| @@ -1,3 +1,4 @@ |
| |
1 | import OrgSwift |
| 1 | import SwiftUI |
2 | import SwiftUI |
| 2 | import WebKit |
3 | import WebKit |
| 3 | |
4 | |
| @@ -314,29 +315,19 @@ struct RenderedMarkupContentView: View { |
| 314 | return |
315 | return |
| 315 | } |
316 | } |
| 316 | let theme = SyntaxHighlightTheme(colorScheme: colorScheme) |
317 | let theme = SyntaxHighlightTheme(colorScheme: colorScheme) |
| |
318 | let host = repositoryHost |
| |
319 | let owner = ownerCanonicalName |
| |
320 | let repo = repositoryName |
| |
321 | let path = readmePath |
| 317 | let html = await Task.detached(priority: .userInitiated) { |
322 | let html = await Task.detached(priority: .userInitiated) { |
| 318 | orgToHTML( |
323 | let options = OrgRenderOptions( |
| 319 | text, |
324 | host: host, |
| 320 | codeTheme: theme, |
325 | owner: owner, |
| 321 | imageURLResolver: { source in |
326 | repositoryName: repo, |
| 322 | resolveRepositoryAssetURL( |
327 | ref: "HEAD", |
| 323 | source, |
328 | readmePath: path |
| 324 | owner: ownerCanonicalName, |
| |
| 325 | repositoryName: repositoryName, |
| |
| 326 | readmePath: readmePath |
| |
| 327 | )? |
| |
| 328 | .replacingOccurrences(of: "git.sr.ht", with: repositoryHost) |
| |
| 329 | }, |
| |
| 330 | linkURLResolver: { source in |
| |
| 331 | resolveRepositoryLinkURL( |
| |
| 332 | source, |
| |
| 333 | owner: ownerCanonicalName, |
| |
| 334 | repositoryName: repositoryName, |
| |
| 335 | readmePath: readmePath |
| |
| 336 | )? |
| |
| 337 | .replacingOccurrences(of: "git.sr.ht", with: repositoryHost) |
| |
| 338 | } |
| |
| 339 | ) |
329 | ) |
| |
330 | return OrgRenderer.renderToHTML(text, options: options, highlighter: SyntaxHighlighter(theme: theme)) |
| 340 | }.value |
331 | }.value |
| 341 | RenderedReadmeHTMLCache.shared.setHTML(html, forKey: cacheKey) |
332 | RenderedReadmeHTMLCache.shared.setHTML(html, forKey: cacheKey) |
| 342 | guard !Task.isCancelled else { return } |
333 | guard !Task.isCancelled else { return } |
| @@ -465,536 +456,6 @@ nonisolated func processInline( |
| 465 | return result |
456 | return result |
| 466 | } |
457 | } |
| 467 | |
458 | |
| 468 | // MARK: - Org-mode to HTML |
| |
| 469 | |
| |
| 470 | nonisolated func orgToHTML( |
| |
| 471 | _ text: String, |
| |
| 472 | codeTheme: SyntaxHighlightTheme = .light, |
| |
| 473 | imageURLResolver: ((String) -> String?)? = nil, |
| |
| 474 | linkURLResolver: ((String) -> String?)? = nil |
| |
| 475 | ) -> String { |
| |
| 476 | let highlighter = SyntaxHighlighter(theme: codeTheme) |
| |
| 477 | let normalizedText = text |
| |
| 478 | .replacingOccurrences(of: "\r\n", with: "\n") |
| |
| 479 | .replacingOccurrences(of: "\r", with: "\n") |
| |
| 480 | let rawLines = normalizedText.split(separator: "\n", omittingEmptySubsequences: false).map(String.init) |
| |
| 481 | var title: String? |
| |
| 482 | var author: String? |
| |
| 483 | var date: String? |
| |
| 484 | let lines = rawLines.filter { line in |
| |
| 485 | let trimmed = line.trimmingCharacters(in: .whitespaces) |
| |
| 486 | guard let directive = orgKeywordDirective(in: trimmed) else { |
| |
| 487 | return true |
| |
| 488 | } |
| |
| 489 | switch directive.keyword { |
| |
| 490 | case "title": |
| |
| 491 | title = directive.value |
| |
| 492 | return false |
| |
| 493 | case "author": |
| |
| 494 | author = directive.value |
| |
| 495 | return false |
| |
| 496 | case "date": |
| |
| 497 | date = directive.value |
| |
| 498 | return false |
| |
| 499 | default: |
| |
| 500 | return true |
| |
| 501 | } |
| |
| 502 | } |
| |
| 503 | var html = "" |
| |
| 504 | var listType: OrgListType? |
| |
| 505 | var inQuoteBlock = false |
| |
| 506 | var inPropertyDrawer = false |
| |
| 507 | var srcLanguage: String? |
| |
| 508 | var srcLines: [String] = [] |
| |
| 509 | var inExampleBlock = false |
| |
| 510 | var inCenterBlock = false |
| |
| 511 | var inVerseBlock = false |
| |
| 512 | var currentListItemLines: [String] = [] |
| |
| 513 | var paragraph: [String] = [] |
| |
| 514 | var tableRows: [[String]] = [] |
| |
| 515 | var propertyRows: [(String, String)] = [] |
| |
| 516 | var verseLines: [String] = [] |
| |
| 517 | var pendingBlockName: String? |
| |
| 518 | var pendingBlockCaption: String? |
| |
| 519 | var activeBlockCaption: String? |
| |
| 520 | var isWrappingBlockFigure = false |
| |
| 521 | |
| |
| 522 | func beginPendingBlockWrapperIfNeeded() { |
| |
| 523 | guard pendingBlockName != nil || pendingBlockCaption != nil else { return } |
| |
| 524 | let idAttribute = pendingBlockName.map { #" id="\#(escapeHTMLAttribute($0))""# } ?? "" |
| |
| 525 | html += #"<figure class="org-block"\#(idAttribute)>"# + "\n" |
| |
| 526 | activeBlockCaption = pendingBlockCaption |
| |
| 527 | isWrappingBlockFigure = true |
| |
| 528 | pendingBlockName = nil |
| |
| 529 | pendingBlockCaption = nil |
| |
| 530 | } |
| |
| 531 | |
| |
| 532 | func closePendingBlockWrapper() { |
| |
| 533 | guard isWrappingBlockFigure else { return } |
| |
| 534 | if let activeBlockCaption { |
| |
