//    WantMore.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.*;

public class WantMore {
  public static void main(String[] unused) throws Exception {
    // Some lines of text to process....
    String[] s = new String[]{
      "Some uncommented stuff /* and some commented\r\n",
      "stuff.\r\n",
      "Some short\r\n",
      "and wasteful\r\n",
      "lines. */  Yet more uncommented stuff.\r\n",
      "And even a bit more.\r\n"
    };

    Transformer t = new Transformer(true);

    // We want to replace comments with just /* comment */
    t.add("s'/\\*[\\d\\D]*\\*/'/* comment */'");

    // If the above complete rule failed, but "/*" matches, then we know
    // that we saw the beginning of a comment and must wait
    // for more text to be read in before the match can succeed.
    // So we use WANT_MORE_TEXT to tell RegexWriter to wait.
    t.add("s'/\\*'$WANT_MORE_TEXT'");

    // Just some inane rule to apply outside of comments for
    // the sake of an example.  Surrounds all words with angle
    // brackets.
    t.add("s/\\w+/<$&>/");

    // Let RegexWriter do its stuff, getting help from WANT_MORE_TEXT.
    OutputStreamWriter osw = new OutputStreamWriter(System.out);
    RegexWriter rw = new RegexWriter(t,osw);
    for(int i=0;i<s.length;i++)
      rw.write(s[i],0,s[i].length());
    rw.flush();
  }
}