fork download
copy 
  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6.  
  7. if|else|break { printf("%s is a keyword\n", yytext); }
  8. [a-zA-Z_][a-zA-Z0-9_]* { printf("%s is an identifier\n", yytext); }
  9. .|\n { Echo; }
  10.  
  11. %%
  12.  
  13. int main() {
  14.     printf("Enter a C program: ");
  15.     yylex();
  16.     return 0;
  17. }
  18.  
  19. int yywrap() {
  20.     return 1;
  21. }
  22.  
Success #stdin #stdout #stderr 0.02s 6928KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/A81g4e/prog:21:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/gyulTG
language:
Prolog (swi 7.6.4)
created:
10 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!