| 535 | html += "<figcaption>" + processOrgInline(activeBlockCaption, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) + "</figcaption>\n" |
| |
| 536 | } |
| |
| 537 | html += "</figure>\n" |
| |
| 538 | activeBlockCaption = nil |
| |
| 539 | isWrappingBlockFigure = false |
| |
| 540 | } |
| |
| 541 | |
| |
| 542 | func flushParagraph() { |
| |
| 543 | if !paragraph.isEmpty { |
| |
| 544 | let normalizedParagraph = paragraph |
| |
| 545 | .map { $0.trimmingCharacters(in: .whitespaces) } |
| |
| 546 | .joined(separator: " ") |
| |
| 547 | html += "<p>" + processOrgInline(normalizedParagraph, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) + "</p>\n" |
| |
| 548 | paragraph = [] |
| |
| 549 | } |
| |
| 550 | } |
| |
| 551 | |
| |
| 552 | func flushListItem() { |
| |
| 553 | guard !currentListItemLines.isEmpty else { return } |
| |
| 554 | html += "<li>" + renderOrgListItemBody( |
| |
| 555 | currentListItemLines, |
| |
| 556 | imageURLResolver: imageURLResolver, |
| |
| 557 | linkURLResolver: linkURLResolver |
| |
| 558 | ) + "</li>\n" |
| |
| 559 | currentListItemLines = [] |
| |
| 560 | } |
| |
| 561 | |
| |
| 562 | func closeList() { |
| |
| 563 | flushListItem() |
| |
| 564 | switch listType { |
| |
| 565 | case .unordered: |
| |
| 566 | html += "</ul>\n" |
| |
| 567 | case .ordered: |
| |
| 568 | html += "</ol>\n" |
| |
| 569 | case nil: |
| |
| 570 | break |
| |
| 571 | } |
| |
| 572 | listType = nil |
| |
| 573 | } |
| |
| 574 | |
| |
| 575 | func flushTable() { |
| |
| 576 | guard !tableRows.isEmpty else { return } |
| |
| 577 | beginPendingBlockWrapperIfNeeded() |
| |
| 578 | html += renderHTMLTable( |
| |
| 579 | rows: tableRows, |
| |
| 580 | inlineRenderer: { processOrgInline($0, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) } |
| |
| 581 | ) |
| |
| 582 | closePendingBlockWrapper() |
| |
| 583 | tableRows = [] |
| |
| 584 | } |
| |
| 585 | |
| |
| 586 | func flushPropertyDrawer() { |
| |
| 587 | guard !propertyRows.isEmpty else { return } |
| |
| 588 | html += "<dl class=\"org-properties\">\n" |
| |
| 589 | for (key, value) in propertyRows { |
| |
| 590 | html += "<dt>" + escapeHTML(key) + "</dt>" |
| |
| 591 | html += "<dd>" + processOrgInline(value, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) + "</dd>\n" |
| |
| 592 | } |
| |
| 593 | html += "</dl>\n" |
| |
| 594 | propertyRows = [] |
| |
| 595 | } |
| |
| 596 | |
| |
| 597 | func closeQuoteBlock() { |
| |
| 598 | if inQuoteBlock { |
| |
| 599 | flushParagraph() |
| |
| 600 | html += "</blockquote>\n" |
| |
| 601 | inQuoteBlock = false |
| |
| 602 | } |
| |
| 603 | } |
| |
| 604 | |
| |
| 605 | func closeSourceBlock() { |
| |
| 606 | if let language = srcLanguage { |
| |
| 607 | let code = srcLines.joined(separator: "\n") |
| |
| 608 | if !code.isEmpty { |
| |
| 609 | html += (highlighter.highlightedHTML(for: code, language: language) ?? escapeHTML(code)) + "\n" |
| |
| 610 | } |
| |
| 611 | html += "</code></pre>\n" |
| |
| 612 | srcLanguage = nil |
| |
| 613 | srcLines = [] |
| |
| 614 | closePendingBlockWrapper() |
| |
| 615 | } |
| |
| 616 | } |
| |
| 617 | |
| |
| 618 | func closeExampleBlock() { |
| |
| 619 | if inExampleBlock { |
| |
| 620 | html += "</code></pre>\n" |
| |
| 621 | inExampleBlock = false |
| |
| 622 | closePendingBlockWrapper() |
| |
| 623 | } |
| |
| 624 | } |
| |
| 625 | |
| |
| 626 | func closeCenterBlock() { |
| |
| 627 | if inCenterBlock { |
| |
| 628 | flushParagraph() |
| |
| 629 | html += "</div>\n" |
| |
| 630 | inCenterBlock = false |
| |
| 631 | closePendingBlockWrapper() |
| |
| 632 | } |
| |
| 633 | } |
| |
| 634 | |
| |
| 635 | func closeVerseBlock() { |
| |
| 636 | if inVerseBlock { |
| |
| 637 | let content = verseLines |
| |
| 638 | .map { processOrgInline($0, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) } |
| |
| 639 | .joined(separator: "\n") |
| |
| 640 | html += #"<blockquote class="org-verse">"# + "\n" |
| |
| 641 | html += content + "\n" |
| |
| 642 | html += "</blockquote>\n" |
| |
| 643 | verseLines = [] |
| |
| 644 | inVerseBlock = false |
| |
| 645 | closePendingBlockWrapper() |
| |
| 646 | } |
| |
| 647 | } |
| |
| 648 | |
| |
| 649 | func flushBlockState() { |
| |
| 650 | flushParagraph() |
| |
| 651 | closeList() |
| |
| 652 | flushTable() |
| |
| 653 | flushPropertyDrawer() |
| |
| 654 | } |
| |
| 655 | |
| |
| 656 | if title != nil || author != nil || date != nil { |
| |
| 657 | html += "<div class=\"org-metadata\">\n" |
| |
| 658 | if let title { |
| |
| 659 | html += "<h1 class=\"org-title\">" + escapeHTML(title) + "</h1>\n" |
| |
| 660 | } |
| |
| 661 | if let author { |
| |
| 662 | html += "<p class=\"org-author\">" + escapeHTML(author) + "</p>\n" |
| |
| 663 | } |
| |
| 664 | if let date { |
| |
| 665 | html += "<p class=\"org-date\">" + escapeHTML(date) + "</p>\n" |
| |
| 666 | } |
| |
| 667 | html += "</div>\n" |
| |
| 668 | } |
| |
| 669 | |
| |
| 670 | for line in lines { |
| |
| 671 | let trimmed = line.trimmingCharacters(in: .whitespaces) |
| |
| 672 | |
| |
| 673 | if srcLanguage != nil { |
| |
| 674 | if trimmed.lowercased() == "#+end_src" { |
| |
| 675 | closeSourceBlock() |
| |
