chore: checkpoint current milestone work

2026-05-22 13:28:53 +08:00
parent 6d196d64e5
commit 5698aeaead
68 changed files with 5694 additions and 3291 deletions
@@ -57,6 +57,35 @@ public final class RDEPUBResourceResolver {
        return pathPart
    }

+    public func normalizedHref(_ href: String, relativeToHref baseHref: String) -> String? {
+        guard let opfDirectoryURL else {
+            return href.components(separatedBy: "#").first
+        }
+
+        let pathPart = href.components(separatedBy: "#").first ?? href
+        let basePath = baseHref.components(separatedBy: "#").first ?? baseHref
+        let baseURL = opfDirectoryURL
+            .appendingPathComponent(basePath)
+            .deletingLastPathComponent()
+
+        guard let resolvedURL = URL(string: pathPart, relativeTo: baseURL)?.standardizedFileURL else {
+            return pathPart
+        }
+
+        let opfPath = opfDirectoryURL.standardizedFileURL.path + "/"
+        if resolvedURL.path.hasPrefix(opfPath) {
+            return String(resolvedURL.path.dropFirst(opfPath.count))
+        }
+        return pathPart
+    }
+
+    public func fileURL(forReference href: String, relativeToHref baseHref: String) -> URL? {
+        guard let normalizedHref = normalizedHref(href, relativeToHref: baseHref) else {
+            return nil
+        }
+        return fileURL(forRelativePath: normalizedHref)
+    }
+
    public func normalizedLocation(
        _ location: RDEPUBLocation,
        relativeToSpineIndex spineIndex: Int? = nil,
@@ -122,4 +151,4 @@ public final class RDEPUBResourceResolver {
            normalizedHref($0.href) == targetHref
        }
    }
-}
+}