//    UncontinF77.java by Steven R. Brandt
//    <p>
//    An example file distributed with com.stevesoft.pat
//    and com.stevesoft.pat.apps
//    <p>
//    This software comes without express or implied warranty.
//    No claim is made about the suitability of this software for
//    any purpose and neither I nor SteveSoft shall be liable for
//    damages suffered by the user of this software.
import com.stevesoft.pat.*;
import java.io.*;

// Fortran 77 is certainly a painful language to read
// for java, C++, or even C programmers.  The language
// was designed around the concept of the punch-card and
// what column you are on matters.  This means that lines
// have a maximum length of 72 characters (the last 8 are
// automatically comments).  To get around this limit,
// the compiler counts any line beginning with 5 spaces
// followed by a non-space character to be a continuation
// of the previous line.  This toy program "uncontinues"
// a line of F77 by removing the string "\n     ." from
// the file.  This is an example of a multi-line rule.
//
// Unfortunately for us scientists, we are often forced
// to use F77 because it often gets optimized the best.
// Frequently, it is assumed that we like F77.  Would
// someone please implement high-performance java?

public class UncontinF77 {
  public static void main(String[] s) {
    try {
      Regex r = new Regex("\r?\n {5}\\S[ \t]*"," ");
      OutputStreamWriter osw = new OutputStreamWriter(System.out);
      RegexWriter rw = new RegexWriter(r,osw);
      PrintWriter pw = new PrintWriter(rw);
      pw.println("      This is an f77-style");
      pw.println("     & continued");
      pw.println("     & line.");
      pw.println("      RegexWriter can easily");
      pw.println("     & make remove the continuation");
      pw.println("     & thing.");
      pw.close();
    } catch(Exception e) {
      e.printStackTrace();
    }
  }
}