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29 * @Id: tabs.1,v 1.11 2013/06/22 18:11:57 tom Exp @
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44 <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>
50 <H2><a name="h2-NAME">NAME</a></H2><PRE>
51 <STRONG>tabs</STRONG> - set tabs on a terminal
55 <H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
56 <STRONG>tabs</STRONG> [<EM>options</EM>]] <EM>[tabstop-list]</EM>
60 <H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
61 The <STRONG>tabs</STRONG> program clears and sets tab-stops on the termi-
62 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>
63 capabilities. If either is absent, <STRONG>tabs</STRONG> is unable to
64 clear/set tab-stops. The terminal should be configured to
71 <H2><a name="h2-OPTIONS">OPTIONS</a></H2><PRE>
74 <H3><a name="h3-General-Options">General Options</a></H3><PRE>
75 <STRONG>-T</STRONG><EM>name</EM>
76 Tell <STRONG>tabs</STRONG> which terminal type to use. If this option
77 is not given, <STRONG>tabs</STRONG> will use the <STRONG>$TERM</STRONG> environment
78 variable. If that is not set, it will use the
79 <EM>ansi+tabs</EM> entry.
81 <STRONG>-d</STRONG> The debugging option shows a ruler line, followed by
82 two data lines. The first data line shows the
83 expected tab-stops marked with asterisks. The second
84 data line shows the actual tab-stops, marked with
87 <STRONG>-n</STRONG> This option tells <STRONG>tabs</STRONG> to check the options and run
88 any debugging option, but not to modify the terminal
91 <STRONG>-V</STRONG> reports the version of ncurses which was used in this
94 The <STRONG>tabs</STRONG> program processes a single list of tab stops.
95 The last option to be processed which defines a list is
96 the one that determines the list to be processed.
100 <H3><a name="h3-Implicit-Lists">Implicit Lists</a></H3><PRE>
101 Use a single number as an option, e.g., "<STRONG>-5</STRONG>" to set tabs
102 at the given interval (in this case 1, 6, 11, 16, 21,
103 etc.). Tabs are repeated up to the right margin of the
106 Use "<STRONG>-0</STRONG>" to clear all tabs.
108 Use "<STRONG>-8</STRONG>" to set tabs to the standard interval.
112 <H3><a name="h3-Explicit-Lists">Explicit Lists</a></H3><PRE>
113 An explicit list can be defined after the options (this
114 does not use a "-"). The values in the list must be in
115 increasing numeric order, and greater than zero. They are
116 separated by a comma or a blank, for example,
120 Use a '+' to treat a number as an increment relative to
121 the previous value, e.g.,
125 which is equivalent to the 1,6,11,16,21 example.
129 <H3><a name="h3-Predefined-Tab-Stops">Predefined Tab-Stops</a></H3><PRE>
130 X/Open defines several predefined lists of tab stops.
132 <STRONG>-a</STRONG> Assembler, IBM S/370, first format
134 <STRONG>-a2</STRONG> Assembler, IBM S/370, second format
136 <STRONG>-c</STRONG> COBOL, normal format
138 <STRONG>-c2</STRONG> COBOL compact format
140 <STRONG>-c3</STRONG> COBOL compact format extended
142 <STRONG>-f</STRONG> FORTRAN
144 <STRONG>-p</STRONG> PL/I
146 <STRONG>-s</STRONG> SNOBOL
148 <STRONG>-u</STRONG> UNIVAC 1100 Assembler
152 <H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
153 X/Open describes a <STRONG>+m</STRONG> option, to set a terminal's left-
154 margin. Very few of the entries in the terminal database
155 provide this capability.
157 The <STRONG>-d</STRONG> (debug) and <STRONG>-n</STRONG> (no-op) options are extensions not
158 provided by other implementations.
160 Documentation for other implementations states that there
161 is a limit on the number of tab stops. While some termi-
162 nals may not accept an arbitrary number of tab stops, this
163 implementation will attempt to set tab stops up to the
164 right margin of the screen, if the given list happens to
169 <H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
170 <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>.
172 This describes <STRONG>ncurses</STRONG> version 5.9 (patch 20150215).
176 <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>
180 <li><a href="#h2-NAME">NAME</a></li>
181 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
182 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
183 <li><a href="#h2-OPTIONS">OPTIONS</a>
185 <li><a href="#h3-General-Options">General Options</a></li>
186 <li><a href="#h3-Implicit-Lists">Implicit Lists</a></li>
187 <li><a href="#h3-Explicit-Lists">Explicit Lists</a></li>
188 <li><a href="#h3-Predefined-Tab-Stops">Predefined Tab-Stops</a></li>
191 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
192 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>