read.cpp

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

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

        FILECONTENTS *fc = (FILECONTENTS *) 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 = (FRONT*)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 = (POINT*)realloc(f->points, sizeof(POINT) * f->nPoints);
                        f->n = 0;
                        f->points[point].objectives = NULL;
                        f->points[point].tnode = (avl_node_t*) malloc(sizeof(avl_node_t));
                        char *tok = strtok(line, " \t\n");
                        do
                        {
                                POINT *p = &f->points[point];
                                objective = f->n;
                                f->n++;
                                p->objectives = (OBJECTIVE*) 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;
}