jramak
13th August 2009 03:04 UTC

Use of Name Installer attribute with a variable
I'm a newbie, a little bit confused with the usage of variables with the Name Installer attribute.

Below is the code. Also a bit confused if the usage of variable with the Math plugin is the right and recommended way.

Please let me know what I might be doing wrong. Thank you.

-Jramak

----------------------------------------------------------

Var floatWeight

!define WEIGHT_INCREMENT 3

; Item weight read from file.py is 2
!searchparse /file "C:\file.py" `__text__ = \
int("$Itemweight:`ITEM_WEIGHT `$"[11:-2])`

Section "Pre-processing Operations" SEC01
Math::Script "$floatWeight = ${WEIGHT_INCREMENT} + ${ITEM_WEIGHT} / 100.00"
SectionEnd
;Name to be assigned "Weight 3.02"
Name "Weight ${floatWeight}"
----------------------------------------------------------

jramak
13th August 2009 20:11 UTC

OK, so I figured this out. Posting the answer so it can help others.

In general, it is a bit confusing to as whether to use '{}' for variables or omit them or use '()'.
------------------------------------------------------------

Var floatWeight
!define WEIGHT_INCREMENT 3

; Item weight read from file.py is 2
!searchparse /file "C:\file.py" `__text__ = \
int("$Itemweight:`ITEM_WEIGHT `$"[11:-2])`

Function .onInit
Math::Script "r1 = ${WEIGHT_INCREMENT} + ${ITEM_WEIGHT} / 100.00"
StrCpy $floatWeight $1
FunctionEnd

;Name to be assigned "Weight 3.02"
Name "Weight $floatWeight"
------------------------------------------------------------

Anders
14th August 2009 19:01 UTC

How confusing can it be?

${define}
$(langstring)
$var

(defines are set at compile time, the others at runtime)