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parsing.c
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parsing.c
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#include "parsing.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
void parsing(int argc, char *argv[], int *NumofChildren, char **DataFile, char **sorting1, char **sorting2)
{
int i, flagi = 0, flagk = 0, flage1 = 0, flage2 = 0;
for (i = 1; i < argc; i++) // check each user argument
{
if (strcmp(argv[i], "-i") == 0) // if flag is -i
{
flagi = 1;
if (argv[i + 1] != NULL)
{
*DataFile = argv[i + 1]; // set Datafile in main
}
else
{
printf("Sorry Wrong Input!Try Again!\n"); // user need to provide a filename after flag -i
exit(-1);
}
}
else if (strcmp(argv[i], "-k") == 0) // if flag is -k
{
flagk = 1;
if (argv[i + 1] != NULL)
{
*NumofChildren = atoi(argv[i + 1]); // set number of NumofChildren in main
char *check = argv[i + 1];
strtol(check, &check, 10);
if (*check != '\0')
{
printf("Sorry Wrong Input,children must be an integer!\n");
exit(-1);
}
}
else
{
printf("Sorry Wrong Input!Try Again!\n"); // user needs to provide number of NumOfChildren after flag -k
exit(-1);
}
}
else if (strcmp(argv[i], "-e1") == 0)
{ // if flag is sorting algorithm 1 -e1
flage1 = 1;
if (argv[i + 1] != NULL)
{
*sorting1 = argv[i + 1];
}
else
{
printf("Sorry Wrong Input!Try Again!\n"); // user needs to provide a name of sorting algorithm 1
exit(-1);
}
}
else if (strcmp(argv[i], "-e2") == 0)
{
flage2 = 1;
if (argv[i + 1] != NULL)
{
*sorting2 = argv[i + 1];
}
else
{
printf("Sorry Wrong Input!Try Again!\n"); // user needs to provide a name of sorting algorithm 2
exit(-1);
}
}
}
if (flagi == 0 || flagk == 0 || flage1 == 0 || flage2 == 0)
{
printf("Sorry Wrong Input!Try Again!\n"); // user needs to provide both flag -i flag -k flag -e1 flag -e2
exit(-1);
}
}