#!/usr/bin/env ocaml

#load "str.cma";;

let concat_file_parts l =
  String.concat "." l;;

let change_ext name ext =
  let old_parts = String.split_on_char '.' name in
  match List.rev old_parts with
  | [] -> ""
  | [old_name] -> concat_file_parts [old_name; ext]
  | _ :: tl ->
    concat_file_parts (ext :: tl |> List.rev);;

let html_files =
  Sys.readdir "."
  |> Array.to_list
  |> List.filter (function el -> Str.last_chars el 4 = ".htm");;

let cmd file =
  let adoc = change_ext file "adoc" in
  "lynx -dump " ^ file ^ " | gsed -f _cmds > " ^ adoc;;

let gen_adoc file =
  let shell_cmd = cmd file in
  print_string shell_cmd;
  print_newline ();

  if (Sys.command shell_cmd) > 0 then begin
    print_string("Failed cmd for " ^ file);
    print_newline ();
  end
  ;;

let gen_adocs files =
  List.iter gen_adoc files;
  ;;

let () =
  (* print_string (change_ext "x1.erb.html" "haml"); *)
  (* print_newline (); *)
  (* print_string (cmd "ch1.htm"); *)
  (* print_newline (); *)
  gen_adocs html_files;
  ;;