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  1. %{
  2. #include.<studio.h>
  3.  
  4. %}
  5. %%
  6. . printf("hello class");
  7. [0-9]
  8.  
  9.  
  10. %%
  11. int yywrap()
  12. {
  13.  
  14. return 1;
  15.  
  16. }
  17. int main()
  18. {
  19.  
  20.  
  21. yylex();
  22. printf("hello class");
  23. return 0;
  24. }
Success #stdin #stdout #stderr 0.02s 6944KB
stdin
123
stdout
Standard output is empty
stderr
ERROR: /home/PnZ0t4/prog:2:1: Syntax error: Operator expected
ERROR: /home/PnZ0t4/prog:24:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit