/* @(#)gen_rr_matrix.c	2.1 93/05/19 */
 
/******************************************************************************/
/* function    : gen_rr_matrix.c                                              */
/*                                                                            */
/* subsystem   : chgen                                                        */
/*                                                                            */
/* input       : <none>                                                       */
/*                                                                            */
/* output      : <none> (fills store_into_matrix)                             */
/*                                                                            */
/* returns     : void                                                         */
/*                                                                            */
/* author      : Cheng                                                        */
/*                                                                            */
/* created     : July, 1991                                                   */
/*                                                                            */
/* revisions   : 93s523: Changed to work with variable size table abbrevs.    */
/*    11/30/00 : kmiu  : NT port: included prototypes.h                       */
/*    11/30/00 : kmiu  : Removed unreferenced variables                       */
/*                                                                            */
/* description : This routine initializes the PINDEX matrix, sets up an       */
/*               initial path_history, and invokes gen_path.                  */
/*                                                                            */
/******************************************************************************/


#include <stdio.h>
#include <ctype.h>
#include "chgen_define.h"
#include "chgen_externs.h"
#include "prototypes.h"

void gen_rr_matrix ( )
{
	static char rcsid[] = "$Id: gen_rr_matrix.c,v 1.2.4.1 1999/05/04 17:00:04 jkarner Exp $";
        char parent_abbrev[ABBREV_NAME_LENGTH],child_abbrev[ABBREV_NAME_LENGTH];
        char path_history[TABLE_NO_LIMIT * 4 + 1] ;
             /* multiply 4 because each tab_abbrev_name can be 4 char,ex "AAAA".
                plus 1 , for the null char of path_history.   */

        struct rr_type *curr_ptr ;
        int i , j , x , y ,m,n;

        /* initialize PINDEX */
        for ( i = 0 ; i < MAXTABLES ; i++)
                for( j = 0 ; j < MAXTABLES ; j++ )
                {
                        PINDEX[i][j].PathIsUnique = 0 ;
                }

        curr_ptr = cp_table ;
        while (curr_ptr != NULL)
        {
	  for(m=0;m < hcg_abbr_size; m++)
	    path_history[m] = curr_ptr->firstid[m];
	  for(n=0; n < hcg_abbr_size; n++, m++)
	    path_history[m] = curr_ptr->secondid[n];
	  path_history[m] = '\0';    /* mark the end of path history */


                /* save child_name and parent_name used later as parameters for gen_path */
	  
	        strncpy_null(child_abbrev, curr_ptr->firstid, hcg_abbr_size);
	        strncpy_null(parent_abbrev, curr_ptr->secondid, hcg_abbr_size);

                /* get the matrix index x and y */
                TXindex = encoding ( child_abbrev ) ;
                x = TINDEX[TXindex].TTindex ;
                TXindex = encoding ( parent_abbrev ) ;
                y = TINDEX[TXindex].TTindex ;

                store_into_matrix(x, y, 1, path_history);

                gen_path ( path_history, child_abbrev,
                           parent_abbrev ) ;

                curr_ptr = curr_ptr->next_ptr ;
        }

    return;

}