fork download
  1. %{
  2. #include<stdio.h>
  3. int vow=0, con=0;
  4. %}
  5. %%
  6. [ \t\n]+ ;
  7. [aeiouAEIOU]+ {vow++;}
  8. [^aeiouAEIOU] {con++;}
  9. end return 0;
  10. %%
  11. int main( )
  12. {
  13. printf("Enter some input string:\n");
  14. yylex();
  15. printf("Number of vowels=%d\n",vow);
  16. printf("Number of consonants=%d\n",con);
  17. }
  18. int yywrap( )
  19. {
  20. return 1;
  21. }
Success #stdin #stdout #stderr 0.04s 6900KB
stdin
Standard input is empty
stdout
Standard output is empty
stderr
ERROR: /home/lyp0t1/prog:21:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit