add mswin32_extmk.rb

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@523 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/mswin32_extmk.rb

@@ -0,0 +1,41 @@
+#!./miniruby
+
+def create_gsub_rb()
+  f = open("mswin32_gsub.rb", "w")
+  has_version = false
+  f.print 'f = open("extmk.rb", "w")', "\n"
+  f.print 'File.foreach "extmk.rb.in" do |$_|', "\n"
+  File.foreach "../config.status" do |$_|
+    next if /^#/
+    if /^s%@(\w+)@%(.*)%g/
+      name = $1
+      val = $2 || ""
+      next if name =~ /^(INSTALL|DEFS|configure_input|srcdir)$/
+      val = ".." if name == "top_srcdir"
+      val.gsub!(/\$\{([^{}]+)\}/) { "$(#{$1})" }
+      f.print "  gsub!(\"@#{name}@\", \"#{val}\")\n"
+      has_version = true if name == "MAJOR"
+    end
+  end
+  
+  if not has_version
+    VERSION.scan(/(\d+)\.(\d+)\.(\d+)/) {
+      f.print "  gsub!(\"@MAJOR@\", \"#{$1}\")\n"
+      f.print "  gsub!(\"@MINOR@\", \"#{$2}\")\n"
+      f.print "  gsub!(\"@TEENY@\", \"#{$3}\")\n"
+    }
+  end
+  f.print '  f.print $_', "\n"
+  f.print 'end', "\n"
+  f.print 'f.close', "\n"
+  f.close
+end
+
+begin
+  create_gsub_rb()
+  load "mswin32_gsub.rb"
+ensure
+  File.unlink "mswin32_gsub.rb"
+end
+
+# vi:set sw=2: