| 14 | |
| 15 | namespace { |
| 16 | int parseIndex(const std::string& xpath, const char* prefix, bool last = false) { |
| 17 | const size_t prefixLen = strlen(prefix); |
| 18 | const size_t pos = last ? xpath.rfind(prefix) : xpath.find(prefix); |
| 19 | if (pos == std::string::npos) return -1; |
| 20 | const size_t numStart = pos + prefixLen; |
| 21 | const size_t numEnd = xpath.find(']', numStart); |
| 22 | if (numEnd == std::string::npos || numEnd == numStart) return -1; |
| 23 | int val = 0; |
| 24 | for (size_t i = numStart; i < numEnd; i++) { |
| 25 | if (xpath[i] < '0' || xpath[i] > '9') return -1; |
| 26 | val = val * 10 + (xpath[i] - '0'); |
| 27 | } |
| 28 | return val; |
| 29 | } |
| 30 | |
| 31 | int parseCharOffset(const std::string& xpath) { |
| 32 | const size_t textPos = xpath.rfind("text()"); |