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  1. %{
  2. 	int v=0;
  3. 	int c=0;
  4. %}
  5. %%
  6. [aeiouAEIOU] { v++; }
  7. [a-zA-Z] { c++; }
  8. "\n" {printf(" no of vowels are : %d\n",v);
  9. v=0;
  10. printf("no of consonants :%d\n",c);
  11. c=0;
  12. }
  13. %%
  14. int main()
  15. {
  16. 	printf("enter string");
  17. 	yylex();
  18. 	return 0;
  19. }
  20. int yywrap()
  21. {
  22. 	return 1;
  23. }
  24.  
Success #stdin #stdout #stderr 0.03s 6952KB
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stdin
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the rock
stdout
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Standard output is empty
stderr
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ERROR: /home/JWu2u7/prog:23:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/Prd8CN
language:
Prolog (swi 7.6.4)
created:
10 hours ago
visibility:
public

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