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  1. %{
  2. #include<stdio.h>
  3. int tabs=0,spaces=0,newline=0,character=0;
  4. %}
  5. %%
  6. [\t] tabs++;
  7. [" "] spaces++; 
  8. [\n] newline++;
  9. [^\n\t" "] character++;
  10. %%
  11. int yywrap(){ 
  12. return 1;
  13. }
  14. int main(){ 
  15. printf("Enter here\n"); 
  16. yylex();
  17. printf("Tabs::%d\n",tabs); 
  18. printf("Spaces::%d\n",spaces); 
  19. printf("Characters::%d\nLines::%d\n",character,newline);
  20. }
  21.  
Success #stdin #stdout #stderr 0.03s 6988KB
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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/uBs0j3/prog:20:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/C9UZsu
language:
Prolog (swi 7.6.4)
created:
11 days ago
visibility:
public

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