| 676 | } else { |
| |
| 677 | srcLines.append(line) |
| |
| 678 | } |
| |
| 679 | continue |
| |
| 680 | } |
| |
| 681 | |
| |
| 682 | if inExampleBlock { |
| |
| 683 | if trimmed.lowercased() == "#+end_example" { |
| |
| 684 | closeExampleBlock() |
| |
| 685 | } else { |
| |
| 686 | html += escapeHTML(line) + "\n" |
| |
| 687 | } |
| |
| 688 | continue |
| |
| 689 | } |
| |
| 690 | |
| |
| 691 | if inVerseBlock { |
| |
| 692 | if trimmed.lowercased() == "#+end_verse" { |
| |
| 693 | closeVerseBlock() |
| |
| 694 | } else { |
| |
| 695 | verseLines.append(line) |
| |
| 696 | } |
| |
| 697 | continue |
| |
| 698 | } |
| |
| 699 | |
| |
| 700 | if inQuoteBlock, trimmed.lowercased() == "#+end_quote" { |
| |
| 701 | closeQuoteBlock() |
| |
| 702 | continue |
| |
| 703 | } |
| |
| 704 | |
| |
| 705 | if inCenterBlock { |
| |
| 706 | if trimmed.lowercased() == "#+end_center" { |
| |
| 707 | closeCenterBlock() |
| |
| 708 | } else if trimmed.isEmpty { |
| |
| 709 | flushParagraph() |
| |
| 710 | } else { |
| |
| 711 | paragraph.append(line) |
| |
| 712 | } |
| |
| 713 | continue |
| |
| 714 | } |
| |
| 715 | |
| |
| 716 | if trimmed == "#" || trimmed.hasPrefix("# ") { |
| |
| 717 | continue |
| |
| 718 | } |
| |
| 719 | |
| |
| 720 | if let directive = orgKeywordDirective(in: trimmed) { |
| |
| 721 | switch directive.keyword { |
| |
| 722 | case "caption": |
| |
| 723 | pendingBlockCaption = directive.value |
| |
| 724 | continue |
| |
| 725 | case "name": |
| |
| 726 | pendingBlockName = directive.value |
| |
| 727 | continue |
| |
| 728 | case "options", "property": |
| |
| 729 | continue |
| |
| 730 | default: |
| |
| 731 | break |
| |
| 732 | } |
| |
| 733 | } |
| |
| 734 | |
| |
| 735 | if trimmed.lowercased().hasPrefix("#+begin_src") { |
| |
| 736 | closeQuoteBlock() |
| |
| 737 | flushBlockState() |
| |
| 738 | beginPendingBlockWrapperIfNeeded() |
| |
| 739 | let language = trimmed |
| |
| 740 | .split(separator: " ", maxSplits: 1, omittingEmptySubsequences: true) |
| |
| 741 | .dropFirst() |
| |
| 742 | .first |
| |
| 743 | .map(String.init)? |
| |
| 744 | .trimmingCharacters(in: .whitespacesAndNewlines) |
| |
| 745 | let classAttribute = language.map { " class=\"language-\(escapeHTMLAttribute($0))\"" } ?? "" |
| |
| 746 | html += "<pre><code\(classAttribute)>" |
| |
| 747 | srcLanguage = language ?? "" |
| |
| 748 | srcLines = [] |
| |
| 749 | continue |
| |
| 750 | } |
| |
| 751 | |
| |
| 752 | if trimmed.lowercased() == "#+begin_example" { |
| |
| 753 | closeQuoteBlock() |
| |
| 754 | flushBlockState() |
| |
| 755 | beginPendingBlockWrapperIfNeeded() |
| |
| 756 | html += "<pre><code>" |
| |
| 757 | inExampleBlock = true |
| |
| 758 | continue |
| |
| 759 | } |
| |
| 760 | |
| |
| 761 | if trimmed.lowercased() == "#+begin_quote" { |
| |
| 762 | flushBlockState() |
| |
| 763 | beginPendingBlockWrapperIfNeeded() |
| |
| 764 | html += "<blockquote>\n" |
| |
| 765 | inQuoteBlock = true |
| |
| 766 | continue |
| |
| 767 | } |
| |
| 768 | |
| |
| 769 | if trimmed.lowercased() == "#+begin_center" { |
| |
| 770 | closeQuoteBlock() |
| |
| 771 | flushBlockState() |
| |
| 772 | beginPendingBlockWrapperIfNeeded() |
| |
| 773 | html += "<div style=\"text-align:center\">\n" |
| |
| 774 | inCenterBlock = true |
| |
| 775 | continue |
| |
| 776 | } |
| |
| 777 | |
| |
| 778 | if trimmed.lowercased() == "#+begin_verse" { |
| |
| 779 | closeQuoteBlock() |
| |
| 780 | flushBlockState() |
| |
| 781 | beginPendingBlockWrapperIfNeeded() |
| |
| 782 | verseLines = [] |
| |
| 783 | inVerseBlock = true |
| |
| 784 | continue |
| |
| 785 | } |
| |
| 786 | |
| |
| 787 | if trimmed == ":PROPERTIES:" { |
| |
| 788 | closeQuoteBlock() |
| |
| 789 | flushBlockState() |
| |
| 790 | inPropertyDrawer = true |
| |
| 791 | continue |
| |
| 792 | } |
| |
| 793 | |
| |
| 794 | if trimmed == ":END:", inPropertyDrawer { |
| |
| 795 | flushPropertyDrawer() |
| |
| 796 | inPropertyDrawer = false |
| |
| 797 | continue |
| |
| 798 | } |
| |
| 799 | |
| |
| 800 | if inPropertyDrawer, |
| |
| 801 | trimmed.hasPrefix(":"), |
| |
| 802 | let secondColonIndex = trimmed.dropFirst().firstIndex(of: ":") { |
| |
| 803 | let keyStart = trimmed.index(after: trimmed.startIndex) |
| |
| 804 | let key = String(trimmed[keyStart..<secondColonIndex]).trimmingCharacters(in: .whitespaces) |
| |
| 805 | let valueStart = trimmed.index(after: secondColonIndex) |
| |
| 806 | let value = String(trimmed[valueStart...]).trimmingCharacters(in: .whitespaces) |
| |
| 807 | if !key.isEmpty { |
| |
| 808 | propertyRows.append((key, value)) |
| |
| 809 | continue |
| |
| 810 | } |
| |
| 811 | } |
| |
| 812 | |
| |
| 813 | if isTableLine(trimmed) { |
| |
| 814 | closeQuoteBlock() |
| |
| 815 | flushParagraph() |
| |
| 816 | closeList() |
| |
| 817 | tableRows.append(parseTableRow(trimmed)) |
| |
| 818 | continue |
| |
| 819 | } else { |
| |
| 820 | flushTable() |
| |
| 821 | } |
| |
| 822 | |
| |
| 823 | if isOrgHorizontalRule(trimmed) { |
| |
| 824 | closeQuoteBlock() |
| |
| 825 | flushBlockState() |
| |
| 826 | html += "<hr>\n" |
| |
| 827 | continue |
| |
| 828 | } |
