[Help-bash] What is the limit for number of nested parameter expansions?

[Michael Green]

Hello,

please take a look at the following expression: printf '%s\n' 
"${var%?"${var#"${var%?}"}"}", which consists of 3 nested expansions. I 
was wondering what the maximum number of nested expansions is, where is 
it defined and what it depends on? On my system I am getting segfaults 
at around 9000 expansions.

Thank you very much for your time,

Michal G.