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Update ncurses and associated libraries (form, panel, menu) to
6.4-20230826 (from 5.7-20081102).

Based on result from Thomas Dickey's ncu2openbsd script and then
modified. Switches to the upstream tput. Major bump for the ncurses
libraries and for libedit and libreadline.

Help from tb, millert.

ok deraadt sthen

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.\" $Id: form_variables.3,v 1.1 2023/10/17 09:52:10 nicm Exp $
.TH form_variables 3 2021-12-25 "ncurses 6.4" "Library calls"
.na
.hy 0
.SH NAME
\fBTYPE_ALNUM\fP,
\fBTYPE_ALPHA\fP,
\fBTYPE_ENUM\fP,
\fBTYPE_INTEGER\fP,
\fBTYPE_IPV4\fP,
\fBTYPE_NUMERIC\fP,
\fBTYPE_REGEXP\fP
\- form system global variables
.ad
.hy
.SH SYNOPSIS
.nf
\fB#include <form.h>\fP
.PP
\fBFIELDTYPE * TYPE_ALNUM;\fP
\fBFIELDTYPE * TYPE_ALPHA;\fP
\fBFIELDTYPE * TYPE_ENUM;\fP
\fBFIELDTYPE * TYPE_INTEGER;\fP
\fBFIELDTYPE * TYPE_IPV4;\fP
\fBFIELDTYPE * TYPE_NUMERIC;\fP
\fBFIELDTYPE * TYPE_REGEXP;\fP
.fi
.SH DESCRIPTION
These are building blocks for the form library,
defining fields that can be created using
the \fBform_fieldtype\fP(3) functions.
Each provides functions for field- and character-validation,
according to the given datatype.
.SS TYPE_ALNUM
This holds alphanumeric data.
.SS TYPE_ALPHA
This holds alphabetic data.
.SS TYPE_ENUM
This holds an enumerated type.
.SS TYPE_INTEGER
This holds a decimal integer.
.SS TYPE_IPV4
This holds an IPv4 internet address, e.g., "127.0.0.1".
.SS TYPE_NUMERIC
This holds a decimal number, with optional sign and decimal point.
.SS TYPE_REGEXP
This holds a regular expression.
.SH PORTABILITY
The \fBTYPE_IPV4\fP variable is an extension not provided by older
implementations of the form library.
.SH SEE ALSO
\fBform\fP(3).