fork download
copy 
  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6. ^[a-zA-Z0-9,_+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$ {printf("Valid email: %s\n", yytext);}
  7. ^.*$    {printf("Invalid email: %s\n", yytext);}
  8. %%
  9.  
  10. int main(){
  11.     printf("Enter the email: ");
  12.     yylex();
  13.     return 0;
  14. }
  15.  
  16. int yywrap(){
  17.     return 1;
  18. }
Success #stdin #stdout #stderr 0.02s 7004KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/QF2X9F/prog:18:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/hg4b9J
language:
Prolog (swi 7.6.4)
created:
1 day 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!