Resolving Bison Shift-Reduce Conflicts for If-Else Statements with Virtual Token Priority
selection_statement
: IF_P LPAREN expr RPAREN stmt_e ELSE_P stmt_e
| IF_P LPAREN expr RPAREN stmt_e %prec LOW_PRI
| SWITCH_P LPAREN expr RPAREN stmt_e
;
Bison may flag a shift/reduce conflict on token ELSE_P when parsing nested if-else structures like if (...) if (...) stmt • ELSE stmt. The parser cannot decide whether to shift ...
Posted on Sat, 08 Aug 2026 16:27:17 +0000 by sintax63