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(*
* Xml Light, an small Xml parser/printer with DTD support.
* Copyright (C) 2003 Nicolas Cannasse (ncannasse@motion-twin.com)
*
* This library 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
(** Xml Light
Xml Light is a minimal Xml parser & printer for OCaml.
It provide few functions to parse a basic Xml document into
an OCaml data structure and to print back the data structures
to an Xml document.
Xml Light has also support for {b DTD} (Document Type Definition).
{i (c)Copyright 2002-2003 Nicolas Cannasse}
*)
open Serialize
(** {6 Xml Functions} *)
exception Not_element of xml
exception Not_pcdata of xml
exception No_attribute of string
(** [tag xdata] returns the tag value of the xml node.
Raise {!Xml.Not_element} if the xml is not an element *)
val tag : xml -> string
(** [pcdata xdata] returns the PCData value of the xml node.
Raise {!Xml.Not_pcdata} if the xml is not a PCData *)
val pcdata : xml -> string
(** [attribs xdata] returns the attribute list of the xml node.
First string if the attribute name, second string is attribute value.
Raise {!Xml.Not_element} if the xml is not an element *)
val attribs : xml -> (string * string) list
(** [attrib xdata "href"] returns the value of the ["href"]
attribute of the xml node (attribute matching is case-insensitive).
Raise {!Xml.No_attribute} if the attribute does not exists in the node's
attribute list
Raise {!Xml.Not_element} if the xml is not an element *)
val attrib : xml -> string -> string
(** [children xdata] returns the children list of the xml node
Raise {!Xml.Not_element} if the xml is not an element *)
val children : xml -> xml list
(*** [enum xdata] returns the children enumeration of the xml node
Raise {!Xml.Not_element} if the xml is not an element *)
(* val enum : xml -> xml Enum.t *)
(** [iter f xdata] calls f on all children of the xml node.
Raise {!Xml.Not_element} if the xml is not an element *)
val iter : (xml -> unit) -> xml -> unit
(** [map f xdata] is equivalent to [List.map f (Xml.children xdata)]
Raise {!Xml.Not_element} if the xml is not an element *)
val map : (xml -> 'a) -> xml -> 'a list
(** [fold f init xdata] is equivalent to
[List.fold_left f init (Xml.children xdata)]
Raise {!Xml.Not_element} if the xml is not an element *)
val fold : ('a -> xml -> 'a) -> 'a -> xml -> 'a
(** {6 Xml Printing} *)
(** Print the xml data structure to a channel into a compact xml string (without
any user-readable formating ). *)
val print_xml : out_channel -> xml -> unit
(** Print the xml data structure into a compact xml string (without
any user-readable formating ). *)
val to_string : xml -> string
(** Print the xml data structure into an user-readable string with
tabs and lines break between different nodes. *)
val to_string_fmt : xml -> string
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