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Load a SKILL function using an ENV variable

Michael Kolesnik over 4 years ago

I would like to load SKILL functions by using a shell ENV variable instead of a hard path.

Setting the skill path is not a solution.

In the shell I set the ENV:

setenv MDTOOLS "/home/MDTools"

trying to load this fails in the CIW:

load("$MDTOOLS/MDT_MarkCoordinate.il")
*Error* load: can't access file - "$MDTOOLS/MDT_MarkCoordinate.il"

checking I can see the path is correct:

getShellEnvVar("MDTOOLS")
"/home/MDTools"

What am I missing?

Parents

skillUser over 4 years ago
Hi Michael,

Depending on the version of Virtuoso it may not expand Unix env vars for you (only the most recent versions do this I believe, IC6.1.8 and ICADVM20.1), so it is best to do that yourself, in other words:

loadi(strcat(getShellEnvVar("MDTOOLS") "/MDT_MarkCoordinate.il"))

Best regards,

Lawrence.
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Andrew Beckett over 4 years ago in reply to skillUser

Laurence,

As far as I know (and from experimenting too), environment variables are not expanded in IC6.1.8/ICADVM20.1 either (by load/loadi).

There is my article: SKILL: How can I expand environment variable references in a string?

load(CCSexpandEnvVars("$MDTOOLS/MDT_MarkCoordinate.il"))

but you can also use the built-in simplifyFilename:

load(simplifyFilename("$MDTOOLS/MDT_MarkCoordinate.il"))

That works from IC6.1.7 onwards (I tried some earlier versions, and it changed during an IC616 hotfix but I didn't bother trying to track down which ISR it changed in).

Andrew
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skillUser over 4 years ago in reply to Andrew Beckett

Yes, I must have been thinking of the simplifyFilename() function - older versions wouldn't expand Unix Env Vars, but the more recent versions of Virtuoso do now, thank you :-)
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skillUser over 4 years ago in reply to Andrew Beckett

Yes, I must have been thinking of the simplifyFilename() function - older versions wouldn't expand Unix Env Vars, but the more recent versions of Virtuoso do now, thank you :-)
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Andrew Beckett over 4 years ago in reply to skillUser

Lawrence - I was thinking "Cool, we've implemented that, maybe I just missed it" - so was slightly disappointed to find that we hadn't after all ;-)

Andrew
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Michael Kolesnik over 4 years ago in reply to Andrew Beckett

They both work perfectly.

Thanks, both of you for the very quick response!

I have another question on Fill pattern implementation but I will start a new request on that...
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