detecting HL7 Active Null in xlateInVals

[Anonymous]

I am having trouble determining when xlateInVals is an active null from within a Tcl Pre Proc (COPY statement). When using the test tool, the active null:

– will not echo

– is not found from string equal, string match, regexp, or a simple “==”

I’ve tried representing active null with:

– “”

– “”””

– x22x22

-“”””

– and probably a few more that I’ve forgetten

Even though I can’t see the active null in xlateInVals, the active null is always copied to the destination message. The only thing I haven’t tried is running this through the engine, because I don’t like to use functions that work but can’t be verified with the test tool. Any ideas?

Thank you,

Dave Perry

Topic

[Jim Kosloskey]

This needs to be done in Tcl.

If you would like a proc that does this you can use as is or as an example, email me and I will send it to you.

email: jim.kosloskey@jim-kosloskey.com 30+ years Cloverleaf, 60 years IT – old fart.

[Bob Richardson]

Greetings,

Have you tried testing against the temporary xlate variable @active_null?

Let us know.

[Jim Kosloskey]

The only way this is accomplished is via Tcl checking the Data Type for the value ‘null’.

I have sent an example proc to David which he can use as is or as an example.

If anyone else would like the proc, email me.

email: jim.kosloskey@jim-kosloskey.com 30+ years Cloverleaf, 60 years IT – old fart.

[Author]

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