lex program to find the largest words and its length

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lex code to find the largest words and its length 

***************************

%{

int wordlen = 0,i=0; char lwords[100][100];

%}

%option noyywrap

%%

[a-zA-Z]+ {


        if (yyleng > wordlen)

                       wordlen = yyleng;

        strcpy(lwords[i++],yytext);

        }

%%

int main() {

int j;

yylex();

printf("Maximum  length is %d ", wordlen);

printf("largest length words\n");

for ( j=0;j<i;j++)

 if(strlen(lwords[j])==wordlen)

    printf("%s\n",lwords[j]);

return 0;

}

Execution
flex lword.lex
$ gcc lex.yy.c
$ ./a.out
this is a program to find largest words from the input

Maximum  length is 7 largest length words
program
largest

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