From e0f1fb54a32a6eecda5d54b5f71344c75f7f44e6 Mon Sep 17 00:00:00 2001
From: Daeho Ro <40587651+daeho-ro@users.noreply.github.com>
Date: Wed, 27 Aug 2025 16:17:24 +0900
Subject: [PATCH] feat: update pod2man normalize

---
 Library/Homebrew/keg.rb | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index 0e909bf74d..4117411047 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -563,7 +563,7 @@ class Keg
 
   def normalize_pod2man_outputs!
     # Only process uncompressed manpages, which end in a digit
-    manpages = Dir[path/"share/man/*/*.[1-9]"]
+    manpages = Dir[path/"share/man/*/*.[1-9]{,p,pm}"]
     generated_regex = /^\.\\"\s*Automatically generated by .*\n/
     manpages.each do |f|
       manpage = Pathname.new(f)
@@ -581,15 +581,30 @@ class Keg
 
       content = content.gsub(generated_regex, "")
       content = content.lines.map do |line|
-        next line unless line.start_with?(".TH")
+        if line.start_with?(".TH")
+          # Split the line by spaces, but preserve quoted strings
+          parts = line.split(/\s(?=(?:[^"]|"[^"]*")*$)/)
+          next line if parts.length != 6
 
-        # Split the line by spaces, but preserve quoted strings
-        parts = line.split(/\s(?=(?:[^"]|"[^"]*")*$)/)
-        next line if parts.length != 6
+          # pod2man embeds the perl version used into the 5th field of the footer
+          parts[4]&.gsub!(/^"perl v.*"$/, "\"\"")
+          # man extension remove in man files
+          parts[2]&.gsub!(/([1-9]){,p,pm}/, "\\1")
 
-        # pod2man embeds the perl version used into the 5th field of the footer
-        T.must(parts[4]).gsub!(/^"perl v.*"$/, "\"\"")
-        "#{parts.join(" ")}\n"
+          "#{parts.join(" ")}\n"
+        elsif line.start_with?(".IX")
+          # Split the line by spaces, but preserve quoted strings
+          parts = line.split(/\s(?=(?:[^"]|"[^"]*")*$)/)
+          next line if parts.length != 3
+          next line if parts[1] != "Title"
+
+          # man extension remove in man files
+          parts[2]&.gsub!(/\s+([1-9]){,p,pm}/, "\\1")
+
+          "#{parts.join(" ")}\n"
+        else
+          line
+        end
       end.join
 
       manpage.atomic_write(content)