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  1. %{
  2. #include <stdio.h>
  3.  
  4. int line_count = 0;
  5. int char_count = 0;
  6. %}
  7.  
  8. %%
  9. \n     { line_count++; char_count++; }
  10. .      { char_count++; }
  11. %%
  12.  
  13. int yywrap() {
  14.     return 1;
  15. }
  16.  
  17. int main() {
  18.     printf("Enter text (Ctrl+Z to end on Windows, Ctrl+D on Unix):\n");
  19.     yylex();
  20.  
  21.     printf("\nNumber of lines: %d\n", line_count);
  22.     printf("Number of characters: %d\n", char_count);
  23.  
  24.     return 0;
  25. }
Success #stdin #stdout #stderr 0.02s 6736KB
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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/pCEdCV/prog:2:1: Syntax error: Operator expected
ERROR: /home/pCEdCV/prog:25:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/CXnIge
language:
Prolog (swi 7.6.4)
created:
2 days ago
visibility:
public

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