Variable substitution in Job Control ?

[dcoueron]

Is there any way to substitute a variable name with its value in a job control ? (Some kind of eval function)

Example :
varA = "test"
varB = "varA"
I need to get varC = "test" by calling something like varC = eval(varB)

[arvind_ds]

Write the value of the first variable into a file and then read it using the second variable.

[ArndW]

That functionality doesn't exist in BASIC, one can use "LIT" for constants, but those are evaluated at compile-time and not run-time.

You can work around the problem by using an array or dynamic array.

e.g.

Code: Select all

   Variables = ''
   Variables<1> = "test"
   Variables<2> = "1"
   NewValue = Variables<Variables<2>>

or

Code: Select all

   DIM Variables(10)

   MAT Variables = ''
   Variables(1) = "test"
   Variables(2) = "1"
   NewValue = Variables(Variables(2))

[chulett]

If by "job control" you mean in some hand-coded BASIC, you can just do the assignment without any "eval" needed: varC = varB, for example. If that's not working for you, we would need more details as to why not.

[ArndW]

Craig - he means take the value of a variable as a variable name and assign that variable's value; sort of a like a variable being a pointer to the value of another.

[chulett]

Ah... sorry, more of an indirect method, it seems. Should have looked more closer at the example.

[ArndW]

If it is any consolation, my initial answer was identical to yours, but I managed to edit it quickly...

[chulett]

It's not, but... thanks!

[urpandu]

Is there any way to substitute a variable name with its value in a job control ? (Some kind of eval function)

Example :
varA = "test"
varB = "varA"
I need to get varC = "test" by calling something like varC = eval(varB)

I think,, u need to write routines

[dcoueron]

Many thanks to every one.
I used arvind_ds's solution and it works well.

Sorry for the lack of precision !