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  1. %{
  2. int vowelCount = 0;
  3. int consonantCount = 0;
  4. %}
  5.  
  6. %%
  7. [aAeEiIoOuU]   { vowelCount++; }
  8. [a-zA-Z]       { consonantCount++; }
  9. .              ;
  10.  
  11. %%
  12.  
  13. int main() {
  14.     yylex();
  15.     printf("Vowels: %d\n", vowelCount);
  16.     printf("Consonants: %d\n", consonantCount);
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout #stderr 0.03s 6824KB
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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/vDI9uo/prog:2:4: Syntax error: Operator expected
ERROR: /home/vDI9uo/prog:18:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/ok0dAj
language:
Prolog (swi 7.6.4)
created:
325 days ago
visibility:
public

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