j 9.5.2

The `livecheck` block checks the upstream Installation wiki page but
this only lists major/minor release versions. To identify subsequent
patch versions (e.g., 9.5.2), we have to check the download page for
a given release, which links to dmg files like `j9.5.2_mac64.zip`.

Casks/j/j.rb

@@ -1,8 +1,8 @@
 cask "j" do
-  version "9.5"
+  version "9.5.2"
   sha256 "78efb1db5423939e776f0053ff074a5c641b376e0517ded04773e38c001609c5"
 
-  url "https://www.jsoftware.com/download/j#{version}/install/j#{version}_mac64.zip"
+  url "https://www.jsoftware.com/download/j#{version.major_minor}/install/j#{version}_mac64.zip"
   name "J"
   desc "Programming language for mathematical, statistical and logical analysis of data"
   homepage "https://www.jsoftware.com/"
@@ -14,7 +14,19 @@
 
   livecheck do
     url "https://code.jsoftware.com/wiki/System/Installation"
-    regex(/Jv?(\d+(?:\.\d+)+)\srelease/i)
+    regex(/Jv?(\d+(?:\.\d+)+)\s+release/i)
+    strategy :page_match do |page, regex|
+      # Identify partial release version (e.g., J1.2) on installation page
+      release = page.scan(regex)
+                    .flatten
+                    .max_by { |v| Version.new(v) }
+      next if release.blank?
+
+      # Fetch the release install page (containing full versions like 1.2.3)
+      install_page = Homebrew::Livecheck::Strategy.page_content("https://www.jsoftware.com/download/j#{release}/install/")
+      install_page[:content]&.scan(/href=.*?j[._-]?v?(\d+(?:\.\d+)+)[._-]mac/i)
+                            &.map { |match| match[0] }
+    end
   end
 
   installer script: "j#{version}/macos-fix.command"