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  1. %{
  2.  #include<stdio.h> 
  3.  int vcount=0;
  4.  int ccount=0;
  5. %}
  6.  
  7. %%
  8.   [aeiouAEIOU] {vcount++;}
  9.   [a-zA-Z]  {ccount++;}
  10.   . {}
  11. %%
  12. int main()
  13. {
  14.   printf("enter any input\n");
  15.   yylex();
  16.   printf("the number of vowels are %d",vcount);
  17.   printf("the number of consonants are %d",ccount);
  18.   return 0;
  19. }
  20. int yywrap()
  21. {
  22.   return 1;
  23. }
Success #stdin #stdout #stderr 0.02s 6788KB
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stdin
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hello aeio umsv
stdout
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Standard output is empty
stderr
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ERROR: /home/XHUM7b/prog:2:2: Syntax error: Operator expected
ERROR: /home/XHUM7b/prog:23:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/Rnwaf2
language:
Prolog (swi 7.6.4)
created:
12 hours ago
visibility:
public

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