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  1. %{
  2. #include <stdio.h>
  3. int wordCount = 0;
  4. %}
  5.  
  6. %%
  7. [a-zA-Z]+ {
  8.     wordCount++;
  9. }
  10. . ;
  11.  
  12. %%
  13.  
  14. int main() {
  15.     yylex();
  16.     printf("Number of words: %d\n", wordCount);
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout #stderr 0.02s 6940KB
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stdin
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hello how are you
stdout
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Standard output is empty
stderr
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ERROR: /home/5jURz5/prog:2:1: Syntax error: Operator expected
ERROR: /home/5jURz5/prog:18:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/OX69mk
language:
Prolog (swi 7.6.4)
created:
29 days ago
visibility:
public

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