xref: /netbsd/distrib/notes/common/macros (revision c4a72b64)
$NetBSD: macros,v 1.23 2002/07/22 16:45:14 lukem Exp $

Copyright (c) 1999-2002 The NetBSD Foundation, Inc.
All rights reserved.

This code is derived from software contributed to The NetBSD Foundation
by Ross Harvey.

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-------------------- MACROS --------------------
. . Define a .CURDIR-relative include, with entertainment
. .rn so so-real . tm ...reading \\$1 . Pp . so-real \*[.CURDIR]/\\$1 tm ...back to INSTALL
.. .als source so . -mdoc only has only two section levels (Sh & Ss)
. second-level subsection macro (third-level section)
. . ie rHTML <h5><a name="\\$*">\\$*</a></h5> . el \{\ . br . if t .ne 7P . Pp . Em "\\$*" . Pp . \} .. . . Standard indented literal display, with nice showmatch parens in the name.
Be warned that using font change macros such as `Ic', `Em' and `Sy' inside
may cause formatting problems further on; this is probably a bug in the
mdoc macros...
. . Bd -literal -offset indent .. . . Ed .. . . . br . if t .ne \\$1 .. . . . Tagged lists:
(tag wid rest Creates a tag with width wid and other args rest
tag) End sequence

. . Bl -tag -width \\$* .. . . El .. . . (tag Note: . It Em Note: .. . . tag) .. . Bullet list, which swaps between bullet and hyphen at each alternate
indent level.
. .nr b_or_h 1 . . ie \\n[b_or_h] .Bl -bullet \\$* . el .Bl -hyphen \\$* . nr b_or_h 1-\\n[b_or_h] . It .. . . El . nr b_or_h 1-\\n[b_or_h] .. . Enumerated list

. . Bl -enum \\$* . It .. . . El .. . Item list

. . Bl -item \\$* . It .. . . El .. . Generate NetBSD/${MACHINE}, with NetBSD being done with .Nx.
If there's trailing args to the macro, concatenate with no space.
. .. . Key-cap; literal text one point size smaller
. .Li \\$* .. . . Macro for `UNIX-like', since we don't want to just use `UNIX'
. x -like .. . setsize <G> <U>
Remember <G> and <U> for the next showsize
showsize [<G> <U>]
Display "<G> MB gzipped, <U> MB uncompressed" on a new line,
and then reset the values of <G> and <U> to '-unset-'.
Values can be generated with something like this:
gzip -l *.tgz | \
awk '/\.tar/ { printf ".if \\n[%s] .setsize %d %d\n", \
substr($4,0,index($4, "/")-1), \
( $1+1048575 ) /1048576, \
( $2 + 1048575) / 1048576 } '

. \.ds set_gzip \\$[1] \.ds set_gunzip \\$[2] ..

.Em \\*[set_gzip] MB gzipped, \\*[set_gunzip] MB uncompressed .setsize -unset- -unset- .. .setsize -unset- -unset- . .Bc/.Ec; begin/end two-column mode. This may not work in all
cases, but was designed for common/donations. There is no
support for more than two pages, nor for right-margins.
Usage:
.Bc [ncol]
Dependancies:
macro CF page trap macro for bottom of column
macro CZ code duplication; handling of diversion interpolation.
macro CC diversion trap macro for subdividing into pages.
macro Bc Begin columns
macro Ec End columns
reg cl current column number
reg CI saved indent
reg CL saved line-length
reg CO saved page offset
reg CN number of columns
reg CA max height of columnized text
reg CB save available space on page
reg CE column spacing
str C0 entire columnization region [if crosses page boundary]
str C1 columnization region for page 1
str C2 columnization region for page 2
. TRAP2 \" debugging: here's where the trap is.
.po +\\n(CEu \" space to next column .ns .\} .po \\n(COu \" restore offset .\} ..

