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  1. %{ 
  2. #include <stdio.h> 
  3. %} 
  4. %% 
  5. [0-9]+      
  6. { printf("Token: %s --> DIGIT\n", yytext); } 
  7. [a-zA-Z]+   { printf("Token: %s --> CHARACTER\n", yytext); } 
  8. [ \t\n]+    
  9. .        
  10. %% 
  11. { } 
  12.    { printf("Token: %s --> UNKNOWN\n", yytext); } 
  13. int main() { 
  14. printf("Enter input:\n"); 
  15. yylex(); 
  16. return 0; 
  17. }
Success #stdin #stdout #stderr 0.03s 7008KB
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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/lSEjZJ/prog:2:1: Syntax error: Operator expected
ERROR: /home/lSEjZJ/prog:17:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/e80fHv
language:
Prolog (swi 7.6.4)
created:
24 days ago
visibility:
public

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