Module 3: ISPF Edit

ISPF- ISPF Editor

The ISPF editor (option 2) is where you write and change programs, JCL and data. You edit a member of a partitioned dataset or a whole sequential dataset. Changes are kept in memory until you save, so the editor is forgiving while you work.

Opening a member for edit

Type 2 on the primary option menu. Fill in the dataset name (Project/Group/Type/Member or the full quoted name) and press Enter. If the member does not exist, ISPF creates an empty one.

------------------------------- Edit Entry Panel ----------------------------- Command ===> ISPF Library: Project . . . USER01 Group . . . . PAYROLL (second group, third, fourth optional) Type . . . . COBOL Member . . . TAXCALC (* for member list, blank for selection list) Other Partitioned, Sequential or VSAM Data Set: Data Set Name . . . Volume Serial . . .

Use * in the Member field to pick from a member list.
View (option 1) looks identical but never saves changes. Browse is read-only too. Use Edit when you intend to change things.

Line commands

Line commands are typed over the 6-digit line numbers on the left, then you press Enter. They act on one line, or on a block when you add a number (D3 deletes 3 lines).

000100 MOVE 100 TO TOTAL. D00100 MOVE 100 TO TOTAL. <-- D deletes this line 000300 ADD TAX TO TOTAL. I000300 ADD TAX TO TOTAL. <-- I opens blank lines after this line 000400 DISPLAY TOTAL. R200400 DISPLAY TOTAL. <-- R2 repeats this line twice

I - Insert. Opens new blank lines after the line. In opens n lines.
D - Delete. Dn deletes n lines. DD on two lines deletes the whole block between them.
R - Repeat. Copies the line below itself. Rn repeats n times.
C - Copy. Mark source lines with C (or CC block), then mark the target with A (after) or B (before).
M - Move. Same as copy, but the source lines are deleted after the move.
O - Overlay. Overlays a copied block onto a target block column by column (blanks in the source do not overwrite).
X - Exclude. Hides lines from the display. S shows them again; RESET shows everything.
A block example: type CC on the first and last line of the block, A on the target line, press Enter.

Primary commands

Primary commands are typed on the Command ===> line at the top of the edit panel.

Command ===> F 'MOVE 100' find the next occurrence of MOVE 100 Command ===> C 'MOVE 100' 'MOVE 200' ALL change all occurrences Command ===> C 'TAX' 'FEE' 1 5 ALL change TAX to FEE on lines 1-5 only Command ===> SAVE save without leaving the editor Command ===> CANCEL leave without saving anything Command ===> RENUM renumber all lines in steps of 100 Command ===> UNDO undo the last change Command ===> COLS show the column ruler Command ===> HEX ON show the data in hexadecimal

FIND (F) searches forward. PF5 (Rfind) repeats the last find. Add PREV to search backward, ALL to list every hit.
CHANGE (C) replaces text. Always run with ALL only when you mean it; otherwise change one occurrence at a time and confirm with Rchange (PF6).
SAVE writes your changes. PF3 (End) saves and leaves. CANCEL leaves without saving.
CAPS ON/OFF controls whether typed lowercase is converted to uppercase. Keep CAPS ON for COBOL and JCL.
NUMBER ON/OFF controls the sequence numbers in columns 73-80. Turn NUMBER OFF when editing data that must not have sequence numbers.
BOUNDS limits FIND/CHANGE to certain columns, useful for changing only the sequence-number area or only columns 8-72.

A real editing session

Fix a typo in a COBOL program: change every 'CUSTMOER' to 'CUSTOMER', save, and leave.

Command ===> C 'CUSTMOER' 'CUSTOMER' ALL *** 14 occurrences changed, message in top right confirms the count Command ===> SAVE *** Member TAXCALC saved (Press PF3 to end - changes are already saved, so End just leaves)

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