Answer Posted / sandeep ambekar

//
// MAIN -- Write a program for deleting duplicate elements in an array
// Example: # a.out string substr
// I/P example: ./a.out Bangalore a
//
// Author -- Sandeep Ambekar

#include <stdio.h>
#define TRUE 1
#define FALSE 0

void
purge_char_from_string (char *str, char *c)
{
int i, k, flag, count; // i/j for index, flag to
keep track of
// 'c' and count for iteration..
char *buf = str; // save the original string
start:
str = buf; // we could enter the loop
again.
i = 0;
k = 1;
count = 0;
flag = FALSE; // INIT variables...
printf ("Input String [%s] [%c] \n", str, *c);

while (str[i] != '\0')
{
printf ("\t (%c) <==> (%c)\n", str[i], str[k]);
if (str[i] == c[0])
{
str[i] = str[k];
flag = TRUE;
count++;
}
else if (flag == TRUE)
{
str[i] = str[k]; // later have a while loop
to find a char
// to which is !c and replace them.
}
i++;
k++;
}
printf ("[%s]\n", buf);
if ((count - 1) >= 1)
goto start;
} // end of
purge_char_from_string ....

//
// MAIN -- Program to Purge a given character from a string.
//

int
main (int argc, char *argv[])
{
if (argc < 3)
{
printf ("Input <String> <char> \n");
return 1;
}
printf (" ## Input string %s : Char [%s]\n", argv[1],
argv[2]);
purge_char_from_string (argv[1], argv[2]);

printf (" Trimmed String ---> %s\n", argv[1]);
return 0;
}

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