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diff --git a/doc/html/man/tabs.1.html b/doc/html/man/tabs.1.html index 5a548fab176b..dd2f6f288b9a 100644 --- a/doc/html/man/tabs.1.html +++ b/doc/html/man/tabs.1.html @@ -1,6 +1,6 @@ <!-- **************************************************************************** - * Copyright 2018-2023,2024 Thomas E. Dickey * + * Copyright 2018-2024,2025 Thomas E. Dickey * * Copyright 2008-2016,2017 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * @@ -27,25 +27,23 @@ * sale, use or other dealings in this Software without prior written * * authorization. * **************************************************************************** - * @Id: tabs.1,v 1.59 2024/04/20 19:08:15 tom Exp @ + * @Id: tabs.1,v 1.74 2025/08/16 19:11:47 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 2024-04-20 ncurses 6.5 User commands</TITLE> +<TITLE>tabs 1 2025-08-16 ncurses 6.6 User commands</TITLE> <link rel="author" href="mailto:bug-ncurses@gnu.org"> </HEAD> <BODY> -<H1 class="no-header">tabs 1 2024-04-20 ncurses 6.5 User commands</H1> +<H1 class="no-header">tabs 1 2025-08-16 ncurses 6.6 User commands</H1> <PRE> <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> User commands <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> - - </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE> <STRONG>tabs</STRONG> - set terminal tab stops @@ -132,8 +130,8 @@ 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> - POSIX defines several predefined lists of tab stops. +</PRE><H3><a name="h3-Standard-Tab-Stops">Standard Tab Stops</a></H3><PRE> + POSIX defines several lists of tab stops. <STRONG>-a</STRONG> Assembler, IBM S/370, first format 1,10,16,36,72 @@ -180,7 +178,7 @@ on each line. The terminal's left margin is not modified. If the <EM>margin</EM> parameter is omitted, the default is 10. Use <STRONG>+m0</STRONG> to - reset the left margin, that is, to make it the left edge of the + reset the left margin, that is, to make it the left edge of the terminal's display. Before setting a left margin, <STRONG>tabs</STRONG> resets the margin to reduce problems that might arise from moving the cursor to the left of the current left margin. @@ -195,70 +193,67 @@ </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, + IEEE Std 1003.1/The Open Group Base Specifications Issue 7 + (POSIX.1-2008) describes a <EM>tabs</EM> utility. However, <STRONG>o</STRONG> this standard describes a <STRONG>+m</STRONG> option to set a terminal's left margin. Very few of the entries in the terminal database provide the <STRONG>set_left_margin</STRONG> (<STRONG>smgl</STRONG>) or <STRONG>set_left_margin_parm</STRONG> (<STRONG>smglp</STRONG>) capabilities needed to support the feature. - <STRONG>o</STRONG> There is no counterpart in X/Open Curses Issue 7 for this utility, - unlike <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>. + <STRONG>o</STRONG> Unlike <EM>tput</EM>, <EM>tabs</EM> has no specification in X/Open Curses Issue 7. - The <STRONG>-d</STRONG> (debug) and <STRONG>-n</STRONG> (no-op) options are <EM>ncurses</EM> extensions not + The <STRONG>-d</STRONG> (debug) and <STRONG>-n</STRONG> (no-op) options are <EM>ncurses</EM> extensions not provided by other implementations. </PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE> - A <STRONG>tabs</STRONG> utility appeared in PWB/Unix 1.0 (1977). A reduced version - shipped in Seventh Edition Unix (early 1979) and in 3BSD (later the - same year); it supported a "-n" option to set the first tab stop at the - left margin. That option is not specified by POSIX. - - The PWB/Unix <STRONG>tabs</STRONG> utility returned in System III (1980), and used - built-in tables to support a half-dozen hardcopy terminal (printer) - types. It also had logic to support setting the left margin, as well + A <EM>tabs</EM> utility appeared in PWB/Unix 1.0 (1977). A reduced version + shipped in Seventh Edition Unix (early 1979) and in 3BSD (later the + same year); it supported an option "-n" to set