| |
| 829 | |
| |
| 830 | // Org headings: * heading, ** heading, *** heading |
| |
| 831 | if let match = trimmed.firstMatch(of: /^(\*{1,6})\s+(.+)$/) { |
| |
| 832 | closeQuoteBlock() |
| |
| 833 | flushBlockState() |
| |
| 834 | let level = match.1.count |
| |
| 835 | let content = processOrgInline(String(match.2), imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) |
| |
| 836 | html += "<h\(level)>" + content + "</h\(level)>\n" |
| |
| 837 | continue |
| |
| 838 | } |
| |
| 839 | |
| |
| 840 | if listType != nil && isIndentedContinuationLine(line) { |
| |
| 841 | currentListItemLines.append(line) |
| |
| 842 | continue |
| |
| 843 | } |
| |
| 844 | |
| |
| 845 | // List items: - item |
| |
| 846 | if !isIndentedContinuationLine(line), trimmed.hasPrefix("- ") { |
| |
| 847 | flushParagraph() |
| |
| 848 | flushPropertyDrawer() |
| |
| 849 | if listType != .unordered { |
| |
| 850 | closeList() |
| |
| 851 | html += "<ul>\n" |
| |
| 852 | listType = .unordered |
| |
| 853 | } |
| |
| 854 | flushListItem() |
| |
| 855 | currentListItemLines = [String(trimmed.dropFirst(2))] |
| |
| 856 | continue |
| |
| 857 | } |
| |
| 858 | |
| |
| 859 | if !isIndentedContinuationLine(line), let orderedItem = orderedListItem(in: trimmed) { |
| |
| 860 | flushParagraph() |
| |
| 861 | flushPropertyDrawer() |
| |
| 862 | if listType != .ordered { |
| |
| 863 | closeList() |
| |
| 864 | html += "<ol>\n" |
| |
| 865 | listType = .ordered |
| |
| 866 | } |
| |
| 867 | flushListItem() |
| |
| 868 | currentListItemLines = [orderedItem] |
| |
| 869 | continue |
| |
| 870 | } |
| |
| 871 | |
| |
| 872 | // Blank line |
| |
| 873 | if trimmed.isEmpty { |
| |
| 874 | if inQuoteBlock { |
| |
| 875 | flushParagraph() |
| |
| 876 | } else { |
| |
| 877 | flushBlockState() |
| |
| 878 | } |
| |
| 879 | continue |
| |
| 880 | } |
| |
| 881 | |
| |
| 882 | // Regular text |
| |
| 883 | if pendingBlockName != nil || pendingBlockCaption != nil { |
| |
| 884 | pendingBlockName = nil |
| |
| 885 | pendingBlockCaption = nil |
| |
| 886 | } |
| |
| 887 | paragraph.append(line) |
| |
| 888 | } |
| |
| 889 | |
| |
| 890 | closeSourceBlock() |
| |
| 891 | closeExampleBlock() |
| |
| 892 | closeCenterBlock() |
| |
| 893 | closeVerseBlock() |
| |
| 894 | closeQuoteBlock() |
| |
| 895 | flushBlockState() |
| |
| 896 | |
| |
| 897 | return html |
| |
| 898 | } |
| |
| 899 | |
| |
| 900 | nonisolated private func processOrgInline( |
| |
| 901 | _ text: String, |
| |
| 902 | imageURLResolver: ((String) -> String?)? = nil, |
| |
| 903 | linkURLResolver: ((String) -> String?)? = nil |
| |
| 904 | ) -> String { |
| |
| 905 | var result = escapeHTML(text) |
| |
| 906 | var protectedFragments: [String: String] = [:] |
| |
| 907 | |
| |
| 908 | result = protectMatches( |
| |
| 909 | in: result, |
| |
| 910 | pattern: #"\[\[([^\]]+)\]\[\[([^\]]+)\]\]\]"#, |
| |
| 911 | protectedFragments: &protectedFragments |
| |
| 912 | ) { match, nsText in |
| |
| 913 | let destination = nsText.substring(with: match.range(at: 1)) |
| |
| 914 | let source = nsText.substring(with: match.range(at: 2)) |
| |
| 915 | guard let imageHTML = makeOrgImageHTML( |
| |
| 916 | source: source, |
| |
| 917 | alt: nil, |
| |
| 918 | imageURLResolver: imageURLResolver |
| |
| 919 | ) else { |
| |
| 920 | return source |
| |
| 921 | } |
| |
| 922 | let resolvedDestination = linkURLResolver?(destination) ?? destination |
| |
| 923 | guard let sanitizedURL = sanitizedReadmeLinkURLString(resolvedDestination) else { |
| |
| 924 | return imageHTML |
| |
| 925 | } |
| |
| 926 | return #"<a href="\#(sanitizedURL)">\#(imageHTML)</a>"# |
| |
| 927 | } |
| |
| 928 | |
| |
| 929 | result = protectOrgLinks( |
| |
| 930 | in: result, |
| |
| 931 | protectedFragments: &protectedFragments, |
| |
| 932 | imageURLResolver: imageURLResolver, |
| |
| 933 | linkURLResolver: linkURLResolver |
| |
| 934 | ) |
| |
| 935 | result = protectMatches( |
| |
| 936 | in: result, |
| |
| 937 | pattern: #"(?<!\S)~(.+?)~(?=\s|$|[.,;:!?])|(?<!\S)=(.+?)=(?=\s|$|[.,;:!?])"#, |
| |
| 938 | protectedFragments: &protectedFragments |
| |
| 939 | ) { match, nsText in |
| |
| 940 | let tildeRange = match.range(at: 1) |
| |
| 941 | let equalsRange = match.range(at: 2) |
| |
| 942 | let codeText: String |
| |
| 943 | if tildeRange.location != NSNotFound { |
| |
| 944 | codeText = nsText.substring(with: tildeRange) |
| |
| 945 | } else { |
| |
| 946 | codeText = nsText.substring(with: equalsRange) |
| |
| 947 | } |
| |
| 948 | return "<code>\(codeText)</code>" |
| |
| 949 | } |
| |
| 950 | result = protectMatches( |
| |
| 951 | in: result, |
| |
| 952 | pattern: #"(?<!\S)\+(.+?)\+(?=\s|$|[.,;:!?])"#, |
| |
| 953 | protectedFragments: &protectedFragments |
| |
| 954 | ) { match, nsText in |
| |
| 955 | let value = nsText.substring(with: match.range(at: 1)) |
| |
| 956 | return "<del>\(value)</del>" |
| |
| 957 | } |
| |
| 958 | result = protectMatches( |
| |
| 959 | in: result, |
| |
| 960 | pattern: #"(?<!\S)_(.+?)_(?=\s|$|[.,;:!?])"#, |
| |
| 961 | protectedFragments: &protectedFragments |
| |
