Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 378 insertions, 0 deletions

diff --git a/upstream/fedora-rawhide/man3/curs_slk.3x b/upstream/fedora-rawhide/man3/curs_slk.3x
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+.\"***************************************************************************
+.\" Copyright 2018-2022,2023 Thomas E. Dickey                                *
+.\" Copyright 1998-2016,2017 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            *
+.\" "Software"), to deal in the Software without restriction, including      *
+.\" without limitation the rights to use, copy, modify, merge, publish,      *
+.\" distribute, distribute with modifications, sublicense, and/or sell       *
+.\" copies of the Software, and to permit persons to whom the Software is    *
+.\" furnished to do so, subject to the following conditions:                 *
+.\"                                                                          *
+.\" The above copyright notice and this permission notice shall be included  *
+.\" in all copies or substantial portions of the Software.                   *
+.\"                                                                          *
+.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+.\"                                                                          *
+.\" Except as contained in this notice, the name(s) of the above copyright   *
+.\" holders shall not be used in advertising or otherwise to promote the     *
+.\" sale, use or other dealings in this Software without prior written       *
+.\" authorization.                                                           *
+.\"***************************************************************************
+.\"
+.\" $Id: curs_slk.3x,v 1.67 2023/12/16 21:18:45 tom Exp $
+.TH curs_slk 3X 2023-12-16 "ncurses 6.4" "Library calls"
+.ie \n(.g \{\
+.ds `` \(lq
+.ds '' \(rq
+.\}
+.el \{\
+.ie t .ds `` ``
+.el   .ds `` ""
+.ie t .ds '' ''
+.el   .ds '' ""
+.\}
+.
+.de bP
+.ie n  .IP \(bu 4
+.el    .IP \(bu 2
+..
+.SH NAME
+\fB\%slk_init\fP,
+\fB\%slk_set\fP,
+\fB\%slk_wset\fP,
+\fB\%slk_refresh\fP,
+\fB\%slk_noutrefresh\fP,
+\fB\%slk_label\fP,
+\fB\%slk_clear\fP,
+\fB\%slk_restore\fP,
+\fB\%slk_touch\fP,
+\fB\%slk_attron\fP,
+\fB\%slk_attrset\fP,
+\fB\%slk_attroff\fP,
+\fB\%slk_attr_on\fP,
+\fB\%slk_attr_set\fP,
+\fB\%slk_attr_off\fP,
+\fB\%slk_attr\fP,
+\fB\%slk_color\fP,
+\fB\%extended_slk_color\fP \-
+\fIcurses\fR soft label key routines
+.SH SYNOPSIS
+.nf
+\fB#include <curses.h>
+.PP
+\fBint slk_init(int \fIfmt\fP);
+.PP
+\fBint slk_set(int \fIlabnum\fP, const char *\fIlabel\fP, int \fIalign\fP);
+\fBint slk_wset(int \fIlabnum\fP, const wchar_t *\fIlabel\fP, int \fIalign\fP);
+.PP
+\fBchar *slk_label(int \fIlabnum\fP);
+.PP
+\fBint slk_refresh(void);
+\fBint slk_noutrefresh(void);
+\fBint slk_clear(void);
+\fBint slk_restore(void);
+\fBint slk_touch(void);
+.PP
+\fBint slk_attron(const chtype \fIattrs\fP);
+\fBint slk_attroff(const chtype \fIattrs\fP);
+\fBint slk_attrset(const chtype \fIattrs\fP);
+\fBint slk_attr_on(attr_t \fIattrs\fP, void *\fIopts\fP);
+\fBint slk_attr_off(const attr_t \fIattrs\fP, void *\fIopts\fP);
+\fBint slk_attr_set(const attr_t \fIattrs\fP, short \fIpair\fP, void*\fIopts\fP);
+\fI/* extension */
+\fBattr_t slk_attr(void);
+.PP
+\fBint slk_color(short \fIpair\fP);
+\fI/* extension */
+\fBint extended_slk_color(int \fIpair\fP);
+.fi
+.SH DESCRIPTION
+These functions manipulate the soft function key labels that some
+hardware terminals support.
+For those terminals that do not have soft labels,
+\fIcurses\fP takes over the bottom line of \fB\%stdscr\fP,
+reducing its vertical size and the value of \fBLINES\fP by one.
+By default,
+\fIcurses\fP uses eight labels of up to eight characters each.
+.PP
+\fI\%ncurses\fP
+furthermore supports a mode comprising twelve labels of up to five
+characters each,
+following a convention associated with the IBM PC/AT keyboard.
+\fI\%ncurses\fP simulates this mode by taking over up to two lines at
+the bottom of the screen;
+it does not try to use any hardware support for this
+mode.
+.SS Initialization
+\fB\%slk_init\fP must be called before \fB\%initscr\fP or
+\fB\%newterm\fP.
+If \fB\%initscr\fP eventually uses a line from \fB\%stdscr\fP to
+emulate the soft labels,
+then \fIfmt\fP determines how the labels are arranged on the screen.
