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  1. %{
  2. #include<stdio.h>
  3. %}
  4.  
  5. %%
  6. "+"|"-"|"*"|"/"                    { printf("Arithmetic Operator: %s\n", yytext); }
  7. "="|"+="|"-="|"*="|"/="|"%="        { printf("Assignment Operator: %s\n", yytext); }
  8. "&"|"|"|"^"|"~"                    { printf("Bitwise Operator: %s\n", yytext); }
  9. "=="|"!="|"<"|">"|"<="|">="         { printf("Relational Operator: %s\n", yytext); }
  10. "<<"|">>"                           { printf("Shift Operator: %s\n", yytext); }
  11. "&&"|"||"|"!"                      { printf("Logical Operator: %s\n", yytext); }
  12. .|\n                               { /* Ignore other characters */ }
  13. %%
  14.  
  15. int main() {
  16.     yylex();
  17.     return 0;
  18. }
  19.  
  20. int yywrap() {
  21.     return 1;
  22. }
  23.  
Success #stdin #stdout #stderr 0.04s 6956KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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ERROR: /home/8R1rkc/prog:22:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/2eunvu
language:
Prolog (swi 7.6.4)
created:
14 hours ago
visibility:
public

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