Mercator 6.7 - component rule design - using input from control file

[jamessong]

hi,
In the type tree, I want to use lookup function to match $ with list of options from a control file.

The type design of that control file is in the same type tree. So the question is, how can I specify the component rule to do something like "ABSENT(LOOKUP(Filed1, $=Field1:ControlFile))"?

I know that this is doable in the map rule but I can't figure out how to do it in the type tree component rule.

Any help will be appreciated.

Cheers

 

[BocaBurger]

Might not be possible, how do you read a control file into a tree? You might be able to use an include list in the tree or exclude list.



BocaBurger
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The pen is mightier than the sword, but the sword hurts more!

 

[jamessong]

Hi, BocaBurger,
The trouble is that if I use include list, I have to do regression test whenever the control list is modified.

I try to save the regression test by using a control file. But this really increase the complexity in the map design. So I fight back to try using the control file in the type tree design...

My goal is not use constant values in type tree, because this will increase maintainence cost. but I also want to simplify the map design.

Any late-bound technology in Mercator?

Cheers

 

[BocaBurger]

Again, how do you read a file into a tree, that needs to be compiled into a map. Map rule seems to be the way to go.



BocaBurger
<===========================||////////////////|0
The pen is mightier than the sword, but the sword hurts more!

 

[jamessong]

Hi, BocaBurger,
That's why I came for help.
I don't know whether it's possible or not, but on the help fiel and tutorial pdfs, I get no idea how to read file into type design.

cheers