public void run() { int m = rule.getLength(); List<Integer> bmBc = preBMBC.get(rule); int j; byte c, firstCh, secondCh, middleCh, lastCh; int secondCharacterLocation = m == 1 ? 0 : 1; firstCh = rule.getByte(0); secondCh = rule.getByte(secondCharacterLocation); middleCh = rule.getByte(m / 2); lastCh = rule.getByte(m - 1); j = 0; while (j <= n - m) { c = input.getByte(j + m - 1); if (c == lastCh && middleCh == input.getByte(j + m / 2) && firstCh == input.getByte(j)) { if (memcmp(rule, input, secondCharacterLocation, j + 1, m - 2)) { result.addLocation(j); } } j += bmBc.get(c & 0xFF); } }
public void run() { int i, j, k, s, shift; List<Integer> bmBc = preBmBc.get(rule); List<Integer> bmGs = preBmGs.get(rule); List<Integer> suff = suffixes.get(rule); List<Integer> skip = preSkip.get(rule); int m = rule.getLength(); j = 0; while (j <= n - m) { i = m - 1; while (i >= 0) { k = skip.get(i); s = suff.get(i); if (k > 0) { if (k > s) { if (i + 1 == s) { i = -1; } else { i -= s; } break; } else { i -= k; if (k < s) { break; } } } else { if (rule.getByte(i).equals(input.getByte(i + j))) { --i; } else { break; } } } if (i < 0) { result.addLocation(j); skip.set(m - 1, m); shift = bmGs.get(0); } else { skip.set(m - 1, m - 1 - i); shift = Math.max(bmGs.get(i), bmBc.get((input.getByte(i + j)) & 0xFF) - m + 1 + i); } j += shift; memcpy(skip, shift, m - shift); memset(skip, m - shift, skip.size(), 0); } }