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Messages of the -Wbase level now print STYLE:.  Since this
causes horrible churn anyway, profit of the opportunity to stop
excessive testing, such that this is hopefully the last instance
of such churn.  Consistently use OpenBSD RCS tags, blank .Os,
blank fourth .TH argument, and Mdocdate like everywhere else.
Use -Ios=OpenBSD for platform-independent predictable output.

.\" $OpenBSD: column.in,v 1.10 2017/07/04 14:53:24 schwarze Exp $
.Dd $Mdocdate: July 4 2017 $
.Dt BL-COLUMN 1
.Os
.Sh NAME
.Nm Bl-column
.Nd lists with multiple columns
.Sh DESCRIPTION
.Bl -column "a"
.It a
.El
.Bl -column "a" "b"
.It a Ta b
.El
.\" avoid "c" which means "cm"
.Bl -column "a" "b" "cc"
.It a Ta b Ta cc
.It a	b	cc
.It "a"	b	cc
.It "a	b"	cc
.It "a	b	cc"
.El
.Bl -column "a" "b" "cc" "d"
.It a Ta b Ta cc Ta d
.El
.Bl -column "a" "b" "cc" "d" "e"
.It a Ta b Ta cc Ta d Ta e
.El
.\" Probing up to the utter limits of groff.
.\" With more than 5 columns or more than 78 characters per line,
.\" groff .Bl -column turns completely mad.
.\" mandoc can do more, but it's no use testing that.
.Bd -literal
5 + 35 + 4 + 34 = 78:
.Ed
.Bl -column "x35xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"  "x34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
.It          x35xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Ta x34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
.It a Ta b
.El
.Bd -literal
5 + (22+4)*2 + 21 = 78:
.Ed
.Bl -column "x22xxxxxxxxxxxxxxxxxxx"  "x22xxxxxxxxxxxxxxxxxxx"  "x21xxxxxxxxxxxxxxxxxx"
.It          x22xxxxxxxxxxxxxxxxxxx Ta x22xxxxxxxxxxxxxxxxxxx Ta x21xxxxxxxxxxxxxxxxxx
.It a Ta b Ta c
.El
.Bd -literal
5 + 16 + (4+15)*3 = 78:
.Ed
.Bl -column "x16xxxxxxxxxxxxx"  "x15xxxxxxxxxxxx"  "x15xxxxxxxxxxxx"  "x15xxxxxxxxxxxx"
.It          x16xxxxxxxxxxxxx Ta x15xxxxxxxxxxxx Ta x15xxxxxxxxxxxx Ta x15xxxxxxxxxxxx
.It a Ta b Ta c Ta d
.El
.Bd -literal
5 + 13 + (3+12)*4 = 78:
.Ed
.Bl -column "x13xxxxxxxxxx"  "x12xxxxxxxxx"  "x12xxxxxxxxx"  "x12xxxxxxxxx"  "x12xxxxxxxxx"
.It          x13xxxxxxxxxx Ta x12xxxxxxxxx Ta x12xxxxxxxxx Ta x12xxxxxxxxx Ta x12xxxxxxxxx
.It a Ta b Ta c Ta d Ta e
.El
.\" Trailing white space in phrases.
.Bl -column "aaaa" "bbbb"
.It "a" Ta "b"
.It "a " Ta "b"
.It "a  " Ta "b"
.It a	b
.It a 	b
.It a  	b
.El
.\" Wrong number of columns.
.Bl -column "a" "b"
.It
.It "a"
.It "a" Ta "b"
.It
.It "a" Ta "b" Ta "c"
.It "a" Ta "b" Ta "c" Ta "d"
.It "a" Ta "b" Ta "c" Ta "d" Ta "e"
.It
.El
.\" Mixed tab and Ta
.Bl -column a b c d
.It a	b	c	d
.It a	b	c Ta d
.It a	b Ta c	d
.It a	b Ta c Ta d
.It a Ta b	c	d
.It a Ta b	c Ta d
.It a Ta b Ta c	d
.It a Ta b Ta c Ta d
.El
.\" Macros before and after tabs
.Bl -column "aa" "OpenBSD OpenBSD OpenBSD"
.It aa Ta Ox Ox Ox Ta tab-tab
.It aa Ta Ox Ox Ox	tab-ta
.It aa	Ox Ox Ox Ta ta-tab
.It aa	Ox Ox Ox	ta-ta
.It aa	Ox Ox Ox 	ta-bl/ta
.It aa	 Ox Ox Ox	ta/bl-ta
.It aa	  Ox Ox Ox 	ta/bl-bl/ta
.It aa Ta bb Ta
ta at eol
.It aa	bb	
tab at eol
.El
.\" Interrupted column list
.Bl -column "aa" -width 6n -compact "bb" "cc"
.It aa Ta bb Ta cc Ta dd
.El