+.TP 3
+.B 0
+indicates a 3\-2\-3 arrangement of
+the labels.
+.TP 3
+.B 1
+indicates a 4\-4 arrangement
+.TP 3
+.B 2
+indicates the PC-like 4\-4\-4 mode.
+.TP 3
+.B 3
+is again the PC-like 4\-4\-4 mode,
+but in addition an index line is generated,
+helping the user to associate each label with its numbered function key.
+\fBLINES\fP and the vertical size of \fB\%stdscr\fP are further reduced.
+.SS Labels
+Populate the labels with normal strings
+(\fB\%slk_set\fP)
+or wide-character strings
+(\fB\%slk_wset\fP).
+Each function takes three parameters.
+.TP 8 \" "labnum" + 2n
+.I labnum
+is the label number, from \fB1\fP to \fB8\fP
+(12 if \fIfmt\fP in \fB\%slk_init\fP is \fB2\fP or \fB3\fP);
+.TP
+.I label
+is be the string to put on the label,
+up to eight
+(five if \fIfmt\fP in \fB\%slk_init\fP is \fB2\fP or \fB3\fP)
+characters in length.
+A empty string or a null pointer sets up a blank label.
+.TP
+.I align
+is
+.BR 0 ,
+.BR 1 ,
+or
+.BR 2 ,
+aligning
+.I label
+to the left,
+center,
+or right,
+respectively,
+within the 8 (5) character cells housing it.
+.PP
+\fB\%slk_label\fP obtains the string assigned to label number
+\fIlabnum\fP,
+with any leading and trailing blanks stripped.
+.SS "Screen Updates"
+\fB\%slk_refresh\fP and \fB\%slk_noutrefresh\fP affect the soft key
+label lines as \fB\%wrefresh\fP and \fB\%wnoutrefresh\fP do the
+.I curses
+window.
+.PP
+The \fB\%slk_clear\fP routine clears the soft labels from the screen.
+.PP
+The \fB\%slk_restore\fP routine restores the soft labels to the screen
+after a \fB\%slk_clear\fP has been performed.
+.PP
+The \fB\%slk_touch\fP routine forces all the soft labels to be output
+the next time a \fB\%slk_noutrefresh\fP is performed.
+.SS "Video Attributes"
+The
+\fB\%slk_attron\fP,
+\fB\%slk_attrset\fP,
+\fB\%slk_attroff\fP,
+and
+\fB\%slk_attr\fP
+routines correspond to
+\fB\%attron\fP,
+\fB\%attrset\fP,
+\fB\%attroff\fP,
+and
+\fB\%attr_get\fP,
+respectively.
+They have an effect only if soft labels are simulated on the bottom line
+of the screen.
+The default highlight for soft key labels is \fB\%A_STANDOUT\fP
+(as in System\ V \fIcurses\fP,
+which does not document this fact).
+.SS Colors
+The \fB\%slk_color\fP routine corresponds to \fB\%color_set\fP.
+It has an effect only
+if soft labels are simulated on the bottom line of the screen.
+.PP
+Because \fB\%slk_color\fP accepts
+only \fIshort\fP
+(signed 16-bit integer)
+values,
+this implementation provides
+\fB\%extended_slk_color\fP,
+which accepts an \fIint\fP value of at least 32 bits.
+.SH RETURN VALUE
+Routines that return an integer return \fBERR\fP upon failure and
+\fBOK\fP
+(SVr4 specifies only
+\*(``an integer value other than \fBERR\fP\*('')
+upon successful completion.
+.PP
+X/Open Curses defines no error conditions.
+.PP
+In this implementation
+.RS 3
+.TP 5
+\fBslk_attr\fP
+returns the attribute used for the soft keys.
+.TP 5
+\fBslk_attroff\fP, \fBslk_attron\fP, \fBslk_clear\fP, \fBslk_noutrefresh\fP, \fBslk_refresh\fP, \fBslk_touch\fP
+return an error
+if the terminal or the softkeys were not initialized.
+.TP 5
+\fBslk_attrset\fP
+returns an error
+if the terminal or the softkeys were not initialized.
+.TP 5
+\fBslk_attr_set\fP
+returns an error
+if the terminal or the softkeys were not initialized, or
+the color pair is outside the range 0..\fBCOLOR_PAIRS\fP\-1.
+.TP 5
+\fBslk_color\fP
+returns an error
+if the terminal or the softkeys were not initialized, or
+the color pair is outside the range 0..\fBCOLOR_PAIRS\fP\-1.
+.TP 5
+\fBslk_init\fP
+returns an error
+if the format parameter is outside the range 0..3.
+.TP 5
+\fBslk_label\fP
+returns \fBNULL\fP on error.
+.TP 5
+\fBslk_set\fP
+returns an error
+if the terminal or the softkeys were not initialized, or
+the \fIlabnum\fP parameter is outside the range of label counts, or
+if the format parameter is outside the range 0..2, or if
+memory for the labels cannot be allocated.
