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  1. %{
  2.   int vow_count=0;
  3.   int const_count=0;
  4. %}
  5.  
  6. %%
  7. [aeiouAEIOU]{vow_count++;}
  8. [a-zA-Z]{const_count++;}
  9. %%
  10.  
  11. main(){
  12.   printf("enter the string");
  13.   yylex();
  14.   printf("vowel is: %d/n",vow_count);
  15.   printf("const is: %d/n",const_count);
  16.   return 0;
  17.  
  18. }
Success #stdin #stdout #stderr 0.02s 6968KB
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stdin
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aevir
stdout
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Standard output is empty
stderr
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ERROR: /home/zA7Xg6/prog:18:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/3Gi2IU
language:
Prolog (swi 7.6.4)
created:
237 days ago
visibility:
public

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