/usr/share/doc/cppo/examples/lexer.mll is in cppo 1.3.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | (* Warning: ocamllex doesn't accept cppo directives
within the rules section. *)
rule token = parse
['a'-'z']+ { `String (Lexing.lexeme lexbuf) }
{
#ifndef NOFOO
let foo () = ()
#endif
}
|