| 1 | #include <string> |
| 2 | |
| 3 | std::string trim(const std::string& input) |
| 4 | { |
| 5 | if(input.length() == 0) { |
| 6 | return ""; |
| 7 | } |
| 8 | |
| 9 | std::string final = input; |
| 10 | |
| 11 | int i = 0; |
| 12 | while(i < (int)input.length() && input[i] <= ' ') { |
| 13 | i++; |
| 14 | } |
| 15 | |
| 16 | if(i >= (int)input.length()) { |
| 17 | return ""; |
| 18 | } |
| 19 | |
| 20 | if(i > 0) { |
| 21 | final = input.substr(i, input.length() - i); |
| 22 | } |
| 23 | |
| 24 | i = (int)final.length() - 1; |
| 25 | while(i >= 0 && final[i] <= ' ') { |
| 26 | i--; |
| 27 | } |
| 28 | |
| 29 | return final.substr(0, i + 1); |
| 30 | } |
| 31 | |
| 32 | int main() |
| 33 | { |