| 56 | } |
| 57 | |
| 58 | int VFormatPrint(FormatPrintTarget* target, const char* format, |
| 59 | const FormatPrintArg** args, int nargs) |
| 60 | { |
| 61 | int total_printed = 0; |
| 62 | int ai = 0; |
| 63 | const char* f = format; |
| 64 | while (*f != '\0') { |
| 65 | const char* p = strchrnul(f, '%'); |
| 66 | target->WriteString(f, p - f); |
| 67 | total_printed += p - f; |
| 68 | f = p; |
| 69 | if (*f) { // If not nul, must be '%' |
| 70 | if (f[1] == '\0') |
| 71 | return -1; |
| 72 | if (f[1] == '%') { |
| 73 | target->WriteChar('%'); |
| 74 | ++total_printed; |
| 75 | f += 2; |
| 76 | } else { |
| 77 | ++f; |
| 78 | PrintSpecification spec; |
| 79 | int n = spec.Parse(f); |
| 80 | if (n > 0) { |
| 81 | if (FillSpeciationFromArg(&spec.width, args, nargs, &ai) < 0) |
| 82 | return -1; |
| 83 | if (FillSpeciationFromArg(&spec.precision, args, nargs, &ai) < 0) |
| 84 | return -1; |
| 85 | if (ai >= nargs) { |
| 86 | LOG(DFATAL) << "Arg out of bound"; |
| 87 | return -1; |
| 88 | } |
| 89 | int printed = args[ai]->Write(target, spec); |
| 90 | if (printed < 0) |
| 91 | return -1; |
| 92 | total_printed += printed; |
| 93 | f += n; |
| 94 | ++ai; |
| 95 | } else { |
| 96 | return -1; |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | if (ai != nargs) { |
| 103 | LOG(WARNING) << "Extra param provided, expect " << ai << ", " |
| 104 | << nargs << " provided"; |
| 105 | } |
| 106 | return total_printed; |
| 107 | } |
| 108 | |
| 109 | int StringVPrintAppend(std::string* target, const char* format, |
| 110 | const FormatPrintArg** args, int nargs) |
no test coverage detected