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  1. { 
  2. #include <stdio.h> 
  3. int vowels = 0, consonants = 0; 
  4. %} 
  5.  
  6. %% 
  7.  
  8. [aAeEiIoOuU]        { vowels++; }     
  9. [b-df-hj-np-tv-zB-DF-HJ-NP-TV-Z] { consonants++; }   
  10. \n                    
  11. { return 0; }   
  12. .    
  13. {} 
  14.  
  15. %% 
  16.  
  17. int main() { 
  18.     printf("Enter a string: "); 
  19.     fflush(stdout);   
  20.     yylex();   
  21.     printf("Number of vowels: %d\n", vowels); 
  22.     printf("Number of consonants: %d\n", consonants); 
  23.     return 0; 
  24. } 
  25.  
Success #stdin #stdout #stderr 0.02s 7020KB
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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/5aVpvy/prog:2:0: Syntax error: Operator expected
ERROR: /home/5aVpvy/prog:24:2: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/aDe9dX
language:
Prolog (swi 7.6.4)
created:
22 days ago
visibility:
public

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