.\"***************************************************************************
-.\" Copyright (c) 1998,2001,2005 Free Software Foundation, Inc. *
+.\" Copyright 2018,2020 Thomas E. Dickey *
+.\" Copyright 1998-2010,2017 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_instr.3x,v 1.12 2005/05/15 17:48:23 tom Exp $
+.\" $Id: curs_instr.3x,v 1.20 2020/02/02 23:34:34 tom Exp $
.TH curs_instr 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
+..
.SH NAME
\fBinstr\fR,
\fBinnstr\fR,
\fBmvinstr\fR,
\fBmvinnstr\fR,
\fBmvwinstr\fR,
-\fBmvwinnstr\fR - get a string of characters from a \fBcurses\fR window
+\fBmvwinnstr\fR \- get a string of characters from a \fBcurses\fR window
.SH SYNOPSIS
\fB#include <curses.h>\fR
-
+.sp
\fBint instr(char *str);\fR
.br
\fBint innstr(char *str, int n);\fR
.SH DESCRIPTION
These routines return a string of characters in \fIstr\fR, extracted starting
at the current cursor position in the named window.
-Attributes are stripped from the characters. The four
+Attributes are stripped from the characters.
+The four
functions with \fIn\fR as the last argument return a leading substring at most
\fIn\fR characters long (exclusive of the trailing NUL).
.SH RETURN VALUE
All of the functions return \fBERR\fR upon failure,
or the number of characters actually read into the string.
.PP
-X/Open defines no error conditions.
-In this implementation,
-if the window parameter is null or the str parameter is null,
-a zero is returned.
+X/Open Curses defines no error conditions.
+In this implementation:
+.bP
+If the \fIwin\fP parameter is null, an error is returned,
+.bP
+If the \fIchstr\fP parameter is null, an error is returned,
+.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
Note that all routines except \fBwinnstr\fR may be macros.
.SH PORTABILITY
In this case, the functions return the string ending at the right margin.
.SH SEE ALSO
\fBcurses\fR(3X).
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
-