fork download 
  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6. if|else|while|for   { printf("Keyword: %s\n", yytext); }
  7. [a-zA-Z_][a-zA-Z0-9_]* { printf("Identifier: %s\n", yytext); }
  8. [ \t\n]+           { /* ignore whitespace */ }
  9. .                  { printf("Unknown character: %s\n", yytext); }
  10. %%
  11.  
  12. int main() {
  13.     yylex();
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout #stderr 0.02s 6864KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
ERROR: /home/LQcW5g/prog:2:1: Syntax error: Operator expected
ERROR: /home/LQcW5g/prog:15:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/uLdgGz
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!