ncurses 6.2 - patch 20201205

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

diff --git a/man/curs_addstr.3x b/man/curs_addstr.3x
index 87d6b5c5c6546798c402bc464760133b3ae77fd3..6f280e64ee1bae44e5606eb415cd21d5fcfd5ab1 100644 (file)
--- a/man/curs_addstr.3x
+++ b/man/curs_addstr.3x
@@ -1,5 +1,6 @@
 .\"***************************************************************************
 .\"***************************************************************************

-.\" Copyright (c) 1998-2017,2019 Free Software Foundation, Inc.              *
+.\" Copyright 2019,2020 Thomas E. Dickey                                     *
+.\" Copyright 1998-2012,2017 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            *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *


@@ -26,7 +27,7 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"

-.\" $Id: curs_addstr.3x,v 1.19 2019/11/30 21:06:30 tom Exp $
+.\" $Id: curs_addstr.3x,v 1.23 2020/10/17 23:11:02 tom Exp $

 .TH curs_addstr 3X ""
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``
 .TH curs_addstr 3X ""
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``


@@ -60,7 +61,7 @@
 \fBint waddstr(WINDOW *\fR\fIwin\fR\fB, const char *\fR\fIstr\fR\fB);\fR
 .br
 \fBint waddnstr(WINDOW *\fR\fIwin\fR\fB, const char *\fR\fIstr\fR\fB, int \fR\fIn\fR\fB);\fR
 \fBint waddstr(WINDOW *\fR\fIwin\fR\fB, const char *\fR\fIstr\fR\fB);\fR
 .br
 \fBint waddnstr(WINDOW *\fR\fIwin\fR\fB, const char *\fR\fIstr\fR\fB, int \fR\fIn\fR\fB);\fR

-.br
+.sp

 \fBint mvaddstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, const char *\fR\fIstr\fR\fB);\fR
 .br
 \fBint mvaddnstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, const char *\fR\fIstr\fR\fB, int \fR\fIn\fR\fB);\fR
 \fBint mvaddstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, const char *\fR\fIstr\fR\fB);\fR
 .br
 \fBint mvaddnstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, const char *\fR\fIstr\fR\fB, int \fR\fIn\fR\fB);\fR


@@ -72,14 +73,14 @@
 .SH DESCRIPTION
 These functions write the (null-terminated) character string
 \fIstr\fR on the given window.
 .SH DESCRIPTION
 These functions write the (null-terminated) character string
 \fIstr\fR on the given window.

-It is similar to calling \fBwaddch\fR once for each character in the string.
+It is similar to calling \fBwaddch\fR once for each byte in the string.

 .PP
 The \fImv\fR functions perform cursor movement once, before writing any
 characters.
 Thereafter, the cursor is advanced as a side-effect of writing to the window.
 .PP
 The four functions with \fIn\fR as the last argument
 .PP
 The \fImv\fR functions perform cursor movement once, before writing any
 characters.
 Thereafter, the cursor is advanced as a side-effect of writing to the window.
 .PP
 The four functions with \fIn\fR as the last argument

-write at most \fIn\fR characters,
+write at most \fIn\fR bytes,

 or until a terminating null is reached.
 If \fIn\fR is \-1, then the entire string will be added.
 .SH RETURN VALUE
 or until a terminating null is reached.
 If \fIn\fR is \-1, then the entire string will be added.
 .SH RETURN VALUE


@@ -97,6 +98,18 @@ if the corresponding calls to \fBwaddch\fP return an error.
 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.
 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.

+If an error is returned by the \fBwmove\fP,
+no characters are added to the window.
+.PP
+If an error is returned by \fBwaddch\fP
+(e.g.,
+because the window is not large enough,
+or an illegal byte sequence was detected)
+only part of the string may be added.
+Aside from that,
+there is a special case in \fBwaddch\fP where an error may be
+returned after successfully writing a character to the lower-right corner
+of a window when \fBscrollok\fP is disabled.

 .SH NOTES
 All of these functions except \fBwaddnstr\fR may be macros.
 .SH PORTABILITY
 .SH NOTES
 All of these functions except \fBwaddnstr\fR may be macros.
 .SH PORTABILITY