WindBridges
29th June 2012 17:11 UTC

How to pass empty string as macro parameter?
For example

!macro TestMacro param1 param2
  Push param1
  Push param2
!macroend

!insertmacro TestMacro "" "test"

this code raises an error - Push expects 1 parameters, got 0. It happens because param1 is replaced by nothing, in result we have Push call without any parameters. How do you resolve this problem?

Afrow UK
29th June 2012 17:54 UTC

!macro TestMacro param1 param2
  Push `${param1}`
  Push `${param2}`
!macroend

Use quotes around the values (` is recommended because ' and " are more commonly used within strings).

Stu

WindBridges
29th June 2012 20:06 UTC

Great! Thank you.