read.c

#include "wfg.h"
#include "avl.h"

static void
trimLine (char line[])
{
  int i = 0;

  while (line[i] != '\0')
    {
      if (line[i] == '\r' || line[i] == '\n')
	{
	  line[i] = '\0';
	  break;
	}
      i++;
    }
}

void
printContents (FILECONTENTS * f)
{
  for (int i = 0; i < f->nFronts; i++)
    {
      printf ("Front %d:\n", i + 1);
      for (int j = 0; j < f->fronts[i].nPoints; j++)
	{
	  printf ("\t");
	  for (int k = 0; k < f->fronts[i].n; k++)
	    {
	      printf ("%f ", f->fronts[i].points[j].objectives[k]);
	    }
	  printf ("\n");
	}
      printf ("\n");
    }
}

FILECONTENTS *
readFile (char filename[])
{
  FILE *fp;
  char line[BUFSIZ];
  int front = 0, point = 0, objective = 0;

  FILECONTENTS *fc = malloc (sizeof (FILECONTENTS));
  fc->nFronts = 0;
  fc->fronts = NULL;

  fp = fopen (filename, "r");
  if (fp == NULL)
    {
      fprintf (stderr, "File %s could not be opened\n", filename);
      exit (EXIT_FAILURE);
    }

  while (fgets (line, sizeof line, fp) != NULL)
    {
      trimLine (line);
      if (strcmp (line, "#") == 0)
	{
	  front = fc->nFronts;
	  fc->nFronts++;
	  fc->fronts = realloc (fc->fronts, sizeof (FRONT) * fc->nFronts);
	  fc->fronts[front].nPoints = 0;
	  fc->fronts[front].points = NULL;
	}
      else
	{
	  FRONT *f = &fc->fronts[front];
	  point = f->nPoints;
	  f->nPoints++;
	  f->points = realloc (f->points, sizeof (POINT) * f->nPoints);
	  f->n = 0;
	  f->points[point].objectives = NULL;
	  f->points[point].tnode = malloc (sizeof (avl_node_t));
	  char *tok = strtok (line, " \t\n");
	  do
	    {
	      POINT *p = &f->points[point];
	      objective = f->n;
	      f->n++;
	      p->objectives =
		realloc (p->objectives, sizeof (OBJECTIVE) * f->n);
	      p->objectives[objective] = atof (tok);
	    }
	  while ((tok = strtok (NULL, " \t\n")) != NULL);
	}
    }

  fc->nFronts--;
  // for (int i = 0; i < fc->nFronts; i++) fc->fronts[i].n = fc->fronts[i].points[0].nObjectives;
  fclose (fp);
  /* printf("Read %d fronts\n", fc->nFronts);
     printContents(fc); */
  return fc;
}