ncurses 6.1 - patch 20191130

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

diff --git a/man/form_field_buffer.3x b/man/form_field_buffer.3x
index 566072f55ddb29f021ff716a26258a1800089605..93299186675fb73d6a391d549b2a1ed2a1121e7e 100644 (file)
--- a/man/form_field_buffer.3x
+++ b/man/form_field_buffer.3x
@@ -1,6 +1,6 @@
 '\" t
 .\"***************************************************************************
-.\" Copyright (c) 1998-2006,2008 Free Software Foundation, Inc.              *
+.\" Copyright (c) 1998-2018,2019 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            *
@@ -27,13 +27,21 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: form_field_buffer.3x,v 1.15 2008/10/18 18:35:17 tom Exp $
+.\" $Id: form_field_buffer.3x,v 1.24 2019/11/30 21:02:22 tom Exp $
 .TH form_field_buffer 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
-\fBform_field_buffer\fR - field buffer control
+\fBform_field_buffer\fR \- field buffer control
 .SH SYNOPSIS
 \fB#include <form.h>\fR
-.br
+.sp
 int set_field_buffer(FIELD *field, int buf, const char *value);
 .br
 char *field_buffer(const FIELD *field, int buffer);
@@ -48,11 +56,9 @@ int set_max_field(FIELD *field, int max);
 The function \fBset_field_buffer\fR sets the numbered buffer of the given field
 to contain a given string:
 .RS 3
-.TP 3
--
+.bP
 Buffer 0 is the displayed value of the field.
-.TP 3
--
+.bP
 Other numbered buffers may be allocated by applications through the \fBnbuf\fR
 argument of (see \fBform_field_new\fR(3X))
 but are not manipulated by the forms library.
@@ -61,35 +67,31 @@ but are not manipulated by the forms library.
 The function \fBfield_buffer\fR returns a pointer to
 the contents of the given numbered buffer:
 .RS 3
-.TP 3
--
+.bP
 The buffer contents always have the same length,
 and are padded with trailing spaces
 as needed to ensure this length is the same.
-.TP 3
--
+.bP
 The buffer may contain leading spaces, depending on how it was set.
-.TP 3
--
+.bP
 The buffer contents are set with \fBset_field_buffer\fP,
 or as a side effect of any editing operations on the corresponding field.
-.TP 3
--
+.bP
 Editing operations are based on the \fIwindow\fP which displays the field,
 rather than a \fIstring\fP.
 The window contains only printable characters, and is filled with blanks.
 If you want the raw data, you must write your
 own routine that copies the value out of the buffer and removes the leading
 and trailing spaces.
-.TP 3
--
+.bP
 Because editing operations change the content of the buffer to
 correspond to the window, you should not rely on using buffers
 for long-term storage of form data.
 .RE
 .PP
 The function \fBset_field_status\fR sets the associated status flag of
-\fIfield\fR; \fBfield_status\fR gets the current value.  The status flag
+\fIfield\fR; \fBfield_status\fR gets the current value.
+The status flag
 is set to a nonzero value whenever the field changes.
 .PP
 The function \fBset_max_field\fR sets the maximum size for a dynamic field.
@@ -112,31 +114,30 @@ The remaining routines return one of the following:
 The routine succeeded.
 .TP 5
 .B E_SYSTEM_ERROR
-System error occurred (see \fBerrno\fR).
+System error occurred (see \fBerrno\fR(3)).
 .TP 5
 .B E_BAD_ARGUMENT
 Routine detected an incorrect or out-of-range argument.
 .SH SEE ALSO
-\fBcurses\fR(3X) and related pages whose names begin "form_" for detailed
+\fBcurses\fR(3X) and related pages whose names begin \*(``form_\*('' for detailed
 descriptions of the entry points.
 .SH NOTES
 The header file \fB<form.h>\fR automatically includes the header file
 .PP
-When configured for wide-characters, \fBfield_buffer\fP returns a pointer
+When configured for wide characters, \fBfield_buffer\fP returns a pointer
 to temporary storage (allocated and freed by the library).
 The application should not attempt to modify the data.
 It will be freed on the next call to \fBfield_buffer\fP to return the
 same buffer.
 \fB<curses.h>\fR.
 .SH PORTABILITY
-These routines emulate the System V forms library.  They were not supported on
+These routines emulate the System V forms library.
+They were not supported on
 Version 7 or BSD versions.
+.PP
+The \fBset_max_field\fP function checks for an ncurses extension
+\fBO_INPUT_FIELD\fP which allows a dynamic field to shrink if the new
+limit is smaller than the current field size.
 .SH AUTHORS
-Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric
-S. Raymond.
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
+Juergen Pfeifer.
+Manual pages and adaptation for new curses by Eric S. Raymond.