Help on using RegEx to create placeholder tags for the Xliff file type in Studio 2017

Question

I have a client who's got some xliffs that they made themselves. Structurally they're fine, but for ease of translation I wanted to have certain content come in as placeholder tags. 
 I've attempted to set up rules for this using RegEx, but it's not working. I tested the RegEx itself with an online tool, and it appears to be sound, so chances are I'm putting the wrong things in the wrong place, using a different RegEx library, or just generally being a massive dolt. But I don't know which. 
 I'm attaching a screenshot which shows how I set the xliff up, and examples of a couple of the bits in the editor that I was hoping to capture but without success. 
 
 Any clues gratefully received.

Richard Davis · Answer

Disregard this. I am indeed a dolt. I set the rules up under File -> Options -> File Types. Apparently, unlike chnages made to other file types under File-> Options, these do not roll out to newly created projects (by design??) and have to be set in the Project settings for the project in question.

Unless a mod would prefer it deleted, I'll leave this here in case someone bumps into the same thing in the future.

Paul Filkin · Answer

Hi Richard Davis 
 
I would have to dispute this comment. Adding the changes to the XLIFF filetype in File -> Options absolutely does mean the changes will be used in future projects for your default project template. Perhaps your problem is that you are not using the default project template when you create your projects?

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Help on using RegEx to create placeholder tags for the Xliff file type in Studio 2017