version 1.69, 2009/10/24 05:52:13 |
version 1.84, 2010/02/17 19:22:50 |
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.Ss Text Decoration |
.Ss Text Decoration |
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), or P and R |
escape followed by an indicator: B (bold), I, (italic), R (Roman), or P |
(Roman, or reset). This form is not recommended for |
(revert to previous mode): |
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.Pp |
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.D1 \efBbold\efR \efIitalic\efP |
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.Pp |
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A numerical representation 3, 2, or 1 (bold, italic, and Roman, |
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respectively) may be used instead. A text decoration is valid within |
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the current font scope only: if a macro opens a font scope alongside |
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its own scope, such as |
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.Sx \&Bf |
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.Cm \&Sy , |
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in-scope invocations of |
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.Sq \ef |
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are only valid within the font scope of the macro. If |
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.Sq \ef |
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is specified outside of any font scope, such as in unenclosed, free-form |
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text, it will affect the remainder of the document. |
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.Pp |
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Text may also be sized with the |
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.Sq \es |
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escape, whose syntax is one of |
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.Sq \es+-n |
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for one-digit numerals; |
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.Sq \es(+-nn |
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or |
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.Sq \es+-(nn |
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for two-digit numerals; and |
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.Sq \es[+-N] , |
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.Sq \es+-[N] , |
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.Sq \es'+-N' , |
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or |
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.Sq \es+-'N' |
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for arbitrary-digit numerals: |
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.Pp |
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.D1 \es+1bigger\es-1 |
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.D1 \es[+10]much bigger\es[-10] |
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.D1 \es+(10much bigger\es-(10 |
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.D1 \es+'100'much much bigger\es-'100' |
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.Pp |
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Note these forms are |
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.Em not |
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recommended for |
.Nm , |
.Nm , |
which encourages semantic, not presentation, 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 212 In free-form mode, quotes are regarded as opaque text. |
|
Line 252 In free-form mode, quotes are regarded as opaque text. |
|
.Ss Dates |
.Ss Dates |
There are several macros in |
There are several macros in |
.Nm |
.Nm |
that require a date argument. The |
that require a date argument. The canonical form for dates is the |
.Em canonical form |
American format: |
for dates is the American format: |
|
.Pp |
.Pp |
.D1 Cm Month Day , Year |
.D1 Cm Month Day , Year |
.Pp |
.Pp |
Line 226 value is the full month name. The |
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Line 265 value is the full month name. The |
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.Cm Year |
.Cm Year |
value is the full four-digit year. |
value is the full four-digit year. |
.Pp |
.Pp |
The |
Reduced form dates are broken-down canonical form dates: |
.Em non-canonical form |
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is the same as the canonical form, but without the comma between the |
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.Cm Day |
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and |
|
.Cm Year |
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field. |
|
.Pp |
.Pp |
Lastly, |
.D1 Cm Month , Year |
.Em reduced form |
.D1 Cm Year |
dates range from only a |
|
.Cm Year |
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to the full canonical or non-canonical form. |
|
.Pp |
.Pp |
Some examples of valid dates follow: |
Some examples of valid dates follow: |
.Pp |
.Pp |
.D1 "May, 2009" Pq reduced form |
.D1 "May, 2009" Pq reduced form |
.D1 "2009" Pq reduced form |
.D1 "2009" Pq reduced form |
.D1 "May 20, 2009" Pq canonical form |
.D1 "May 20, 2009" Pq canonical form |
.D1 "May 20 2009" Pq non-canonical form |
|
. |
. |
.Ss Scaling Widths |
.Ss Scaling Widths |
Many macros support scaled widths for their arguments, such as |
Many macros support scaled widths for their arguments, such as |
|
|
.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 374 The sections in a |
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Line 403 The sections in a |
|
.Nm |
.Nm |
document are conventionally ordered as they appear above. Sections |
document are conventionally ordered as they appear above. Sections |
should be composed as follows: |
should be composed as follows: |
.Bl -tag -width Ds -offset Ds |
.Bl -ohang -offset Ds |
.It NAME |
.It Em NAME |
Must contain at least one |
The name(s) and a short description of the documented material. The |
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syntax for this as follows: |
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.Bd -literal -offset indent |
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\&.Nm name0 |
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\&.Nm name1 |
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\&.Nm name2 |
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\&.Nd a short description |
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.Ed |
|
.Pp |
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The |
.Sx \&Nm |
.Sx \&Nm |
followed by |
macro(s) must precede the |
