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  1. %{
  2. int a=0;
  3. %}
  4. %%
  5. [a-z|A-Z|_][a-z|A-Z|0-9|_]* {a++;}
  6. %%
  7. int yywrap()
  8. {
  9. return 1;
  10. }
  11. int main()
  12. {
  13.    yylex();
  14.    printf("\nidentifiers are%d,a");
  15.    return 0;
  16. }
Success #stdin #stdout #stderr 0.02s 6928KB
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Standard input is empty
stdout
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Standard output is empty
stderr
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ERROR: /home/kVDQmx/prog:16:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/HxO99b
language:
Prolog (swi 7.6.4)
created:
11 days ago
visibility:
public

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