/*
* Copyright 2004-2006, Thorbjørn Lindeijer <thorbjorn@lindeijer.nl>
* Copyright 2004-2006, Adam Turk <aturk@biggeruniverse.com>
*
* This file is part of libtiled-java.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package tiled.io.xml;
import java.lang.String;
import java.io.Writer;
import java.io.IOException;
import java.util.Stack;
/**
* A simple helper class to write an XML file, based on
* http://www.xmlsoft.org/html/libxml-xmlwriter.html
*/
public class XMLWriter
{
private boolean bIndent = true;
private String indentString = " ";
private String newLine = "\n";
private final Writer w;
private final Stack<String> openElements;
private boolean bStartTagOpen;
private boolean bDocumentOpen;
public XMLWriter(Writer writer) {
openElements = new Stack<String>();
w = writer;
}
public void setIndent(boolean bIndent) {
this.bIndent = bIndent;
newLine = bIndent ? "\n" : "";
}
public void setIndentString(String indentString) {
this.indentString = indentString;
}
public void startDocument() throws IOException {
startDocument("1.0");
}
public void startDocument(String version) throws IOException {
w.write("<?xml version=\"" + version + "\" encoding=\"UTF-8\"?>"
+ newLine);
bDocumentOpen = true;
}
public void writeDocType(String name, String pubId, String sysId)
throws IOException, XMLWriterException {
if (!bDocumentOpen) {
throw new XMLWriterException(
"Can't write DocType, no open document.");
} else if (!openElements.isEmpty()) {
throw new XMLWriterException(
"Can't write DocType, open elements exist.");
}
w.write("<!DOCTYPE " + name + " ");
if (pubId != null) {
w.write("PUBLIC \"" + pubId + "\"");
if (sysId != null) {
w.write(" \"" + sysId + "\"");
}
} else if (sysId != null) {
w.write("SYSTEM \"" + sysId + "\"");
}
w.write(">" + newLine);
}
public void startElement(String name)
throws IOException, XMLWriterException {
if (!bDocumentOpen) {
throw new XMLWriterException(
"Can't start new element, no open document.");
}
if (bStartTagOpen) {
w.write(">" + newLine);
}
writeIndent();
w.write("<" + name);
openElements.push(name);
bStartTagOpen = true;
}
public void endDocument() throws IOException {
// End all open elements.
while (!openElements.isEmpty()) {
endElement();
}
w.flush(); //writers do not always flush automatically...
}
public void endElement() throws IOException {
String name = openElements.pop();
// If start tag still open, end with />, else with </name>.
if (bStartTagOpen) {
w.write("/>" + newLine);
bStartTagOpen = false;
} else {
writeIndent();
w.write("</" + name + ">" + newLine);
}
// Set document closed when last element is closed
if (openElements.isEmpty()) {
bDocumentOpen = false;
}
}
public void writeAttribute(String name, String content)
throws IOException, XMLWriterException {
if (bStartTagOpen) {
String escapedContent = (content != null) ?
content.replaceAll("\"", """) : "";
w.write(" " + name + "=\"" + escapedContent + "\"");
} else {
throw new XMLWriterException(
"Can't write attribute without open start tag.");
}
}
public void writeAttribute(String name, int content)
throws IOException, XMLWriterException {
writeAttribute(name, String.valueOf(content));
}
public void writeAttribute(String name, float content)
throws IOException, XMLWriterException {
writeAttribute(name, String.valueOf(content));
}
public void writeCDATA(String content) throws IOException {
if (bStartTagOpen) {
w.write(">" + newLine);
bStartTagOpen = false;
}
writeIndent();
w.write(content + newLine);
}
public void writeComment(String content) throws IOException {
if (bStartTagOpen) {
w.write(">" + newLine);
bStartTagOpen = false;
}
writeIndent();
w.write("<!-- " + content + " -->" + newLine);
}
public void writeElement(String name, String content)
throws IOException, XMLWriterException {
startElement(name);
writeCDATA(content);
endElement();
}
private void writeIndent() throws IOException {
if (bIndent) {
for (int i = 0; i < openElements.size(); i++) {
w.write(indentString);
}
}
}
}