form_variables(3X) Library calls form_variables(3X)

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

#include <form.h>
FIELDTYPE * TYPE_ALNUM;
FIELDTYPE * TYPE_ALPHA;
FIELDTYPE * TYPE_ENUM;
FIELDTYPE * TYPE_INTEGER;
FIELDTYPE * TYPE_IPV4;
FIELDTYPE * TYPE_NUMERIC;
FIELDTYPE * TYPE_REGEXP;

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.

This holds alphanumeric data.

This holds alphabetic data.

This holds an enumerated type.

This holds a decimal integer.

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

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

This holds a regular expression.

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

form(3X)

2024-03-16 ncurses 6.5