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  1. LETTER [a-zA-Z]
  2. DIGIT [0-9]
  3. %%
  4. begin {printf("Recognized KeyWORD:%s\n",yytext);}
  5. if    {printf("Recognized KeyWORD:%s\n",yytext);}
  6. {LETTER}({LETTER}|{DIGIT})*{
  7.            printf("Recognized ID:%s\n",yytext);}
  8. %%
  9. main()
  10. {
  11. yylex();
  12. }
Success #stdin #stdout #stderr 0.02s 6872KB
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Standard input is empty
stdout
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Standard output is empty
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ERROR: /home/657mEG/prog:12:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/uq6GCh
language:
Prolog (swi 7.6.4)
created:
1 year ago
visibility:
public

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