fork download 
  1.  
  2. %{
  3. #include<stdio.h>
  4. #include<string.h>
  5. int i = 0;
  6. %}
  7.  
  8. %%
  9. ([a-zA-Z0-9])+   { i++; }
  10. "\n"             { printf("%d\n", i); i = 0; }
  11. %%
  12.  
  13. int yywrap(void) { }
  14.  
  15. int main()
  16. {
  17.     yylex();
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout #stderr 0.02s 6928KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
ERROR: /home/MXkyvm/prog:19:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/jefEYo
language:
Prolog (swi 7.6.4)
created:
3 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!