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  1. %{
  2. #include <stdio.h>
  3. #include "y.tab.h"  // If used with yacc/bison, needed for token definitions
  4. %}
  5.  
  6. %%
  7.  
  8. "i"             { return ID; }
  9. "+"             { return PLUS; }
  10. "*"             { return MUL; }
  11. "("             { return LPAREN; }
  12. ")"             { return RPAREN; }
  13. [ \t\n]+        { /* skip whitespace */ }
  14. .               { printf("Invalid character: %s\n", yytext); }
  15.  
  16. %%
  17.  
  18. int yywrap() {
  19.     return 1;
  20. }
Success #stdin #stdout #stderr 0.03s 6956KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
ERROR: /home/vs1vTf/prog:2:1: Syntax error: Operator expected
ERROR: /home/vs1vTf/prog:20:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/bg824q
language:
Prolog (swi 7.6.4)
created:
11 days ago
visibility:
public

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