!636

//!* constructors

//!class JavaTok

!L<S>

!quicknew

!standard functions

//!multi-line strings

!699 // improved multi-line strings

!include #1000353 // class JavaTok

main {

  static Object in;

  static new (Hash)Map<String, Function> functions;

  interface Function {

    public Object process(Object[] args);

  }

  static class Call {

    String function;

    String[] args;

    Object eval() {

      return functions.get(function).process(args);

    }

    public String toString() {

      new StringBuilder buf;

      for (int i = 0; i < args.length; i++) {

        if (i != 0) buf.append(", ");

        buf.append(quote(args[i]));

      }

      return function + "(" + buf + ")";

    }

  }

  psvm {

    in = [[contains("<all iois>", "<latest ioi>")]];

    parseAsJavaExpression();

    replaceStringConstant("<all iois>", "#681");

    replaceStringConstant("<latest ioi>", "#1000384");

    loadSnippetID1();

    // replace contains(x, y) with contains(toLines(x), y)

    // use standard function "contains(List, Object)"

    functions.put("contains", new Function() {

      public Object process(Object[] args) {

        return toLinesTrim((String) args[0]).contains(args[1]);

      }

    });

    System.out.println("Result: " + ((Call) in).eval());

  }

  static void parseAsJavaExpression() {

    L<S> tok = JavaTok.split((String) in);

    new Call c;

    c.function = tok.get(1);

    c.args = new String[] { unquote(tok.get(5)), unquote(tok.get(9)) };

    in = c;

  }

  static void replaceStringConstant(String before, String now) {

    Call c = (Call) in;

    new Call c2;

    c2.function = c.function;

    c2.args = new String[c.args.length];

    for (int i = 0; i < c.args.length; i++)

      c2.args[i] = c.args[i].equals(before) ? now : c.args[i];

    in = c2;

  }

  static void loadSnippetID1() tex {

    Call c = (Call) in;

    new Call c2;

    c2.function = c.function;

    c2.args = new String[c.args.length];

    System.arraycopy(c.args, 0, c2.args, 0, c.args.length);

    for (int i = 0; i < c.args.length; i++)

      if (c.args[i].startsWith("#") && isSnippetID(c.args[i])) {

        c2.args[i] = loadSnippet(c.args[i]);

        break;

      }

    in = c2;

  }

}