./bin/aat.awk
<<<
Hello world!
>>>
printf "%s", "Hello world!\n"
>>>2
>>>= 0

./bin/aat.awk
<<<
|BEGIN {print "Hello world!"}
>>>
BEGIN {print "Hello world!"}
>>>2
>>>= 0

./bin/aat.awk
<<<
Hello {{name}}!
>>>
printf "%s", "Hello " (name) "!\n"
>>>2
>>>= 0

./bin/aat.awk
<<<
Hello {<name>}!
>>>
printf "%s", "Hello " (<name>) "!\n"
>>>2
>>>= 0

./bin/aat.awk
<<<
Hello {<a<b<c>>>}!
>>>
printf "%s", "Hello " (<a<b<c>>>) "!\n"
>>>2
>>>= 0