| 419 | |
| 420 | template<class Writer, class FormattedWriter, class Formatter> |
| 421 | void formatWith(const Writer writer, const FormattedWriter formattedWriter, Containers::StringView format, Containers::ArrayView<Formatter> formatters) { |
| 422 | bool inPlaceholder = false; |
| 423 | std::size_t placeholderOffset = 0; |
| 424 | std::size_t formatterToGo = 0; |
| 425 | std::int32_t placeholderIndex = -1; |
| 426 | FormatContext context{-1, FormatType::Unspecified}; |
| 427 | for (std::size_t formatOffset = 0; formatOffset != format.size(); ) { |
| 428 | // Placeholder begin (or escaped {) |
| 429 | if (format[formatOffset] == '{') { |
| 430 | if (formatOffset + 1 < format.size() && format[formatOffset + 1] == '{') { |
| 431 | writer(format.slice(formatOffset, formatOffset + 1)); |
| 432 | formatOffset += 2; |
| 433 | continue; |
| 434 | } |
| 435 | |
| 436 | DEATH_DEBUG_ASSERT(!inPlaceholder); |
| 437 | inPlaceholder = true; |
| 438 | placeholderOffset = formatOffset; |
| 439 | placeholderIndex = -1; |
| 440 | context.Precision = -1; |
| 441 | context.Type = FormatType::Unspecified; |
| 442 | |
| 443 | formatOffset++; |
| 444 | continue; |
| 445 | } |
| 446 | |
| 447 | // Placeholder end (or escaped }) |
| 448 | if (format[formatOffset] == '}') { |
| 449 | if (!inPlaceholder && formatOffset + 1 < format.size() && format[formatOffset + 1] == '}') { |
| 450 | writer(format.slice(formatOffset, formatOffset + 1)); |
| 451 | formatOffset += 2; |
| 452 | continue; |
| 453 | } |
| 454 | |
| 455 | DEATH_ASSERT(inPlaceholder, "Mismatched }", ); |
| 456 | inPlaceholder = false; |
| 457 | |
| 458 | // If the placeholder was numbered, use that number, otherwise just use the formatter that's next |
| 459 | if (placeholderIndex != -1) formatterToGo = placeholderIndex; |
| 460 | |
| 461 | if (formatterToGo < formatters.size()) { |
| 462 | // Formatter index is in bounds, write |
| 463 | formattedWriter(formatters[formatterToGo], context); |
| 464 | } else { |
| 465 | // Otherwise just verbatim copy the placeholder (including }) |
| 466 | writer(format.slice(placeholderOffset, formatOffset + 1)); |
| 467 | } |
| 468 | |
| 469 | // Next time we see an unnumbered placeholder, take the next formatter |
| 470 | formatterToGo++; |
| 471 | |
| 472 | formatOffset++; |
| 473 | continue; |
| 474 | } |
| 475 | |
| 476 | // Placeholder contents |
| 477 | if (inPlaceholder) { |
| 478 | // Placeholder index |
no test coverage detected