286 lines
4.2 KiB
Text
286 lines
4.2 KiB
Text
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.TH TBL 1
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.SH NAME
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tbl \- format tables for nroff or troff
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.SH SYNOPSIS
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.B tbl
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[
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.I file ...
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]
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.SH DESCRIPTION
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.I Tbl
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is a preprocessor for formatting tables for
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.I nroff
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or
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.IR troff (1).
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The input
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.I files
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are copied to the standard output,
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except for segments of the form
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.IP
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.nf
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.B .TS
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.IB options " ;
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.IB format " .
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.I data
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.B .T&
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.IB format " .
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.I data
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\&. . .
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.B .TE
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.fi
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.LP
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which describe tables
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and are replaced by
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.I troff
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requests to lay out the tables.
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If no arguments are given,
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.I tbl
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reads the standard input.
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.PP
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The (optional)
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.I options
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line is terminated by a semicolon and contains one or more
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of
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.RS
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.TF linesize(n)
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.TP
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.B center
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center the table; default is left-adjust
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.TP
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.B expand
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make table as wide as current line length
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.TP
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.B box
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.TP
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.B doublebox
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enclose the table in a box or double box
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.TP
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.B allbox
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enclose every item in a box
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.TP
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.BI tab( x )
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use
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.I x
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to separate input items; default is tab
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.TP
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.BI linesize( n )
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set rules in
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.IR n -point
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type
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.TP
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.BI delim( xy )
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recognize
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.I x
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and
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.I y
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as
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.IR eqn (1)
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delimiters
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.PD
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.RE
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.PP
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Each line, except the last, of the obligatory
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.I format
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describes one row of the table.
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The last line describes all rows until the next
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.BR .T& ,
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where the format changes,
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or the end of the table at
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.BR .TE .
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A format is specified by key letters, one per column, either upper or lower case:
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.RS
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.TP 0
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.B L
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Left justify: the default for
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columns without format keys.
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.PD0
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.TP
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.B R
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Right justify.
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.TP
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.B C
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Center.
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.TP
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.B N
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Numeric: align at decimal point (inferred for integers) or at
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.LR \e& .
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.TP
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.B S
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Span: extend previous column across this one.
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.TP
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.B A
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Alphabetic: left-aligned within column, widest item centered, indented relative to
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.B L
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rows.
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.TP
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.B ^
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Vertical span: continue item from previous row into this row.
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.TP
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.B -
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Draw a horizontal rule in this column.
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.TP
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.B =
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Draw a double horizontal rule in this column.
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.PD
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.RE
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.PP
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Key letters may be followed by modifiers, also either case:
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.RS
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.TP \w'\fLF\fIfont\fLXX'u
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.B |
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Draw vertical rule between columns.
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.PD0
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.TP
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.B ||
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Draw a double vertical rule between columns.
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.TP
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.I n
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Gap between column is
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.I n
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ens wide.
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Default is 3.
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.TP
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.BI F font
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Use specified
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.IR font .
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.B B
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and
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.B I
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mean
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.B FB
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and
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.BR FI .
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.TP
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.B T
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Begin vertically-spanned item at top row of range; default is
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vertical centering (with
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.LR ^ ).
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.TP
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.BI P n
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Use point size
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.IR n .
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.TP
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.BI V n
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Use
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.IR n -point
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vertical spacing in text block; signed
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.I n
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means relative change.
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.TP
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.BI W( n )
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Column width as a
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.I troff
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width specification.
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Parens are optional if
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.I n
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is a simple integer.
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.TP
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.B E
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Equalize the widths of all columns marked
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.BR E .
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.PD
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.RE
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.PP
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Each line of
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.I data
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becomes one row of the table; tabs separate items.
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Lines beginning with
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.L .
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are
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.I troff
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requests.
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Certain special data items are recognized:
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.RS
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.TP 0
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.B _
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Draw a horizontal rule in this column.
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.PD0
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.TP
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.B =
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Draw a double horizontal rule in this column.
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A data line consisting of a single
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.L _
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or
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.L =
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draws the rule across the whole table.
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.TP
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.B \e_
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Draw a rule only as wide as the contents of the column.
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.TP
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.BI \eR x
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Repeat character
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.I x
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across the column.
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.TP
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.B \e^
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Span the previous item in this column down into this row.
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.TP
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.B T{
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The item is a text block to be separately formatted
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by
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.I troff
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and placed in the table.
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The block continues to the next line beginning with
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.BR T} .
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The remainder of the data line follows at that point.
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.PD
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.RE
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.PP
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When it is used in a pipeline with
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.IR eqn ,
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the
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.I tbl
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command should be first, to minimize the volume
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of data passed through
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pipes.
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.SH EXAMPLES
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.ds tb \fR<tab>\fP
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Let \*(tb
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represent a tab (which should
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be typed as a genuine tab).
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.if t .2C
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.EX
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\&.TS
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c s s
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c c s
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c c c
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l n n.
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Household Population
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Town\*(tbHouseholds
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\*(tbNumber\*(tbSize
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Bedminster\*(tb789\*(tb3.26
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Bernards Twp.\*(tb3087\*(tb3.74
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Bernardsville\*(tb2018\*(tb3.30
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\&.TE
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.if t \{\0
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\0
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\0\}
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.if n .PP
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.TS
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c s s
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c c s
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c c c
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l n n.
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Household Population
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Town Households
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Number Size
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Bedminster 789 3.26
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Bernards Twp. 3087 3.74
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Bernardsville 2018 3.30
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.TE
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.EE
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.if t \{.sp3
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.1C\}
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.SH SOURCE
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.B /sys/src/cmd/tbl
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.SH SEE ALSO
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.IR troff (1),
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.IR eqn (1),
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.IR doctype (1)
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.br
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M. E. Lesk and L. L. Cherry,
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``TBL\(ema Program to Format Tables'',
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.I
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Unix Research System Programmer's Manual,
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Tenth Edition, Volume 2.
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