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  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6.  
  7. "/*".*"*/"      { printf("Multiline comment: %s\n", yytext); }
  8. "//".*           { printf("Single-line comment: %s\n", yytext); }
  9. .|\n             { /* Ignore other characters */ }
  10.  
  11. %%
  12.  
  13. int main() {
  14.     yylex();
  15.     return 0;
  16. }
  17.  
  18. int yywrap() {
  19.     return 1;
  20. }
  21.  
Success #stdin #stdout #stderr 0.02s 6936KB
comments (?)
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/xTCgvZ/prog:20:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/D2Fqdx
language:
Prolog (swi 7.6.4)
created:
6 hours ago
visibility:
public

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