1	/** *****************************************************
     2	*  Rewraps the string (Similar to the Unix fmt).
     3	*  Given a string S, eliminate existing CRs and add CRs to the
     4	*  closest spaces before column N.  Two CRs in a row are considered to
     5	*  be "hard CRs" and are left alone.
     6	********************************************************* */
     7	
     8	static final char CR = '\n';
     9	static final int inWord      = 0;
    10	static final int betweenWord = 1;
    11	static final int lineBreak   = 2;
    12	static final int crFound     = 3;
    13	static private String fmtRewrap (String S, int N)
    14	{
    15	   int state = betweenWord;
    16	   int lastSpace = -1;
    17	   int col = 1;
    18	   int i = 0;
    19	   char c;
    20	
    21	   char SArr [] = S.toCharArray();
    22	   while (i < S.length())
    23	   {
    24	      c = SArr[i];
    25	      col++;
    26	      if (col >= N)
    27	         state = lineBreak;
    28	      else if (c == CR)
    29	         state = crFound;
    30	      else if (c == ' ')
    31	         state = betweenWord;
    32	      else
    33	         state = inWord;
    34	      switch (state)
    35	      {
    36	      case betweenWord:
    37	         lastSpace = i;
    38	         break;
    39	 
    40	      case lineBreak:
    41	         SArr [lastSpace] = CR;
    42	         col = i-lastSpace;
    43	         break;
    44	 
    45	      case crFound:
    46	         if (i+1 < S.length() && SArr[i+1] == CR)
    47	         {
    48	            i++; // Two CRs => hard return
    49	            col = 1;
    50	         }
    51	         else
    52	            SArr[i] = ' ';
    53	         break;
    54	 
    55	      case inWord:
    56	      default:
    57	         break;
    58	      }  // end switch
    59	        i++;
    60	   }  // end while
    61	   S = new String (SArr) + CR;
    62	   return (S);
    63	}