+.RE
+.SH NOTES
+Most applications would use \fB\%slk_noutrefresh\fP because a
+\fB\%wrefresh\fP is likely to follow soon.
+.SH EXTENSIONS
+X/Open Curses documents the \fIopts\fP argument
+as reserved for future use,
+saying that it must be null.
+This implementation
+uses that parameter in ABI 6 for the functions which have a color pair
+parameter to support extended color pairs.
+.PP
+For functions which modify the color,
+e.g.,
+\fB\%slk_attr_set\fP,
+if \fIopts\fP is set it is treated as a pointer to \fIint\fP,
+and used to set the color pair instead of the \fIshort\fP pair
+parameter.
+.SH PORTABILITY
+X/Open Curses, Issue 4, describes these functions,
+with some differences from SVr4 \fIcurses\fP:
+.bP
+X/Open added functions like the SVr4 attribute-manipulation functions
+\fB\%slk_attron\fP,
+\fB\%slk_attroff\fP,
+and
+\fB\%slk_attrset\fP,
+but which use \fI\%attr_t\fP parameters
+(rather than \fI\%chtype\fP),
+along with a reserved \fIopts\fP parameter.
+.IP
+Two of these new functions
+(unlike the SVr4 functions)
+have no provision for color:
+\fB\%slk_attr_on\fP and \fB\%slk_attr_off\fP.
+.IP
+The third function \%(\fBslk_attr_set\fP) has a color pair parameter.
+.bP
+It added \fIconst\fP qualifiers to parameters (unnecessarily),
+and
+.bP
+It added \fB\%slk_color\fP.
+.PP
+Although \fB\%slk_start\fP is declared in the \fIcurses\fP header file,
+it was not documented by SVr4 other than its presence in a list
+of libtermlib.so.1 symbols.
+Reading the source code (i.e., Illumos):
+.bP
+\fB\%slk_start\fP has two parameters:
+.RS
+.bP
+\fIng\fP (number of groups) and
+.bP
+\fIgp\fP (group pointer).
+.RE
+.bP
+Soft-key groups are an array of \fIng\fP integers.
+.bP
+In SVr4, \fB\%slk_init\fP calls \fB\%slk_start\fP passing a null for \fIgp\fP.
+For this case, \fB\%slk_start\fP uses the number of groups \fIng\fP
+(3 for the 3-2-3 layout, 2 for the 4-4 layout) which \fB\%slk_init\fP provided.
+.IP
+If \fIng\fP is neither 2 or 3,
+\fB\%slk_start\fP checks the terminfo \fBfln\fP (label_format) capability,
+interpreting that as a comma-separated list of numbers,
+e.g., \*(``3,2,3\*('' for the 3-2-3 layout.
+.IP
+Finally, if there is no \fBfln\fP capability,
+\fB\%slk_start\fP returns \fBERR\fP.
+.bP
+If \fB\%slk_start\fP is given a non-null \fIgp\fP,
+it copies the \fIng\fP elements of the group of soft-keys, up to 16.
+.IP
+If there are more than 16 elements, \fB\%slk_start\fP returns an error.
+.bP
+The format codes \fB2\fP and \fB3\fP for \fB\%slk_init\fP
+were added by \fI\%ncurses\fP in 1996.
+PDCurses 2.4 added this feature in 2001.
+.PP
+The function \fB\%slk_attr\fP was added by \fI\%ncurses\fP in 1996.
+.PP
+X/Open Curses does not specify a limit for the number of colors and
+color pairs which a terminal can support.
+However, in its use of \fIshort\fP for the parameters,
+it carries over SVr4's implementation detail for the compiled
+terminfo database, which uses signed 16-bit numbers.
+This implementation provides extended versions of those functions
+which use \fIint\fP parameters,
+allowing applications to use larger color- and pair-numbers.
+.SH HISTORY
+SVr3 introduced these functions:
+  \fBslk_clear\fP
+  \fBslk_init\fP
+  \fBslk_label\fP
+  \fBslk_noutrefresh\fP
+  \fBslk_refresh\fP
+  \fBslk_restore\fP
+  \fBslk_set\fP
+  \fBslk_touch\fP
+.PP
+SVr4 added these functions:
+  \fBslk_attroff\fP
+  \fBslk_attron\fP
+  \fBslk_attrset\fP
+  \fBslk_start\fP
+.PP
+X/Open Curses added these:
+  \fBslk_attr_off\fP
+  \fBslk_attr_on\fP
+  \fBslk_attr_set\fP
+  \fBslk_color\fP
+  \fBslk_wset\fP
+.SH SEE ALSO
+\fB\%curses\fP(3X),
+\fB\%curs_attr\fP(3X),
+\fB\%curs_initscr\fP(3X),
+\fB\%curs_refresh\fP(3X),
+\fB\%curs_variables\fP(3X)