| 962 | ) { match, nsText in |
| |
| 963 | let value = nsText.substring(with: match.range(at: 1)) |
| |
| 964 | return "<u>\(value)</u>" |
| |
| 965 | } |
| |
| 966 | |
| |
| 967 | // Bold: *text* |
| |
| 968 | result = result.replacingOccurrences( |
| |
| 969 | of: #"(?<!\S)\*(.+?)\*(?=\s|$|[.,;:!?])"#, |
| |
| 970 | with: "<strong>$1</strong>", |
| |
| 971 | options: .regularExpression |
| |
| 972 | ) |
| |
| 973 | // Italic: /text/ |
| |
| 974 | result = result.replacingOccurrences( |
| |
| 975 | of: #"(?<!\S)/(.+?)/(?=\s|$|[.,;:!?])"#, |
| |
| 976 | with: "<em>$1</em>", |
| |
| 977 | options: .regularExpression |
| |
| 978 | ) |
| |
| 979 | result = replaceMatches( |
| |
| 980 | in: result, |
| |
| 981 | pattern: #"(?i)(?<![\w.%+\-])([A-Z0-9._%+\-]+@[A-Z0-9.\-]+\.[A-Z]{2,})(?![\w\-])"# |
| |
| 982 | ) { match, nsText in |
| |
| 983 | guard !isInsideHTMLTag(nsText, range: match.range) else { |
| |
| 984 | return nsText.substring(with: match.range) |
| |
| 985 | } |
| |
| 986 | let email = nsText.substring(with: match.range(at: 1)) |
| |
| 987 | let href = escapeHTMLAttribute("mailto:\(email)") |
| |
| 988 | return #"<a href="\#(href)">\#(email)</a>"# |
| |
| 989 | } |
| |
| 990 | |
| |
| 991 | for (token, fragment) in protectedFragments { |
| |
| 992 | result = result.replacingOccurrences(of: token, with: fragment) |
| |
| 993 | } |
| |
| 994 | |
| |
| 995 | return result |
| |
| 996 | } |
| |
| 997 | |
| |
| 998 | // MARK: - HTML Escaping |
459 | // MARK: - HTML Escaping |
| 999 | |
460 | |
| 1000 | nonisolated func escapeHTML(_ text: String) -> String { |
461 | nonisolated func escapeHTML(_ text: String) -> String { |
| @@ -1059,330 +520,6 @@ nonisolated private func sanitizeReadmeURLString( |
| 1059 | return escapeHTMLAttribute(sanitizedURL) |
520 | return escapeHTMLAttribute(sanitizedURL) |
| 1060 | } |
521 | } |
| 1061 | |
522 | |
| 1062 | nonisolated private func isTableLine(_ line: String) -> Bool { |
| |
| 1063 | line.hasPrefix("|") && line.hasSuffix("|") |
| |
| 1064 | } |
| |
| 1065 | |
| |
| 1066 | nonisolated private func parseTableRow(_ line: String) -> [String] { |
| |
| 1067 | line |
| |
| 1068 | .split(separator: "|", omittingEmptySubsequences: false) |
| |
| 1069 | .dropFirst() |
| |
| 1070 | .dropLast() |
| |
| 1071 | .map { String($0).trimmingCharacters(in: .whitespaces) } |
| |
| 1072 | } |
| |
| 1073 | |
| |
| 1074 | nonisolated private func parseOrgTableSeparatorRow(_ line: String) -> [String] { |
| |
| 1075 | var content = line.trimmingCharacters(in: .whitespaces) |
| |
| 1076 | if content.hasPrefix("|") { |
| |
| 1077 | content.removeFirst() |
| |
| 1078 | } |
| |
| 1079 | if content.hasSuffix("|") { |
| |
| 1080 | content.removeLast() |
| |
| 1081 | } |
| |
| 1082 | return content |
| |
| 1083 | .split(separator: "+", omittingEmptySubsequences: false) |
| |
| 1084 | .map { String($0).trimmingCharacters(in: .whitespaces) } |
| |
| 1085 | } |
| |
| 1086 | |
| |
| 1087 | nonisolated private func isTableSeparatorCell(_ cell: String) -> Bool { |
| |
| 1088 | tableAlignment(for: cell) != nil |
| |
| 1089 | } |
| |
| 1090 | |
| |
| 1091 | nonisolated private func tableAlignment(for cell: String) -> String? { |
| |
| 1092 | let trimmed = cell.trimmingCharacters(in: .whitespaces) |
| |
| 1093 | guard !trimmed.isEmpty else { return nil } |
| |
| 1094 | |
| |
| 1095 | let core = trimmed.replacingOccurrences(of: ":", with: "") |
| |
| 1096 | guard !core.isEmpty, core.allSatisfy({ $0 == "-" || $0 == "+" }) else { |
| |
| 1097 | return nil |
| |
| 1098 | } |
| |
| 1099 | |
| |
| 1100 | let isLeftAligned = trimmed.hasPrefix(":") |
| |
| 1101 | let isRightAligned = trimmed.hasSuffix(":") |
| |
| 1102 | switch (isLeftAligned, isRightAligned) { |
| |
| 1103 | case (true, true): |
| |
| 1104 | return "center" |
| |
| 1105 | case (true, false): |
| |
| 1106 | return "left" |
| |
| 1107 | case (false, true): |
| |
| 1108 | return "right" |
| |
| 1109 | case (false, false): |
| |
| 1110 | return "" |
| |
| 1111 | } |
| |
| 1112 | } |
| |
| 1113 | |
| |
| 1114 | nonisolated private func renderHTMLTable( |
| |
| 1115 | rows: [[String]], |
| |
| 1116 | inlineRenderer: (String) -> String |
| |
| 1117 | ) -> String { |
| |
| 1118 | guard !rows.isEmpty else { return "" } |
| |
| 1119 | let separatorCells: [String] |
| |
| 1120 | if rows.count > 1, rows[1].count == 1 { |
| |
| 1121 | separatorCells = parseOrgTableSeparatorRow(rows[1][0]) |
| |
| 1122 | } else { |
| |
| 1123 | separatorCells = rows.count > 1 ? rows[1] : [] |
| |
| 1124 | } |
| |
| 1125 | let hasHeaderSeparator = rows.count > 1 && !separatorCells.isEmpty && separatorCells.allSatisfy(isTableSeparatorCell) |
| |
| 1126 | let headerRow = rows.first ?? [] |
| |
| 1127 | let bodyRows = hasHeaderSeparator ? Array(rows.dropFirst(2)) : rows |
| |
| 1128 | let columnAlignments = hasHeaderSeparator ? separatorCells.map(tableAlignment) : [] |
| |
| 1129 | var html = "<table>\n" |
| |
| 1130 | |
| |
| 1131 | if hasHeaderSeparator { |
| |
| 1132 | html += "<thead><tr>" |
| |
| 1133 | for (index, cell) in headerRow.enumerated() { |
| |
