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  1. %{
  2. #include <stdio.h>;
  3. %}
  4. %%
  5. if|else|while|int|switch|for|char    {printf("keyword");}
  6. [a-z]([a-z]|[0-9])*    {printf("identifier");}
  7. [0-9]*        {printf("number");}
  8. .*    {printf("invalid");}
  9. %%
  10. main()
  11. {
  12. yylex();
  13. return 0;
  14. }
  15. int yywrap()
  16. {
  17. }
  18.  
Success #stdin #stdout #stderr 0.02s 6980KB
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stdin
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6573
stdout
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Standard output is empty
stderr
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ERROR: /home/9diVSz/prog:18:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/TP8u60
language:
Prolog (swi 7.6.4)
created:
1 year ago
visibility:
public

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