T24 User Guide - Page 10

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T24 Application Development

Field Length

The 'N' array is a dimensioned array that defines the maximum and minimum length of each field.

The corresponding variable for the record id is ID.N. The element is assigned with three sub-fields

separated by a “.”:

Sub-field 1

This parameter defines the maximum length that will be allowed on input for the field or for each multi-

value or sub-value if applicable, e.g.

N(Z)=“35” This field can have a maximum of 35 characters

If the number is prefixed by 0 (e.g. 035) then leading zeroes will not be removed. If it is prefixed by a

leading space then spaces will not be trimmed; if it is not prefixed by a leading space, all leading,

trailing and multiple spaces removed.

Sub-field 2

This parameter defines the minimum length that will be allowed on input for the field or for each multi-

value or sub-value if applicable. Null, space or zero defines that the field is optional. If the field is

mandatory, this should be set to a value of 1 (as some languages assign significant meaning to one

character, and putting an arbitrary length is pointless)

Sub-field 3

Although this field is no longer used, the definition is included here for completeness. Older versions of

the template defined a CHECK.FIELDS extension to do field level validation. However, with the move

to a stateless architecture, this feature is irrelevant. Where this parameter is set to 'C' special editing

as coded in the CHECK.FIELDS routine will be performed.

Examples:

'10' Up to 10 characters allowed, no special editing will be done. Optional.

'10.1' Between 1 and 10 characters allowed, no special editing will be done.

'006.6.C' Input must be 6 characters. Leading zeros will not be removed and the field will be

subject to processing by the CHECK.FIELDS routine.

‘35..C' Up to 35 characters of input will be accepted, leading spaces, trailing spaces and

duplicated embedded spaces will be removed. For example, the keyed input 'LLOYDS

BANK PLC' will be edited to 'LLOYDS BANK PLC.' Null will be accepted and the

input will be subject to FIELD.CHECKS.

TEMENOS T24 User Guide Page 10 of 34

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