mandoc/mdoc.7 - diff

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Diff for /mandoc/mdoc.7 between version 1.194 and 1.199

version 1.194, 2011/08/01 07:45:11

version 1.199, 2011/08/16 23:44:58

Line 65 A macro line with only a control character and comment

is also ignored.

Macro lines with only a control character and optional whitespace are

stripped from input.

.Ss Reserved Terms

Within a macro line, the following terms are reserved:

.Pp

.Bl -tag -width Ds -offset indent -compact

.It \&.

.Pq period

.It \e.

.Pq escaped period

.It \&,

.Pq comma

.It \&:

.Pq colon

.It \&;

.Pq semicolon

.It \&(

.Pq left-parenthesis

.It \&)

.Pq right-parenthesis

.It \&[

.Pq left-bracket

.It \&]

.Pq right-bracket

.It \&?

.Pq question

.It \&!

.Pq exclamation

.It \&|

.Pq vertical bar

.It \e*(Ba

.Pq reserved-word vertical bar

.El

.Pp

For general use in macro lines, these can be escaped with a non-breaking

space

.Pq Sq \e& .

In text lines, these may be used as normal punctuation.

.Ss Special Characters

Special characters may occur in both macro and text lines.

Sequences begin with the escape character

Line 507 Print verbose information.

Line 471 Print verbose information.

.Ed

.Pp

Manuals not documenting a command won't include the above fragment.

.Pp

Since the

.Em DESCRIPTION

section usually contains most of the text of a manual, longer manuals

often use the

.Sx \&Ss

macro to form subsections.

In very long manuals, the

.Em DESCRIPTION

may be split into multiple sections, each started by an

.Sx \&Sh

macro followed by a non-standard section name, and each having

several subsections, like in the present

.Nm

manual.

.It Em IMPLEMENTATION NOTES

Implementation-specific notes should be kept here.

This is useful when implementing standard functions that may have side

Line 568 This section should exist for most manuals.

Line 547 This section should exist for most manuals.

Cross-references should conventionally be ordered first by section, then

alphabetically.

.Pp

References to other documentation concerning the topic of the manual page,

for example authoritative books or journal articles, may also be

provided in this section.

.Pp

See

.Sx \&Rs

and

.Sx \&Xr .

.It Em STANDARDS

References any standards implemented or used.

Line 579 section should be used instead.

Line 564 section should be used instead.

See

.Sx \&St .

.It Em HISTORY

A brief history of the subject, including where support first appeared.

A brief history of the subject, including where it was first implemented,

and when it was ported to or reimplemented for the operating system at hand.

.It Em AUTHORS

Credits to the person or persons who wrote the code and/or documentation.

Authors should generally be noted by both name and email address.

Line 628 For example,

Line 614 For example,

produces

.Sq Op Fl O Ar file .

To prevent a macro call and render the macro name literally,

escape it by prepending a non-breaking space,

escape it by prepending a zero-width space,

.Sq \e& .

For example,

.Sq \&Op \e&Fl O

Line 700 has multiple heads.

Line 686 has multiple heads.

.Pp

.Bl -column -compact -offset indent "MacroX" "CallableX" "ParsedX" "closed by XXXXXXXXXXX"

.It Em Macro Ta Em Callable Ta Em Parsed Ta Em Scope

.It Sx \&It Ta \&No Ta Yes Ta closed by Sx \&It , Sx \&El

.It Sx \&Nd Ta \&No Ta \&No Ta closed by Sx \&Sh

.It Sx \&Nm Ta \&No Ta Yes Ta closed by Sx \&Nm , Sx \&Sh , Sx \&Ss

.It Sx \&Sh Ta \&No Ta \&No Ta closed by Sx \&Sh

.It Sx \&Sh Ta \&No Ta Yes Ta closed by Sx \&Sh

.It Sx \&Ss Ta \&No Ta \&No Ta closed by Sx \&Sh , Sx \&Ss

.It Sx \&Ss Ta \&No Ta Yes Ta closed by Sx \&Sh , Sx \&Ss

.El

.Pp

Note that the

Line 762 and/or tail

Line 748 and/or tail

.It Sx \&Xo Ta Yes Ta Yes Ta closed by Sx \&Xc

.El

.Ss Block partial-implicit

Like block full-implicit, but with single-line scope closed by

Like block full-implicit, but with single-line scope closed by the

.Sx Reserved Terms

end of the line.

or end of line.