the first tab stop at + the left margin. That option is not specified by POSIX. + + The PWB/Unix <EM>tabs</EM> utility returned in System III (1980), and used + built-in tables to support a half-dozen hardcopy terminal (printer) + types. It also had logic to support setting the left margin, as well as a feature for copying the tab settings from a file. - Versions of the program in later releases of AT&T Unix, such as SVr4, - added support for the terminal database, but retained the tables to - support the printers. By this time, System V <STRONG>tput</STRONG> had incorporated the - tab stop initialization feature of BSD's <STRONG>tset</STRONG> from 1982, but employed + Versions of the program in later releases of AT&T Unix, such as SVr4, + added support for the terminal database, but retained the tables to + support the printers. By this time, System V <EM>tput</EM> had incorporated the + tab stop initialization feature of BSD's <EM>tset</EM> from 1982, but employed the <EM>terminfo</EM> database to do so. - The <STRONG>+m</STRONG> option was documented in the POSIX Base Specifications Issue 5 + The <STRONG>+m</STRONG> option was documented in the POSIX Base Specifications Issue 5 (Unix98, 1997), then omitted in Issue 6 (Unix03, 2004) without express motivation, though an introductory comment "and optionally adjusts the - margin" remains, overlooked in the removal. The <STRONG>tabs</STRONG> utility + margin" remains, overlooked in the removal. The <EM>tabs</EM> utility documented in Issues 6 and later has no mechanism for setting margins. - The <STRONG>+m</STRONG> option in <EM>ncurses</EM> <STRONG>tabs</STRONG> differs from the SVr4 feature by using - terminal capabilities rather than built-in tables. + The <STRONG>+m</STRONG> option in <EM>ncurses</EM>'s implementation differs from the SVr4 feature + by using terminal capabilities rather than built-in tables. - POSIX documents no limit on the number of tab stops. Other - implementations impose one; the limit is 20 in PWB/Unix's <STRONG>tabs</STRONG> utility. + POSIX documents no limit on the number of tab stops. Other + implementations impose one; the limit is 20 in PWB/Unix's <EM>tabs</EM> utility. While some terminals may not accept an arbitrary number of tab stops, - <EM>ncurses</EM> <STRONG>tabs</STRONG> attempts to set tab stops up to the right margin if the - list thereof is sufficiently long. + <EM>ncurses</EM> attempts to set tab stops up to the right margin if the list + thereof is sufficiently long. - The "Rationale" section of the Issue 6 <STRONG>tabs</STRONG> reference page details how - the committee considered redesigning the <STRONG>tabs</STRONG> and <STRONG>tput</STRONG> utilities, + The "Rationale" section of the Issue 6 <EM>tabs</EM> reference page details how + the committee considered redesigning the <EM>tabs</EM> and <EM>tput</EM> utilities, without settling on an improved solution. It claims that - "no known historical version of <EM>tabs</EM> supports the capability of - setting arbitrary tab stops." + no known historical version of <EM>tabs</EM> supports the capability of + setting arbitrary tab stops. The feature described in subsection "Explicit Lists" above was - implemented in PWB/Unix, and permitted the setting of abitrary tab + implemented in PWB/Unix, and permitted the setting of arbitrary tab stops nevertheless. </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE> <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>, <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>, <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG> - - -ncurses 6.5 2024-04-20 <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> +ncurses 6.6 2025-08-16 <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG> </PRE> <div class="nav"> <ul> @@ -270,7 +265,7 @@ ncurses 6.5 2024-04-20 <STRONG>< <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> +<li><a href="#h3-Standard-Tab-Stops">Standard Tab Stops</a></li> <li><a href="#h3-Margins">Margins</a></li> </ul> </li> |