www.LinuxHowtos.org
form_variables
Section: Miscellaneous Library Functions (3X)Updated:
Index Return to Main Contents
NAME
TYPE_ALNUM, TYPE_ALPHA, TYPE_ENUM, TYPE_INTEGER, TYPE_IPV4, TYPE_NUMERIC, TYPE_REGEXP - form system global variablesSYNOPSIS
#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 set_fieldtype(3X). 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).