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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
type xml = Xml_datatype.xml =
| Element of (string * (string * string) list * xml list)
| PCData of string
type target = TChannel of out_channel | TBuffer of Buffer.t
type t = target
let make x = x
let buffer_pcdata tmp text =
let l = String.length text in
for p = 0 to l-1 do
match text.[p] with
| '>' -> Buffer.add_string tmp ">"
| '<' -> Buffer.add_string tmp "<"
| '&' ->
if p < l-1 && text.[p+1] = '#' then
Buffer.add_char tmp '&'
else
Buffer.add_string tmp "&"
| '\'' -> Buffer.add_string tmp "'"
| '"' -> Buffer.add_string tmp """
| c -> Buffer.add_char tmp c
done
let buffer_attr tmp (n,v) =
Buffer.add_char tmp ' ';
Buffer.add_string tmp n;
Buffer.add_string tmp "=\"";
let l = String.length v in
for p = 0 to l-1 do
match v.[p] with
| '\\' -> Buffer.add_string tmp "\\\\"
| '"' -> Buffer.add_string tmp "\\\""
| c -> Buffer.add_char tmp c
done;
Buffer.add_char tmp '"'
let to_buffer tmp x =
let pcdata = ref false in
let rec loop = function
| Element (tag,alist,[]) ->
Buffer.add_char tmp '<';
Buffer.add_string tmp tag;
List.iter (buffer_attr tmp) alist;
Buffer.add_string tmp "/>";
pcdata := false;
| Element (tag,alist,l) ->
Buffer.add_char tmp '<';
Buffer.add_string tmp tag;
List.iter (buffer_attr tmp) alist;
Buffer.add_char tmp '>';
pcdata := false;
List.iter loop l;
Buffer.add_string tmp "</";
Buffer.add_string tmp tag;
Buffer.add_char tmp '>';
pcdata := false;
| PCData text ->
if !pcdata then Buffer.add_char tmp ' ';
buffer_pcdata tmp text;
pcdata := true;
in
loop x
let to_string x =
let b = Buffer.create 200 in
to_buffer b x;
Buffer.contents b
let to_string_fmt x =
let tmp = Buffer.create 200 in
let rec loop ?(newl=false) tab = function
| Element (tag,alist,[]) ->
Buffer.add_string tmp tab;
Buffer.add_char tmp '<';
Buffer.add_string tmp tag;
List.iter (buffer_attr tmp) alist;
Buffer.add_string tmp "/>";
if newl then Buffer.add_char tmp '\n';
| Element (tag,alist,[PCData text]) ->
Buffer.add_string tmp tab;
Buffer.add_char tmp '<';
Buffer.add_string tmp tag;
List.iter (buffer_attr tmp) alist;
Buffer.add_string tmp ">";
buffer_pcdata tmp text;
Buffer.add_string tmp "</";
Buffer.add_string tmp tag;
Buffer.add_char tmp '>';
if newl then Buffer.add_char tmp '\n';
| Element (tag,alist,l) ->
Buffer.add_string tmp tab;
Buffer.add_char tmp '<';
Buffer.add_string tmp tag;
List.iter (buffer_attr tmp) alist;
Buffer.add_string tmp ">\n";
List.iter (loop ~newl:true (tab^" ")) l;
Buffer.add_string tmp tab;
Buffer.add_string tmp "</";
Buffer.add_string tmp tag;
Buffer.add_char tmp '>';
if newl then Buffer.add_char tmp '\n';
| PCData text ->
buffer_pcdata tmp text;
if newl then Buffer.add_char tmp '\n';
in
loop "" x;
Buffer.contents tmp
let print t xml =
let tmp, flush = match t with
| TChannel oc ->
let b = Buffer.create 200 in
b, (fun () -> Buffer.output_buffer oc b; flush oc)
| TBuffer b -> b, (fun () -> ()) in
to_buffer tmp xml;
flush ()
;;
|
