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29 * @Id: tabs.1,v 1.11 2013/06/22 18:11:57 tom Exp @
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41<H1 class="no-header">tabs 1</H1>
42<PRE>
43<STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>
44
45
46
47
48</PRE>
49<H2><a name="h2-NAME">NAME</a></H2><PRE>
50 <STRONG>tabs</STRONG> - set tabs on a terminal
51
52
53</PRE>
54<H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
55 <STRONG>tabs</STRONG> [<EM>options</EM>]] <EM>[tabstop-list]</EM>
56
57
58</PRE>
59<H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
60 The <STRONG>tabs</STRONG> program clears and sets tab-stops on the termi-
61 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>
62 capabilities. If either is absent, <STRONG>tabs</STRONG> is unable to
63 clear/set tab-stops. The terminal should be configured to
64 use hard tabs, e.g.,
65
66 stty tab0
67
68
69</PRE>
70<H2><a name="h2-OPTIONS">OPTIONS</a></H2><PRE>
71
72</PRE>
73<H3><a name="h3-General-Options">General Options</a></H3><PRE>
74 <STRONG>-T</STRONG><EM>name</EM>
75 Tell <STRONG>tabs</STRONG> which terminal type to use. If this option
76 is not given, <STRONG>tabs</STRONG> will use the <STRONG>$TERM</STRONG> environment
77 variable. If that is not set, it will use the
78 <EM>ansi+tabs</EM> entry.
79
80 <STRONG>-d</STRONG> The debugging option shows a ruler line, followed by
81 two data lines. The first data line shows the
82 expected tab-stops marked with asterisks. The second
83 data line shows the actual tab-stops, marked with
84 asterisks.
85
86 <STRONG>-n</STRONG> This option tells <STRONG>tabs</STRONG> to check the options and run
87 any debugging option, but not to modify the terminal
88 settings.
89
90 <STRONG>-V</STRONG> reports the version of ncurses which was used in this
91 program, and exits.
92
93 The <STRONG>tabs</STRONG> program processes a single list of tab stops.
94 The last option to be processed which defines a list is
95 the one that determines the list to be processed.
96
97
98</PRE>
99<H3><a name="h3-Implicit-Lists">Implicit Lists</a></H3><PRE>
100 Use a single number as an option, e.g., "<STRONG>-5</STRONG>" to set tabs
101 at the given interval (in this case 1, 6, 11, 16, 21,
102 etc.). Tabs are repeated up to the right margin of the
103 screen.
104
105 Use "<STRONG>-0</STRONG>" to clear all tabs.
106
107 Use "<STRONG>-8</STRONG>" to set tabs to the standard interval.
108
109
110</PRE>
111<H3><a name="h3-Explicit-Lists">Explicit Lists</a></H3><PRE>
112 An explicit list can be defined after the options (this
113 does not use a "-"). The values in the list must be in
114 increasing numeric order, and greater than zero. They are
115 separated by a comma or a blank, for example,
116
117 tabs 1,6,11,16,21
118 tabs 1 6 11 16 21
119 Use a '+' to treat a number as an increment relative to
120 the previous value, e.g.,
121
122 tabs 1,+5,+5,+5,+5
123
124 which is equivalent to the 1,6,11,16,21 example.
125
126
127</PRE>
128<H3><a name="h3-Predefined-Tab-Stops">Predefined Tab-Stops</a></H3><PRE>
129 X/Open defines several predefined lists of tab stops.
130
131 <STRONG>-a</STRONG> Assembler, IBM S/370, first format
132
133 <STRONG>-a2</STRONG> Assembler, IBM S/370, second format
134
135 <STRONG>-c</STRONG> COBOL, normal format
136
137 <STRONG>-c2</STRONG> COBOL compact format
138
139 <STRONG>-c3</STRONG> COBOL compact format extended
140
141 <STRONG>-f</STRONG> FORTRAN
142
143 <STRONG>-p</STRONG> PL/I
144
145 <STRONG>-s</STRONG> SNOBOL
146
147 <STRONG>-u</STRONG> UNIVAC 1100 Assembler
148
149
150</PRE>
151<H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
152 X/Open describes a <STRONG>+m</STRONG> option, to set a terminal's left-
153 margin. Very few of the entries in the terminal database
154 provide this capability.
155
156 The <STRONG>-d</STRONG> (debug) and <STRONG>-n</STRONG> (no-op) options are extensions not
157 provided by other implementations.
158
159 Documentation for other implementations states that there
160 is a limit on the number of tab stops. While some termi-
161 nals may not accept an arbitrary number of tab stops, this
162 implementation will attempt to set tab stops up to the
163 right margin of the screen, if the given list happens to
164 be that long.
165
166
167</PRE>
168<H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
169 <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>.
170
171 This describes <STRONG>ncurses</STRONG> version 6.0 (patch 20150808).
172
173
174
175 <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>
176</PRE>
177<div class="nav">
178<ul>
179<li><a href="#h2-NAME">NAME</a></li>
180<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
181<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
182<li><a href="#h2-OPTIONS">OPTIONS</a>
183<ul>
184<li><a href="#h3-General-Options">General Options</a></li>
185<li><a href="#h3-Implicit-Lists">Implicit Lists</a></li>
186<li><a href="#h3-Explicit-Lists">Explicit Lists</a></li>
187<li><a href="#h3-Predefined-Tab-Stops">Predefined Tab-Stops</a></li>
188</ul>
189</li>
190<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
191<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
192</ul>
193</div>
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