Which function in LL(1) parsing computes the set of terminal symbols that can appear immediately to the right of non-terminal A in some sentential form?
FOLLOW(A) is defined for a non-terminal A as the set of terminals that can appear immediately following A in any sentential form derived from the start symbol.
Which special symbol is always included in the FOLLOW set of the Start Symbol S of a grammar?
The input end-marker '$' is always added as an initial member to FOLLOW(S), where S is the start symbol.
In constructing an LL(1) parsing table M[A, a], if a production A -> \alpha contains \epsilon in FIRST($\alpha)$, which entries are updated?
When FIRST($\alpha) contains \epsilon$, the parser uses production A -> \alpha for lookahead symbols b present in FOLLOW(A).
Which error recovery strategy in Syntax Analysis discards input tokens one by one until a designated 'synchronizing token' (e.g., semicolon or brace) is encountered?
Panic mode recovery discards input characters until a synchronizing token is found, clearing the stack to resume parsing cleanly.
Which error recovery strategy performs local corrections on remaining input (e.g., replacing comma with semicolon, or inserting a missing parenthetic token)?
Phrase-level error recovery fills or replaces remaining input tokens locally to allow the parser to continue past syntactic mistakes.