fork download
copy 
  1. %{
  2.   #include<stdio.h>
  3.  
  4. %}
  5. %%
  6. a(a|b)*b   {printf("valid");}
  7. .*         {printf("Reject");}
  8. %%
  9. int main(){
  10.   printf("enter:");
  11.   yylex();
  12.  
  13. }
  14. int yywrap(){
  15.   return 1;
  16. }
Success #stdin #stdout #stderr 0.02s 6956KB
comments (?)
stdin
copy 
ab
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/DmnHv8/prog:16:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/JeU3Ha
language:
Prolog (swi 7.6.4)
created:
15 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!