\" Save position .nr cl 0 1 \" This is column #0 .nr CL \\n(.l \" Save the linelength .nr CI \\n(.i \" Save the indent .nr CO \\n(.o \" Save the offset

 .ll 20n \" this doesn't work in nf-mode.
.wh \\n(CDu CF \" set the bottom of column trap .\\$1 \" throw in the diverted text .ch CF \" remove trap .. TRAP1 \" debugging
.di \" close first-page (C1) diversion .di C2 \" open second-page (C2) diversion .. .nr CN 2 \" Number of columns .ev 2 .di C1 \" divert the text
..
.di \" end diversion
.ev
.nr CA \\n(dnu/\\n(CN \" save max height of columnized text
.nr CB \\n(.t-(\\n(.v*3) \" save available space on page
.nr CE \\n(.lu/\\n(CN
 .tm The diversion is \\n(dnu high and \\n(dlu wide. At \\n(CN columns,
.tm the max height would be \\n(CAu high, if they fit on the same page.
.tm The page length is \\n(.p, and the current vposition is \\n(nl, not to
.tm be confused with the page offset of \\n(.o.
.tm So we have \\n(CBu of space on this page.
.rn C1 C0 \" put original in C0 .ev 2 .di C1 \" Divert the first page into new C1 Diversion trap location in solid kludgite. If notCRT, we need
extra v-height. go figure.
.C0 .di .ev

 Trap at bottom of page
.nr CD \\n(nlu+\\n(.tu-2v) \" trap right before next trap .\} Trap at the bottom of the text. All on one page.
.nr CD \\n(CAu+\\n(nlu .\} .CZ C1 The .if dxxx construct is groff-specific
.nr CA \\n(dnu/\\n(CN \" save max height of columnized text .nr CD \\n(CAu+\\n(nlu .CZ C2 .\} These should already be restored. But sometimes we don't hit
the last page trap [??]
.po \\n(COu \" restore offset
\" fill again. .. Unfortunately, none of the above works with -mdoc2html; so we'll
just replace columns with a regular Bd -unfilled -offset indent.
d -unfilled -offset indent .. .als Ec Ed .\} . Macros to support Table of Contents
TOC is set (from the command line) if we're generating the TOC file;
the TOC file is read from groff's stderr.
Usage:
.Sh section header
.Ss subsection header
.Ss2 sub2section header
.Te depth "item" Explicit toc entry, not based on other markup
.To depth "item" Like Te, but don't echo the item
XXX To should be unnecessary if we handle parseable/callable.
.Tc import the TOC
.Ti depth page "item" (internal) output an entry
.rn Ss Ss-toc .Ss-toc \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9 \.tm .Ti 0 \\n% \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9 .. .rn Ss2 Ss2-toc .Ss2-toc \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9 \.tm .Ti 1 \\n% \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9 .. .\} .. .. \h'3n*\\$1u' <a href="#\\$3">\\$3</a>\a\\$2 .\} .. d -literal \.tm ...reading INSTALL.\*[format].toc . Pp Use so-real here becuase otherwise we lose on objdirs
\.so-real INSTALL.\*[format].toc .Ed .. . . -------------------- MISC --------------------
. set the unused target number registers to 0, so that we can turn on all
the warnings but still do things like .if \n[amiga]:\n[alpha] stuff
(The Makefile defines the target as 1, leaving the others undefined.)
. . while \\n[.$] \{\ . if !r\\$1 .nr \\$1 0 . shift . \} .. . . Supported MACHINE_ARCHs:
.as MACHINE_ARCH_LIST " powerpc sh3eb sh3el sparc sparc64 vax x86_64 . Define registers for MACHINE_ARCHs with multiple or different MACHINEs
. . Other strings available:

\*M ${MACHINE} (e.g., `i386')
\*A ${MACHINE_ARCH} (e.g., `m68k')
\*V Version (e.g., `1.5')
\*[.CURDIR] ${.CURDIR}