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  1. %{
  2. #include <stdio.h>
  3. #include <stdlib.h>
  4. %}
  5.  
  6. %%
  7. [0-9]+      { printf("NUMBER: %s\n", yytext); }
  8. [-+*/()]   { printf("OPERATOR/BRACKET: %s\n", yytext); }
  9. \n          { /* Ignore newlines */ }
  10. [ \t]       { /* Ignore spaces and tabs */ }
  11. .           { printf("Invalid character: %s\n", yytext); }
  12.  
  13. %%
  14.  
  15. int main() {
  16.     yylex();
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout #stderr 0.04s 6876KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
ERROR: /home/2DVga0/prog:2:1: Syntax error: Operator expected
ERROR: /home/2DVga0/prog:18:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/LdlDLB
language:
Prolog (swi 7.6.4)
created:
2 years ago
visibility:
public

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