🚀 go-pugleaf

The situation is this:
I've got a text, wich I assign to a text frame with the following command:

...texts[0].contents = "I want this next word in bold blurf bla";

my question how can I set, for instance, the 'appliedCharacterStyle' property only for the word 'blurf'.

I can create an InDesign tagged text file that gives me the required result. But since this type of action is going to be done within a loop that often loops 1000+ times and the creating of the file needs a 2 second delay.

I also know how to determine these differences within a text by checking the textStyleRanges, but I cant find a way to create these ranges myself.

What I'm hoping for is a method to parse the tagged text directly into a textframe, instead of placing it from a file.

Can anyone please tell me how to do this, or point me in the right direction.

Erik Bruinsma