Lines Matching refs:BACK
106 #define BACK 7 /* no Match "", "next" ptr points backward. */
126 * BACK Normal "next" pointers all implicitly point forward; BACK
130 * BRANCH structures using BACK. Simple cases (one character
469 regoptail(ret, regnode(BACK,rcstate)); /* and loop */
479 regtail(regnode(BACK,rcstate), ret); /* loop back */
710 if (OP(scan) == BACK)
938 case BACK:
1129 if (OP(p) == BACK)
1219 case BACK:
1220 p = "BACK";