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diff --git a/share/doc/usd/22.trofftut/tt05 b/share/doc/usd/22.trofftut/tt05 new file mode 100644 index 000000000000..b7bff82a3ee1 --- /dev/null +++ b/share/doc/usd/22.trofftut/tt05 @@ -0,0 +1,130 @@ +.\" This module is believed to contain source code proprietary to AT&T. +.\" Use and redistribution is subject to the Berkeley Software License +.\" Agreement and your Software Agreement with AT&T (Western Electric). +.\" +.\" @(#)tt05 8.1 (Berkeley) 6/8/93 +.\" Copyright (C) Caldera International Inc. 2001-2002. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions are +.\" met: +.\" +.\" Redistributions of source code and documentation must retain the above +.\" copyright notice, this list of conditions and the following +.\" disclaimer. +.\" +.\" Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" +.\" This product includes software developed or owned by Caldera +.\" International, Inc. Neither the name of Caldera International, Inc. +.\" nor the names of other contributors may be used to endorse or promote +.\" products derived from this software without specific prior written +.\" permission. +.\" +.\" USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA +.\" INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR +.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +.\" DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE +.\" FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR +.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR +.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE +.\" OR OTHERWISE) RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN +.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.NH +Tabs +.PP +Tabs +(the \s8ASCII\s0 `horizontal tab' character) +can be used to produce output in columns, +or to set the horizontal position of output. +Typically +tabs are used only in unfilled text. +Tab stops are set by default every half inch from the +current indent, +but +can be changed by the +.BD .ta +command. +To set stops every inch, for example, +.P1 +^ta 1i 2i 3i 4i 5i 6i +.P2 +.PP +Unfortunately the stops are left-justified only +(as on a typewriter), +so lining up columns of right-justified numbers can be painful. +If you have many numbers, +or if you need more complicated table layout, +.ul +don't +use +.UL troff +directly; +use the +.UL tbl +program described in [3]. +.PP +For a handful of numeric columns, you can do it this way: +Precede every number by enough blanks to make it line up +when typed. +.P1 +^nf +^ta 1i 2i 3i +\0\01\0\fItab\fR\0\0\02\0\fItab\fR\0\0\03 +\040\0\fItab\fR\0\050\0\fItab\fR\0\060 +700\0\fItab\fR\0800\0\fItab\fR\0900 +^fi +.P2 +Then change each leading blank into the string +.BD \e0 . +This is a character that does not print, but that has +the same width as a digit. +When printed, this will produce +.P1 +.ta 1i 2i 3i +\0\01 \0\02 \0\03 +\040 \050 \060 +700 800 900 +.P2 +.PP +It is also possible to fill up tabbed-over space with +some character other than blanks by setting the `tab replacement character' +with the +.BD .tc +command: +.P1 +^ta 1.5i 2.5i +^tc \e(ru (\e(ru is "\(ru") +Name \fItab\fR Age \fItab\fR +.P2 +produces +.P1 3 +.ta 1.5i 2.5i +.tc \(ru +Name Age +.tc +.P2 +To reset the tab replacement character to a blank, use +.BD .tc +with no argument. +(Lines can also be drawn with the +.BD \el +command, described in Section 6.) +.PP +.UL troff +also provides a very general mechanism called `fields' +for setting up complicated columns. +(This is used by +.UL tbl ). +We will not go into it in this paper. |