GAMS World Forum

Posted: **Thu Apr 30, 2020 12:55 pm**

Dear,

I have a question concerning $macro statement, where I want to use '$call' option. For example:

$macro create(VARnam) $call gdxdump %Filaname%.gdx output=%Path%&VARnam.csv symb=&VARnam %SpecKey%
create(xaf_mat)

Everything seems wokring except the

Code: Select all

$call

option. I was trying to find, how the problem with dollar sign should be treated in macro statement, but I couldn't find it.
Do you have any hint to help me.

The macro I am presentating here is creating csv files. I have to create over 200 such files.

Best
Irena

Posted: **Fri May 01, 2020 7:08 am**

Macros are expanded by the GAMS compiler. The expanded text is not scanned for compile time commands (anything that starts with a $, like $call) by the compiler, so you can't have a $ command inside a macro. You will need to use a batinclude for this:

Code: Select all

$set Filaname xxx
$set Path  abc/
$set SpecKey
$escape &
$echo $call gdxdump %Filaname%.gdx output=%Path%%&1.csv symb=%&1 %SpecKey% > create.gms
$escape %
* Now use it
$batinclude create xaf_mat

-Michael

Posted: **Sat May 02, 2020 9:14 am**

Dear;
Yes you can use $ instead of $call

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