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/*
* Copyright (C)2005-2017 Haxe Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package haxe.xml;
/**
This class provides utility methods to convert Xml instances to
String representation.
**/
class Printer {
/**
Convert `Xml` to string representation.
Set `pretty` to `true` to prettify the result.
**/
static public function print(xml:Xml, ?pretty = false) {
var printer = new Printer(pretty);
printer.writeNode(xml, "");
return printer.output.toString();
}
var output:StringBuf;
var pretty:Bool;
function new(pretty) {
output = new StringBuf();
this.pretty = pretty;
}
function writeNode(value:Xml, tabs:String) {
switch (value.nodeType) {
case CData:
write(tabs + "<![CDATA[");
write(StringTools.trim(value.nodeValue));
write("]]>");
newline();
case Comment:
var commentContent:String = value.nodeValue;
commentContent = ~/[\n\r\t]+/g.replace(commentContent, "");
commentContent = "<!--" + commentContent + "-->";
write(tabs);
write(StringTools.trim(commentContent));
newline();
case Document:
for (child in value) {
writeNode(child, tabs);
}
case Element:
write(tabs + "<");
write(value.nodeName);
for (attribute in value.attributes()) {
write(" " + attribute + "=\"");
write(StringTools.htmlEscape(value.get(attribute), true));
write("\"");
}
if (hasChildren(value)) {
write(">");
newline();
for (child in value) {
writeNode(child, pretty ? tabs + "\t" : tabs);
}
write(tabs + "</");
write(value.nodeName);
write(">");
newline();
} else {
write("/>");
newline();
}
case PCData:
var nodeValue:String = value.nodeValue;
if (nodeValue.length != 0) {
write(tabs + StringTools.htmlEscape(nodeValue));
newline();
}
case ProcessingInstruction:
write("<?" + value.nodeValue + "?>");
newline();
case DocType:
write("<!DOCTYPE " + value.nodeValue + ">");
newline();
}
}
inline function write(input:String) {
output.add(input);
}
inline function newline() {
if (pretty) {
output.add("\n");
}
}
function hasChildren(value:Xml):Bool {
for (child in value) {
switch (child.nodeType) {
case Element, PCData:
return true;
case CData, Comment:
if (StringTools.ltrim(child.nodeValue).length != 0) {
return true;
}
case _:
}
}
return false;
}
}
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