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  1. %{
  2. int newline = 0, tab = 0, space = 0, ch = 0;
  3. %}
  4. %%
  5. \n {newline++;}
  6. \t {tab++;}
  7. " " {space++;}
  8. . {ch++;}
  9. %%
  10. int yywrap(){
  11.  return 1;
  12. }
  13. int main(){
  14.  yylex();
  15.  printf("Number of newlines: %d\n", newline);
  16.  printf("Number of tabs: %d\n", tab);
  17.  printf("Number of spaces: %d\n", space);
  18.  printf("Number of other characters: %d\n", ch);
  19.  return 0;
  20. }
Success #stdin #stdout #stderr 0.03s 6760KB
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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/Nncd2t/prog:2:4: Syntax error: Operator expected
ERROR: /home/Nncd2t/prog:20:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/kOb7pa
language:
Prolog (swi 7.6.4)
created:
14 hours ago
visibility:
public

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