fork download
copy 
  1. %{
  2. #include <stdio.h>
  3. #include <stdlib.h>
  4. #include <string.h>
  5. %}
  6. %%
  7. [0-9a-zA-Z._%+-]+@[0-9a-zA-Z.-]+\.[a-zA-Z]{2,} { printf("It is valid"); }
  8. .|\n {printf("It is invalid")}
  9. %% 
  10. int main() {
  11.     printf("Enter an email address: ");
  12.     yylex();
  13.     return 0;
  14. }
Success #stdin #stdout #stderr 0.03s 6924KB
comments (?)
stdin
copy 
abdul@gmail.com
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/j5yX5b/prog:14:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/E2jjxU
language:
Prolog (swi 7.6.4)
created:
8 days 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!