5d08fb1f77
- This also removes $FreeBSD$ from two now unmodifed source files ncurses/tinfo/lib_raw.c and ncurses/tinfo/lib_baudrate.c MFC after: 2 months (after 7.1 and 6.4 are released)
143 lines
5.5 KiB
Plaintext
143 lines
5.5 KiB
Plaintext
'\" t
|
|
.\"***************************************************************************
|
|
.\" Copyright (c) 1998-2006,2008 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 *
|
|
.\" "Software"), to deal in the Software without restriction, including *
|
|
.\" without limitation the rights to use, copy, modify, merge, publish, *
|
|
.\" distribute, distribute with modifications, sublicense, and/or sell *
|
|
.\" copies of the Software, and to permit persons to whom the Software is *
|
|
.\" furnished to do so, subject to the following conditions: *
|
|
.\" *
|
|
.\" The above copyright notice and this permission notice shall be included *
|
|
.\" in all copies or substantial portions of the Software. *
|
|
.\" *
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
|
|
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
|
|
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
|
|
.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
|
|
.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
|
|
.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
|
|
.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
.\" *
|
|
.\" Except as contained in this notice, the name(s) of the above copyright *
|
|
.\" holders shall not be used in advertising or otherwise to promote the *
|
|
.\" sale, use or other dealings in this Software without prior written *
|
|
.\" authorization. *
|
|
.\"***************************************************************************
|
|
.\"
|
|
.\" $Id: form_field_buffer.3x,v 1.15 2008/10/18 18:35:17 tom Exp $
|
|
.TH form_field_buffer 3X ""
|
|
.SH NAME
|
|
\fBform_field_buffer\fR - field buffer control
|
|
.SH SYNOPSIS
|
|
\fB#include <form.h>\fR
|
|
.br
|
|
int set_field_buffer(FIELD *field, int buf, const char *value);
|
|
.br
|
|
char *field_buffer(const FIELD *field, int buffer);
|
|
.br
|
|
int set_field_status(FIELD *field, bool status);
|
|
.br
|
|
bool field_status(const FIELD *field);
|
|
.br
|
|
int set_max_field(FIELD *field, int max);
|
|
.br
|
|
.SH DESCRIPTION
|
|
The function \fBset_field_buffer\fR sets the numbered buffer of the given field
|
|
to contain a given string:
|
|
.RS 3
|
|
.TP 3
|
|
-
|
|
Buffer 0 is the displayed value of the field.
|
|
.TP 3
|
|
-
|
|
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.
|
|
.RE
|
|
.PP
|
|
The function \fBfield_buffer\fR returns a pointer to
|
|
the contents of the given numbered buffer:
|
|
.RS 3
|
|
.TP 3
|
|
-
|
|
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
|
|
-
|
|
The buffer may contain leading spaces, depending on how it was set.
|
|
.TP 3
|
|
-
|
|
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
|
|
-
|
|
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
|
|
-
|
|
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
|
|
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.
|
|
An argument of 0 turns off any maximum size threshold for that field.
|
|
.SH RETURN VALUE
|
|
The \fBfield_buffer\fR function returns NULL on error.
|
|
It sets errno according to their success:
|
|
.TP 5
|
|
.B E_OK
|
|
The routine succeeded.
|
|
.TP 5
|
|
.B E_BAD_ARGUMENT
|
|
Routine detected an incorrect or out-of-range argument.
|
|
.PP
|
|
The \fBfield_status\fR function returns \fBTRUE\fR or \fBFALSE\fR.
|
|
.PP
|
|
The remaining routines return one of the following:
|
|
.TP 5
|
|
.B E_OK
|
|
The routine succeeded.
|
|
.TP 5
|
|
.B E_SYSTEM_ERROR
|
|
System error occurred (see \fBerrno\fR).
|
|
.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
|
|
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
|
|
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
|
|
Version 7 or BSD versions.
|
|
.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:
|