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29 .\" $Id: tabs.1,v 1.8 2010/12/04 18:40:45 tom Exp $
33 \fBtabs\fR \- set tabs on a terminal
35 \fBtabs\fR [\fB\-v\fR[\fIn\fR]] [\fB\-ahuUV\fR] \fIfile...\fR
39 The \fBtabs\fP program clears and sets tab-stops on the terminal.
40 This uses the terminfo \fIclear_all_tabs\fP and \fIset_tab\fP capabilities.
41 If either is absent, \fBtabs\fP is unable to clear/set tab-stops.
42 The terminal should be configured to use hard tabs, e.g.,
51 Tell \fBtabs\fP which terminal type to use.
52 If this option is not given, \fBtabs\fP will use the \fB$TERM\fP
54 If that is not set, it will use the \fIansi+tabs\fP entry.
57 The debugging option shows a ruler line, followed by two data lines.
58 The first data line shows the expected tab-stops marked with asterisks.
59 The second data line shows the actual tab-stops, marked with asterisks.
62 This option tells \fBtabs\fP to check the options and run any debugging
63 option, but not to modify the terminal settings.
65 The \fBtabs\fP program processes a single list of tab stops.
66 The last option to be processed which defines a list is the one that
67 determines the list to be processed.
69 Use a single number as an option, e.g., "\fB\-5\fP" to set tabs at the given
70 interval (in this case 1, 6, 11, 16, 21, etc.). Tabs are repeated up to
71 the right margin of the screen.
73 Use "\fB\-0\fP" to clear all tabs.
75 Use "\fB\-8\fP" to set tabs to the standard interval.
77 An explicit list can be defined after the options (this does not use a "\-").
78 The values in the list must be in increasing numeric order, and greater than
79 zero. They are separated by a comma or a blank, for example,
86 Use a '+' to treat a number as an increment relative to the previous value,
92 which is equivalent to the 1,6,11,16,21 example.
93 .SS Predefined Tab-Stops
94 X/Open defines several predefined lists of tab stops.
97 Assembler, IBM S/370, first format
100 Assembler, IBM S/370, second format
109 COBOL compact format extended
121 UNIVAC 1100 Assembler
124 X/Open describes a \fB+m\fP option, to set a terminal's left-margin.
125 Very few of the entries in the terminal database provide this capability.
127 The \fB\-d\fP (debug) and \fB\-n\fP (no-op) options are extensions not provided
128 by other implementations.
130 Documentation for other implementations states that there is a limit on the
131 number of tab stops. While some terminals may not accept an arbitrary number
132 of tab stops, this implementation will attempt to set tab stops up to the
133 right margin of the screen, if the given list happens to be that long.
140 This describes \fBncurses\fR
141 version @NCURSES_MAJOR@.@NCURSES_MINOR@ (patch @NCURSES_PATCH@).