.\"***************************************************************************
-.\" Copyright (c) 2002-2005,2010 Free Software Foundation, Inc. *
+.\" Copyright 2019,2020 Thomas E. Dickey *
+.\" Copyright 2002-2012,2017 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 *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_add_wchstr.3x,v 1.8 2010/08/14 23:29:16 tom Exp $
+.\" $Id: curs_add_wchstr.3x,v 1.14 2020/10/17 23:11:38 tom Exp $
.TH curs_add_wchstr 3X ""
+.ie \n(.g .ds `` \(lq
+.el .ds `` ``
+.ie \n(.g .ds '' \(rq
+.el .ds '' ''
+.de bP
+.ie n .IP \(bu 4
+.el .IP \(bu 2
+..
+.na
+.hy 0
.SH NAME
\fBadd_wchstr\fR,
\fBadd_wchnstr\fR,
\fBmvadd_wchnstr\fR,
\fBmvwadd_wchstr\fR,
\fBmvwadd_wchnstr\fR \- add an array of complex characters (and attributes) to a curses window
+.ad
+.hy
.SH SYNOPSIS
-.B #include <curses.h>
-.PP
.nf
+\fB#include <curses.h>\fR
+.PP
\fBint add_wchstr(const cchar_t *\fR\fIwchstr\fR\fB);\fR
.br
\fBint add_wchnstr(const cchar_t *\fR\fIwchstr\fR\fB, int \fR\fIn\fR\fB);\fR
\fBint wadd_wchstr(WINDOW *\fR \fIwin\fR\fB, const cchar_t *\fR\fIwchstr\fR\fB);\fR
.br
\fBint wadd_wchnstr(WINDOW *\fR \fIwin\fR\fB, const cchar_t *\fR\fIwchstr\fR\fB, int \fR\fIn\fR\fB);\fR
-.br
+.sp
\fBint mvadd_wchstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, const cchar_t *\fR\fIwchstr\fR\fB);\fR
.br
\fBint mvadd_wchnstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, const cchar_t *\fR\fIwchstr\fR\fB, int \fR\fIn\fR\fB);\fR
\fBint mvwadd_wchnstr(WINDOW *\fR\fIwin\fR\fB, int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, const cchar_t *\fR\fIwchstr\fR\fB, int \fR\fIn\fR\fB);\fR
.fi
.SH DESCRIPTION
-These routines copy the array of complex characters \fIwchstr\fR
-into the window image structure at and after the current cursor position.
-The four routines with \fIn\fR as the last
-argument copy at most \fIn\fR elements, but no more than will fit on the line.
+These functions copy the (null-terminated)
+array of complex characters \fIwchstr\fR
+into the window image structure
+starting at the current cursor position.
+The four functions with \fIn\fR as the last
+argument copy at most \fIn\fR elements,
+but no more than will fit on the line.
If \fBn\fR=\fB\-1\fR then the whole array is copied,
to the maximum number of characters that will fit on the line.
.PP
The window cursor is \fInot\fR advanced.
-These routines work faster than \fBwaddnstr\fR.
-On the other hand, they do not perform checking
+These functions work faster than \fBwaddnstr\fR.
+On the other hand:
+.bP
+they do not perform checking
(such as for the newline, backspace, or carriage return characters),
+.bP
they do not advance the current cursor position,
-they do not expand other control characters to ^-escapes,
-and they truncate the string if it crosses the right margin,
+.bP
+they do not expand other control characters to ^-escapes, and
+.bP
+they truncate the string if it crosses the right margin,
rather than wrapping it around to the new line.
.PP
-These routines end successfully
+These functions end successfully
on encountering a null \fIcchar_t\fR, or
when they have filled the current line.
If a complex character cannot completely fit at the end of the current line,
the remaining columns are filled with the background character and rendition.
-.SH NOTES
-All functions except \fBwadd_wchnstr\fR may be macros.
-.SH RETURN VALUES
-All routines return the integer \fBERR\fR upon failure and \fBOK\fR on success.
+.SH RETURN VALUE
+All functions return the integer \fBERR\fR upon failure and \fBOK\fR on success.
.PP
-Functions with a "mv" prefix first perform a cursor movement using
+X/Open does not define any error conditions.
+This implementation returns an error
+if the window pointer is null.
+.PP
+Functions with a \*(``mv\*('' prefix first perform a cursor movement using
\fBwmove\fP, and return an error if the position is outside the window,
or if the window pointer is null.
+.SH NOTES
+All functions except \fBwadd_wchnstr\fR may be macros.
.SH PORTABILITY
-All these entry points are described in the XSI Curses standard, Issue 4.
+These entry points are described in the XSI Curses standard, Issue 4.
.SH SEE ALSO
-\fBcurses\fR(3X),
-\fBcurs_addchstr\fR(3X),
-\fBcurs_addwstr\fR(3X)
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
+\fBcurs_addwstr\fR(3X),
+\fBcurses\fR(3X).
+.PP
+Comparable functions in the narrow-character (ncurses) library are
+described in
+\fBcurs_addchstr\fR(3X).
projects / ncurses.git / blobdiff