ncursesw-morphos/doc/html/man/tabs.1.html
Thomas E. Dickey ce4803687b ncurses 6.0 - patch 20170218
+ fix several formatting issues with manual pages.
+ correct read of terminfo entry in which all strings are absent or
  explicitly cancelled.  Before this fix, the result was that all were
  treated as only absent.
+ modify infocmp to suppress mixture of absent/cancelled capabilities
  that would only show as "NULL, NULL", unless the -q option is used,
  e.g., to show "-, @" or "@, -".
2017-02-19 02:52:26 +00:00

198 lines
8.7 KiB
HTML

<!--
****************************************************************************
* Copyright (c) 2008-2013,2016 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************
* @Id: tabs.1,v 1.15 2016/12/31 16:07:39 tom Exp @
-->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<HTML>
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
<TITLE>tabs 1</TITLE>
<link rev=made href="mailto:bug-ncurses@gnu.org">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</HEAD>
<BODY>
<H1 class="no-header">tabs 1</H1>
<PRE>
<STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>tabs</STRONG> - set tabs on a terminal
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>tabs</STRONG> [<EM>options</EM>]] <EM>[tabstop-list]</EM>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
The <STRONG>tabs</STRONG> program clears and sets tab-stops on the termi-
nal. This uses the terminfo <EM>clear</EM><STRONG>_</STRONG><EM>all</EM><STRONG>_</STRONG><EM>tabs</EM> and <EM>set</EM><STRONG>_</STRONG><EM>tab</EM>
capabilities. If either is absent, <STRONG>tabs</STRONG> is unable to
clear/set tab-stops. The terminal should be configured to
use hard tabs, e.g.,
stty tab0
Like <STRONG><A HREF="clear.1.html">clear(1)</A></STRONG>, <STRONG>tabs</STRONG> writes to the standard output. You
can redirect the standard output to a file (which prevents
<STRONG>tabs</STRONG> from actually changing the tabstops), and later <STRONG>cat</STRONG>
the file to the screen, setting tabstops at that point.
</PRE><H2><a name="h2-OPTIONS">OPTIONS</a></H2><PRE>
</PRE><H3><a name="h3-General-Options">General Options</a></H3><PRE>
<STRONG>-T</STRONG><EM>name</EM>
Tell <STRONG>tabs</STRONG> which terminal type to use. If this option
is not given, <STRONG>tabs</STRONG> will use the <STRONG>$TERM</STRONG> environment
variable. If that is not set, it will use the
<EM>ansi+tabs</EM> entry.
<STRONG>-d</STRONG> The debugging option shows a ruler line, followed by
two data lines. The first data line shows the
expected tab-stops marked with asterisks. The second
data line shows the actual tab-stops, marked with
asterisks.
<STRONG>-n</STRONG> This option tells <STRONG>tabs</STRONG> to check the options and run
any debugging option, but not to modify the terminal
settings.
<STRONG>-V</STRONG> reports the version of ncurses which was used in this
program, and exits.
The <STRONG>tabs</STRONG> program processes a single list of tab stops.
The last option to be processed which defines a list is
the one that determines the list to be processed.
</PRE><H3><a name="h3-Implicit-Lists">Implicit Lists</a></H3><PRE>
Use a single number as an option, e.g., "<STRONG>-5</STRONG>" to set tabs
at the given interval (in this case 1, 6, 11, 16, 21,
etc.). Tabs are repeated up to the right margin of the
screen.
Use "<STRONG>-0</STRONG>" to clear all tabs.
Use "<STRONG>-8</STRONG>" to set tabs to the standard interval.
</PRE><H3><a name="h3-Explicit-Lists">Explicit Lists</a></H3><PRE>
An explicit list can be defined after the options (this
does not use a "-"). The values in the list must be in
increasing numeric order, and greater than zero. They are
separated by a comma or a blank, for example,
tabs 1,6,11,16,21
tabs 1 6 11 16 21
Use a "+" to treat a number as an increment relative to
the previous value, e.g.,
tabs 1,+5,+5,+5,+5
which is equivalent to the 1,6,11,16,21 example.
</PRE><H3><a name="h3-Predefined-Tab-Stops">Predefined Tab-Stops</a></H3><PRE>
X/Open defines several predefined lists of tab stops.
<STRONG>-a</STRONG> Assembler, IBM S/370, first format
<STRONG>-a2</STRONG> Assembler, IBM S/370, second format
<STRONG>-c</STRONG> COBOL, normal format
<STRONG>-c2</STRONG> COBOL compact format
<STRONG>-c3</STRONG> COBOL compact format extended
<STRONG>-f</STRONG> FORTRAN
<STRONG>-p</STRONG> PL/I
<STRONG>-s</STRONG> SNOBOL
<STRONG>-u</STRONG> UNIVAC 1100 Assembler
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
IEEE Std 1003.1/The Open Group Base Specifications Issue
7 (POSIX.1-2008) describes a <STRONG>tabs</STRONG> utility. However
<STRONG>o</STRONG> This standard describes a <STRONG>+m</STRONG> option, to set a termi-
nal's left-margin. Very few of the entries in the
terminal database provide this capability.
<STRONG>o</STRONG> There is no counterpart in X/Open Curses Issue 7 for
this utility, unlike <STRONG>tput(1)</STRONG>.
The <STRONG>-d</STRONG> (debug) and <STRONG>-n</STRONG> (no-op) options are extensions not
provided by other implementations.
Documentation for other implementations states that there
is a limit on the number of tab stops. While some termi-
nals may not accept an arbitrary number of tab stops, this
implementation will attempt to set tab stops up to the
right margin of the screen, if the given list happens to
be that long.
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>, <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>, <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
This describes <STRONG>ncurses</STRONG> version 6.0 (patch 20170218).
<STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>
</PRE>
<div class="nav">
<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-OPTIONS">OPTIONS</a>
<ul>
<li><a href="#h3-General-Options">General Options</a></li>
<li><a href="#h3-Implicit-Lists">Implicit Lists</a></li>
<li><a href="#h3-Explicit-Lists">Explicit Lists</a></li>
<li><a href="#h3-Predefined-Tab-Stops">Predefined Tab-Stops</a></li>
</ul>
</li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
</ul>
</div>
</BODY>
</HTML>