is" with "was
".Using the string methods that we have learned so far, write a program that will allow the user to type in line of text until the user types in the phrase "The end" on a line by itself. The program will replace every occurrence of "is" with the string "was" and count the number of changes made.
You may choose to use c-style strings or the string
class. You can find them describes in C
Lecture #4.
You may find the following functions useful; you may use them in the assignment (Remember to put their prototypes at the top of the program):
int strindex(char s[], char t[])
{
int i, j, k;
for (i = 0; s[i] != '\0'; i++) {
for (j = i, k = 0;
t[k] != '\0' && s[j] == t[k];
j++, k++)
;
if (k > 0 && t[k] == '\0')
return(i);
}
return(-1);
}
void substring(char t[], char s[], int start, int len) {
int i, j, k;
for (i = start, j = 0; j < len && s[i] != '\0'; i++, j++)
t[j] = s[i];
t[j] = '\0';
}