ref: e897df33e638dcc3768b8207146e2a4195dd3c4b
dir: /sys/man/6/man/
.TH MAN 6 .SH NAME man \- macros to typeset manual .SH SYNOPSIS .B nroff -man .I file ... .PP .B troff -man .I file ... .SH DESCRIPTION These macros are used to format pages of this manual. .PP Except in .L .LR and .L .RL requests, any text argument denoted .I t in the request summary may be zero to six words. Quotes \fL"\fP ... \fL"\fP may be used to include blanks in a `word'. If .I t is empty, the special treatment is applied to the next text input line (the next line that doesn't begin with dot). In this way, for example, .B .I may be used to italicize a line of more than 6 words, or .B .SM followed by .B .B to make small letters in `bold' font. .PP A prevailing indent distance is remembered between successive indented paragraphs, and is reset to default value upon reaching a non-indented paragraph. Default units for indents .I i are ens. .PP The fonts are .TP .B R roman, the main font, preferred for diagnostics .PD 0 .TP .B I italic, preferred for parameters, short names of commands, names of manual pages, and naked function names .TP .L B `bold', actually the constant width font, preferred for examples, file names, declarations, keywords, names of .B struct members, and literals (numbers are rarely literals) .TP .B L also the constant width font. In .I troff .BR L = B ; in .I nroff arguments of the macros .BR .L , .BR .LR , and .B .RL are printed in quotes; preferred only where quotes really help (e.g. lower-case literals and punctuation). .PD .LP Type font and size are reset to default values before each paragraph, and after processing font- or size-setting macros. .PP The .B -man macros admit equations and tables in the style of .IR eqn (1) and .IR tbl (1), but do not support arguments on .B .EQ and .B .TS macros. .PP These strings are predefined by .BR -man : .TP .B \e*R .if t `\*R', `(Reg)' in .if t .IR nroff . .if n `(Reg)', trademark symbol in .if n .IR troff . .br .ns .TP .B \e*S Change to default type size. .SH FILES .B /sys/lib/tmac/tmac.an .SH SEE ALSO .IR troff (1), .IR man (1) .SH REQUESTS .ta \w'.TH n c x 'u +\w'Cause 'u +\w'Argument\ 'u .di xx \ka .br .di .in \nau .ti0 Request Cause If no Explanation .ti0 Break Argument .ti0 \&\fL.B\fR \fIt\fR no \fIt\fR=n.t.l.* Text .I t is `bold'. .ti0 \&\fL.BI\fR \fIt\fR no \fIt\fR=n.t.l. Join words of .I t alternating bold and italic. .ti0 \&\fL.BR\fR \fIt\fR no \fIt\fR=n.t.l. Join words of .I t alternating bold and Roman. .ti0 \&\fL.DT\fR no Restore default tabs. .ti0 \&\fL.EE\fR yes End displayed example .ti0 \&\fL.EX\fR yes Begin displayed example .ti0 \&\fL.HP\fR \fIi\fR yes \fIi\fR=p.i.* Set prevailing indent to .IR i . Begin paragraph with hanging indent. .ti0 \&\fL.I\fR \fIt\fR no \fIt\fR=n.t.l. Text .I t is italic. .ti0 \&\fL.IB\fR \fIt\fR no \fIt\fR=n.t.l. Join words of .I t alternating italic and bold. .ti0 \&\fL.IP\fR \fIx i\fR yes \fIx\fR="" Same as \fL.TP\fP with tag .IR x . .ti0 \&\fL.IR\fR \fIt\fR no \fIt\fR=n.t.l. Join words of .I t alternating italic and Roman. .ti0 \&\fL.L\fR \fIt\fR no \fIt\fR=n.t.l. Text .I t is literal. .ti0 \&\fL.LP\fR yes Same as \fL.PP\fP. .ti0 \&\fL.LR\fR \fIt\fR no Join 2 words of .I t alternating literal and Roman. .ti0 \&\fL.PD\fR \fId\fR no \fId\fR=\fL.4v\fP Interparagraph distance is .IR d . .ti0 \&\fL.PP\fR yes Begin paragraph. Set prevailing indent to default. .ti0 \&\fL.RE\fR yes End of relative indent. Set prevailing indent to amount of starting \fL.RS\fP. .ti0 \&\fL.RI\fR \fIt\fR no \fIt\fR=n.t.l. Join words of .I t alternating Roman and italic. .ti0 \&\fL.RL\fR \fIt\fR no Join 2 or 3 words of .I t alternating Roman and literal. .ti0 \&\fL.RS\fR \fIi\fR yes \fIi\fR=p.i. Start relative indent, move left margin in distance .IR i . Set prevailing indent to default for nested indents. .ti0 \&\fL.SH\fR \fIt\fR yes \fIt\fR="" Subhead; reset paragraph distance. .ti0 \&\fL.SM\fR \fIt\fR no \fIt\fR=n.t.l. Text .I t is small. .ti0 \&\fL.SS\fR \fIt\fR no \fIt\fR="" Secondary subhead. .ti0 \&\fL.TF\fR \fIs\fR yes Prevailing indent is wide as string .I s in font .BR L ; paragraph distance is 0. .ti0 \&\fL.TH\fR \fIn c x\fR yes Begin page named .I n of chapter .IR c; .I x is extra commentary, e.g. `local', for page head. Set prevailing indent and tabs to default. .ti0 \&\fL.TP\fR \fIi\fR yes \fIi\fR=p.i. Set prevailing indent to .IR i . Restore default indent if .IR i =0. Begin indented paragraph with hanging tag given by next text line. If tag doesn't fit, place it on separate line. .ti0 \&\fL.1C\fR yes Equalize columns and return to 1-column output .ti0 \&\fL.2C\fR yes Start 2-column nofill output .PP .ti0 * n.t.l. = next text line; p.i. = prevailing indent .SH BUGS There's no way to fool .I troff into handling literal double quote marks .B \&" in font-alternation macros, such as .LR .BI . .br There is no direct way to suppress column widows in 2-column output; the column lengths may be adjusted by inserting .L .sp requests before the closing .LR .1C .