ncurses 6.1 - patch 20190216

[ncurses.git] / man / curs_add_wchstr.3x

diff --git a/man/curs_add_wchstr.3x b/man/curs_add_wchstr.3x
index 17d3446985003225e8b4fc9f21f8ca2a118e81f2..a7729b903b8293cac463ff09b0e9d339b170c25d 100644 (file)
--- a/man/curs_add_wchstr.3x
+++ b/man/curs_add_wchstr.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright (c) 2002 Free Software Foundation, Inc.                        *
+.\" Copyright (c) 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            *
@@ -26,10 +26,15 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_add_wchstr.3x,v 1.1 2002/02/23 22:15:55 tom Exp $
+.\" $Id: curs_add_wchstr.3x,v 1.11 2017/11/18 23:56:00 tom Exp $
 .TH curs_add_wchstr 3X ""
+.de bP
+.ie n  .IP \(bu 4
+.el    .IP \(bu 2
+..
+.na
+.hy 0
 .SH NAME
-.PP
 \fBadd_wchstr\fR,
 \fBadd_wchnstr\fR,
 \fBwadd_wchstr\fR,
@@ -38,10 +43,12 @@
 \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>
-
 .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
@@ -59,40 +66,53 @@
 \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.
-If \fBn\fR=\fB-1\fR then the whole array is copied,
+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,
-rather then wrapping it around to the new line.
+.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 RETURN VALUE
+All functions return the integer \fBERR\fR upon failure and \fBOK\fR on success.
+.PP
+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 RETURN VALUES
-All routines return the integer \fBERR\fR upon failure and \fBOK\fR on success.
 .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).