package net.nixill;

public class Quine {
  static final String SOURCE_CODE =
"package net.nixill;\n"+
"\n"+
"public class Quine {\n"+
"  static final String SOURCE_CODE =\n"+
"\"%s\";\n"+
"  \n"+
"  public static String escape(String in) {\n"+
"    in = in.replaceAll(\"\\\\\\\\\", \"\\uE000\")\n"+
"           .replaceAll(\"\\\\\\\"\", \"\\\\\\\\\\\\\\\"\")\n"+
"           .replaceAll(\"\\n\", \"\\\\\\\\n\\\\\\\"+\\\\\\n\\\\\\\"\")\n"+
"           .replaceAll(\"\\uE000\", \"\\\\\\\\\\\\\\\\\");\n"+
"    return in;\n"+
"  }\n"+
"  \n"+
"  public static void main(String[] args) {\n"+
"    System.out.print(String.format(SOURCE_CODE, escape(SOURCE_CODE)));\n"+
"  }\n"+
"}";

  public static String escape(String in) {
    in = in.replaceAll("\\\\", "\uE000")
           .replaceAll("\\\"", "\\\\\\\"")
           .replaceAll("\n", "\\\\n\\\"+\\\n\\\"")
           .replaceAll("\uE000", "\\\\\\\\");
    return in;
  }

  public static void main(String[] args) {
    System.out.print(String.format(SOURCE_CODE, escape(SOURCE_CODE)));
  }
}