp ,
   .Sx \&Sp ,
   or
   .Sx \&na ) .
   .Pp
   The syntax is as follows:
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.YO \(lBbody...\(rB  \&.YO \(lBbody...\(rB
 \(lBbody...\(rB  \(lBbody...\(rB
 .Ed  .Ed
 .  .
 .Pp  .Pp
 .Bl -column -compact -offset indent "MacroX" "ArgumentsX" "ScopeXXXXX"  .Bl -column -compact -offset indent "MacroX" "ArgumentsX" "ScopeXXXXX" "CompatX"
 .It Em Macro Ta Em Arguments Ta Em Scope  .It Em Macro Ta Em Arguments Ta Em Scope     Ta Em Notes
 .It Sx \&B   Ta    n         Ta    next-line  .It Sx \&B   Ta    n         Ta    next-line Ta    \&
 .It Sx \&BI  Ta    n         Ta    current  .It Sx \&BI  Ta    n         Ta    current   Ta    \&
 .It Sx \&BR  Ta    n         Ta    current  .It Sx \&BR  Ta    n         Ta    current   Ta    \&
 .It Sx \&DT  Ta    0         Ta    current  .It Sx \&DT  Ta    0         Ta    current   Ta    \&
 .It Sx \&I   Ta    n         Ta    next-line  .It Sx \&I   Ta    n         Ta    next-line Ta    \&
 .It Sx \&IB  Ta    n         Ta    current  .It Sx \&IB  Ta    n         Ta    current   Ta    \&
 .It Sx \&IR  Ta    n         Ta    current  .It Sx \&IR  Ta    n         Ta    current   Ta    \&
 .It Sx \&PD  Ta    n         Ta    current  .\" .It Sx \&PD  Ta    n         Ta    current   Ta    compat
 .It Sx \&R   Ta    n         Ta    next-line  .It Sx \&R   Ta    n         Ta    next-line Ta    \&
 .It Sx \&RB  Ta    n         Ta    current  .It Sx \&RB  Ta    n         Ta    current   Ta    \&
 .It Sx \&RI  Ta    n         Ta    current  .It Sx \&RI  Ta    n         Ta    current   Ta    \&
 .It Sx \&SB  Ta    n         Ta    next-line  .It Sx \&SB  Ta    n         Ta    next-line Ta    \&
 .It Sx \&SM  Ta    n         Ta    next-line  .It Sx \&SM  Ta    n         Ta    next-line Ta    \&
 .It Sx \&TH  Ta    >1, <6    Ta    current  .It Sx \&TH  Ta    >1, <6    Ta    current   Ta    \&
 .It Sx \&UC  Ta    n         Ta    current  .\" .It Sx \&UC  Ta    n         Ta    current   Ta    compat
 .It Sx \&br  Ta    0         Ta    current  .It Sx \&br  Ta    0         Ta    current   Ta    compat
 .It Sx \&fi  Ta    0         Ta    current  .It Sx \&fi  Ta    0         Ta    current   Ta    compat
 .It Sx \&i   Ta    n         Ta    current  .It Sx \&i   Ta    n         Ta    current   Ta    compat
 .It Sx \&na  Ta    0         Ta    current  .It Sx \&na  Ta    0         Ta    current   Ta    compat
 .It Sx \&nf  Ta    0         Ta    current  .It Sx \&nf  Ta    0         Ta    current   Ta    compat
 .It Sx \&r   Ta    0         Ta    current  .It Sx \&r   Ta    0         Ta    current   Ta    compat
 .It Sx \&sp  Ta    1         Ta    current  .It Sx \&sp  Ta    1         Ta    current   Ta    compat
   .\" .It Sx \&Sp  Ta    0         Ta    current   Ta    compat
   .\" .It Sx \&Vb  Ta    <1        Ta    current   Ta    compat
   .\" .It Sx \&Ve  Ta    0         Ta    current   Ta    compat
 .El  .El
 .  .
 .Pp  .Pp
 The  Macros marked as
 .Sx \&PD ,  .Qq compat
 .Sx \&RS ,  are included for compatibility with the significant corpus of existing
 .Sx \&RE ,  manuals that mix dialects of roff.  These macros should not be used for
 .Sx \&UC ,  portable
 .Sx \&br ,  .Nm
 .Sx \&fi ,  manuals.
 .Sx \&i ,  
 .Sx \&na ,  
 .Sx \&nf ,  
 .Sx \&r ,  
 and  
 .Sx \&sp  
 macros should not be used.  They're included for compatibility.  
