matita/components/binaries/mac/lexer.mll

   1 {
   2    module O = Options
   3
   4    let out s = if !O.debug_lexer then prerr_endline s
   5 }
   6
   7 let OL  = "(*"
   8 let CL  = "*)"
   9 let UNI = ['\x80'-'\xBF']+
  10 let SPC = ['\r' '\n' '\t' ' ']+
  11 let QT  = '"'
  12
  13 rule token = parse
  14    | OL     { out "COM"; block lexbuf; token lexbuf                     }
  15    | QT     { out "STR"; O.count := !O.count + str lexbuf; token lexbuf }
  16    | SPC    { out "SPC"; incr O.count; token lexbuf                     }
  17    | UNI    { out "UNI"; token lexbuf                                   }
  18    | _      { out "CHR"; incr O.count; token lexbuf                     }
  19    | eof    { out "EOF"                                                 }
  20 and str = parse
  21    | QT     { 2 }
  22    | "\\\"" { succ (str lexbuf)                                         }
  23    | UNI    { str lexbuf                                                }
  24    | _      { succ (str lexbuf)                                         }
  25 and block = parse
  26    | CL     { ()                                                        }
  27    | OL     { block lexbuf; block lexbuf                                }
  28    | QT     { let _ = str lexbuf in block lexbuf                        }
  29    | _      { block lexbuf                                              }