mirror of
https://github.com/rn10950/RetroZilla.git
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347 lines
10 KiB
C++
347 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is TransforMiiX XSLT processor code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Peter Van der Beken <peterv@propagandism.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "txXMLOutput.h"
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const int txXMLOutput::DEFAULT_INDENT = 2;
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txOutAttr::txOutAttr(PRInt32 aNsID, nsIAtom* aLocalName,
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const nsAString& aValue) :
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mName(aNsID, aLocalName),
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mValue(aValue),
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mShorthand(MB_FALSE)
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{
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}
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txXMLOutput::txXMLOutput(txOutputFormat* aFormat, ostream* aOut)
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: mOut(aOut),
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mUseEmptyElementShorthand(MB_TRUE),
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mHaveDocumentElement(MB_FALSE),
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mStartTagOpen(MB_FALSE),
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mAfterEndTag(MB_FALSE),
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mInCDATASection(MB_FALSE),
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mIndentLevel(0)
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{
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mOutputFormat.merge(*aFormat);
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mOutputFormat.setFromDefaults();
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}
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txXMLOutput::~txXMLOutput()
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{
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}
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void txXMLOutput::attribute(const nsAString& aName,
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const PRInt32 aNsID,
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const nsAString& aValue)
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{
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if (!mStartTagOpen)
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// XXX Signal this? (can't add attributes after element closed)
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return;
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txListIterator iter(&mAttributes);
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nsCOMPtr<nsIAtom> localName = do_GetAtom(XMLUtils::getLocalPart(aName));
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txExpandedName att(aNsID, localName);
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txOutAttr* setAtt = 0;
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while ((setAtt = (txOutAttr*)iter.next())) {
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if (setAtt->mName == att) {
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setAtt->mValue = aValue;
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break;
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}
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}
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if (!setAtt) {
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setAtt = new txOutAttr(aNsID, localName, aValue);
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mAttributes.add(setAtt);
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}
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}
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void txXMLOutput::characters(const nsAString& aData, PRBool aDOE)
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{
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closeStartTag(MB_FALSE);
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if (aDOE) {
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printUTF8Chars(aData);
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return;
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}
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if (mInCDATASection) {
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PRUint32 length = aData.Length();
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*mOut << CDATA_START;
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if (length <= 3) {
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printUTF8Chars(aData);
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}
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else {
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PRUint32 j = 0;
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nsAString::const_iterator iter;
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aData.BeginReading(iter);
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mBuffer[j++] = *(iter++);
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mBuffer[j++] = *(iter++);
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mBuffer[j++] = *(iter++);
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nsAString::const_iterator end;
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aData.EndReading(end);
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while (iter != end) {
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mBuffer[j++] = *(iter++);
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if (mBuffer[(j - 1) % 4] == ']' &&
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mBuffer[j % 4] == ']' &&
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mBuffer[(j + 1) % 4] == '>') {
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*mOut << CDATA_END;
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*mOut << CDATA_START;
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}
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j = j % 4;
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printUTF8Char(mBuffer[j]);
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}
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j = ++j % 4;
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printUTF8Char(mBuffer[j]);
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j = ++j % 4;
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printUTF8Char(mBuffer[j]);
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j = ++j % 4;
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printUTF8Char(mBuffer[j]);
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}
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*mOut << CDATA_END;
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}
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else {
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printWithXMLEntities(aData);
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}
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}
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void txXMLOutput::comment(const nsAString& aData)
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{
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closeStartTag(MB_FALSE);
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if (mOutputFormat.mIndent == eTrue) {
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for (PRUint32 i = 0; i < mIndentLevel; i++)
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*mOut << ' ';
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}
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*mOut << COMMENT_START;
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printUTF8Chars(aData);
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*mOut << COMMENT_END;
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if (mOutputFormat.mIndent == eTrue)
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*mOut << endl;
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}
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void txXMLOutput::endDocument(nsresult aResult)
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{
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}
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void txXMLOutput::endElement(const nsAString& aName,
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const PRInt32 aNsID)
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{
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MBool newLine = (mOutputFormat.mIndent == eTrue) && mAfterEndTag;
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MBool writeEndTag = !(mStartTagOpen && mUseEmptyElementShorthand);
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closeStartTag(mUseEmptyElementShorthand);
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if (newLine)
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*mOut << endl;
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if (mOutputFormat.mIndent == eTrue)
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mIndentLevel -= DEFAULT_INDENT;
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if (writeEndTag) {
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if (newLine) {
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for (PRUint32 i = 0; i < mIndentLevel; i++)
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*mOut << ' ';
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}
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*mOut << L_ANGLE_BRACKET << FORWARD_SLASH;
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printUTF8Chars(aName);
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*mOut << R_ANGLE_BRACKET;
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}
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if (mOutputFormat.mIndent == eTrue)
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*mOut << endl;
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mAfterEndTag = MB_TRUE;
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mInCDATASection = (MBool)mCDATASections.pop();
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}
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void txXMLOutput::processingInstruction(const nsAString& aTarget,
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const nsAString& aData)
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{
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closeStartTag(MB_FALSE);