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.Sx \&Nd |
|
macro. |
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.Pp |
|
See |
|
.Sx \&Nm |
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and |
.Sx \&Nd . |
.Sx \&Nd . |
The name needs re-stating since one |
. |
.Nm |
.It Em LIBRARY |
documents can be used for more than one utility or function, such as |
The name of the library containing the documented material, which is |
.Xr grep 1 |
assumed to be a function in a section 2 or 3 manual. The syntax for |
also being referenced as |
this is as follows: |
.Xr egrep 1 |
.Bd -literal -offset indent |
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\&.Lb libarm |
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.Ed |
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.Pp |
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See |
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.Sx \&Lb . |
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. |
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.It Em SYNOPSIS |
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Documents the utility invocation syntax, function call syntax, or device |
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configuration. |
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.Pp |
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For the first, utilities (sections 1, 6, and 8), this is |
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generally structured as follows: |
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.Bd -literal -offset indent |
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\&.Nm foo |
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\&.Op Fl v |
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\&.Op Fl o Ar file |
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\&.Op Ar |
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\&.Nm bar |
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\&.Op Fl v |
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\&.Op Fl o Ar file |
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\&.Op Ar |
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.Ed |
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.Pp |
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For the second, function calls (sections 2, 3, 9): |
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.Bd -literal -offset indent |
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\&.Vt extern const char *global; |
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\&.In header.h |
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\&.Ft "char *" |
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\&.Fn foo "const char *src" |
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\&.Ft "char *" |
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\&.Fn bar "const char *src" |
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.Ed |
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.Pp |
|
And for the third, configurations (section 4): |
|
.Bd -literal -offset indent |
|
\&.Cd \*qit* at isa? port 0x2e\*q |
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\&.Cd \*qit* at isa? port 0x4e\*q |
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.Ed |
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.Pp |
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Manuals not in these sections generally don't need a |
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.Em SYNOPSIS . |
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.Pp |
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See |
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.Sx \&Op , |
|
.Sx \&Cd , |
|
.Sx \&Fn , |
|
.Sx \&Ft , |
and |
and |
.Xr fgrep 1 . |
.Sx \&Vt . |
.It LIBRARY |
. |
.It SYNOPSIS |
.It Em DESCRIPTION |
.It DESCRIPTION |
This expands upon the brief, one-line description in |
.It IMPLEMENTATION NOTES |
.Em NAME . |
.It EXIT STATUS |
It usually contains a break-down of the options (if documenting a |
.It RETURN VALUES |
command), such as: |
.It ENVIRONMENT |
.Bd -literal -offset indent |
.It FILES |
The arguments are as follows: |
.It EXAMPLES |
\&.Bl \-tag \-width Ds |
.It DIAGNOSTICS |
\&.It Fl v |
.It ERRORS |
Print verbose information. |
.It SEE ALSO |
\&.El |
.It STANDARDS |
.Ed |
.It HISTORY |
.Pp |
.It AUTHORS |
Manuals not documenting a command won't include the above fragment. |
.It CAVEATS |
. |
.It BUGS |
.It Em IMPLEMENTATION NOTES |
.It SECURITY CONSIDERATIONS |
Implementation-specific notes should be kept here. This is useful when |
|
implementing standard functions that may have side effects or notable |
|
algorithmic implications. |
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. |
|
.It Em EXIT STATUS |
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Command exit status for section 1, 6, and 8 manuals. This section is |
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the dual of |
|
.Em RETURN VALUES , |
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which is used for functions. Historically, this information was |
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described in |
|
.Em DIAGNOSTICS , |
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a practise that is now discouraged. |
|
.Pp |
|
See |
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.Sx \&Ex . |
|
. |
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.It Em RETURN VALUES |
|
This section is the dual of |
|
.Em EXIT STATUS , |
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which is used for commands. It documents the return values of functions |
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in sections 2, 3, and 9. |
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.Pp |
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See |
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.Sx \&Rv . |
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. |
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.It Em ENVIRONMENT |
|
Documents any usages of environment variables, e.g., |
|
.Xr environ 7 . |
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.Pp |
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See |
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.Sx \&Ev . |
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. |
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.It Em FILES |
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Documents files used. It's helpful to document both the file and a |
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short description of how the file is used (created, modified, etc.). |
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.Pp |
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See |
