STK_POS_NOT       563 ext/mbstring/oniguruma/regexec.c #define STACK_PUSH_POS_NOT(pat,s,sprev) STACK_PUSH(STK_POS_NOT,pat,s,sprev)
STK_POS_NOT       740 ext/mbstring/oniguruma/regexec.c     if (stk->type == STK_POS_NOT) break;\