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  1. %{
  2. #include <stdio.h>
  3. int vow = 0, con = 0;
  4. %}
  5.  
  6. %%
  7. [aeiouAEIOU]   { vow++; }
  8. [a-zA-Z]       { con++; }
  9. %%
  10.  
  11. int yywrap() { return 1; }
  12.  
  13. int main() {
  14.     printf("Enter some input: ");
  15.     yylex();
  16.     printf("\nNo. of vowels = %d\n", vow);
  17.     printf("No. of consonants = %d\n", con);
  18.     return 0;
  19. }
Success #stdin #stdout #stderr 0.03s 6816KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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ERROR: /home/D3nzVY/prog:19:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/sah252
language:
Prolog (swi 7.6.4)
created:
12 hours ago
visibility:
public

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