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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Xml_datatype
type xml = Xml_datatype.xml
type target = TChannel of out_channel | TBuffer of Buffer.t
type t = target
let make x = x
let buffer_pcdata tmp text =
let output = Buffer.add_string tmp in
let output' = Buffer.add_char tmp in
let l = String.length text in
for p = 0 to l-1 do
match text.[p] with
| ' ' -> output " ";
| '>' -> output ">"
| '<' -> output "<"
| '&' ->
if p < l - 1 && text.[p + 1] = '#' then
output' '&'
else
output "&"
| '\'' -> output "'"
| '"' -> output """
| c -> output' c
done
let buffer_attr tmp (n,v) =
let output = Buffer.add_string tmp in
let output' = Buffer.add_char tmp in
output' ' ';
output n;
output "=\"";
let l = String.length v in
for p = 0 to l - 1 do
match v.[p] with
| '\\' -> output "\\\\"
| '"' -> output "\\\""
| '<' -> output "<"
| '&' -> output "&"
| c -> output' c
done;
output' '"'
let to_buffer tmp x =
let pcdata = ref false in
let output = Buffer.add_string tmp in
let output' = Buffer.add_char tmp in
let rec loop = function
| Element (tag,alist,[]) ->
output' '<';
output tag;
List.iter (buffer_attr tmp) alist;
output "/>";
pcdata := false;
| Element (tag,alist,l) ->
output' '<';
output tag;
List.iter (buffer_attr tmp) alist;
output' '>';
pcdata := false;
List.iter loop l;
output "</";
output tag;
output' '>';
pcdata := false;
| PCData text ->
if !pcdata then output' ' ';
buffer_pcdata tmp text;
pcdata := true;
in
loop x
let pcdata_to_string s =
let b = Buffer.create 13 in
buffer_pcdata b s;
Buffer.contents b
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 output = Buffer.add_string tmp in
let output' = Buffer.add_char tmp in
let rec loop ?(newl=false) tab = function
| Element (tag, alist, []) ->
output tab;
output' '<';
output tag;
List.iter (buffer_attr tmp) alist;
output "/>";
if newl then output' '\n';
| Element (tag, alist, [PCData text]) ->
output tab;
output' '<';
output tag;
List.iter (buffer_attr tmp) alist;
output ">";
buffer_pcdata tmp text;
output "</";
output tag;
output' '>';
if newl then output' '\n';
| Element (tag, alist, l) ->
output tab;
output' '<';
output tag;
List.iter (buffer_attr tmp) alist;
output ">\n";
List.iter (loop ~newl:true (tab^" ")) l;
output tab;
output "</";
output tag;
output' '>';
if newl then output' '\n';
| PCData text ->
buffer_pcdata tmp text;
if newl then output' '\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 ()
|