| 1134 | html += "<th" + tableAlignmentStyleAttribute(columnAlignment(at: index, in: columnAlignments)) + ">" + inlineRenderer(cell) + "</th>" |
| |
| 1135 | } |
| |
| 1136 | html += "</tr></thead>\n" |
| |
| 1137 | } |
| |
| 1138 | |
| |
| 1139 | html += "<tbody>\n" |
| |
| 1140 | for row in bodyRows { |
| |
| 1141 | html += "<tr>" |
| |
| 1142 | for (index, cell) in row.enumerated() { |
| |
| 1143 | html += "<td" + tableAlignmentStyleAttribute(columnAlignment(at: index, in: columnAlignments)) + ">" + inlineRenderer(cell) + "</td>" |
| |
| 1144 | } |
| |
| 1145 | html += "</tr>\n" |
| |
| 1146 | } |
| |
| 1147 | html += "</tbody>\n" |
| |
| 1148 | html += "</table>\n" |
| |
| 1149 | return html |
| |
| 1150 | } |
| |
| 1151 | |
| |
| 1152 | nonisolated private func columnAlignment(at index: Int, in alignments: [String?]) -> String? { |
| |
| 1153 | guard alignments.indices.contains(index) else { return nil } |
| |
| 1154 | return alignments[index] |
| |
| 1155 | } |
| |
| 1156 | |
| |
| 1157 | nonisolated private func tableAlignmentStyleAttribute(_ alignment: String?) -> String { |
| |
| 1158 | guard let alignment, !alignment.isEmpty else { return "" } |
| |
| 1159 | return #" style="text-align: \#(alignment);""# |
| |
| 1160 | } |
| |
| 1161 | |
| |
| 1162 | private enum OrgListType: Equatable { |
| |
| 1163 | case unordered |
| |
| 1164 | case ordered |
| |
| 1165 | } |
| |
| 1166 | |
| |
| 1167 | nonisolated private func orderedListItem(in line: String) -> String? { |
| |
| 1168 | guard let match = line.firstMatch(of: /^(\d+)\.\s+(.+)$/) else { return nil } |
| |
| 1169 | return String(match.2) |
| |
| 1170 | } |
| |
| 1171 | |
| |
| 1172 | nonisolated private func renderOrgListItemBody( |
| |
| 1173 | _ lines: [String], |
| |
| 1174 | imageURLResolver: ((String) -> String?)? = nil, |
| |
| 1175 | linkURLResolver: ((String) -> String?)? = nil |
| |
| 1176 | ) -> String { |
| |
| 1177 | guard let firstLine = lines.first else { return "" } |
| |
| 1178 | |
| |
| 1179 | var contentLines: [String] = [firstLine.trimmingCharacters(in: .whitespaces)] |
| |
| 1180 | var nestedLines: [String] = [] |
| |
| 1181 | |
| |
| 1182 | for line in lines.dropFirst() { |
| |
| 1183 | let trimmed = line.trimmingCharacters(in: .whitespaces) |
| |
| 1184 | if trimmed.isEmpty { |
| |
| 1185 | continue |
| |
| 1186 | } |
| |
| 1187 | |
| |
| 1188 | if isIndentedListItemLine(line) { |
| |
| 1189 | nestedLines.append(outdentOrgListLine(line)) |
| |
| 1190 | } else { |
| |
| 1191 | contentLines.append(trimmed) |
| |
| 1192 | } |
| |
| 1193 | } |
| |
| 1194 | |
| |
| 1195 | var html = renderTaskListItem( |
| |
| 1196 | contentLines.joined(separator: " "), |
| |
| 1197 | inlineRenderer: { processOrgInline($0, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) } |
| |
| 1198 | ) |
| |
| 1199 | if !nestedLines.isEmpty { |
| |
| 1200 | html += "\n" + renderNestedOrgListHTML(nestedLines, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) |
| |
| 1201 | } |
| |
| 1202 | return html |
| |
| 1203 | } |
| |
| 1204 | |
| |
| 1205 | nonisolated private func renderNestedOrgListHTML( |
| |
| 1206 | _ lines: [String], |
| |
| 1207 | imageURLResolver: ((String) -> String?)? = nil, |
| |
| 1208 | linkURLResolver: ((String) -> String?)? = nil |
| |
| 1209 | ) -> String { |
| |
| 1210 | var html = "" |
| |
| 1211 | var listType: OrgListType? |
| |
| 1212 | var currentItemLines: [String] = [] |
| |
| 1213 | |
| |
| 1214 | func flushNestedItem() { |
| |
| 1215 | guard !currentItemLines.isEmpty else { return } |
| |
| 1216 | html += "<li>" + renderOrgListItemBody(currentItemLines, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) + "</li>\n" |
| |
| 1217 | currentItemLines = [] |
| |
| 1218 | } |
| |
| 1219 | |
| |
| 1220 | func closeNestedList() { |
| |
| 1221 | flushNestedItem() |
| |
| 1222 | switch listType { |
| |
| 1223 | case .unordered: |
| |
| 1224 | html += "</ul>\n" |
| |
| 1225 | case .ordered: |
| |
| 1226 | html += "</ol>\n" |
| |
| 1227 | case nil: |
| |
| 1228 | break |
| |
| 1229 | } |
| |
| 1230 | listType = nil |
| |
| 1231 | } |
| |
| 1232 | |
| |
| 1233 | for line in lines { |
| |
| 1234 | let trimmed = line.trimmingCharacters(in: .whitespaces) |
| |
| 1235 | if trimmed.hasPrefix("- ") { |
| |
| 1236 | if listType != .unordered { |
| |
| 1237 | closeNestedList() |
| |
| 1238 | html += "<ul>\n" |
| |
| 1239 | listType = .unordered |
| |
| 1240 | } |
| |
| 1241 | flushNestedItem() |
| |
| 1242 | currentItemLines = [String(trimmed.dropFirst(2))] |
| |
| 1243 | continue |
| |
| 1244 | } |
| |
| 1245 | |
| |
| 1246 | if let orderedItem = orderedListItem(in: trimmed) { |
| |
| 1247 | if listType != .ordered { |
| |
| 1248 | closeNestedList() |
| |
| 1249 | html += "<ol>\n" |
| |
| 1250 | listType = .ordered |
| |
| 1251 | } |
| |
| 1252 | flushNestedItem() |
| |
| 1253 | currentItemLines = [orderedItem] |
| |
| 1254 | continue |
| |
| 1255 | } |
| |
| 1256 | |
| |
| 1257 | if listType != nil { |
| |
| 1258 | currentItemLines.append(line) |
| |
| 1259 | } |
| |
| 1260 | } |
| |
| 1261 | |
| |
| 1262 | closeNestedList() |
| |
