Tutorial: Using labels in macro's: Difference between revisions
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Page author: Afrow UK | Page author: [[User:Afrow UK|Afrow UK]] | ||
Revision as of 12:45, 23 April 2005
Description
Labels work fine in macro's until you start to insert the macro's more than once in the same Section or Function!
Solution
The work-around for this problem is quite simple...
## Our macro !macro DoSomething Param !define UniqueID ${__LINE__} StrCmp ${Param} "something" 0 NoSomething_${UniqueID} ... NoSomething_${UniqueID}: !undef UniqueID !macroend
What we do is create a unique identity (${UniqueID}) for each instance of !insertmacro and place this unique identity in each label reference. This ensures that all label groups are unique no matter how many times we use !insertmacro.
We use ${__LINE__} (current line number) for the UniqueID as it will always change between each !define. We have to !undef-ine UniqueID at the end of the macro too, so the next !insertmacro can re-define a new line number to UniqueID.
-Stu
Page author: Afrow UK
