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  1. %%
  2. if|else|for|while|do|switch {
  3.     printf("Valid Control Structure: %s\n", yytext);
  4. }
  5. .* ;
  6. %%
  7. int main() {
  8.     yylex();
  9.     return 0;
  10. }
Success #stdin #stdout #stderr 0.03s 6932KB
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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/r41pVk/prog:10:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/AYnjeK
language:
Prolog (swi 7.6.4)
created:
11 hours ago
visibility:
public

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