# Copyright 2012  Milos Janda
  
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #  http://www.apache.org/licenses/LICENSE-2.0
  #
  # THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
  # WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
  # MERCHANTABLITY OR NON-INFRINGEMENT.
  # See the Apache 2 License for the specific language governing permissions and
  # limitations under the License.
  
  #!/bin/awk -f
  
  {
      for (i=2; i<=NF; i++) {	
  	gsub("^0","_0",$i);
  	gsub("^1","_1",$i);
  	gsub("^2","_2",$i);
  	gsub("^3","_3",$i);
  	gsub("^4","_4",$i);
  	gsub("^5","_5",$i);
  	gsub("^6","_6",$i);
  	gsub("^7","_7",$i);
  	gsub("^8","_8",$i);
  	gsub("^9","_9",$i);
  	
  	gsub("@","_at",$i);
  	gsub("&","_amp",$i);
  	gsub("\\\\","_backs",$i);
  	gsub("{","_<",$i); 
  	gsub("}","_>",$i);
  
  	# post-processing :)
  	#gsub("__","_",$i);
      }
      print
  }