pos is the after the ending quote
| 75 | |
| 76 | // pos is the after the ending quote |
| 77 | sonic_force_inline int SkipString(const uint8_t *data, size_t &pos, |
| 78 | size_t len) { |
| 79 | const static int kEscaped = 2; |
| 80 | const static int kNormal = 1; |
| 81 | const static int kUnclosed = 0; |
| 82 | uint64_t quote_bits = 0; |
| 83 | uint64_t bs_bits = 0; |
| 84 | int ret = kNormal; |
| 85 | while (pos + VEC_LEN <= len) { |
| 86 | // const simd::simd256<uint8_t> v(data + pos); |
| 87 | uint8x16_t v = vld1q_u8(data + pos); |
| 88 | bs_bits = to_bitmask(vceqq_u8(v, vdupq_n_u8('\\'))); |
| 89 | quote_bits = to_bitmask(vceqq_u8(v, vdupq_n_u8('"'))); |
| 90 | if (((bs_bits - 1) & quote_bits) != 0) { |
| 91 | pos += (TrailingZeroes(quote_bits) >> 2) + 1; |
| 92 | return ret; |
| 93 | } |
| 94 | if (bs_bits) { |
| 95 | ret = kEscaped; |
| 96 | pos += ((TrailingZeroes(bs_bits) >> 2) + 2); |
| 97 | while (pos < len) { |
| 98 | if (data[pos] == '\\') { |
| 99 | pos += 2; |
| 100 | } else { |
| 101 | break; |
| 102 | } |
| 103 | } |
| 104 | } else { |
| 105 | pos += VEC_LEN; |
| 106 | } |
| 107 | } |
| 108 | while (pos < len) { |
| 109 | if (data[pos] == '\\') { |
| 110 | if (pos + 1 >= len) { |
| 111 | return kUnclosed; |
| 112 | } |
| 113 | ret = kEscaped; |
| 114 | pos += 2; |
| 115 | continue; |
| 116 | } |
| 117 | if (data[pos++] == '"') { |
| 118 | return ret; |
| 119 | } |
| 120 | }; |
| 121 | return kUnclosed; |
| 122 | } |
| 123 | |
| 124 | // return true if container is closed. |
| 125 | template <typename T> |
nothing calls this directly
no test coverage detected