form_field_validation(3X)

NAME

form_field_validation, set_field_type, field_type, field_arg − forms field data type validation

SYNOPSIS

#include <form.h>

int set_field_type(FIELD ∗field, FIELDTYPE ∗type, ...);

FIELDTYPE ∗field_type(FIELD ∗field);

char ∗field_arg(FIELD ∗field);

DESCRIPTION

set_field_type() associates the specified field type with field. Certain field types take additional arguments. TYPE_ALNUM, for instance, requires one, the minimum width specification for the field. The other predefined field types are: TYPE_ALPHA, TYPE_ENUM, TYPE_INTEGER, TYPE_NUMERIC, and TYPE_REGEXP.

field_type() returns a pointer to the field type of field. NULL is returned if no field type is assigned.

field_arg() returns a pointer to the field arguments associated with the field type of field. NULL is returned if no field type is assigned.

RETURN VALUES

field_type() and field_arg() return NULL on error.

set_field_type() returns one of the following:

E_OK−The function returned successfully.
E_SYSTEM_ERROR−System error.

NOTES

The header <form.h> automatically includes the headers <eti.h> and <curses.h>.

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