#ident "$URL: svn://elmer/devel/SVN/SDDAS/trunk/libCfg/CfgPath.c $ %D% SwRI"

#include <memory.h>
#include <string.h>
#include "libCfg.h"
#include "libCfg_local.h"

/*
 * StrHier     Source - node in the Projects tree for start of query
 * SDDAS_CHAR *item   - string for query
 * SDDAS_INT   level  - level in tree to add directory node names
 *
 * Return a static character string to a data path defined by the item value.  Additional
 * path information is added based on the parent name of the Source.  The number of
 * path names added is dependent upon the level.
 */

SDDAS_CHAR *CfgPath (StrHier Source, SDDAS_CHAR *item, SDDAS_INT level)
{
   StrHier S;
   static SDDAS_CHAR path [256];
   SDDAS_CHAR *p;
   int i, j;

   if ((p = CfgItem (Source, item, 0)) == NULL)
      return NULL;

   memset (path, 0, 256);
   strcpy (path, p);
   if (path [strlen (path)-1] != '%')
   {
      for (i = 0, S = Source; StrHierParent (S); S = StrHierParent (S), i++);
      i--;
      for (; --level >= 0;)
      {
         strcat (path, "/");
         strcat (path, SNAME (S));
         for (j = --i, S = Source; j >= 0; S = StrHierParent (S), j--);
      }
   }
   else
      path [strlen (path)-1] = '\0';

   return path;
}