333 lines
12 KiB
Groff
333 lines
12 KiB
Groff
'\" t
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.\"***************************************************************************
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.\" Copyright (c) 1998-2011,2012 Free Software Foundation, Inc. *
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.\" *
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.\" Permission is hereby granted, free of charge, to any person obtaining a *
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.\" copy of this software and associated documentation files (the *
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.\" "Software"), to deal in the Software without restriction, including *
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.\" without limitation the rights to use, copy, modify, merge, publish, *
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.\" distribute, distribute with modifications, sublicense, and/or sell *
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.\" copies of the Software, and to permit persons to whom the Software is *
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.\" furnished to do so, subject to the following conditions: *
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.\" *
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.\" The above copyright notice and this permission notice shall be included *
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.\" in all copies or substantial portions of the Software. *
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.\" *
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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.\" *
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.\" Except as contained in this notice, the name(s) of the above copyright *
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.\" holders shall not be used in advertising or otherwise to promote the *
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.\" sale, use or other dealings in this Software without prior written *
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.\" authorization. *
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.\"***************************************************************************
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.\"
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.\" $Id: tput.1,v 1.32 2012/07/14 21:06:45 tom Exp $
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.TH @TPUT@ 1 ""
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.ds d @TERMINFO@
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.ds n 1
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.SH NAME
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\fB@TPUT@\fR, \fBreset\fR \- initialize a terminal or query terminfo database
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.SH SYNOPSIS
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\fB@TPUT@\fR [\fB\-T\fR\fItype\fR] \fIcapname\fR [\fIparms\fR ... ]
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.br
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\fB@TPUT@\fR [\fB\-T\fR\fItype\fR] \fBinit\fR
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.br
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\fB@TPUT@\fR [\fB\-T\fR\fItype\fR] \fBreset\fR
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.br
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\fB@TPUT@\fR [\fB\-T\fR\fItype\fR] \fBlongname\fR
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.br
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\fB@TPUT@ \-S\fR \fB<<\fR
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.br
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\fB@TPUT@ \-V\fR
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.br
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.SH DESCRIPTION
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The \fB@TPUT@\fR utility uses the \fBterminfo\fR database to make the
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values of terminal-dependent capabilities and information available to
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the shell (see \fBsh\fR(1)), to initialize or reset the terminal, or
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return the long name of the requested terminal type.
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The result depends upon the capability's type:
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.RS
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.TP 5
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string
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\fB@TPUT@\fR writes the string to the standard output.
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No trailing newline is supplied.
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.TP
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integer
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\fB@TPUT@\fR writes the decimal value to the standard output,
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with a trailing newline.
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.TP
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boolean
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\fB@TPUT@\fR simply sets the exit code
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(\fB0\fR for TRUE if the terminal has the capability,
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\fB1\fR for FALSE if it does not),
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and writes nothing to the standard output.
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.RE
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.PP
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Before using a value returned on the standard output,
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the application should test the exit code
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(e.g., \fB$?\fR, see \fBsh\fR(1)) to be sure it is \fB0\fR.
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(See the \fBEXIT CODES\fR and \fBDIAGNOSTICS\fR sections.)
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For a complete list of capabilities
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and the \fIcapname\fR associated with each, see \fBterminfo\fR(5).
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.TP
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\fB\-T\fR\fItype\fR
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indicates the \fItype\fR of terminal.
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Normally this option is
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unnecessary, because the default is taken from the environment
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variable \fBTERM\fR.
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If \fB\-T\fR is specified, then the shell
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variables \fBLINES\fR and \fBCOLUMNS\fR will also be ignored.
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.TP
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\fIcapname\fR
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indicates the capability from the \fBterminfo\fR database. When
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\fBtermcap\fR support is compiled in, the \fBtermcap\fR name for
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the capability is also accepted.
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.TP
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\fIparms\fR
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If the capability is a string that takes parameters, the arguments
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\fIparms\fR will be instantiated into the string.
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.IP
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Most parameters are numbers.
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Only a few terminfo capabilities require string parameters;
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\fB@TPUT@\fR uses a table to decide which to pass as strings.
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Normally \fB@TPUT@\fR uses \fBtparm\fR (3X) to perform the substitution.
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If no parameters are given for the capability,
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\fB@TPUT@\fR writes the string without performing the substitution.
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.TP
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\fB\-S\fR
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allows more than one capability per invocation of \fB@TPUT@\fR. The
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capabilities must be passed to \fB@TPUT@\fR from the standard input
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instead of from the command line (see example).
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Only one \fIcapname\fR is allowed per line.