.Bd -literal -offset indent

\&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBbody...\(rB \(lBres...\(rB

.Ed

Line 810 these blocks have bodies, but no heads.

Line 795 these blocks have bodies, but no heads.

.It Sx \&Ta Ta Yes Ta Yes Ta closed by Sx \&Ta , Sx \&It

.El

.Ss In-line

Closed by

Closed by the end of the line, fixed argument lengths,

.Sx Reserved Terms ,

and/or subsequent macros.

end of line, fixed argument lengths, and/or subsequent macros.

In-line macros have only text children.

If a number (or inequality) of arguments is

.Pq n ,

Line 902 then the macro accepts an arbitrary number of argument

Line 886 then the macro accepts an arbitrary number of argument

.It Sx \&br Ta \&No Ta \&No Ta 0

.It Sx \&sp Ta \&No Ta \&No Ta 1

.El

.Ss Delimiters

When a macro argument consists of one single input character

considered as a delimiter, the argument gets special handling.

This does not apply when delimiters appear in arguments containing

more than one character.

Consequently, to prevent special handling and just handle it

like any other argument, a delimiter can be escaped by prepending

a zero-width space

.Pq Sq \e& .

In text lines, delimiters never need escaping, but may be used

as normal punctuation.

.Pp

For many macros, when the leading arguments are opening delimiters,

these delimiters are put before the macro scope,

and when the trailing arguments are closing delimiters,

these delimiters are put after the macro scope.

For example,

.Pp

.D1 Pf \. \&Aq "( [ word ] ) ."

.Pp

renders as:

.Pp

.D1 Aq ( [ word ] ) .

.Pp

Opening delimiters are:

.Pp

.Bl -tag -width Ds -offset indent -compact

.It \&(

left parenthesis

.It \&[

left bracket

.El

.Pp

Closing delimiters are:

.Pp

.Bl -tag -width Ds -offset indent -compact

.It \&.

period

.It \&,

comma

.It \&:

colon

.It \&;

semicolon

.It \&)

right parenthesis

.It \&]

right bracket

.It \&?

question mark

.It \&!

exclamation mark

.El

.Pp

Note that even a period preceded by a backslash

.Pq Sq \e.\&

gets this special handling; use

.Sq \e&.

to prevent that.

.Pp

Many in-line macros interrupt their scope when they encounter

delimiters, and resume their scope when more arguments follow that

are not delimiters.

For example,

.Pp

.D1 Pf \. \&Fl "a ( b | c \e*(Ba d ) e"

.Pp

renders as:

.Pp

.D1 Fl a ( b | c \*(Ba d ) e

.Pp

This applies to both opening and closing delimiters,

and also to the middle delimiter:

.Pp

.Bl -tag -width Ds -offset indent -compact

.It \&|

vertical bar

.El

.Pp

As a special case, the predefined string \e*(Ba is handled and rendered

in the same way as a plain

.Sq \&|

character.

Using this predefined string is not recommended in new manuals.

.Sh REFERENCE

This section is a canonical reference of all macros, arranged

alphabetically.

Line 991 Examples:

Line 1059 Examples:

.Dl \&.Ad 0x00000000

.Ss \&An

Author name.

Can be used both for the authors of the program, function, or driver

documented in the manual, or for the authors of the manual itself.

Requires either the name of an author or one of the following arguments:

.Pp

.Bl -tag -width "-nosplitX" -offset indent -compact

Line 1061 If an argument is not provided, the string

Line 1131 If an argument is not provided, the string

is used as a default.

.Pp

Examples:

.Dl \&.Fl o \&Ns \&Ar file1

.Dl ".Fl o Ar file"

.Dl \&.Ar

.Dl ".Ar"

.Dl \&.Ar arg1 , arg2 .

.Dl ".Ar arg1 , arg2 ."

.Pp

The arguments to the

.Sx \&Ar

macro are names and placeholders for command arguments;

for fixed strings to be passed verbatim as arguments, use

.Sx \&Fl

.Sx \&Cm .

.Ss \&At

Formats an AT&T version.

Accepts one optional argument:

Line 1120 The

Line 1198 The

must be one of the following:

.Bl -tag -width 13n -offset indent

.It Fl centered

Centre-justify each line.

Produce one output line from each input line, and centre-justify each line.

Using this display type is not recommended; many

.Nm

implementations render it poorly.

.It Fl filled

Left- and right-justify the block.

Change the positions of line breaks to fill each line, and left- and

right-justify the resulting block.