| 1263 | return html |
| |
| 1264 | } |
| |
| 1265 | |
| |
| 1266 | nonisolated private func protectOrgLinks( |
| |
| 1267 | in text: String, |
| |
| 1268 | protectedFragments: inout [String: String], |
| |
| 1269 | imageURLResolver: ((String) -> String?)? = nil, |
| |
| 1270 | linkURLResolver: ((String) -> String?)? = nil |
| |
| 1271 | ) -> String { |
| |
| 1272 | var result = text |
| |
| 1273 | |
| |
| 1274 | while let range = result.range(of: "[[") { |
| |
| 1275 | guard let parsed = parseOrgLink(in: result, from: range.lowerBound) else { |
| |
| 1276 | break |
| |
| 1277 | } |
| |
| 1278 | let token = "ZZPROTECTED\(protectedFragments.count)ZZ" |
| |
| 1279 | protectedFragments[token] = renderOrgLink( |
| |
| 1280 | destination: parsed.destination, |
| |
| 1281 | label: parsed.label, |
| |
| 1282 | imageURLResolver: imageURLResolver, |
| |
| 1283 | linkURLResolver: linkURLResolver |
| |
| 1284 | ) |
| |
| 1285 | result.replaceSubrange(parsed.range, with: token) |
| |
| 1286 | } |
| |
| 1287 | |
| |
| 1288 | return result |
| |
| 1289 | } |
| |
| 1290 | |
| |
| 1291 | nonisolated private func parseOrgLink( |
| |
| 1292 | in text: String, |
| |
| 1293 | from start: String.Index |
| |
| 1294 | ) -> (range: Range<String.Index>, destination: String, label: String?)? { |
| |
| 1295 | guard text[start...].hasPrefix("[[") else { return nil } |
| |
| 1296 | |
| |
| 1297 | var index = text.index(start, offsetBy: 2) |
| |
| 1298 | guard let destinationEnd = text[index...].range(of: "][" )?.lowerBound else { |
| |
| 1299 | guard let end = text[index...].range(of: "]]")?.lowerBound else { return nil } |
| |
| 1300 | return (start..<text.index(end, offsetBy: 2), String(text[index..<end]), nil) |
| |
| 1301 | } |
| |
| 1302 | |
| |
| 1303 | let destination = String(text[index..<destinationEnd]) |
| |
| 1304 | index = text.index(destinationEnd, offsetBy: 2) |
| |
| 1305 | let labelStart = index |
| |
| 1306 | var depth = 0 |
| |
| 1307 | |
| |
| 1308 | while index < text.endIndex { |
| |
| 1309 | if text[index...].hasPrefix("[[") { |
| |
| 1310 | depth += 1 |
| |
| 1311 | index = text.index(index, offsetBy: 2) |
| |
| 1312 | continue |
| |
| 1313 | } |
| |
| 1314 | if text[index...].hasPrefix("]]") { |
| |
| 1315 | if depth == 0 { |
| |
| 1316 | let end = text.index(index, offsetBy: 2) |
| |
| 1317 | return (start..<end, destination, String(text[labelStart..<index])) |
| |
| 1318 | } |
| |
| 1319 | depth -= 1 |
| |
| 1320 | index = text.index(index, offsetBy: 2) |
| |
| 1321 | continue |
| |
| 1322 | } |
| |
| 1323 | index = text.index(after: index) |
| |
| 1324 | } |
| |
| 1325 | |
| |
| 1326 | return nil |
| |
| 1327 | } |
| |
| 1328 | |
| |
| 1329 | nonisolated private func renderOrgLink( |
| |
| 1330 | destination: String, |
| |
| 1331 | label: String?, |
| |
| 1332 | imageURLResolver: ((String) -> String?)? = nil, |
| |
| 1333 | linkURLResolver: ((String) -> String?)? = nil |
| |
| 1334 | ) -> String { |
| |
| 1335 | if let label, label.hasPrefix("[["), label.hasSuffix("]]") { |
| |
| 1336 | let source = String(label.dropFirst(2).dropLast(2)) |
| |
| 1337 | if let imageHTML = makeOrgImageHTML(source: source, alt: nil, imageURLResolver: imageURLResolver) { |
| |
| 1338 | let resolvedDestination = linkURLResolver?(destination) ?? destination |
| |
| 1339 | guard let sanitizedURL = sanitizedReadmeLinkURLString(resolvedDestination) else { |
| |
| 1340 | return imageHTML |
| |
| 1341 | } |
| |
| 1342 | return #"<a href="\#(sanitizedURL)">\#(imageHTML)</a>"# |
| |
| 1343 | } |
| |
| 1344 | } |
| |
| 1345 | |
| |
| 1346 | if let imageHTML = makeOrgImageHTML( |
| |
| 1347 | source: destination, |
| |
| 1348 | alt: label, |
| |
| 1349 | imageURLResolver: imageURLResolver |
| |
| 1350 | ) { |
| |
| 1351 | return imageHTML |
| |
| 1352 | } |
| |
| 1353 | |
| |
| 1354 | let resolvedDestination = linkURLResolver?(destination) ?? destination |
| |
| 1355 | guard let sanitizedURL = sanitizedReadmeLinkURLString(resolvedDestination) else { |
| |
| 1356 | return label ?? destination |
| |
| 1357 | } |
| |
| 1358 | |
| |
| 1359 | let renderedLabel = label.map { |
| |
| 1360 | processOrgInline($0, imageURLResolver: imageURLResolver, linkURLResolver: linkURLResolver) |
| |
| 1361 | } ?? destination |
| |
| 1362 | return #"<a href="\#(sanitizedURL)">\#(renderedLabel)</a>"# |
| |
| 1363 | } |
| |
| 1364 | |
| |
| 1365 | nonisolated private func orgKeywordDirective(in line: String) -> (keyword: String, value: String)? { |
| |
| 1366 | guard let match = line.firstMatch(of: /^#\+([A-Za-z][A-Za-z0-9_-]*):\s*(.*)$/) else { |
| |
| 1367 | return nil |
| |
| 1368 | } |
| |
| 1369 | return ( |
| |
| 1370 | keyword: String(match.1).lowercased(), |
| |
| 1371 | value: String(match.2).trimmingCharacters(in: .whitespaces) |
| |
| 1372 | ) |
| |
| 1373 | } |
| |
| 1374 | |
| |
| 1375 | |
| |
| 1376 | nonisolated private func isOrgHorizontalRule(_ line: String) -> Bool { |
| |
| 1377 | matchesRegex(line, pattern: #"^\s*-{5,}\s*$"#) |
| |
| 1378 | } |
| |
| 1379 | |
| |
| 1380 | nonisolated private func matchesRegex(_ text: String, pattern: String) -> Bool { |
