iTS 1.0+)

Procedure Division

Compaq NonStop™ Pathway/iTS SCREEN COBOL Reference Manual—426750-001

6-4

Procedures

The following examples illustrate imperative sentences:

ADD a1 TO b1 GIVING c1, d1, e1.

ADD 25 TO x2,

GO TO next-image.

A conditional sentence tests a conditional item or some relationship between values to

determine an action to take.

The following example illustrates a conditional sentence:

IF last-tax IS LESS THAN current-tax

PERFORM higher-tax

ELSE PERFORM lower-tax.

Procedures

A procedure consists of a paragraph, a group of successive paragraphs, a section, or a

group of successive sections. A procedure name is a paragraph or section name; the

name can be qualified.

Procedure Division Statements

Procedure Division statements can be grouped into ten categories. Table 6-1 lists each

statement and its category.

The following statements cannot be used in IDS requester programs:

ACCEPT DISPLAY TURN

CLEAR PRINT SCREEN USE FOR SCREEN RECOVERY

DISPLAY BASE RESET USE FOR TERMINAL-ERRORS

DISPLAY OVERLAY SCROLL

DISPLAY RECOVERY SET

All of the SCREEN COBOL statements are described in alphabetic order in the

remainder of this section.

Note. Intelligent Device Support (IDS) SCREEN COBOL requester programs interact with

external (that is, outside of Pathway) processes which, in turn, control intelligent devices such

as automated teller machines, airline reservation terminals, and personal computers. These

requester programs are message-oriented. IDS requester programs use the SEND

MESSAGE statement and its REPLY to send and receive messages.