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  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6.  
  7. "hello" { printf("Hello, World!\n"); }
  8. .|\n { /* Ignore other characters */ }
  9.  
  10. %%
  11.  
  12. int main() {
  13. yylex(); // Start the lexical analysis
  14. return 0;
  15. }
  16.  
Success #stdin #stdout #stderr 0.02s 6908KB
stdin
Standard input is empty
stdout
Standard output is empty
stderr
ERROR: /home/bGfNCO/prog:15:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit