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  1. %{
  2. #include <stdio.h>
  3. int yywrap(void) {
  4.     return 1;
  5. }
  6. %}
  7.  
  8. %%
  9. [0-9]+ { printf("Number found\n"); } // Adding curly braces for clarity and consistency.
  10.  
  11. %%
  12. int main() {
  13.     yylex();
  14.     return 0;
  15. }
  16.  
  17.  
Success #stdin #stdout #stderr 0.03s 6824KB
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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/JWLDib/prog:2:1: Syntax error: Operator expected
ERROR: /home/JWLDib/prog:16:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/nZOToe
language:
Prolog (swi 7.6.4)
created:
6 days ago
visibility:
public

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