OurBigBook
Insane arguments always work by abbreviating:
  • the macro name
  • one or more of its positional arguments, which are fixed as either literal or non-literal for a given insane construct
This means that you can add further arguments as usual.
For example, an insane code block with an id can be written as:
a `b c`{id=ef} g
because that is the same as:
a \c[b c]{id=ef} g
which renders as:
a
b c
g
So we see that the b c argument is the very first argument of \c.
Extra arguments must come after the insane opening, e.g. the following does not work:
a {id=ef}`b c` g
This restriction things easy to parse for humans and machines alike.

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