Win7下lex_与_yacc的安装配置(3)

delim [" "\n\t]

whitespace {delim}+

words {chars}+

%%

while {ECHO; printf("%s\n",yytext);}

{words} { wordCount++;

/* increase the word count by one*/ }

{whitespace} { /* do nothing*/ }

([0-9])+ { numcount++; /* one may want to add some processing here*/ }

%%

void main()

{

printf("ok1\n");

yylex(); /* start the analysis*/

printf("ok2\n");

printf(" No of words: %d\n number: %d\n", wordCount, numcount);

return 0;

}

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