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  1. %{
  2.   #include<stdio.h>
  3.   %}
  4.  
  5.   %%
  6. [a-zA-Z0-9]*x  {printf("found 'x' %s\n",yytext);}
  7. .|\n   { } 
  8. %%
  9.  
  10. int main(){
  11.   yylex();
  12.   return 0;
  13. }
Success #stdin #stdout #stderr 0.02s 6852KB
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stdin
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xhh
stdout
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Standard output is empty
stderr
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ERROR: /home/9EbSaS/prog:13:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/KXdEo9
language:
Prolog (swi 7.6.4)
created:
3 days ago
visibility:
public

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