https://git.ruby-lang.org/ruby.git/commit/?id=ef74483594

From ef7448359478a04d67a4a406cca1c8442b5e2f94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@r...>
Date: Sat, 26 Dec 2020 14:45:57 +0900
Subject: tool/strip-rdoc.rb: optimize

This script is called from Doxygen many times.  Worth optimising.
[ci skip]
---
 tool/strip-rdoc.rb | 30 +++++++++---------------------
 1 file changed, 9 insertions(+), 21 deletions(-)

diff --git a/tool/strip-rdoc.rb b/tool/strip-rdoc.rb
index 0ac9c39..d8e311c 100755
--- a/tool/strip-rdoc.rb
+++ b/tool/strip-rdoc.rb
@@ -1,26 +1,14 @@ https://github.com/ruby/ruby/blob/trunk/tool/strip-rdoc.rb#L1
 #!ruby
+# frozen_string_literal: true
 
 # Filter for preventing Doxygen from processing RDoc comments.
 # Used by the Doxygen template.
 
-ARGF.binmode
-source = ARGF.read
-source = source.gsub(%r{/\*([!*])((?!\*/).+?)\*/}m) do |comment|
-  marker, comment = $1, $2
-  next "/**#{comment}*/" unless /^\s*\*\s?\-\-\s*$/ =~ comment
-  doxybody = nil
-  comment.each_line do |line|
-    if doxybody
-      if /^\s*\*\s?\+\+\s*$/ =~ line
-        break
-      end
-      doxybody << line
-    else
-      if /^\s*\*\s?--\s*$/ =~ line
-        doxybody = "\n"
-      end
-    end
-  end
-  "/*#{marker}#{doxybody}*/"
-end
-print source
+print ARGF.binmode.read.tap {|src|
+  src.gsub!(%r|(/\*[!*])(?:(?!\*/).)+?^\s*\*\s?\-\-\s*$(.+?\*/)|m) {
+    marker = $1
+    comment = $2
+    comment.sub!(%r|^\s*\*\s?\+\+\s*$.+?(\s*\*/)\z|m, '\\1')
+    marker + comment
+  }
+}
-- 
cgit v1.1


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