 .  .
 .  .
 .Ss Block Macros  .Ss Block Macros
 Block macros are comprised of a head and body.  Like for in-line macros,  Block macros are comprised of a head and body.  Like for in-line macros,
 the head is scoped to the current line and, in one circumstance, the  the head is scoped to the current line and, in one circumstance, the
 next line; the body is scoped to subsequent lines and is closed out by a  next line (the next-line stipulations as in
 subsequent block macro invocation.  .Sx Line Macros
   apply here as well).
   .Pp
   The syntax is as follows:
 .Bd -literal -offset indent  .Bd -literal -offset indent
 \&.YO \(lBhead...\(rB  \&.YO \(lBhead...\(rB
 \(lBhead...\(rB  \(lBhead...\(rB
Line 504  sub-section, closed by a section or
Line 510  sub-section, closed by a section or
 .Sx \&SS ;  .Sx \&SS ;
 part, closed by a section, sub-section, or  part, closed by a section, sub-section, or
 .Sx \&RE ;  .Sx \&RE ;
 or paragraph, closed by a section, sub-section, part,  or paragraph, closed by a section, sub-section, part,
 .Sx \&HP ,  .Sx \&HP ,
 .Sx \&IP ,  .Sx \&IP ,
 .Sx \&LP ,  .Sx \&LP ,
Line 515  or
Line 521  or
 No closure refers to an explicit block closing macro.  No closure refers to an explicit block closing macro.
 .  .
 .Pp  .Pp
 .Bl -column "MacroX" "ArgumentsX" "Head ScopeX" "sub-sectionX" -compact -offset indent  As a rule, block macros may not be nested; thus, calling a block macro
 .It Em Macro Ta Em Arguments Ta Em Head Scope Ta Em Body Scope  while another block macro scope is open, and the open scope is not
 .It Sx \&HP  Ta    <2        Ta    current    Ta    paragraph  implicitly closed, is syntactically incorrect.
 .It Sx \&IP  Ta    <3        Ta    current    Ta    paragraph  .
 .It Sx \&LP  Ta    0         Ta    current    Ta    paragraph  .Pp
 .It Sx \&P   Ta    0         Ta    current    Ta    paragraph  .Bl -column -compact -offset indent "MacroX" "ArgumentsX" "Head ScopeX" "sub-sectionX" "compatX"
 .It Sx \&PP  Ta    0         Ta    current    Ta    paragraph  .It Em Macro Ta Em Arguments Ta Em Head Scope Ta Em Body Scope  Ta Em Notes
 .It Sx \&RE  Ta    0         Ta    current    Ta    none  .It Sx \&HP  Ta    <2        Ta    current    Ta    paragraph   Ta    \&
 .It Sx \&RS  Ta    1         Ta    current    Ta    part  .It Sx \&IP  Ta    <3        Ta    current    Ta    paragraph   Ta    \&
 .It Sx \&SH  Ta    >0        Ta    next-line  Ta    section  .It Sx \&LP  Ta    0         Ta    current    Ta    paragraph   Ta    \&
 .It Sx \&SS  Ta    >0        Ta    next-line  Ta    sub-section  .It Sx \&P   Ta    0         Ta    current    Ta    paragraph   Ta    \&
 .It Sx \&TP  Ta    n         Ta    next-line  Ta    paragraph  .It Sx \&PP  Ta    0         Ta    current    Ta    paragraph   Ta    \&
   .It Sx \&RE  Ta    0         Ta    current    Ta    none        Ta    compat
   .It Sx \&RS  Ta    1         Ta    current    Ta    part        Ta    compat
   .It Sx \&SH  Ta    >0        Ta    next-line  Ta    section     Ta    \&
   .It Sx \&SS  Ta    >0        Ta    next-line  Ta    sub-section Ta    \&
   .It Sx \&TP  Ta    n         Ta    next-line  Ta    paragraph   Ta    \&
 .El  .El
   .Pp
 .  .
   Macros marked
   .Qq compat
   are as mentioned in
   .Sx Line Macros .
   .
 .Pp  .Pp
 If a block macro is next-line scoped, it may only be followed by in-line  If a block macro is next-line scoped, it may only be followed by in-line
 macros (excluding  macros for decorating text.
