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9.3 Diversion numbers

The builtin divnum:

 
divnum

expands to the number of the current diversion.

 
Initial divnum
=>Initial 0
divert(1)
Diversion one: divnum
divert(2)
Diversion two: divnum
divert
=>
^D
=>
=>Diversion one: 1
=>
=>Diversion two: 2

The last call of divert without argument is necessary, since the undiverted text would otherwise be diverted itself.


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