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  1. %{ 
  2. #include <stdio.h> int vowels = 0, consonants = 0; 
  3. %}  
  4. %% 
  5. [aeiouAEIOU]    { vowels++; } 
  6. [a-zA-Z]        { consonants++; } 
  7. .               { /* ignore */ } 
  8. %% 
  9.  
  10. int yywrap() { return 1; } 
  11.  
  12. int main() {     printf("Enter text (Ctrl+Z to end):\n");     yylex();     printf("Vowels: %d\nConsonants: %d\n", vowels, consonants); 
  13.     return 0; 
  14. } 
  15.  
Success #stdin #stdout #stderr 0.03s 6864KB
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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/NM1hfk/prog:2:1: Syntax error: Operator expected
ERROR: /home/NM1hfk/prog:14:2: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/FjoYDD
language:
Prolog (swi 7.6.4)
created:
10 hours ago
visibility:
public

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