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  1. %option noyywrap
  2. %{
  3. #include <stdio.h>
  4. %}
  5.  
  6. %%
  7. "<h"[1-6]">"[^<]*"</h"[1-6]">"   { printf("HTML HEADER: %s\n", yytext); }
  8. .|\n                             ;   /* ignore everything else */
  9. %%
  10.  
  11. int main()
  12. {
  13.     yylex();
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout #stderr 0.02s 6844KB
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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/Q7W4tJ/prog:15:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/LuhU6k
language:
Prolog (swi 7.6.4)
created:
20 hours ago
visibility:
public

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