Add links to headlines

CHDataManagement.xcodeproj/project.pbxproj

@@ -189,6 +189,7 @@
 		E2B85F432C4294F60047CD0C /* FeedEntry.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2B85F422C4294F60047CD0C /* FeedEntry.swift */; };
 		E2B85F452C429ED60047CD0C /* ImageGallery.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2B85F442C429ED60047CD0C /* ImageGallery.swift */; };
 		E2B85F572C4BD0BB0047CD0C /* Binding+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2B85F562C4BD0BB0047CD0C /* Binding+Extension.swift */; };
+		E2BF1BC62D6B16FF003089F1 /* HeadlineLink.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2BF1BC52D6B16FA003089F1 /* HeadlineLink.swift */; };
 		E2DD04742C276F31003BFF1F /* MainView.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2DD04732C276F31003BFF1F /* MainView.swift */; };
 		E2DD047A2C276F32003BFF1F /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = E2DD04792C276F32003BFF1F /* Assets.xcassets */; };
 		E2DD047E2C276F32003BFF1F /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = E2DD047D2C276F32003BFF1F /* Preview Assets.xcassets */; };
@@ -457,6 +458,7 @@
 		E2B85F422C4294F60047CD0C /* FeedEntry.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedEntry.swift; sourceTree = "<group>"; };
 		E2B85F442C429ED60047CD0C /* ImageGallery.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImageGallery.swift; sourceTree = "<group>"; };
 		E2B85F562C4BD0BB0047CD0C /* Binding+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Binding+Extension.swift"; sourceTree = "<group>"; };
+		E2BF1BC52D6B16FA003089F1 /* HeadlineLink.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HeadlineLink.swift; sourceTree = "<group>"; };
 		E2DD04702C276F31003BFF1F /* CHDataManagement.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = CHDataManagement.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		E2DD04732C276F31003BFF1F /* MainView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainView.swift; sourceTree = "<group>"; };
 		E2DD04792C276F32003BFF1F /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
@@ -694,6 +696,7 @@
 		E29D311E2D0320D90051B7F4 /* ContentElements */ = {
 			isa = PBXGroup;
 			children = (
+				E2BF1BC52D6B16FA003089F1 /* HeadlineLink.swift */,
 				E2B4821F2D67074C005C309D /* WallpaperSlider.swift */,
 				E29D31C12D0DBED70051B7F4 /* AudioPlayer */,
 				E29D318A2D0B07E60051B7F4 /* ContentBox.swift */,
@@ -1285,6 +1288,7 @@
 				E229904C2D10BE5D009F8D77 /* InitialSetupView.swift in Sources */,
 				E218502B2CF790B30090B18B /* PostContentView.swift in Sources */,
 				E29D317D2D086AB00051B7F4 /* Int+Random.swift in Sources */,
+				E2BF1BC62D6B16FF003089F1 /* HeadlineLink.swift in Sources */,
 				E25DA56F2D00F9A100AEF16D /* PostFeedSettingsView.swift in Sources */,
 				E2521E042D51796000C56662 /* StorageErrorView.swift in Sources */,
 				E29D313B2D04464A0051B7F4 /* LocalizedTagDetailView.swift in Sources */,

CHDataManagement/Generator/Blocks/PhoneScreensBlock.swift

@@ -23,7 +23,6 @@ struct PhoneScreensBlock: OrderedKeyBlockProcessor {
     }
 
     func process(_ arguments: [(key: Key, value: String)], markdown: Substring) -> String {
-        print("Processing Phone Screens Block")
         guard let frameId = arguments.first(where: {$0.key == .frame })?.value else {
             invalid(markdown)
             return ""

CHDataManagement/Generator/Markdown/MarkdownHeadlineProcessor.swift

@@ -19,20 +19,20 @@ struct MarkdownHeadlineProcessor: MarkdownProcessor {
     /**
      Modify headlines by extracting an id from the headline and adding it into the html element
 
-     Format: ##<title>#<id>
-
      The id is created by lowercasing the string, removing all special characters, and replacing spaces with scores
      */
     func process(html: String, markdown: Substring) -> String {
-        let id = markdown
+        let parts2 = markdown.components(separatedBy: "#")
-            .last(after: "#")
+        // Determine the type of heading, e.g. 2 for <h2>
-            .trimmed
+        let headlineParts = parts2.drop { $0.isEmpty }
-            .filter { $0.isNumber || $0.isLetter || $0 == " " }
+        let headlineType = parts2.count - headlineParts.count
-            .lowercased()
+
-            .components(separatedBy: " ")
+        guard headlineType > 1 && headlineType < 4 else {
-            .filter { $0 != "" }
+            return html
-            .joined(separator: "-")
+        }
-        let parts = html.components(separatedBy: ">")
+
-        return parts[0] + " id=\"\(id)\">" + parts.dropFirst().joined(separator: ">")
+        let title = headlineParts.joined(separator: "#")
+        let headline = HeadlineLink(level: headlineType, title: title)
+        return headline.content
     }
 }

CHDataManagement/Page Elements/ContentElements/HeadlineLink.swift

@@ -0,0 +1,42 @@
+
+struct HeadlineLink: HtmlProducer {
+
+    /// The type of headline, e.g. `2` for `<h2>`
+    let level: Int
+
+    let title: String
+
+    var id: String {
+        title.validHtmlId()
+    }
+
+    func populate(_ result: inout String) {
+        result += "<h\(level) id='\(id)'>"
+        result += "<a href='#\(id)'>\(title)</a>"
+        result += "</h\(level)>"
+    }
+}
+
+private extension String {
+
+    static let characterReplacements: [Character: String] = [
+        "ä": "ae", "ö": "oe", "ü": "ue", "ß": "ss",
+        "Ä": "Ae", "Ö": "Oe", "Ü": "Ue",
+        " ": "-", "/": "-", "&": "and"
+    ]
+
+    func validHtmlId() -> String {
+        var result = self.lowercased()
+
+        for (char, replacement) in String.characterReplacements {
+            result = result.replacingOccurrences(of: String(char), with: replacement)
+        }
+
+        result = result.filter { $0.isLetter || $0.isNumber || $0 == "-" }
+
+        return result
+            .components(separatedBy: "-")
+            .filter { $0 != "" }
+            .joined(separator: "-")
+    }
+}