.It Fl literal

Do not justify the block at all.

Produce one output line from each input line,

and do not justify the block at all.

Preserve white space as it appears in the input.

Always use a constant-width font.

Use this for displaying source code.

.It Fl ragged

Only left-justify the block.

Change the positions of line breaks to fill each line, and left-justify

the resulting block.

.It Fl unfilled

An alias for

The same as

.Fl literal .

.Fl literal ,

but using the same font as for normal text, which is a variable width font

if supported by the output device.

.El

.Pp

The

Line 1149 which may be one of the following:

Line 1234 which may be one of the following:

.It

One of the pre-defined strings

.Cm indent ,

the width of standard indentation;

the width of a standard indentation (six constant width characters);

.Cm indent-two ,

twice

.Cm indent ;

Line 1326 except that dashes are used in place of bullets.

Line 1411 except that dashes are used in place of bullets.

.Fl inset ,

except that item heads are not parsed for macro invocations.

.\" but with additional formatting to the head.

Most often used in the

.Em DIAGNOSTICS

section with error constants in the item heads.

.It Fl enum

A numbered list.

No item heads can be specified.

Formatted like

.Fl bullet ,

except that cardinal numbers are used in place of bullets,

Line 1368 this head on the same output line.

Line 1456 this head on the same output line.

Otherwise, the body starts on the output line following the head.

.El

.Pp

Lists may be nested within lists and displays.

Nesting of

.Fl column

and

.Fl enum

lists may not be portable.

.Pp

See also

.Sx \&El

and

Line 1444 and

Line 1539 and

.Sx \&Ux .

.Ss \&Bt

Prints

.Dq is currently in beta test .

.Dq is currently in beta test.

.Ss \&Bx

Format the BSD version provided as an argument, or a default value if no

argument is provided.

.Pp

Examples:

.Dl \&.Bx 4.3 Tahoe

.Dl \&.Bx 4.4

.Dl \&.Bx

.Pp

Line 1466 and

Line 1562 and

Kernel configuration declaration.

This denotes strings accepted by

.Xr config 8 .

It is most often used in section 4 manual pages.

.Pp

Examples:

.Dl \&.Cd device le0 at scode?

Line 1478 declarations.

Line 1575 declarations.

This practise is discouraged.

.Ss \&Cm

Command modifiers.

Useful when specifying configuration options or keys.

Typically used for fixed strings passed as arguments, unless

.Sx \&Fl

is more appropriate.

Also useful when specifying configuration options or keys.

.Pp

Examples:

.Dl \&.Cm ControlPath

.Dl ".Nm mt Fl f Ar device Cm rewind"

.Dl \&.Cm ControlMaster

.Dl ".Nm ps Fl o Cm pid , Ns Cm command"

.Pp

.Dl ".Nm dd Cm if= Ns Ar file1 Cm of= Ns Ar file2"

See also

.Dl ".Cm IdentityFile Pa ~/.ssh/id_rsa"

.Sx \&Fl .

.Dl ".Cm LogLevel Dv DEBUG"

.Ss \&D1

One-line indented display.

This is formatted by the default rules and is useful for simple indented

Line 1805 See also

Line 1905 See also

and

.Sx \&It .

.Ss \&Em

Denotes text that should be emphasised.

Denotes text that should be

.Em emphasised .

Note that this is a presentation term and should not be used for

stylistically decorating technical terms.

Depending on the output device, this is usually represented

using an italic font or underlined characters.

.Pp

Examples:

.Dl \&.Em Warnings!

Line 1815 Examples:

Line 1918 Examples:

.Pp

See also

.Sx \&Bf ,

.Sx \&Sy ,

.Sx \&Li ,

.Sx \&No ,

and

.Sx \&Li .

.Sx \&Sy .

.Ss \&En

This macro is obsolete and not implemented in

.Xr mandoc 1 .

Line 1836 will emulate

Line 1940 will emulate

Error constants for definitions of the

.Va errno

libc global variable.

This is most often used in section 2 and 3 manual pages.

.Pp

Examples:

.Dl \&.Er EPERM

Line 1860 for general constants.

Line 1965 for general constants.

.Ss \&Ex

Insert a standard sentence regarding command exit values of 0 on success

and >0 on failure.

This is most often used in section 1, 6, and 8 manual pages.

Its syntax is as follows:

.Pp

.D1 Pf \. Sx \&Ex Fl std Op Ar utility ...

