Tutorial: Using labels in macro's: Difference between revisions
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|<small>Author: [[{{ns:2}}:Afrow UK|Afrow UK]] ([[{{ns:3}}:Afrow UK|talk]], [[{{ns:-1}}:Contributions/Afrow UK|contrib]])</small> | |||
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== Description == | == Description == | ||
Labels work fine in macro's until you start to insert the macro's more than once in the same Section or Function! | Labels work fine in macro's until you start to insert the macro's more than once in the same Section or Function! | ||
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-Stu | -Stu | ||
Revision as of 03:04, 30 April 2005
| Author: Afrow UK (talk, contrib) |
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
