1 files changed, 17 insertions, 0 deletions
diff --git a/tool/serb.rb b/tool/serb.rb
new file mode 100644
index 0000000000..edba8966c7
--- /dev/null
+++ b/tool/serb.rb
@@ -0,0 +1,17 @@
+def serb(str, var)
+  result = ''
+  str.each_line {|line|
+    if /\A!/ =~ line
+      result << $'
+    else
+      line.split(/(<%.*?%>)/).each {|x|
+        if /\A<%(.*)%>\z/ =~ x
+          result << "#{var} << (#{$1}).to_s\n"
+        else
+          result << "#{var} << #{x.dump}\n"
+        end
+      }
+    end
+  }
+  result
+end