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(* TyXML
* http://www.ocsigen.org/tyxml
* Copyright (C) 2018 Gabriel Radanne
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, with linking exception;
* either version 2.1 of the License, or (at your option) any later version.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1301, USA.
*)
type name = string * string
(** Input *)
type signal = [
| `Comment of string
| `End_element
| `Start_element of name * (name * string) list
| `Text of string list
]
exception Malformed_stream
module Import
(Xml : Xml_sigs.T)
= struct
let of_list l =
List.fold_right
(fun a b -> Xml.W.(cons (return a) b))
l (Xml.W.nil ())
let mk_attribs attrs =
(* TODO: This is not very structured *)
let f ((_,name), v) = Xml.string_attrib name (Xml.W.return v) in
List.map f attrs
let rec mk children (seq : signal Seq.t) = match seq () with
| Cons (`Comment s, q) ->
mk (Xml.comment s :: children) q
| Cons (`Text s, q) ->
mk (List.map (fun x -> Xml.pcdata @@ Xml.W.return x) s @ children) q
| Cons (`Start_element ((_, name), attrs), q) ->
let a = mk_attribs attrs in
let sub_children, rest = mk [] q in
mk (Xml.node ~a name sub_children :: children) rest
| Cons (`End_element, rest) ->
of_list (List.rev children), rest
| Nil ->
of_list (List.rev children), Seq.empty
let of_seq seq =
let l, rest = mk [] seq in
match rest () with
| Seq.Nil -> l
| _ -> raise Malformed_stream
end
|
