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  1. %{
  2.   #include<stdio.h>
  3.  
  4. %}
  5. %%
  6. [\t]+ ;
  7. #.* { printf("\n%s is comment",yytext);}
  8. \n {ECHO;}
  9. %%
  10. int main(){
  11.   yylex();
  12.  
  13. }
  14. int yywrap(){
  15.   return 1;
  16. }
Success #stdin #stdout #stderr 0.02s 6976KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
ERROR: /home/HWLtIB/prog:16:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/CxQERw
language:
Prolog (swi 7.6.4)
created:
8 days ago
visibility:
public

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