 .Sx \&DT ,  
 .Sx \&PD ,  
 .Sx \&TH ,  
 .Sx \&UC ,  
 .Sx \&br ,  
 .Sx \&na ,  
 .Sx \&sp ,  
 .Sx \&nf ,  
 and  
 .Sx \&fi ) .  
 .  .
 .  .
 .Sh REFERENCE  .Sh REFERENCE
Line 563  and
Line 570  and
 .  .
 .  .
 .Ss \&BI  .Ss \&BI
 Text is rendered alternately in bold face and italic.  Thus,  Text is rendered alternately in bold face and italic.  Thus,
 .Sq .BI this word and that  .Sq .BI this word and that
 causes  causes
 .Sq this  .Sq this
 and  and
 .Sq and  .Sq and
 to render in bold face, while  to render in bold face, while
 .Sq word  .Sq word
 and  and
 .Sq that  .Sq that
Line 819  The
Line 826  The
 .Cm width  .Cm width
 argument must conform to  argument must conform to
 .Sx Scaling Widths .  .Sx Scaling Widths .
 If not specified, the saved or default width is used.  If not specified, the saved or default width is used.
 .  .
 .  .
 .Ss \&SB  .Ss \&SB
Line 896  See also
Line 903  See also
 .Sx \&P ,  .Sx \&P ,
 and  and
 .Sx \&PP .  .Sx \&PP .
   .\" .
   .\" .
   .\" .Ss \&PD
   .\" Has no effect.  Included for compatibility.
   .\" .
   .\" .
   .\" .Ss \&UC
   .\" Has no effect.  Included for compatibility.
 .  .
 .  .
 .Ss \&PD  
 Has no effect.  Included for compatibility.  
 .  
 .  
 .Ss \&UC  
 Has no effect.  Included for compatibility.  
 .  
 .  
 .Ss \&br  .Ss \&br
 Breaks the current line.  Consecutive invocations have no further effect.  Breaks the current line.  Consecutive invocations have no further effect.
 .Pp  .Pp
Line 960  Insert vertical spaces into output with the following 
Line 967  Insert vertical spaces into output with the following 
 .Op Cm height  .Op Cm height
 .Ed  .Ed
 .Pp  .Pp
 Insert  Insert
 .Cm height  .Cm height
 spaces, which must conform to  spaces, which must conform to
 .Sx Scaling Widths .  .Sx Scaling Widths .
Line 971  macro.  Defaults to 1, if unspecified.
Line 978  macro.  Defaults to 1, if unspecified.
 See also  See also
 .Sx \&br .  .Sx \&br .
 .  .
   .\" .Ss \&Sp
   .\" A synonym for
   .\" .Sx \&sp
   .\" .Cm 0.5v .
   .\" .
   .\" .Ss \&Vb
   .\" A synonym for
   .\" .Sx \&nf .
   .\" Accepts an argument (the height of the formatted space) which is
   .\" disregarded.
   .\" .
   .\" .Ss \&Ve
   .\" A synonym for
   .\" .Sx \&fi .
   .\" .
 .  .
 .Sh COMPATIBILITY  .Sh COMPATIBILITY
 This section documents compatibility with other roff implementations, at  This section documents areas of questionable portability between
 this time limited to  implementations of the
 .Xr groff 1 .  .Nm
   language.
 .Pp  .Pp
 .Bl -dash -compact  .Bl -dash -compact
 .It  .It
 The  In quoted literals, GNU troff allowed pair-wise double-quotes to produce
 .Xr groff 1  a standalone double-quote in formatted output.  It is not known whether
 .Sx \&i  this behaviour is exhibited by other formatters.
 macro will italicise all subsequent text if a line argument is not  
 provided.  This behaviour is not implemented.  
 .It  .It
 In quoted literals, groff allowed pair-wise double-quotes to produce a  Blocks of whitespace are stripped from macro and free-form text lines
 standalone double-quote in formatted output.  This idiosyncratic  (except when in literal mode) in mandoc.  This is not the case for GNU
 behaviour is no longer applicable.  troff: for maximum portability, whitespace sensitive blocks should be
   enclosed in literal contexts.
 .It  .It
 The  The
 .Sx \&sp  .Sx \&sp
 macro does not accept negative numbers.  macro does not accept negative values in mandoc.  In GNU troff, this
 .It  would result in strange behaviour.
 Blocks of whitespace are stripped from both macro and free-form text  
 lines (except when in literal mode), while groff would retain whitespace  
 in free-form text lines.  
 .El  .El
 .  .
 .  .

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