| |
| 1381 | guard let regex = try? NSRegularExpression(pattern: pattern) else { return false } |
| |
| 1382 | let range = NSRange(location: 0, length: (text as NSString).length) |
| |
| 1383 | return regex.firstMatch(in: text, range: range) != nil |
| |
| 1384 | } |
| |
| 1385 | |
| |
| 1386 | nonisolated private func isInsideHTMLTag(_ text: NSString, range: NSRange) -> Bool { |
523 | nonisolated private func isInsideHTMLTag(_ text: NSString, range: NSRange) -> Bool { |
| 1387 | guard range.location != NSNotFound else { return false } |
524 | guard range.location != NSNotFound else { return false } |
| 1388 | let prefix = text.substring(to: range.location) |
525 | let prefix = text.substring(to: range.location) |
| @@ -1391,26 +528,6 @@ nonisolated private func isInsideHTMLTag(_ text: NSString, range: NSRange) -> Bo |
| 1391 | return lastOpen > lastClose |
528 | return lastOpen > lastClose |
| 1392 | } |
529 | } |
| 1393 | |
530 | |
| 1394 | nonisolated private func isIndentedContinuationLine(_ line: String) -> Bool { |
| |
| 1395 | guard !line.trimmingCharacters(in: .whitespaces).isEmpty else { return false } |
| |
| 1396 | guard let first = line.first else { return false } |
| |
| 1397 | return first == " " || first == "\t" |
| |
| 1398 | } |
| |
| 1399 | |
| |
| 1400 | nonisolated private func isIndentedListItemLine(_ line: String) -> Bool { |
| |
| 1401 | guard isIndentedContinuationLine(line) else { return false } |
| |
| 1402 | let trimmed = line.trimmingCharacters(in: .whitespaces) |
| |
| 1403 | return trimmed.hasPrefix("- ") || orderedListItem(in: trimmed) != nil |
| |
| 1404 | } |
| |
| 1405 | |
| |
| 1406 | nonisolated private func outdentOrgListLine(_ line: String) -> String { |
| |
| 1407 | var result = line |
| |
| 1408 | while result.first == " " || result.first == "\t" { |
| |
| 1409 | result.removeFirst() |
| |
| 1410 | } |
| |
| 1411 | return result |
| |
| 1412 | } |
| |
| 1413 | |
| |
| 1414 | private extension Array { |
531 | private extension Array { |
| 1415 | subscript(safe index: Int) -> Element? { |
532 | subscript(safe index: Int) -> Element? { |
| 1416 | guard indices.contains(index) else { return nil } |
533 | guard indices.contains(index) else { return nil } |
| @@ -1556,24 +673,6 @@ nonisolated private func replaceMatches( |
| 1556 | return result |
673 | return result |
| 1557 | } |
674 | } |
| 1558 | |
675 | |
| 1559 | nonisolated private func makeOrgImageHTML( |
| |
| 1560 | source: String, |
| |
| 1561 | alt: String?, |
| |
| 1562 | imageURLResolver: ((String) -> String?)? |
| |
| 1563 | ) -> String? { |
| |
| 1564 | guard isRenderableImageSource(source) else { return nil } |
| |
| 1565 | let resolvedSource = imageURLResolver?(source) ?? source |
| |
| 1566 | guard let sanitizedSource = sanitizedReadmeImageURLString(resolvedSource) else { return nil } |
| |
| 1567 | let altText = escapeHTMLAttribute(alt ?? "") |
| |
| 1568 | return #"<img src="\#(sanitizedSource)" alt="\#(altText)">"# |
| |
| 1569 | } |
| |
| 1570 | |
| |
| 1571 | nonisolated private func isRenderableImageSource(_ source: String) -> Bool { |
| |
| 1572 | let lowercased = source.lowercased() |
| |
| 1573 | return [".png", ".jpg", ".jpeg", ".gif", ".webp", ".svg", ".bmp", ".heic"] |
| |
| 1574 | .contains(where: { lowercased.hasSuffix($0) }) |
| |
| 1575 | } |
| |
| 1576 | |
| |
| 1577 | nonisolated func resolveRepositoryLinkURL( |
676 | nonisolated func resolveRepositoryLinkURL( |
| 1578 | _ source: String, |
677 | _ source: String, |
| 1579 | owner: String, |
678 | owner: String, |
| @@ -1654,28 +753,6 @@ nonisolated private func normalizeRepositoryPath(_ path: String) -> String { |
| 1654 | return components.joined(separator: "/") |
753 | return components.joined(separator: "/") |
| 1655 | } |
754 | } |
| 1656 | |
755 | |
| 1657 | nonisolated private func renderTaskListItem( |
| |
| 1658 | _ text: String, |
| |
| 1659 | inlineRenderer: (String) -> String |
| |
| 1660 | ) -> String { |
| |
| 1661 | let trimmed = text.trimmingCharacters(in: .whitespaces) |
| |
| 1662 | guard trimmed.count >= 4 else { |
| |
| 1663 | return inlineRenderer(text) |
| |
| 1664 | } |
| |
| 1665 | |
| |
| 1666 | let prefix = String(trimmed.prefix(4)) |
| |
| 1667 | let remainder = String(trimmed.dropFirst(4)).trimmingCharacters(in: .whitespaces) |
| |
| 1668 | |
| |
| 1669 | switch prefix { |
| |
| 1670 | case "[ ] ": |
| |
| 1671 | return #"<span class="task-list-item"><input type="checkbox" disabled> \#(inlineRenderer(remainder))</span>"# |
| |
| 1672 | case "[x] ", "[X] ": |
| |
| 1673 | return #"<span class="task-list-item"><input type="checkbox" checked disabled> \#(inlineRenderer(remainder))</span>"# |
| |
| 1674 | default: |
| |
| 1675 | return inlineRenderer(text) |
| |
| 1676 | } |
| |
| 1677 | } |
| |
| 1678 | |
| |
| 1679 | // MARK: - WKWebView Wrapper |
756 | // MARK: - WKWebView Wrapper |
| 1680 | |
757 | |
| 1681 | /// A WKWebView wrapper that renders HTML inline and grows to fit its content. |
758 | /// A WKWebView wrapper that renders HTML inline and grows to fit its content. |