This question already has an answer here:

The title says it quite straight, what I am looking for is the following:

while *this* is bold, `that` should appear in a custom format

Edit: This question is no duplicate of that although the answer is hidden there in a comment. As I think it is worth to be found, I repeat it here:

It is impossible to use self-defined delimiter symbols.

marked as duplicate by Andrew Swann, Scott Weldon, Tyler, erikstokes, Drew Apr 5 '16 at 22:55

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  • This related question may help. – Juancho Apr 5 '16 at 19:47

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