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  1. %option noyywrap
  2. %{
  3. #include <stdio.h>
  4. %}
  5. %%
  6. ^[ \t]*//.*$            { printf("Comment line (//)\n"); }
  7.  
  8. .*\n                   { printf("Not a comment line\n"); }
  9. %%
  10. int main(){ yylex(); return 0; }
  11.  
Success #stdin #stdout #stderr 0.04s 6876KB
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stdin
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//ji
stdout
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Standard output is empty
stderr
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ERROR: /home/VgOWsn/prog:10:32: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? [Illegal port specification]
   Exception: (3) program ? EOF: exit
https://ideone.com/80yuxA
language:
Prolog (swi 7.6.4)
created:
1 day ago
visibility:
public

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