O_BACK 169 ext/ereg/regex/debug.c case O_BACK: O_BACK 288 ext/ereg/regex/engine.c case O_BACK: O_BACK 538 ext/ereg/regex/engine.c while (m->g->strip[ss] != SOP(O_BACK, i)) O_BACK 865 ext/ereg/regex/engine.c case O_BACK: O_BACK 512 ext/ereg/regex/regcomp.c EMIT(O_BACK, i);