HP 3000 Manuals HP 3000 Manuals
LEVELS OF ADVANCED DESIGN
Advanced forms design can be separated into two levels of processing
specifications:
* Field Edits--use a comprehensive set of editing statements that apply
to a single field. These statements allow you to test a value
entered in a field for length, and to compare the value to a single
value, a range of values, the values in a table or against a pattern,
and to test a check digit in a field. Each of these edits applies to
the field in the Field Menu in which it appears--the editing
statements do not cross field boundaries.
* Advanced Processing--includes statements that control data movement
between fields and across forms, arithmetic calculation and
formatting of data, dynamic alteration of forms sequencing options.
Any of these statements and the edit statements can be combined into
conditional statements so that processing is performed only in
specified circumstances. This type of processing, as in any
programming language, is affected by the order in which the
statements are specified. The order of statement execution can be
defined explicitly through phase statements.
Advanced forms design uses processing specifications that are specified
in the lower nonformatted area of the Field Menu. Although they apply
primarily to particular fields, some specifications apply to the form in
general. The specifications can, if desired, be executed in four phases:
configuration, initialization, field edits, and finish. If used, phases
allow the selection of:
* terminal configuration for local edit terminals and data capture
devices,
* initialization of fields in the form before data is entered in the
fields,
* editing of data in each field after the data is entered, and,
* after all fields are edited, any finish processing of the form.
The application requests execution of each phase with appropriate VPLUS/V
intrinsics, except for configuration, which is a passive phase built into
the presentation of the form. Refer to "Phases" later in this section
for more information.
If you have collected data in a batch file, you may also use the
Reformatting Capability (described in Section 5) to reformat the data in
the batch file for subsequent use by an application.