= Tree stack automaton
{wiki=Tree_stack_automaton}
A Tree Stack Automaton (TSA) is a theoretical model of computation that extends the concept of a pushdown automaton (PDA) to handle tree structures instead of linear strings. While traditional pushdown automata utilize a stack to manage their computational state and can recognize context-free languages, tree stack automata are designed to process and recognize tree-structured data, such as those found in XML documents or abstract syntax trees in programming languages.
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