AT&T UNIX™PC Unix System V Users Manual - tenox

CW(l) CW {l)
NAME
cw, checkcw - prepare constant-width text for troff
SYNOPSIS
cw [ -Ixx ] [ -rxx ] [ -fn ] [ -t ] [ +t ] [ -d ] [ files ]
checkcw [ -Ixx ] [ -rxx ] files
DESCRIPTION
Cw is a preprocessor for troff (not included on the UNIX PC) input
files that contain text to be typeset in the constant-width ( CW)
font.
Text typeset with the CW font resembles the output of terminals
and of line printers. This font is used to typeset examples of programs
and of computer output in user manuals, programming
texts, etc. (An earlier version of this font was used in typesetting
The C Programming Language by B. W. Kernighan and D. M.
Ritchie.) It has been designed to be quite distinctive (but not
overly obtrusive) when used together with the Times Roman font.
Because the CW font contains a "non-standard" set of characters
and because text typeset with it requires different character and
inter-word spacing than is used for "standard" fonts, documents
that use the CW font must be preprocessed by cw.
The CW font contains the 94 printing ASCII characters:
abcdefghijklmnopqrstuvwxyz
ABCDEFGHIJKLMNOPQRSTUVWXYZ
0123456789
!$%&()" * •-II < >{}#\
+@.,/:;=?111-plus
eight non-ASCII characters represented by four-character troff
names (in some cases attaching these names to "non-standard"
graphics):
Character
Symbol Troff Name
"Cents" sign
EBCDIC "not" sign
Left arrow
Right arrow
Down arrow
Vertical single quote
Control-shift indicator
Visible space indicator
Hyphen
--+
!
I
t
\(ct
\(no
\(
\(da
\(fm
\(dg
\(sq
\(hy
The hyphen is a synonym for the unadorned minus sign (-). Certain
versions of cw recognize two additional names: \(ua. for an
up arrow (i) and \(Ih for a diagonal left-up (home) arrow.
Cw recognizes five request lines, as well as user-defined delimiters.
The request lines look like troff macro requests, and are copied in
their entirety by cw onto its output; thus, they can be defined by
the user as troff macros; in fact, the .CW and .CN macros should
be so defined (see HINTS below). The five requests are:
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