1.3. Minimizing Rebuilds

When we run our program, we discover that aside from printing fees, fies, foes, and fums, it also prints text from the input file. This is not what we want. The problem is that we have forgotten some rules in our lexical analyzer and flex is passing this unrecognized text to its output. To solve this problem we simply add an "any character" rule and a newline rule:

        int fee_count = 0;
        int fie_count = 0;
        int foe_count = 0;
        int fum_count = 0;
%%
fee     fee_count++;
fie     fie_count++;
foe     foe_count++;
fum     fum_count++;
.
\n