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.Sx \&Pa . |
|
. |
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.It Em EXAMPLES |
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Example usages. This often contains snippets of well-formed, |
|
well-tested invocations. Make doubly sure that your examples work |
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properly! |
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. |
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.It Em DIAGNOSTICS |
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Documents error conditions. This is most useful in section 4 manuals. |
|
Historically, this section was used in place of |
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.Em EXIT STATUS |
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for manuals in sections 1, 6, and 8; however, this practise is |
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discouraged. |
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.Pp |
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See |
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.Sx \&Bl |
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.Fl diag . |
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. |
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.It Em ERRORS |
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Documents error handling in sections 2, 3, and 9. |
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.Pp |
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See |
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.Sx \&Er . |
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. |
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.It Em SEE ALSO |
|
References other manuals with related topics. This section should exist |
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for most manuals. Cross-references should conventionally be ordered |
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first by section, then alphabetically. |
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.Pp |
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See |
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.Sx \&Xr . |
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. |
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.It Em STANDARDS |
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References any standards implemented or used. If not adhering to any |
|
standards, the |
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.Em HISTORY |
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section should be used instead. |
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.Pp |
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See |
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.Sx \&St . |
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. |
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.It Em HISTORY |
|
The history of any manual without a |
|
.Em STANDARDS |
|
section should be described in this section. |
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. |
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.It Em AUTHORS |
|
Credits to authors, if applicable, should appear in this section. |
|
Authors should generally be noted by both name and an e-mail address. |
|
.Pp |
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See |
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.Sx \&An . |
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. |
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.It Em CAVEATS |
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Explanations of common misuses and misunderstandings should be explained |
|
in this section. |
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. |
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.It Em BUGS |
|
Extant bugs should be described in this section. |
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. |
|
.It Em SECURITY CONSIDERATIONS |
|
Documents any security precautions that operators should consider. |
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. |
.El |
.El |
. |
. |
. |
. |
Line 493 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 |
|
|
.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 |
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.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 673 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 710 this macro is not implemented in |
|
Line 909 this macro is not implemented in |
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.Ss \&%D |
.Ss \&%D |
Publication date of an |
Publication date of an |
.Sx \&Rs |
.Sx \&Rs |
block. This should follow the reduced syntax for |
block. This should follow the reduced or canonical form syntax |
|
described in |
.Sx Dates . |
.Sx Dates . |
Canonical or non-canonical form is not necessary since publications are |
|
often referenced only by year, or month and year. |
|
. |
. |
.Ss \&%I |
.Ss \&%I |
Publisher or issuer name of an |
Publisher or issuer name of an |
Line 759 block. This macro may also be used in a non-bibliogra |
|
Line 957 block. This macro may also be used in a non-bibliogra |
|
when referring to article titles. |
when referring to article titles. |
. |
. |
.Ss \&%U |
.Ss \&%U |
URI of current document. |
URI of reference document. |
. |
. |
.Ss \&%V |
.Ss \&%V |
Volume number of an |
Volume number of an |
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|
.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 884 Note that these parameters do not begin with a hyphen. |
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Line 1082 Note that these parameters do not begin with a hyphen. |
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.Pp |
.Pp |
Examples: |
Examples: |
.Bd -literal -offset indent |
.Bd -literal -offset indent |
\&.At |
\&.At |
\&.At V.1 |
\&.At V.1 |
.Ed |
.Ed |
.Pp |
.Pp |
|
|
.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. |
|
|
.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 1147 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 $\&Mdocdate$ , |
which signifies the current manual revision date dictated by |
which signifies the current manual revision date dictated by |
.Xr cvs 1 |
.Xr cvs 1 , |
or instead a valid canonical date as specified by |
or instead a valid canonical date as specified by |
.Sx Dates . |
.Sx Dates . |
|
If a date does not conform, the current date is used instead. |
.Pp |
.Pp |
Examples: |
Examples: |
.Bd -literal -offset indent |
.Bd -literal -offset indent |
|
|
.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 |
|
|
.Sx \&Er . |
.Sx \&Er . |
. |
. |
.Ss \&Dx |
.Ss \&Dx |
Format the DragonFlyBSD version provided as an argument, or a default |
