CLIST calls REXX/ISPF - Variable definition

biswadeepghosh · New User Joined: 03 Jan 2008 Posts: 14 Location: Pune

I'm changing a CLIST program which calls ISPF panels to get data and then calls a REXX program passing the same data which is processed and displayed.

Whilst calling the REXX pgm i pass the variables like

PGM1 &VAR1 &VAR2 &VAR3.

Var1/var2/Var3 are populated in the ISPF panel called before PGM1 is called.

Now the problem i'm facing is if VAR2 is not populated, the Pgm1 picks up the data of Var 3 as of VAr 2 in the REXX pgm .

Can someone suggest ?

Can i assign default values to Variable taken as input from the ISPF screen ? if yes how ?

expat · Posted: Tue Mar 11, 2008 5:13 pm

VPUT VGET

akhi007 · New User Joined: 30 Jan 2006 Posts: 35 Location: Richmond

Hi,

Verify whether values is getting populated into VAR1 VAR2 and VAR3 variables. Suppose if the value of VAR2 is spaces from the panel, then rexx will replace the value of VAR2 by VAR3.

For e.g, You are passing the following values,

VAR1 = "ABC"
VAR2 = ""
VAR3 = 123

CALL PGM &VAR1 &VAR2 &VAR3

PGM:

/*rexx */
parse arg v1 v2 v3

Say v1
Say v2
Say v3

here, result will be as follows

ABC
123
...

Inorder to avoid this, put a check for spaces before calling the rexx routine. If it is spaces, then pass some dummy value. This will solve the problem.

biswadeepghosh · New User Joined: 03 Jan 2008 Posts: 14 Location: Pune

oops ! sorry but how to check for spaces in CLIST

... i'm really weak in tat .

expat · Posted: Wed Mar 12, 2008 5:10 pm

That is the reason I suggested using VPUT / VGET. The variables keep the values assigned in the panel, so no need to worry if one or more are blank.

biswadeepghosh · New User Joined: 03 Jan 2008 Posts: 14 Location: Pune

Sorry not getting it

In the CLIST i am defining

ISPEXEC VGET (BG11,BG12,BG13,BG14,BG15)

The feilds which need to be populated in the ISPF panel

BG11 BG12 BG13 BG14 BG15 ( anyone could be blank)

Now whilst calling the REXX pgm these variables dont seem to have any data.

expat · Posted: Thu Mar 13, 2008 12:47 pm

No, they wouldn't have any value until you VPUT them first.

The variables in the CLIST which displays the panel are populated with whatever is entered into the panel, so VPUT them (usually use PROFILE) and in the REXX VGET them.

biswadeepghosh · New User Joined: 03 Jan 2008 Posts: 14 Location: Pune

Thanks a lot .... it worked !

HappySrinu · Active User Joined: 22 Jan 2008 Posts: 194 Location: India

may be delay reply. but instead of checking values in rexx/clist why can't you check in panel definition code it self.

biswadeepghosh · New User Joined: 03 Jan 2008 Posts: 14 Location: Pune

are you saying to pass a default value if the feild is left blank ?.. im not sure of VER has this option ?

expat · Posted: Tue Mar 18, 2008 5:29 pm