ncurses (6.4)

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share/
man/
man3/
form_variables.3x
form_variables(3X) form_variables(3X)

NAME
TYPE_ALNUM, TYPE_ALPHA, TYPE_ENUM, TYPE_INTEGER, TYPE_IPV4, TYPE_NUMERIC, TYPE_REGEXP - form system global
variables

SYNOPSIS
#include <form.h>

FIELDTYPE * TYPE_ALNUM;
FIELDTYPE * TYPE_ALPHA;
FIELDTYPE * TYPE_ENUM;
FIELDTYPE * TYPE_INTEGER;
FIELDTYPE * TYPE_IPV4;
FIELDTYPE * TYPE_NUMERIC;
FIELDTYPE * TYPE_REGEXP;

DESCRIPTION
These are building blocks for the form library, defining fields that can be created using the form_fieldtype(3X)
functions. Each provides functions for field- and character-validation, according to the given datatype.

TYPE_ALNUM
This holds alphanumeric data.

TYPE_ALPHA
This holds alphabetic data.

TYPE_ENUM
This holds an enumerated type.

TYPE_INTEGER
This holds a decimal integer.

TYPE_IPV4
This holds an IPv4 internet address, e.g., "127.0.0.1".

TYPE_NUMERIC
This holds a decimal number, with optional sign and decimal point.

TYPE_REGEXP
This holds a regular expression.

PORTABILITY
The TYPE_IPV4 variable is an extension not provided by older implementations of the form library.

SEE ALSO
form(3X).

form_variables(3X)