stack_n           393 ext/mbstring/oniguruma/regexec.c     stk_end    = stk_base + msa->stack_n;\
stack_n           408 ext/mbstring/oniguruma/regexec.c     msa->stack_n = stk_end - stk_base;\
stack_n           743 ext/mbstring/oniguruma/regint.h   int   stack_n;