//USMarcToJava



// Basic USMarc translation support for Java

// This script takes USMarc.py as an input, and generates

// USMarc.java with similar fucntionality.



import java.io.*;

import java.util.Hashtable;





public class USMarcToJava {



  private static File filein;

  private static File fileout;

  private static FileInputStream fin;

  private static FileOutputStream fout;

  private static DataInputStream hin;

  private static DataOutputStream hout;

  private static PrintStream hhout;

  private static String status;

  private static Hashtable kUSMarc = new Hashtable();



  public USMarcToJava () {

    status = "About to begin";

  }



  private static void WriteHeadOutFile () {

    hhout.println("// USMarc.java");

    hhout.println("import java.util.Hashtable;");

    hhout.println("");

    hhout.println("// Basic USMarc translation support for Java");

    hhout.println("// Automatically generated by usmartojava.java from USMarc.py file");

    hhout.println("");

    hhout.println("public class USMarc {");

    hhout.println("  private Hashtable kUSMarc = new Hashtable();");

    hhout.println("  private Hashtable USMarc = new Hashtable();");

    hhout.println("  private Hashtable gEnglish2USMarc = new Hashtable();");

    hhout.println("");

    hhout.println("  public USMarc() {");

    hhout.println("");

    return;

  }



  private static void WriteTailOutFile () {

    hhout.println("    return;");

    hhout.println("  }");

    hhout.println("");

    hhout.println("  public String USMarc2English (String pField) {");

    hhout.println("    return (((String[])USMarc.get(pField))[0]);");

    hhout.println("  }");

    hhout.println("");

    hhout.println("  public String USMarc2LongEnglish (String pField) {");

    hhout.println("    return (((String[])USMarc.get(pField))[1]);");

    hhout.println("  }");

    hhout.println("");

    hhout.println("  public String English2USMarc (String pField) {");

    hhout.println("    pField = pField.toLowerCase();");

    hhout.println("    return ((String)gEnglish2USMarc.get(pField));");

    hhout.println("  }");

    hhout.println("  ");

    hhout.println("  public String[] USMarc2English (String[] pFields) {");

    hhout.println("    String[] aux = new String[pFields.length];");

    hhout.println("    ");

    hhout.println("    for(int i=0;i<pFields.length;i++)");

    hhout.println("      aux[i] = this.USMarc2English(pFields[i]);");

    hhout.println("  ");

    hhout.println("      return aux;");

    hhout.println("  }");

    hhout.println("}");

    return;

  }



  private static String GenerateOutput(String input)

                                                throws Exception {

    String aux = "";

    String codename = "";

    String codenumber = "";



    if ( status.equals("gEnglish table") ) {

      if( input.startsWith("import") ) {

        status = "end";

      } else {

        status = "gEnglish table";

      }

      if ( input.startsWith("#") ) {

        return "nothing";

      } else if ( input.equals("")) {

        return "nothing";

      }

      aux = "    gEnglish2USMarc.put(\"";

      int pos = input.indexOf("'");

      int pos2 = input.lastIndexOf("'");

      if (pos2 != -1) {

        codename = input.substring(pos + 1,pos2);

      } else {

        return "nothing";

      }

      aux = aux.concat(codename);

      aux = aux.concat("\",\"");

      pos = input.indexOf("=");

      codenumber = input.substring(pos + 2,input.length());

      try {

      String codenumber2 = (String) kUSMarc.get(codenumber);

      aux = aux.concat(codenumber2);

      }

      catch (java.lang.NullPointerException e) {

        pos = codenumber.indexOf(" ");

        codenumber = codenumber.substring(0,pos);

        codenumber = (String) kUSMarc.get(codenumber);

        aux = aux.concat(codenumber);

      }

      aux = aux.concat("\");");

      return aux;

    }



    if ( status.equals("USMarc table") ) {

      if( input.startsWith("gEnglish2USMarc") ) {

        status = "gEnglish table";

      } else {

        status = "USMarc table";

      }

      if ( input.startsWith("#") ) {

        return "nothing";

      } else if ( input.equals("")) {

        return "nothing";

      }

      aux = "    USMarc.put(\"";

      int pos = input.indexOf("[");

      int pos2 = input.lastIndexOf("]");

      if (pos2 != -1) {

        codename = input.substring(pos + 1,pos2);

        codename = (String) kUSMarc.get(codename);

      } else {

        return "nothing";

      }

      aux = aux.concat(codename);

      aux = aux.concat("\",e");

      aux = aux.concat(codename);

      pos = input.indexOf("(");

      pos2 = input.lastIndexOf(")");

      codenumber = input.substring(pos + 1,pos2);

      pos = codenumber.indexOf(",");

      String elem1 = codenumber.substring(1,pos -1);

      String elem2 = codenumber.substring(pos +3,codenumber.length() - 1);

      String before = "    String[] e";

      before = before.concat(codename);

      before = before.concat(" = new String[2];\n");

      before = before.concat("    e");

      before = before.concat(codename);

      before = before.concat("[0] = \"");

      before = before.concat(elem1);

      before = before.concat("\";\n    e");

      before = before.concat(codename);

      before = before.concat("[1] = \"");

      before = before.concat(elem2);

      before = before.concat("\";\n");

      aux = aux.concat(");");

      before = before.concat(aux);

      return before;

    }



    if ( status.equals("About to begin") ||

         status.equals("kUSMarc table") ) {

      // Output equals Input until we get a line that doesn't begin with

      // "#" and it is not an empty line

      if ( input.startsWith("## --------------") ) {

        status = "USMarc table";

      } else {

        status = "kUSMarc table";

      }

      if ( input.startsWith("#") ) {

        return "nothing";

      } else if ( input.equals("")) {

        return "nothing";

      }

      aux = "    kUSMarc.put(\"";

      int pos = input.indexOf(" ");

      int pos2 = input.lastIndexOf("'");

      if (pos2 != -1) {

        codename = input.substring(0,pos);

        codenumber = input.substring((pos +4),pos2);

      } else {

        codename = input.substring(0,pos);

        codenumber = input.substring((pos +3),input.length());

        codenumber = (String)kUSMarc.get(codenumber);

      }

      aux = aux.concat(codename);

      aux = aux.concat("\",\"");

      aux = aux.concat(codenumber);

      aux = aux.concat("\");");

      kUSMarc.put(codename,codenumber);

      return aux;

    }

    return input;

  }



  public static void main (String[] args) {



    int debug;



    if ( args.length > 0 ) {

        debug = 1;

    } else {

        debug = 0;

    }



    filein = new File("USMarc.py");

    fileout = new File("USMarc.java");



    if ( !filein.exists() || !filein.canRead() ) {

      System.out.println("Can't read USMarc.py");

      return;

    }



    status = "About to begin";

    try {

      fin = new FileInputStream(filein);

      fout = new FileOutputStream(fileout);



      hin = new DataInputStream(fin);

      hout = new DataOutputStream(fout);

      hhout = new PrintStream((OutputStream)hout, true);



      WriteHeadOutFile();



      String input = hin.readLine();

      String output = "";

      while ((input != null) && !(status.equals("end")) ) {

        if ( debug == 1) {

          System.out.println(input);

          System.out.println("STATUS = " + status);

        }

        output = GenerateOutput(input);

        if ( !output.equals("nothing") ) 

          hhout.println(output);

        input = hin.readLine();

      }

      System.out.println("End of File");



      WriteTailOutFile();



      hhout.flush();

      fin.close();

      fout.close(); 

    }

    catch (Exception e) {

      System.out.println("Exception: " + e);

    }

  }

}