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  1. %{
  2.   #include <stdio.h>
  3.   int vowels = 0;
  4.   int consonents = 0;
  5. %}
  6. %%
  7. [aeiouAEIOU] vowels++;
  8. [a-zA-Z] consonents++;
  9. . ;
  10. %%
  11. void main(){
  12.   yyin = fopen("input.txt","r");
  13.   yylex();
  14.   printf("This file contains \n%d vowels, \n%d consonents",vowels,consonents);
  15. }
  16. int yywrap(){return(1);}
Success #stdin #stdout #stderr 0.03s 6924KB
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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/Ajxem6/prog:2:3: Syntax error: Operator expected
ERROR: /home/Ajxem6/prog:16:23: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/m1Hxxg
language:
Prolog (swi 7.6.4)
created:
8 days ago
visibility:
public

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