Write a C program which does wildcard pattern matching algorithm.

Here is an example C program...


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

int wildcard(char *string, char *pattern);

int main()
{
char *string = "hereheroherr";
char *pattern = "*hero*";

if(wildcard(string, pattern)==TRUE)
{
printf("\nMatch Found!\n");
}
else
{
printf("\nMatch not found!\n");
}
return(0);
}

int wildcard(char *string, char *pattern)
{
while(*string)
{
switch(*pattern)
{
case '*': do {++pattern;}while(*pattern == '*');
if(!*pattern) return(TRUE);
while(*string){if(wildcard(pattern,string++)==TRUE)return(TRUE);}
return(FALSE);
default : if(*string!=*pattern)return(FALSE); break;
}
++pattern;
++string;
}

while (*pattern == '*') ++pattern;
return !*pattern;
}