//  WordsBetter.java  (c) 2004 Kari Laitinen

//  http://www.naturalprogramming.com

//  2004-10-10  File created.
//  2004-12-19  Last modification.

//  This program is an enhanced version of the program
//  Words.java in Chapter 6. This program works more like
//  the corresponding programs in my C++ and C# books.

import java.util.* ;
import java.util.regex.* ;

class WordsBetter
{
   public static void main( String[] not_in_use )
   {
      Scanner  keyboard  =  new Scanner( System.in ) ;

      System.out.print( "\n This program separates the words of a"
                      + "\n sentence and prints them in wide form."
                      + "\n Type in a sentence.\n\n   " ) ;


      //  The Pattern.DOTALL flag specifies that also line-termination
      //  characters are matched by the regular expression "."

      Pattern match_all_characters  =  Pattern.compile( ".", 
                                                         Pattern.DOTALL ) ;

      String character_in_sentence  =  keyboard.findInLine( 
                                                  match_all_characters ) ;

      System.out.print( "\n  " ) ;

      while ( character_in_sentence.charAt( 0 )  !=  '\r' )
      {
         if ( character_in_sentence.charAt( 0 )  ==  ' ' )
         {
             System.out.print( "\n  " ) ;
         }
         else
         {
             System.out.print( " "  +  character_in_sentence ) ;
         }

         character_in_sentence  =  keyboard.findInLine(
                                                match_all_characters ) ;
      }
   }
}


/*  Multiline comment:

    findInLine() method ignores delimiters.

    The pattern specified by string "." means that any
    character is accepted

     "[\\d\\s]" would mean any digit or any whitespace character.

*/