From: Takeyuki Fujioka <redmine@...>
Date: 2008-09-03T21:26:54+09:00
Subject: [ruby-dev:36130] [Bug #541] cgi.rb : obsolete regex "n" option

Bug #541: cgi.rb : obsolete regex "n" option
http://redmine.ruby-lang.org/issues/show/541

起票者: Takeyuki Fujioka
ステータス: Open, 優先度: Normal

CGI::prettyの正規表現部分にnが使われているので
warningが出ます。
Index: lib/cgi.rb
===================================================================
--- lib/cgi.rb	(リビジョン 19071)
+++ lib/cgi.rb	(作業コピー)
@@ -1245,14 +1245,14 @@
   #     # </HTML>
   #
   def CGI::pretty(string, shift = "  ")
-    lines = string.gsub(/(?!\A)<(?:.|\n)*?>/n, "\n\\0").gsub(/<(?:.|\n)*?>(?!\n)/n, "\\0\n")
+    lines = string.gsub(/(?!\A)<(?:.|\n)*?>/, "\n\\0").gsub(/<(?:.|\n)*?>(?!\n)/, "\\0\n")
     end_pos = 0
-    while end_pos = lines.index(/^<\/(\w+)/n, end_pos)
+    while end_pos = lines.index(/^<\/(\w+)/, end_pos)
       element = $1.dup
-      start_pos = lines.rindex(/^\s*<#{element}/ni, end_pos)
-      lines[start_pos ... end_pos] = "__" + lines[start_pos ... end_pos].gsub(/\n(?!\z)/n, "\n" + shift) + "__"
+      start_pos = lines.rindex(/^\s*<#{element}/i, end_pos)
+      lines[start_pos ... end_pos] = "__" + lines[start_pos ... end_pos].gsub(/\n(?!\z)/, "\n" + shift) + "__"
     end
-    lines.gsub(/^((?:#{Regexp::quote(shift)})*)__(?=<\/?\w)/n, '\1')
+    lines.gsub(/^((?:#{Regexp::quote(shift)})*)__(?=<\/?\w)/, '\1')
   end


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