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  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6.  
  7. .* { printf("Input: %s\n", yytext); }
  8.  
  9. %%
  10.  
  11. int main()
  12. {
  13. yylex();
  14. return 0;
  15. }
  16.  
  17. int yywrap()
  18. {
  19. return 1;
  20. }
Success #stdin #stdout #stderr 0.03s 6888KB
stdin
Standard input is empty
stdout
Standard output is empty
stderr
ERROR: /home/7RRhKb/prog:20:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit