%{
#include <stdio.h>
int financial_count = 0;
%}
 
%%
finance|money|investment|stock|market|economy|profit|loss|revenue|asset|liability|income|expense|balance|credit|debit|transaction|cash|account|bank|loan|currency|budget { financial_count++; }
.           ; /* ignore all other characters */
 
%%
 
int main(int argc, char *argv[]) {
    yyin = fopen(argv[1], "r");
    yylex();
    printf("Financial keyword count: %d\n", financial_count);
    if (financial_count >= 5) {
        printf("The document is likely financial.\n");
    } else {
        printf("The document is not likely financial.\n");
    }
    return 0;
}
 

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