I’d like to have some flexibility of an input as shown in the screen shot. However, it seems I just could not put brackets inside braces.
Do I have any misunderstanding about the definition of brackets and/or braces, or is it just such nesting is not allowed?
Many thanks.
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Just that I should have put parens around the phrase inside the braces…
(Sorry that I don’t know how to cancel a post once submitted.)