Line 1920 See also

Line 2026 See also

and

.Sx \&In .

.Ss \&Fl

Command-line flag.

Command-line flag or option.

Used when listing arguments to command-line utilities.

Prints a fixed-width hyphen

.Sq \-

Line 1930 If the argument is a macro, a hyphen is prefixed to th

Line 2036 If the argument is a macro, a hyphen is prefixed to th

output.

.Pp

Examples:

.Dl \&.Fl a b c

.Dl ".Fl R Op Fl H | L | P"

.Dl \&.Fl \&Pf a b

.Dl ".Op Fl 1AaCcdFfgHhikLlmnopqRrSsTtux"

.Dl \&.Fl

.Dl ".Fl type Cm d Fl name Pa CVS"

.Dl \&.Op \&Fl o \&Ns \&Ar file

.Dl ".Fl Ar signal_number"

.Dl ".Fl o Fl"

.Pp

See also

.Sx \&Cm .

Line 1950 Its syntax is as follows:

Line 2057 Its syntax is as follows:

Function arguments are surrounded in parenthesis and

are delimited by commas.

If no arguments are specified, blank parenthesis are output.

In the

.Em SYNOPSIS

section, this macro starts a new output line,

and a blank line is automatically inserted between function definitions.

.Pp

Examples:

.Dl \&.Fn \*qint funcname\*q \*qint arg0\*q \*qint arg1\*q

.Dl \&.Fn funcname \*qint arg0\*q

.Dl \&.Fn funcname arg0

.Pp

.Bd -literal -offset indent -compact

\&.Ft functype

\&.Fn funcname

Line 1964 When referring to a function documented in another man

Line 2076 When referring to a function documented in another man

.Sx \&Xr

instead.

See also

.Sx MANUAL STRUCTURE

.Sx MANUAL STRUCTURE ,

.Sx \&Fo ,

and

.Sx \&Ft .

.Ss \&Fo

Line 1991 Invocations usually occur in the following context:

Line 2104 Invocations usually occur in the following context:

.Sx \&Fo

scope is closed by

.Sx \&Fc .

.Pp

See also

.Sx MANUAL STRUCTURE ,

Line 1999 See also

Line 2113 See also

and

.Sx \&Ft .

.Ss \&Fr

This macro is obsolete and not implemented.

This macro is obsolete and not implemented in

.Xr mandoc 1 .

.Pp

It was used to show function return values.

The syntax was:

.Pp

.Dl Pf . Sx \&Fr Ar value

.Ss \&Ft

A function type.

Its syntax is as follows:

.Pp

.D1 Pf \. Sx \&Ft Ar functype

.Pp

In the

.Em SYNOPSIS

section, a new output line is started after this macro.

.Pp

Examples:

.Dl \&.Ft int

.Bd -literal -offset indent -compact

Line 2038 See also

Line 2162 See also

and

.Sx \&Ux .

.Ss \&Hf

This macro is obsolete and not implemented.

This macro is not implemented in

.Xr mandoc 1 .

.Pp

It was used to include the contents of a (header) file literally.

The syntax was:

.Pp

.Dl Pf . Sx \&Hf Ar filename

.Ss \&Ic

Designate an internal or interactive command.

This is similar to

Line 2046 This is similar to

Line 2176 This is similar to

but used for instructions rather than values.

.Pp

Examples:

.Dl \&.Ic :wq

.Dl \&.Ic hash

.Dl \&.Ic alias

.Pp

Line 2060 macro is used when referring to specific instructions.

Line 2191 macro is used when referring to specific instructions.

.Dq include

file.

In the

When invoked as the first macro on an input line in the

.Em SYNOPSIS

section (only if invoked as the line macro), the first argument is

section, the argument is displayed in angle brackets

preceded by

and preceded by

.Dq #include ,

the arguments is enclosed in angle brackets.

and a blank line is inserted in front if there is a preceding

function declaration.

This is most often used in section 2, 3, and 9 manual pages.

.Pp

Examples:

.Dl \&.In sys/types

.Dl \&.In sys/types.h

.Pp

See also

.Sx MANUAL STRUCTURE .

Line 2174 Examples:

Line 2307 Examples:

.Dl \&.Lb libz

.Dl \&.Lb mdoc

.Ss \&Li

Denotes text that should be in a literal font mode.

Denotes text that should be in a

.Li literal

font mode.

Note that this is a presentation term and should not be used for

stylistically decorating technical terms.

.Pp

On terminal output devices, this is often indistinguishable from

normal text.

