131 lines
2.9 KiB
C++
131 lines
2.9 KiB
C++
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/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/libjingle/xmllite/xmlbuilder.h"
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#include <set>
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#include <vector>
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#include "webrtc/libjingle/xmllite/xmlconstants.h"
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#include "webrtc/libjingle/xmllite/xmlelement.h"
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#include "webrtc/base/common.h"
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namespace buzz {
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XmlBuilder::XmlBuilder() :
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pelCurrent_(NULL),
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pelRoot_(),
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pvParents_(new std::vector<XmlElement *>()) {
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}
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void
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XmlBuilder::Reset() {
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pelRoot_.reset();
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pelCurrent_ = NULL;
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pvParents_->clear();
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}
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XmlElement *
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XmlBuilder::BuildElement(XmlParseContext * pctx,
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const char * name, const char ** atts) {
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QName tagName(pctx->ResolveQName(name, false));
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if (tagName.IsEmpty())
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return NULL;
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XmlElement * pelNew = new XmlElement(tagName);
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if (!*atts)
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return pelNew;
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std::set<QName> seenNonlocalAtts;
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while (*atts) {
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QName attName(pctx->ResolveQName(*atts, true));
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if (attName.IsEmpty()) {
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delete pelNew;
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return NULL;
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}
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// verify that namespaced names are unique
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if (!attName.Namespace().empty()) {
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if (seenNonlocalAtts.count(attName)) {
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delete pelNew;
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return NULL;
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}
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seenNonlocalAtts.insert(attName);
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}
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pelNew->AddAttr(attName, std::string(*(atts + 1)));
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atts += 2;
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}
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return pelNew;
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}
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void
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XmlBuilder::StartElement(XmlParseContext * pctx,
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const char * name, const char ** atts) {
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XmlElement * pelNew = BuildElement(pctx, name, atts);
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if (pelNew == NULL) {
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pctx->RaiseError(XML_ERROR_SYNTAX);
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return;
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}
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if (!pelCurrent_) {
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pelCurrent_ = pelNew;
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pelRoot_.reset(pelNew);
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pvParents_->push_back(NULL);
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} else {
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pelCurrent_->AddElement(pelNew);
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pvParents_->push_back(pelCurrent_);
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pelCurrent_ = pelNew;
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}
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}
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void
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XmlBuilder::EndElement(XmlParseContext * pctx, const char * name) {
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RTC_UNUSED(pctx);
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RTC_UNUSED(name);
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pelCurrent_ = pvParents_->back();
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pvParents_->pop_back();
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}
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void
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XmlBuilder::CharacterData(XmlParseContext * pctx,
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const char * text, int len) {
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RTC_UNUSED(pctx);
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if (pelCurrent_) {
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pelCurrent_->AddParsedText(text, len);
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}
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}
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void
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XmlBuilder::Error(XmlParseContext * pctx, XML_Error err) {
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RTC_UNUSED(pctx);
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RTC_UNUSED(err);
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pelRoot_.reset(NULL);
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pelCurrent_ = NULL;
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pvParents_->clear();
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}
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XmlElement *
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XmlBuilder::CreateElement() {
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return pelRoot_.release();
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}
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XmlElement *
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XmlBuilder::BuiltElement() {
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return pelRoot_.get();
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}
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XmlBuilder::~XmlBuilder() {
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}
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} // namespace buzz
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