1 (* Wrapper around Perl HTML::Element class.
2 * Copyright (C) 2003 Merjis Ltd.
3 * $Id: pl_HTML_Element.ml,v 1.3 2003-10-15 16:51:12 rich Exp $
8 let _ = eval "use HTML::Element"
10 type 'a content_t = Element of 'a | String of string
12 class html_element sv =
14 let rec assocs_of_svlist = function
16 | [x] -> failwith "HTML::Element all_attr returned odd-length list!"
17 | svname :: svvalue :: xs ->
18 (string_of_sv svname, string_of_sv svvalue) :: assocs_of_svlist xs
21 let rec list_of_svlist = function
24 string_of_sv sv :: list_of_svlist xs
32 string_of_sv (call_method sv "attr" [sv_of_string name])
33 method set_attr name value =
34 call_method_void sv "attr" [sv_of_string name; sv_of_string value]
36 string_of_sv (call_method sv "tag" [])
38 call_method_void sv "tag" [sv_of_string tag]
40 let sv = call_method sv "parent" [] in
42 method set_parent (parent : html_element) =
43 call_method_void sv "parent" [parent#sv]
45 let svlist = call_method_array sv "content_list" [] in
48 (* Not very satisfactory, but sv_type fails to discern the type
49 * for some reason. XXX
51 let str = string_of_sv c in
52 let marker = "HTML::Element=HASH(" in
53 let marker_len = String.length marker in
54 if String.length str > marker_len &&
55 String.sub str 0 marker_len = marker then
56 Element (new html_element c)
58 String (string_of_sv c)
61 let svlist = call_method_array sv "all_attr" [] in
62 assocs_of_svlist svlist
63 method all_attr_names =
64 let svlist = call_method_array sv "all_attr_names" [] in
66 method all_external_attr =
67 let svlist = call_method_array sv "all_external_attr" [] in
68 assocs_of_svlist svlist
69 method all_external_attr_names =
70 let svlist = call_method_array sv "all_external_attr_names" [] in
75 (* Note that "new" is a reserved word, so I've appended an _ character. *)
77 let rec loop = function
79 | (name, value) :: xs -> sv_of_string name :: sv_of_string value :: loop xs
81 let sv = call_class_method "HTML::Element" "new"
82 (sv_of_string tag :: loop attrs) in