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  1. %{
  2. #include <stdio.h>
  3. #include <stdlib.h>
  4.  
  5. #undef yywrap  
  6. #define yywrap() 
  7. %}
  8.  
  9. %%
  10.  
  11. [0-9]+      { printf("%s\n", yytext); }  
  12. .|\n        { }
  13.  
  14. %%
  15.  
  16. int main() {
  17.     yylex();  
  18.     return 0;
  19. }
  20.  
  21.  
Success #stdin #stdout #stderr 0.02s 6888KB
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stdin
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a1b22c3
stdout
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Standard output is empty
stderr
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ERROR: /home/NNwrIk/prog:20:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/mDeqvP
language:
Prolog (swi 7.6.4)
created:
11 days ago
visibility:
public

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