From b410fd16b76146f4116538c5b82330818dd47da9 Mon Sep 17 00:00:00 2001
From: Christian Cleberg <hello@cleberg.net>
Date: Fri, 7 Aug 2026 02:45:31 -0500
Subject: Add multi-language syntax highlighting (#16)

Splash (Swift-only, since removed) left code rendering unhighlighted
everywhere. Add Highlightr (highlight.js) behind a small SyntaxHighlighter
service and use it on both surfaces:

- Native file viewer: highlight NSAttributedString by language inferred
  from the filename, picking a light/dark theme from the trait style and
  re-highlighting on style changes. Falls back to plain text for unknown
  languages or very large files.
- Markdown/org code blocks in the WKWebView (READMEs, tickets, comments):
  the web view disables JavaScript, so highlight server-side into inline
  color-styled spans. The color scheme is now part of the render/cache
  key since colors are baked into the HTML.

Covered by unit tests for language mapping and highlighted output.
---
 Hutch.xcodeproj/project.pbxproj                         | 17 +++++++++++++++++
 .../xcshareddata/swiftpm/Package.resolved               | 11 ++++++++++-
 2 files changed, 27 insertions(+), 1 deletion(-)

(limited to 'Hutch.xcodeproj')

diff --git a/Hutch.xcodeproj/project.pbxproj b/Hutch.xcodeproj/project.pbxproj
index b7ddbe9..b6c7301 100644
--- a/Hutch.xcodeproj/project.pbxproj
+++ b/Hutch.xcodeproj/project.pbxproj
@@ -17,6 +17,7 @@
 		8B2FA9D12F7E211800E609E2 /* paste.json in Resources */ = {isa = PBXBuildFile; fileRef = 8B2FA9C92F7E211800E609E2 /* paste.json */; };
 		8B2FA9D22F7E211800E609E2 /* todo.json in Resources */ = {isa = PBXBuildFile; fileRef = 8B2FA9CA2F7E211800E609E2 /* todo.json */; };
 		8B2FA9D32F7E211800E609E2 /* lists.json in Resources */ = {isa = PBXBuildFile; fileRef = 8B2FA9C72F7E211800E609E2 /* lists.json */; };
+		8BAA000000000000000000B0 /* Highlightr in Frameworks */ = {isa = PBXBuildFile; productRef = 8BAA000000000000000000B2 /* Highlightr */; };
 		8BE082012F80000100000001 /* HutchWidgetExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 8BE081F62F80000100000001 /* HutchWidgetExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		8BE083012F81000100000001 /* HutchSafariExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 8BE083032F81000100000001 /* HutchSafariExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		8BF100032F9A000100000001 /* Markdown in Frameworks */ = {isa = PBXBuildFile; productRef = 8BF100022F9A000100000001 /* Markdown */; };
@@ -148,6 +149,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				8BF100032F9A000100000001 /* Markdown in Frameworks */,
+				8BAA000000000000000000B0 /* Highlightr in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -252,6 +254,7 @@
 			name = Hutch;
 			packageProductDependencies = (
 				8BF100022F9A000100000001 /* Markdown */,
+				8BAA000000000000000000B2 /* Highlightr */,
 			);
 			productName = Hutch;
 			productReference = 8B4B28D12F6704280045FA19 /* Hutch.app */;
@@ -358,6 +361,7 @@
 			minimizedProjectReferenceProxies = 1;
 			packageReferences = (
 				8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */,
+				8BAA000000000000000000B3 /* XCRemoteSwiftPackageReference "Highlightr" */,
 			);
 			preferredProjectObjectVersion = 77;
 			productRefGroup = 8B4B28D22F6704280045FA19 /* Products */;
@@ -871,6 +875,14 @@
 /* End XCConfigurationList section */
 
 /* Begin XCRemoteSwiftPackageReference section */
+		8BAA000000000000000000B3 /* XCRemoteSwiftPackageReference "Highlightr" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/raspu/Highlightr";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 2.1.0;
+			};
+		};
 		8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/apple/swift-markdown";
@@ -882,6 +894,11 @@
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
+		8BAA000000000000000000B2 /* Highlightr */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 8BAA000000000000000000B3 /* XCRemoteSwiftPackageReference "Highlightr" */;
+			productName = Highlightr;
+		};
 		8BF100022F9A000100000001 /* Markdown */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */;
diff --git a/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index 417e4d7..a268436 100644
--- a/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -1,6 +1,15 @@
 {
-  "originHash" : "65542d8a5fbbad8dd7d07c8901c1cc48b3aba12cef8da1f062bd28d9b3a6ba50",
+  "originHash" : "4554417ca2693020116bce7cbda415a5e51ada6b4cc4a8b39f7f43a9644bb5e5",
   "pins" : [
+    {
+      "identity" : "highlightr",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/raspu/Highlightr",
+      "state" : {
+        "revision" : "05e7fcc63b33925cd0c1faaa205cdd5681e7bbef",
+        "version" : "2.3.0"
+      }
+    },
     {
       "identity" : "swift-cmark",
       "kind" : "remoteSourceControl",
-- 
cgit v1.2.3