regsub question

[Shu Chen]

hi clovertech:

is it possible use regsub to replace “~~” or “~~~” into “~” in TCL since “~” is encoding char in hl7 message

regsub -ALL {~~|~~~} $IN {~} OUT?

I am not sure the sytax is correct or not.

thanks for your help

best

Topic

[Brandon Grudt]

I may not understand the nuances here, but on it’s face, that seems like something I would use “string map” for.  I’ve used string map on HL7 characters before, without issue.  Without testing it, I think the command would be:

set out [string map { ~~ ~ ~~~ ~ } $in]

[Charlie Bursell]

It is not something you would do in Xlate but perhaps a route pre-proc

If there are always 2 or three the string map as recommended by Brandon would be your best bet.  However if you want to collapse any number of ~ into one you would do something like:  (Assumes msg holds HL7 message)

    regsub -all — {~+} $msg {~} msg

The plus sign above says look for one or more

[Jim Kosloskey]

If you are using an Xlate you may be able to  accomplish what you want by using a field ITERATE.

I would need to have more information though.

email: jim.kosloskey@jim-kosloskey.com 29+ years Cloverleaf, 59 years IT - old fart.

[Shu Chen]

thanks guys. works great!!!!

hi Jim, I figured it out this one. thanks for you help.

[Author]

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