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diff --git a/doc/html/man/tabs.1.html b/doc/html/man/tabs.1.html index e56ee4f..8a785fc 100644 --- a/doc/html/man/tabs.1.html +++ b/doc/html/man/tabs.1.html @@ -1,7 +1,7 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"> <!-- **************************************************************************** - * Copyright (c) 2008-2011,2013 Free Software Foundation, Inc. * + * Copyright 2018-2019,2020 Thomas E. Dickey * + * Copyright 2008-2016,2017 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 * @@ -27,97 +27,111 @@ * sale, use or other dealings in this Software without prior written * * authorization. * **************************************************************************** - * @Id: tabs.1,v 1.11 2013/06/22 18:11:57 tom Exp @ + * @Id: tabs.1,v 1.27 2020/02/02 23:34:34 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 https://invisible-island.net/scripts/readme.html#others_scripts"> <TITLE>tabs 1</TITLE> -<link rev=made href="mailto:bug-ncurses@gnu.org"> +<link rel="author" href="mailto:bug-ncurses@gnu.org"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </HEAD> <BODY> -<H1>tabs 1</H1> -<HR> +<H1 class="no-header">tabs 1</H1> <PRE> -<!-- Manpage converted by man2html 3.0.1 --> -<STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> +<STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> General Commands Manual <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> -</PRE> -<H2>NAME</H2><PRE> +</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE> <STRONG>tabs</STRONG> - set tabs on a terminal -</PRE> -<H2>SYNOPSIS</H2><PRE> +</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE> <STRONG>tabs</STRONG> [<EM>options</EM>]] <EM>[tabstop-list]</EM> -</PRE> -<H2>DESCRIPTION</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., +</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE> + The <STRONG>tabs</STRONG> program clears and sets tab-stops on the terminal. 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 + 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 chang- + ing the tabstops), and later <STRONG>cat</STRONG> the file to the screen, setting tab- + stops at that point. -</PRE> -<H2>OPTIONS</H2><PRE> - <STRONG>General</STRONG> <STRONG>Options</STRONG> + These are hardware tabs, which cannot be queried rapidly by applica- + tions running in the terminal, if at all. Curses and other full-screen + applications may use hardware tabs in optimizing their output to the + terminal. If the hardware tabstops differ from the information in the + terminal database, the result is unpredictable. Before running curses + programs, you should either reset tab-stops to the standard interval + + tabs -8 + + or use the <STRONG>reset</STRONG> program, since the normal initialization sequences do + not ensure that tab-stops are reset. + + +</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>$TERM</STRONG> environment - variable. If that is not set, it will use the - <EM>ansi+tabs</EM> entry. - - <STRONG>-d</STRONG> The debugging option shows a ruler line, followed by - two data lines. The first data line shows the - expected tab-stops marked with asterisks. The second - data line shows the actual tab-stops, marked with - asterisks. - - <STRONG>-n</STRONG> This option tells <STRONG>tabs</STRONG> to check the options and run - any debugging option, but not to modify the terminal - settings. - - <STRONG>-V</STRONG> reports the version of ncurses which was used in this - program, and exits. - - The <STRONG>tabs</STRONG> program processes a single list of tab stops. - The last option to be processed which defines a list is - the one that determines the list to be processed. - - <STRONG>Implicit</STRONG> <STRONG>Lists</STRONG> - Use a single number as an option, e.g., "<STRONG>-5</STRONG>" to set tabs - at the given interval (in this case 1, 6, 11, 16, 21, - etc.). Tabs are repeated up to the right margin of the - screen. + Tell <STRONG>tabs</STRONG> which terminal type to use. If this option is not + given, <STRONG>tabs</STRONG> will use the <STRONG>$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. - <STRONG>Explicit</STRONG> <STRONG>Lists</STRONG> - 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., +</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 exam- + ple, + + 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 + tabs 1,+5,+5,+5,+5 which is equivalent to the 1,6,11,16,21 example. - <STRONG>Predefined</STRONG> <STRONG>Tab-Stops</STRONG> + +</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 @@ -139,34 +153,81 @@ <STRONG>-u</STRONG> UNIVAC 1100 Assembler -</PRE> -<H2>PORTABILITY</H2><PRE> - X/Open describes a <STRONG>+m</STRONG> option, to set a terminal's left- - margin. Very few of the entries in the terminal database - provide this capability. +</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE> + <EM>IEEE</EM> <EM>Std</EM> <EM>1003.1/The</EM> <EM>Open</EM> <EM>Group</EM> <EM>Base</EM> <EM>Specifications</EM> <EM>Issue</EM> <EM>7</EM> + (POSIX.1-2008) describes a <STRONG>tabs</STRONG> utility. However - The <STRONG>-d</STRONG> (debug) and <STRONG>-n</STRONG> (no-op) options are extensions not - provided by other implementations. + <STRONG>o</STRONG> This standard describes a <STRONG>+m</STRONG> option, to set a terminal's left-mar- + gin. Very few of the entries in the terminal database provide the + <STRONG>smgl</STRONG> (<STRONG>set_left_margin</STRONG>) or <STRONG>smglp</STRONG> (<STRONG>set_left_margin_parm</STRONG>) capability + needed to support the feature. - 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. + <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. -</PRE> -<H2>SEE ALSO</H2><PRE> + A <STRONG>tabs</STRONG> utility appeared in PWB/Unix 1.0 (1977). There was a reduced + version of the <STRONG>tabs</STRONG> utility in Unix 7th edition and in 3BSD (1979). + The latter supported a single "-n" option (to cause the first tab stop + to be set on the left margin). That option is not documented by POSIX. + + The PWB/Unix <STRONG>tabs</STRONG> utility, which was included in System III (1980), + used built-in tables rather than the terminal database, to support a + half-dozen terminal types. It also had built-in logic to support the + left-margin, as well as a feature for copying the tab settings from a + file. + + Later versions of Unix, e.g., SVr4, added support for the terminal + database, but kept the tables, as a fallback. In an earlier develop- + ment effort, the tab-stop initialization provided by <STRONG>tset</STRONG> (1982) and + incorporated into <STRONG>tput</STRONG> uses the terminal database, + + POSIX documents no limits on the number of tab stops. Documentation + for other implementations states that there is a limit on the number of + tab stops (e.g., 20 in PWB/Unix's <STRONG>tabs</STRONG> utility). While some terminals + 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. + + The <EM>Rationale</EM> section of the POSIX documentation goes into some detail + about the ways the committee considered redesigning the <STRONG>tabs</STRONG> and <STRONG>tput</STRONG> + utilities, without proposing an improved solution. It comments that + + no known historical version of tabs supports the capability of + setting arbitrary tab stops. + + However, the <EM>Explicit</EM> <EM>Lists</EM> described in this manual page were imple- + mented in PWB/Unix. Those provide the capability of setting abitrary + tab stops. + + +</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 5.9 (patch 20141220). + This describes <STRONG>ncurses</STRONG> version 6.2 (patch 20200212). - <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> + <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> </PRE> -<HR> -Man(1) output converted with <a href="http://invisible-island.net/scripts/readme.html#others_scripts">man2html</a> +<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> |