Only the differences between GNU
tbl
and Unix
tbl
are described here.
Normally
tbl
attempts to prevent undesirable breaks in the table by using diversions.
This can sometimes interact badly with macro packages' own use of diversions,
when footnotes, for example, are used.
The
nokeep
option tells
tbl
not to try and prevent breaks in this way.
The
decimalpoint
option specifies the character to be recognized as the decimal
point character in place of the default period.
It takes an argument in parentheses, which must be a single
character, as for the
tab
option.
The
f
format modifier can be followed by an arbitrary length
font name in parentheses.
There is a
d
format modifier which means that a vertically spanning entry
should be aligned at the bottom of its range.
There is no limit on the number of columns in a table, nor any limit
on the number of text blocks.
All the lines of a table are considered in deciding column
widths, not just the first 200.
Table continuation
( .T& )
lines are not restricted to the first 200 lines.
Numeric and alphabetic items may appear in the same column.
Numeric and alphabetic items may span horizontally.
tbl
uses register, string, macro and diversion names beginning with
3 .
When using
tbl
you should avoid using any names beginning with a
3 .
You should use
.TS\ H / .TH
in conjunction with a supporting macro package for
all
multi-page boxed tables.
If there is no header that you wish to appear at the top of each page
of the table, place the
.TH
line immediately after the format section.
Do not enclose a multi-page table within keep/release macros,
or divert it in any other way.
A text block within a table must be able to fit on one page.
The
bp
request cannot be used to force a page-break in a multi-page table.
Instead, define
BP
as follows
.de BP
.ie '\e\en(.z'' .bp \e\e$1
.el \e!.BP \e\e$1
..
and use
BP
instead of
bp .
Using \ea directly in a table to get leaders will not work.
This is correct behaviour: \ea is a
uninterpreted
leader.
To get leaders use a real leader, either by using a control A or like
this: