| 51 | |
| 52 | |
| 53 | std::string Metadata::inferType(const std::string& val) |
| 54 | { |
| 55 | size_t pos; |
| 56 | |
| 57 | long l = 0; |
| 58 | try |
| 59 | { |
| 60 | pos = 0; |
| 61 | l = std::stol(val, &pos); |
| 62 | } |
| 63 | catch (std::invalid_argument&) |
| 64 | {} |
| 65 | if (pos == val.length()) |
| 66 | return (l < 0 ? "nonNegativeInteger" : "integer"); |
| 67 | |
| 68 | try |
| 69 | { |
| 70 | pos = 0; |
| 71 | |
| 72 | // silence discarding return value of function with 'nodiscard' attribute |
| 73 | // with the (void) cast |
| 74 | (void)std::stod(val, &pos); |
| 75 | } |
| 76 | catch(std::invalid_argument&) |
| 77 | {} |
| 78 | |
| 79 | if (pos == val.length()) |
| 80 | return "double"; |
| 81 | |
| 82 | BOX2D b2d; |
| 83 | std::istringstream iss1(val); |
| 84 | try |
| 85 | { |
| 86 | iss1 >> b2d; |
| 87 | if (iss1.good()) |
| 88 | return "bounds"; |
| 89 | } |
| 90 | catch (const BOX2D::error&) |
| 91 | {} |
| 92 | |
| 93 | BOX3D b3d; |
| 94 | std::istringstream iss2(val); |
| 95 | try |
| 96 | { |
| 97 | iss2 >> b3d; |
| 98 | if (iss2.good()) |
| 99 | return "bounds"; |
| 100 | } |
| 101 | catch (const BOX3D::error&) |
| 102 | {} |
| 103 | |
| 104 | if (val == "true" || val == "false") |
| 105 | return "boolean"; |
| 106 | |
| 107 | try |
| 108 | { |
| 109 | gdal::ErrorHandlerSuspender(); |
| 110 | |