Format the DragonFly BSD version provided as an argument, or a default |
value if no argument is provided. |
value if no argument is provided. |
.Pp |
.Pp |
Examples: |
Examples: |
|
|
.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 |
|
|
.Ss \&Lb |
.Ss \&Lb |
.Ss \&Li |
.Ss \&Li |
.Ss \&Lk |
.Ss \&Lk |
|
Format a hyperlink. The calling syntax is as follows: |
|
.Pp |
|
.D1 \. Ns Sx \&Lk Cm uri Op Cm name |
|
.Pp |
|
Examples: |
|
.Bd -literal -offset indent |
|
\&.Lk http://bsd.lv "The BSD.lv Project" |
|
\&.Lk http://bsd.lv |
|
.Ed |
|
.Pp |
|
See also |
|
.Sx \&Mt . |
|
. |
.Ss \&Lp |
.Ss \&Lp |
.Ss \&Ms |
.Ss \&Ms |
.Ss \&Mt |
.Ss \&Mt |
|
|
. |
. |
.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 |
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syntax. |
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.Pp |
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Note that this should not be confused with |
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.Sx \&Ft , |
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which is used for function return types. |
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.Pp |
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Examples: |
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.Bd -literal -offset indent |
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\&.Vt unsigned char |
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\&.Vt extern const char * const sys_signame[] ; |
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.Ed |
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.Pp |
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See also |
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.Sx \&Ft |
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and |
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.Sx \&Va . |
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. |
.Ss \&Xc |
.Ss \&Xc |
.Ss \&Xo |
.Ss \&Xo |
.Ss \&Xr |
.Ss \&Xr |
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Link to another manual |
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.Pq Qq cross-reference . |
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Its calling syntax is |
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.Pp |
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.D1 \. Ns Sx \&Xr Cm name section |
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.Pp |
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The |
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.Cm name |
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and |
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.Cm section |
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are the name and section of the linked manual. If |
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.Cm section |
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is followed by non-punctuation, an |
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.Sx \&Ns |
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is inserted into the token stream. This behaviour is for compatibility |
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with |
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.Xr groff 1 . |
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.Pp |
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Examples: |
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.Bd -literal -offset indent |
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\&.Xr mandoc 1 |
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\&.Xr mandoc 1 ; |
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\&.Xr mandoc 1 s behaviour |
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.Ed |
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. |
.Ss \&br |
.Ss \&br |
.Ss \&sp |
.Ss \&sp |
. |
. |
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.Pp |
.Pp |
.Bl -dash -compact |
.Bl -dash -compact |
.It |
.It |
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The comment syntax |
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.Sq \e." |
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is no longer accepted. |
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.It |
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In |
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.Xr groff 1 , |
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the |
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.Sx \&Pa |
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macro does not format its arguments when used in the FILES section under |
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certain list types. This irregular behaviour has been discontinued. |
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.It |
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Historic |
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.Xr groff 1 |
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does not print a dash for empty |
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.Sx \&Fl |
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arguments. This behaviour has been discontinued. |
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.It |
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.Xr groff 1 |
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behaves strangely (even between versions) when specifying |
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.Sq \ef |
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escapes within line-macro scopes. These aberrations have been |
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normalised. |
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.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 |
.Sq \&sp -1i . |
.Sx \&sp |
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.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 1653 standalone double-quote in formatted output. This idi |
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Line 2007 standalone double-quote in formatted output. This idi |
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behaviour is no longer applicable. |
behaviour is no longer applicable. |
.It |
.It |
Display types |
Display types |
.Sx \&Bd Fl center |
.Sx \&Bd |
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.Fl center |
and |
and |
.Fl right |
.Fl right |
are aliases for |
are aliases for |
Line 1683 made historic groff |
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Line 2038 made historic groff |
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.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 Fl nested |
.Sx \&It |
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.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 |
.Fl enum |
.Fl enum |