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if (mOutputFormat.mIndent == eTrue) {
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for (PRUint32 i = 0; i < mIndentLevel; i++)
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*mOut << ' ';
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}
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*mOut << PI_START;
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printUTF8Chars(aTarget);
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*mOut << SPACE;
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printUTF8Chars(aData);
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*mOut << PI_END;
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if (mOutputFormat.mIndent == eTrue)
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*mOut << endl;
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}
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void txXMLOutput::startDocument()
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{
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if (mOutputFormat.mMethod == eMethodNotSet) {
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// XXX We should "cache" content until we have a
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// document element
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}
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*mOut << PI_START << XML_DECL << DOUBLE_QUOTE;
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*mOut << XML_VERSION;
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*mOut << DOUBLE_QUOTE << " encoding=\"UTF-8\"" << PI_END << endl;
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}
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void txXMLOutput::startElement(const nsAString& aName,
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const PRInt32 aNsID)
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{
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if (!mHaveDocumentElement) {
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// XXX Output doc type and "cached" content
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mHaveDocumentElement = MB_TRUE;
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}
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MBool newLine = mStartTagOpen || mAfterEndTag;
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closeStartTag(MB_FALSE);
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if (mOutputFormat.mIndent == eTrue) {
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if (newLine) {
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*mOut << endl;
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for (PRUint32 i = 0; i < mIndentLevel; i++)
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*mOut << ' ';
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}
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}
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*mOut << L_ANGLE_BRACKET;
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printUTF8Chars(aName);
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mStartTagOpen = MB_TRUE;
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if (mOutputFormat.mIndent == eTrue)
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mIndentLevel += DEFAULT_INDENT;
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mCDATASections.push((void*)mInCDATASection);
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mInCDATASection = MB_FALSE;
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nsCOMPtr<nsIAtom> localName = do_GetAtom(aName);
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txExpandedName currentElement(aNsID, localName);
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txListIterator iter(&(mOutputFormat.mCDATASectionElements));
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while (iter.hasNext()) {
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if (currentElement == *(txExpandedName*)iter.next()) {
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mInCDATASection = MB_TRUE;
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break;
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}
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}
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}
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void txXMLOutput::closeStartTag(MBool aUseEmptyElementShorthand)
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{
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mAfterEndTag = aUseEmptyElementShorthand;
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if (mStartTagOpen) {
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txListIterator iter(&mAttributes);
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txOutAttr* att;
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while ((att = (txOutAttr*)iter.next())) {
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*mOut << SPACE;
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const char* attrVal;
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att->mName.mLocalName->GetUTF8String(&attrVal);
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*mOut << attrVal;
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if (!att->mShorthand) {
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*mOut << EQUALS << DOUBLE_QUOTE;
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printWithXMLEntities(att->mValue, MB_TRUE);
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*mOut << DOUBLE_QUOTE;
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}
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delete (txOutAttr*)iter.remove();
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}
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if (aUseEmptyElementShorthand)
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*mOut << FORWARD_SLASH;
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*mOut << R_ANGLE_BRACKET;
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mStartTagOpen = MB_FALSE;
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}
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}
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void txXMLOutput::printUTF8Char(PRUnichar& ch)
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{
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// PRUnichar is 16-bits so we only need to cover up to 0xFFFF
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// 0x0000-0x007F
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if (ch < 128) {
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*mOut << (char)ch;
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}
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// 0x0080-0x07FF
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else if (ch < 2048) {
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*mOut << (char) (192+(ch/64)); // 0xC0 + x/64
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*mOut << (char) (128+(ch%64)); // 0x80 + x%64
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}
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// 0x800-0xFFFF
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else {
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*mOut << (char) (224+(ch/4096)); // 0xE0 + x/64^2
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*mOut << (char) (128+((ch/64)%64)); // 0x80 + (x/64)%64
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*mOut << (char) (128+(ch%64)); // 0x80 + x%64
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}
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}
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void txXMLOutput::printUTF8Chars(const nsAString& aData)
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{
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*mOut << NS_ConvertUCS2toUTF8(aData).get();
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}
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void txXMLOutput::printWithXMLEntities(const nsAString& aData,
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MBool aAttribute)
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{
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nsAString::const_iterator iter, end;
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aData.EndReading(end);
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for (aData.BeginReading(iter); iter != end; ++iter) {
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PRUnichar currChar = *iter;
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switch (currChar) {
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case AMPERSAND:
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*mOut << AMP_ENTITY;
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break;
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case APOSTROPHE:
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if (aAttribute)
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*mOut << APOS_ENTITY;
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else
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printUTF8Char(currChar);
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break;
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case GT:
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*mOut << GT_ENTITY;
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break;
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case LT:
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*mOut << LT_ENTITY;
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break;
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case QUOTE:
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if (aAttribute)
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*mOut << QUOT_ENTITY;
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else
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printUTF8Char(currChar);
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break;
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default:
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printUTF8Char(currChar);
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break;
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}
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}
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*mOut << flush;
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}
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