.Pp

See also

.Sx \&Bf ,

.Sx \&Sy ,

.Sx \&Em ,

.Sx \&No ,

and

.Sx \&Em .

.Sx \&Sy .

.Ss \&Lk

Format a hyperlink.

Its syntax is as follows:

Line 2226 section subsequent the

Line 2365 section subsequent the

macro.

.Pp

Examples:

.Dl \&.Sx \&Nd mdoc language reference

.Dl Pf . Sx \&Nd mdoc language reference

.Dl \&.Sx \&Nd format and display UNIX manuals

.Dl Pf . Sx \&Nd format and display UNIX manuals

.Pp

The

.Sx \&Nd

Line 2279 macro rather than

Line 2418 macro rather than

.Sx \&Nm

to mark up the name of the manual page.

.Ss \&No

Normal text.

.Dq noop

Closes the scope of any preceding in-line macro.

macro used to terminate prior macro contexts.

When used after physical formatting macros like

.Sx \&Em

.Sx \&Sy ,

switches back to the standard font face and weight.

Can also be used to embed plain text strings in macro lines

using semantic annotation macros.

.Pp

Examples:

.Dl \&.Sx \&Fl ab \&No cd \&Fl ef

.Dl ".Em italic , Sy bold , No and roman"

.Pp

.Bd -literal -offset indent -compact

\&.Sm off

\&.Cm :C No / Ar pattern No / Ar replacement No /

\&.Sm on

.Ed

.Pp

See also

.Sx \&Em ,

.Sx \&Li ,

and

.Sx \&Sy .

.Ss \&Ns

Suppress a space.

Suppress a space between the output of the preceding macro

Following invocation, text is interpreted as free-form text until a

and the following text or macro.

macro is encountered.

Following invocation, input is interpreted as normal text

just like after an

.Sx \&No

macro.

.Pp

This has no effect when invoked at the start of a macro line.

.Pp

Examples:

.Dl \&.Fl o \&Ns \&Ar output

.Dl ".Ar name Ns = Ns Ar value"

.Dl ".Cm :M Ns Ar pattern"

.Dl ".Fl o Ns Ar output"

.Pp

See also

.Sx \&No

Line 2333 Examples:

Line 2495 Examples:

\&.Oc

.Ed

.Ss \&Op

Command-line option.

Optional part of a command line.

Used when listing options to command-line utilities.

Prints the argument(s) in brackets.

This is most often used in the

.Em SYNOPSIS

section of section 1 and 8 manual pages.

.Pp

Examples:

.Dl \&.Op \&Fl a \&Ar b

Line 2369 See also

Line 2533 See also

and

.Sx \&Dt .

.Ss \&Ot

Unknown usage.

This macro is obsolete and not implemented in

.Xr mandoc 1 .

.Pp

.Em Remarks :

Historical

this macro has been deprecated.

.Xr mdoc 7

packages described it as

.Dq "old function type (FORTRAN)" .

.Ss \&Ox

Format the

.Ox

Line 2393 See also

Line 2560 See also

and

.Sx \&Ux .

.Ss \&Pa

A file-system path.

An absolute or relative file system path, or a file or directory name.

If an argument is not provided, the string

If an argument is not provided, the character

.Dq \(ti

.Sq \(ti

is used as a default.

.Pp

Examples:

Line 2408 See also

Line 2575 See also

Close parenthesised context opened by

.Sx \&Po .

.Ss \&Pf

Removes the space

Removes the space between its argument

.Pq Dq prefix

between its arguments.

and the following macro.

Its syntax is as follows:

.Pp

.D1 Pf \. \&Pf Ar prefix suffix

.D1 .Pf Ar prefix macro arguments ...

.Pp

The

This is equivalent to:

.Ar suffix

argument may be a macro.

.Pp

.D1 .No Ar prefix No \&Ns Ar macro arguments ...

.Pp

Examples:

.Dl \&.Pf \e. \&Sx \&Pf \&Ar prefix suffix

.Dl ".Pf $ Ar variable_name"

.Dl ".Pf 0x Ar hex_digits"

.Pp

See also

.Sx \&Ns

and

.Sx \&Sm .

.Ss \&Po

Multi-line version of

.Sx \&Pq .

Line 2428 Multi-line version of

Line 2601 Multi-line version of

Break a paragraph.

This will assert vertical space between prior and subsequent macros

and/or text.