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The \fB\-S\fR option changes the
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meaning of the \fB0\fR and \fB1\fR boolean and string exit codes (see the
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EXIT CODES section).
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.IP
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Again, \fB@TPUT@\fR uses a table and the presence of parameters in its input
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to decide whether to use \fBtparm\fR (3X),
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and how to interpret the parameters.
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.TP
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\fB\-V\fR
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reports the version of ncurses which was used in this program, and exits.
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.TP
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\fBinit\fR
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If the \fBterminfo\fR database is present and an entry for the user's
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terminal exists (see \fB\-T\fR\fItype\fR, above), the following will
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occur:
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.RS
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.TP
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(1)
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if present, the terminal's initialization strings will be
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output as detailed in the \fBterminfo\fR(5) section on
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.IR "Tabs and Initialization" ,
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.TP
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(2)
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any delays (e.g., newline) specified in the entry will
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be set in the tty driver,
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.TP
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(3)
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tabs expansion will be turned on or off according to
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the specification in the entry, and
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.TP
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(4)
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if tabs are not expanded,
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standard tabs will be set (every 8 spaces).
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.RE
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.IP
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If an entry does not
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contain the information needed for any of the four above activities,
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that activity will silently be skipped.
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.TP
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\fBreset\fR
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Instead of putting out initialization strings, the terminal's
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reset strings will be output if present (\fBrs1\fR, \fBrs2\fR, \fBrs3\fR, \fBrf\fR).
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If the reset strings are not present, but initialization
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strings are, the initialization strings will be output.
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Otherwise, \fBreset\fR acts identically to \fBinit\fR.
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.TP
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\fBlongname\fR
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If the \fBterminfo\fR database is present and an entry for the
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user's terminal exists (see \fB\-T\fR\fItype\fR above), then the long name
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of the terminal will be put out. The long name is the last
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name in the first line of the terminal's description in the
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\fBterminfo\fR database [see \fBterm\fR(5)].
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.PP
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If \fB@TPUT@\fR is invoked by a link named \fBreset\fR, this has the
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same effect as \fB@TPUT@ reset\fR.
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See \fB@TSET@\fR for comparison, which has similar behavior.
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.SH EXAMPLES
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.TP 5
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\fB@TPUT@ init\fR
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Initialize the terminal according to the type of
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terminal in the environmental variable \fBTERM\fR. This
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command should be included in everyone's .profile after
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the environmental variable \fBTERM\fR has been exported, as
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illustrated on the \fBprofile\fR(5) manual page.
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.TP 5
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\fB@TPUT@ \-T5620 reset\fR
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Reset an AT&T 5620 terminal, overriding the type of
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terminal in the environmental variable \fBTERM\fR.
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.TP 5
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\fB@TPUT@ cup 0 0\fR
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Send the sequence to move the cursor to row \fB0\fR, column \fB0\fR
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(the upper left corner of the screen, usually known as the "home"
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cursor position).
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.TP 5
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\fB@TPUT@ clear\fR
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Echo the clear-screen sequence for the current terminal.
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.TP 5
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\fB@TPUT@ cols\fR
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Print the number of columns for the current terminal.
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.TP 5
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\fB@TPUT@ \-T450 cols\fR
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Print the number of columns for the 450 terminal.
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.TP 5
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\fBbold=`@TPUT@ smso` offbold=`@TPUT@ rmso`\fR
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Set the shell variables \fBbold\fR, to begin stand-out mode
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sequence, and \fBoffbold\fR, to end standout mode sequence,
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for the current terminal. This might be followed by a
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prompt: \fBecho "${bold}Please type in your name: ${offbold}\\c"\fR
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.TP 5
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\fB@TPUT@ hc\fR
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Set exit code to indicate if the current terminal is a hard copy terminal.
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.TP 5
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\fB@TPUT@ cup 23 4\fR
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Send the sequence to move the cursor to row 23, column 4.
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.TP 5
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\fB@TPUT@ cup\fR
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Send the terminfo string for cursor-movement, with no parameters substituted.
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.TP 5
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\fB@TPUT@ longname\fR
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Print the long name from the \fBterminfo\fR database for the
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type of terminal specified in the environmental
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variable \fBTERM\fR.
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.PP
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.RS 5
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\fB@TPUT@ \-S <<!\fR
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.br
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\fB> clear\fR
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.br
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\fB> cup 10 10\fR
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.br
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\fB> bold\fR
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.br
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\fB> !\fR
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.RE
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.TP 5
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\&
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This example shows \fB@TPUT@\fR processing several capabilities in one invocation.
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It clears the screen,
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moves the cursor to position 10, 10
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and turns on bold (extra bright) mode.
