fork download
copy 
  1. %%
  2. ^[ab]*abb$ {printf("valid string : %s\n", yytext);}
  3. .          {printf("invalid string: %s\n", yytext);}
  4. %%
  5. int yywrap() { return 1; }
  6. int main(){
  7.     yylex();
  8.     return 0;
  9. }
  10.  
Success #stdin #stdout #stderr 0.03s 6972KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/5EkxAL/prog:2:1: Syntax error: Operator expected
ERROR: /home/5EkxAL/prog:9:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/QjBgRt
language:
Prolog (swi 7.6.4)
created:
16 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!