.Pp

Paragraph breaks are not needed before or after

.Sx \&Sh

.Sx \&Ss

macros or before displays

.Pq Sx \&Bd

or lists

.Pq Sx \&Bl

unless the

.Fl compact

flag is given.

.Ss \&Pq

Parenthesised enclosure.

.Pp

Line 2447 Multi-line version of

Line 2632 Multi-line version of

.Sx \&Qq .

.Ss \&Qq

Encloses its arguments in

.Dq typewriter

.Qq typewriter

double-quotes.

Consider using

.Sx \&Dq .

Line 2534 custom sections be used.

Line 2719 custom sections be used.

.Pp

Section names should be unique so that they may be keyed by

.Sx \&Sx .

Although this macro is parsed, it should not consist of child node or it

may not be linked with

.Sx \&Sx .

.Pp

See also

.Sx \&Pp ,

Line 2558 Multi-line version of

Line 2746 Multi-line version of

.Sx \&Sq .

.Ss \&Sq

Encloses its arguments in

.Dq typewriter

.Sq typewriter

single-quotes.

.Pp

See also

Line 2567 See also

Line 2755 See also

and

.Sx \&So .

.Ss \&Ss

Begin a new sub-section.

Begin a new subsection.

Unlike with

.Sx \&Sh ,

there's no convention for sub-sections.

there is no convention for the naming of subsections.

Conventional sections, as described in

Except

.Sx MANUAL STRUCTURE ,

.Em DESCRIPTION ,

rarely have sub-sections.

the conventional sections described in

.Sx MANUAL STRUCTURE

rarely have subsections.

.Pp

Sub-section names should be unique so that they may be keyed by

.Sx \&Sx .

Although this macro is parsed, it should not consist of child node or it

may not be linked with

.Sx \&Sx .

.Pp

See also

.Sx \&Pp ,

Line 2658 The following standards are recognised:

Line 2851 The following standards are recognised:

.St -xpg4

.It \-xpg4.2

.St -xpg4.2

.It \-xpg4.3

.St -xpg4.3

.It \-xbd5

.St -xbd5

Line 2681 The following standards are recognised:

Line 2875 The following standards are recognised:

.St -svid4

.El

.Ss \&Sx

Reference a section or sub-section.

Reference a section or subsection in the same manual page.

The referenced section or sub-section name must be identical to the

The referenced section or subsection name must be identical to the

enclosed argument, including whitespace.

.Pp

Examples:

Line 2700 stylistically decorating technical terms.

Line 2894 stylistically decorating technical terms.

.Pp

See also

.Sx \&Bf ,

.Sx \&Em ,

.Sx \&Li ,

and

.Sx \&Em .

.Sx \&No .

.Ss \&Ta

Table cell separator in

.Sx \&Bl Fl column

Line 2711 lists; can only be used below

Line 2906 lists; can only be used below

.Ss \&Tn

Format a tradename.

.Pp

Since this macro is often implemented to use a small caps font,

it has historically been used for acronyms (like ASCII) as well.

Such usage is not recommended because it would use the same macro

sometimes for semantical annotation, sometimes for physical formatting.

.Pp

Examples:

.Dl \&.Tn IBM

.Ss \&Ud

Prints out

.Dq currently under development .

.Dq currently under development.

.Ss \&Ux

Format the UNIX name.

Accepts no argument.

Line 2745 This is also used for indicating global variables in t

Line 2945 This is also used for indicating global variables in t

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

syntax when invoked as the first macro on an input line in the

.Em SYNOPSIS

section, else it accepts ordinary

.Sx In-line

syntax.

In the former case, this macro starts a new output line,

and a blank line is inserted in front if there is a preceding

function definition or include directive.

.Pp

Note that this should not be confused with

.Sx \&Ft ,

Line 2917 In new groff and mandoc, any list may be nested by def

Line 3120 In new groff and mandoc, any list may be nested by def

lists will restart the sequence only for the sub-list.

.It

.Sx \&Li

followed by a reserved character is incorrectly used in some manuals

followed by a delimiter is incorrectly used in some manuals

instead of properly quoting that character, which sometimes works with

historic groff.

.It

Line 3008 This is not supported by mandoc.

Line 3211 This is not supported by mandoc.

.Xr mandoc 1 ,

.Xr eqn 7 ,

.Xr man 7 ,

.Xr mandoc_char 7

.Xr mandoc_char 7 ,

.Xr roff 7 ,

.Xr tbl 7

.Sh HISTORY

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