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The list is terminated by an exclamation mark (\fB!\fR) on a line by itself.
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.SH FILES
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.TP
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\fB\*d\fR
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compiled terminal description database
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.TP
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\fB@DATADIR@/tabset/*\fR
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tab settings for some terminals, in a format
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appropriate to be output to the terminal (escape
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sequences that set margins and tabs); for more
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information, see the "Tabs and Initialization"
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section of \fBterminfo\fR(5)
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.SH EXIT CODES
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If the \fB\-S\fR option is used,
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\fB@TPUT@\fR checks for errors from each line,
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and if any errors are found, will set the exit code to 4 plus the
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number of lines with errors.
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If no errors are found, the exit code is \fB0\fR.
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No indication of which line failed can be given so
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exit code \fB1\fR will never appear. Exit codes \fB2\fR, \fB3\fR, and
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\fB4\fR retain their usual interpretation.
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If the \fB\-S\fR option is not used,
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the exit code depends on the type of \fIcapname\fR:
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.RS 5
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.TP
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.I boolean
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a value of \fB0\fR is set for TRUE and \fB1\fR for FALSE.
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.TP
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.I string
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a value of \fB0\fR is set if the
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\fIcapname\fR is defined for this terminal \fItype\fR (the value of
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\fIcapname\fR is returned on standard output);
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a value of \fB1\fR is set if \fIcapname\fR
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is not defined for this terminal \fItype\fR
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(nothing is written to standard output).
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.TP
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.I integer
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a value of \fB0\fR is always set,
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whether or not \fIcapname\fR is defined for this terminal \fItype\fR.
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To determine if \fIcapname\fR is defined for this terminal \fItype\fR,
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the user must test the value written to standard output.
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A value of \fB\-1\fR
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means that \fIcapname\fR is not defined for this terminal \fItype\fR.
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.TP
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.I other
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\fBreset\fR or \fBinit\fR may fail to find their respective files.
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In that case, the exit code is set to 4 + \fBerrno\fR.
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.RE
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.PP
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Any other exit code indicates an error; see the DIAGNOSTICS section.
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.SH DIAGNOSTICS
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\fB@TPUT@\fR prints the following error messages and sets the corresponding exit
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codes.
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.PP
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.ne 15
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.TS
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l l.
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exit code error message
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=
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\fB0\fR T{
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(\fIcapname\fR is a numeric variable that is not specified in the
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\fBterminfo\fR(5) database for this terminal type, e.g.
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\fB@TPUT@ \-T450 lines\fR and \fB@TPUT@ \-T2621 xmc\fR)
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T}
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\fB1\fR no error message is printed, see the \fBEXIT CODES\fR section.
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\fB2\fR usage error
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\fB3\fR unknown terminal \fItype\fR or no \fBterminfo\fR database
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\fB4\fR unknown \fBterminfo\fR capability \fIcapname\fR
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\fB>4\fR error occurred in \-S
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=
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.TE
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.SH PORTABILITY
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.PP
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The \fBlongname\fR and \fB\-S\fR options, and the parameter-substitution
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features used in the \fBcup\fR example, are not supported in BSD curses or in
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AT&T/USL curses before SVr4.
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.PP
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X/Open documents only the operands for \fBclear\fP, \fBinit\fP and \fBreset\fP.
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In this implementation, \fBclear\fP is part of the \fIcapname\fR support.
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Other implementations of \fB@TPUT@\fP on
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SVr4-based systems such as Solaris, IRIX64 and HPUX
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as well as others such as AIX and Tru64
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provide support for \fIcapname\fR operands.
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.PP
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A few platforms such as FreeBSD and NetBSD recognize termcap names rather
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than terminfo capability names in their respective \fB@TPUT@\fP commands.
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.PP
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Most implementations which provide support for \fIcapname\fR operands
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use the \fItparm\fP function to expand parameters in it.
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That function expects a mixture of numeric and string parameters,
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requiring \fB@TPUT@\fP to know which type to use.
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This implementation uses a table to determine that for
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the standard \fIcapname\fR operands, and an internal library
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function to analyze nonstandard \fIcapname\fR operands.
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Other implementations may simply guess that an operand containing only digits
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is intended to be a number.
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.SH SEE ALSO
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\fB@CLEAR@\fR(1),
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\fBstty\fR(1),
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\fBtabs\fR(\*n),
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\fBterminfo\fR(5),
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\fBcurs_termcap\fR(3X).
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.PP
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This describes \fBncurses\fR
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version @NCURSES_MAJOR@.@NCURSES_MINOR@ (patch @NCURSES_PATCH@).
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