ncurses 6.1 - patch 20191005

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

diff --git a/man/curs_instr.3x b/man/curs_instr.3x
index d3a7e6f7d085b8ffe9c8a06975a68980cc6efe5a..2c148bc404dd7633b93d1049e6c968eb97574b11 100644 (file)
--- a/man/curs_instr.3x
+++ b/man/curs_instr.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright (c) 1998 Free Software Foundation, Inc.                        *
+.\" Copyright (c) 1998-2017,2018 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            *
@@ -26,15 +26,28 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_instr.3x,v 1.8 1998/03/11 21:12:53 juergen Exp $
+.\" $Id: curs_instr.3x,v 1.19 2018/07/28 21:34:06 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, \fBwinstr\fR, \fBwinnstr\fR,
-\fBmvinstr\fR, \fBmvinnstr\fR, \fBmvwinstr\fR, \fBmvwinnstr\fR - get a string
-of characters from a \fBcurses\fR window
+\fBinstr\fR,
+\fBinnstr\fR,
+\fBwinstr\fR,
+\fBwinnstr\fR,
+\fBmvinstr\fR,
+\fBmvinnstr\fR,
+\fBmvwinstr\fR,
+\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
@@ -54,19 +67,27 @@ of characters from a \fBcurses\fR window
 .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 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
-The XSI Curses
-error conditions \fBEILSEQ\fR and \fBEILOVERFLOW\fR associated with
-extended-level conformance are not yet detected (this implementation does not
-yet support XPG4 multi-byte characters).
 SVr4 does not
 document whether a length limit includes or excludes the trailing NUL.
 .PP
@@ -75,10 +96,3 @@ value for \fIn\fR.
 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:
-