Source file `html5.ml`

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(*********************************************************************************)
(*                Stog                                                           *)
(*                                                                               *)
(*    Copyright (C) 2012-2024 INRIA All rights reserved.                         *)
(*    Author: Maxence Guesdon, INRIA Saclay                                      *)
(*                                                                               *)
(*    This program is free software; you can redistribute it and/or modify       *)
(*    it under the terms of the GNU General Public License as                    *)
(*    published by the Free Software Foundation, version 3 of the License.       *)
(*                                                                               *)
(*    This program is distributed in the hope that it will be useful,            *)
(*    but WITHOUT ANY WARRANTY; without even the implied warranty of             *)
(*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the               *)
(*    GNU General Public License for more details.                               *)
(*                                                                               *)
(*    You should have received a copy of the GNU General Public                  *)
(*    License along with this program; if not, write to the Free Software        *)
(*    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA                   *)
(*    02111-1307  USA                                                            *)
(*                                                                               *)
(*    As a special exception, you have permission to link this program           *)
(*    with the OCaml compiler and distribute executables, as long as you         *)
(*    follow the requirements of the GNU GPL in regard to all of the             *)
(*    software in the executable aside from the OCaml compiler.                  *)
(*                                                                               *)
(*    Contact: Maxence.Guesdon@inria.fr                                          *)
(*                                                                               *)
(*********************************************************************************)


module XR = Xtmpl.Rewrite

let void_tags =
  List.fold_right Types.Str_set.add
    [ "area" ; "base" ; "br" ; "col" ; "embed" ; "hr" ; "img" ; "input" ;
      "keygen" ; "link" ; "meta" ; "param" ; "source" ; "track" ; "wbr" ;
    ]
    Types.Str_set.empty
;;

let is_void_tag t = Types.Str_set.mem t void_tags;;

let hack_self_closed =
  let rec iter xml =
    match xml with
      XR.D _ -> xml
    | XR.E ({ XR.name = ("", tag) ; atts ; subs = [] } as node) 
          when not (is_void_tag tag) ->
        XR.E { node with XR.subs = [XR.cdata ""] }
    | XR.E node ->
        XR.E { node with XR.subs = List.map iter node.XR.subs }
    | XR.PI _ | XR.C _ -> xml
  in
  iter
;;