term% cat index.txt TBL(1) General Commands Manual TBL(1)
NAME
tbl - format tables for nroff or troff
SYNOPSIS
tbl [ file ... ]
DESCRIPTION
Tbl is a preprocessor for formatting tables for nroff or troff(1). The
input files are copied to the standard output, except for segments of
the form
.TS
options ;
format .
data
.T&
format .
data
. . .
.TE
which describe tables and are replaced by troff requests to lay out the
tables. If no arguments are given, tbl reads the standard input.
The (optional) options line is terminated by a semicolon and contains
one or more of
center center the table; default is left-adjust
expand make table as wide as current line length
box
doublebox
enclose the table in a box or double box
allbox enclose every item in a box
tab(x) use x to separate input items; default is tab
linesize(n)
set rules in n-point type
delim(xy)
recognize x and y as eqn(1) delimiters
Each line, except the last, of the obligatory format describes one row
of the table. The last line describes all rows until the next .T&,
where the format changes, or the end of the table at .TE. A format is
specified by key letters, one per column, either upper or lower case:
L
Left justify: the default for columns without format keys.
R
Right justify.
C
Center.
N
Numeric: align at decimal point (inferred for integers) or at
S
Span: extend previous column across this one.
A
Alphabetic: left-aligned within column, widest item centered,
indented relative to L rows.
^
Vertical span: continue item from previous row into this row.
-
Draw a horizontal rule in this column.
=
Draw a double horizontal rule in this column.
Key letters may be followed by modifiers, also either case:
| Draw vertical rule between columns.
|| Draw a double vertical rule between columns.
n Gap between column is n ens wide. Default is 3.
Ffont Use specified font. B and I mean FB and FI.
T Begin vertically-spanned item at top row of range; de‐
fault is vertical centering (with
Pn Use point size n.
Vn Use n-point vertical spacing in text block; signed n
means relative change.
W(n) Column width as a troff width specification. Parens are
optional if n is a simple integer.
E Equalize the widths of all columns marked E.
Each line of data becomes one row of the table; tabs separate items.
Lines beginning with are troff requests. Certain special data items
are recognized:
_
Draw a horizontal rule in this column.
=
Draw a double horizontal rule in this column. A data line con‐
sisting of a single or draws the rule across the whole table.
\_
Draw a rule only as wide as the contents of the column.
\Rx
Repeat character x across the column.
\^
Span the previous item in this column down into this row.
T{
The item is a text block to be separately formatted by troff and
placed in the table. The block continues to the next line be‐
ginning with T}. The remainder of the data line follows at that
point.
When it is used in a pipeline with eqn, the tbl command should be
first, to minimize the volume of data passed through pipes.
EXAMPLES
Let <tab> represent a tab (which should be typed as a genuine tab).
.TS
c s s
c c s
c c c
l n n.
Household Population
Town<tab>Households
<tab>Number<tab>Size
Bedminster<tab>789<tab>3.26
Bernards Twp.<tab>3087<tab>3.74
Bernardsville<tab>2018<tab>3.30
.TE
c s s
c c s
c c c
l n n.
Household Population
Town Households
Number Size
Bedminster 789 3.26
Bernards Twp. 3087 3.74
Bernardsville 2018 3.30
SOURCE
/sys/src/cmd/tbl
SEE ALSO
troff(1), eqn(1), doctype(1)
M. E. Lesk and L. L. Cherry, ``TBL—a Program to Format Tables'', Unix
Research System Programmer's Manual, Tenth Edition, Volume 2.
TBL(1)