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e5d1530ca2
+ improve manpage typography. + improve discussion in curs_addch.3x of the use of unctrl to display nonprintable characters. + add a note in terminfo.5 explaining that no-parameter strings such as sgr0 or cnorm should not be used with tparm.
80 lines
3.9 KiB
Plaintext
80 lines
3.9 KiB
Plaintext
.\"***************************************************************************
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.\" Copyright 2018-2019,2020 Thomas E. Dickey *
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.\" Copyright 1998-2010,2017 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: curs_insch.3x,v 1.19 2020/10/18 00:21:39 tom Exp $
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.TH curs_insch 3X ""
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.ie \n(.g .ds `` \(lq
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.el .ds `` ``
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.ie \n(.g .ds '' \(rq
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.el .ds '' ''
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.SH NAME
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\fBinsch\fR,
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\fBwinsch\fR,
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\fBmvinsch\fR,
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\fBmvwinsch\fR \- insert a character before cursor in a \fBcurses\fR window
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.SH SYNOPSIS
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\fB#include <curses.h>\fR
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.sp
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\fBint insch(chtype \fP\fIch\fP\fB);\fR
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.br
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\fBint winsch(WINDOW *\fP\fIwin\fP\fB, chtype \fP\fIch\fP\fB);\fR
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.sp
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\fBint mvinsch(int \fP\fIy\fP\fB, int \fP\fIx\fP\fB, chtype \fP\fIch\fP\fB);\fR
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.br
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\fBint mvwinsch(WINDOW *\fP\fIwin\fP\fB, int \fP\fIy\fP\fB, int \fP\fIx\fP\fB, chtype \fP\fIch\fP\fB);\fR
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.br
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.SH DESCRIPTION
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These routines insert the character \fIch\fR before the character under the
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cursor.
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All characters to the right of the cursor are moved one space to the
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right, with the possibility of the rightmost character on the line being lost.
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The insertion operation does not change the cursor position.
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.SH RETURN VALUE
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All routines that return an integer return \fBERR\fR upon failure and \fBOK\fP
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(SVr4 specifies only "an integer value other than \fBERR\fR")
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upon successful completion,
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unless otherwise noted in the preceding routine descriptions.
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.PP
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Functions with a \*(``mv\*('' prefix first perform a cursor movement using
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\fBwmove\fP, and return an error if the position is outside the window,
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or if the window pointer is null.
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.SH NOTES
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These routines do not necessarily imply use of a hardware insert character
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feature.
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.PP
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Note that \fBinsch\fR, \fBmvinsch\fR, and \fBmvwinsch\fR may be macros.
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.SH PORTABILITY
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These functions are described in the XSI Curses standard, Issue 4.
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.SH SEE ALSO
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\fBcurses\fR(3X).
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.PP
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Comparable functions in the wide-character (ncursesw) library are
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described in
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\fBcurs_ins_wch\fR(3X).
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