OP_BEGIN_POSITION 1397 ext/mbstring/oniguruma/regcomp.c   case ANCHOR_BEGIN_POSITION: r = add_opcode(reg, OP_BEGIN_POSITION); break;
OP_BEGIN_POSITION 5484 ext/mbstring/oniguruma/regcomp.c   { OP_BEGIN_POSITION,      "begin-position",  ARG_NON },
OP_BEGIN_POSITION 2235 ext/mbstring/oniguruma/regexec.c     case OP_BEGIN_POSITION:  STAT_OP_IN(OP_BEGIN_POSITION);