diff options
Diffstat (limited to 'third_party/libjingle/source/talk/xmllite/xmlbuilder.cc')
-rw-r--r-- | third_party/libjingle/source/talk/xmllite/xmlbuilder.cc | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/third_party/libjingle/source/talk/xmllite/xmlbuilder.cc b/third_party/libjingle/source/talk/xmllite/xmlbuilder.cc new file mode 100644 index 0000000..b02dfe0 --- /dev/null +++ b/third_party/libjingle/source/talk/xmllite/xmlbuilder.cc @@ -0,0 +1,152 @@ +/* + * libjingle + * Copyright 2004--2005, Google Inc. + * + * 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. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +#include <vector> +#include <set> +#include "talk/base/common.h" +#include "talk/xmllite/xmlelement.h" +#include "talk/xmllite/xmlbuilder.h" +#ifdef EXPAT_RELATIVE_PATH +#include "lib/expat.h" +#else +#include "third_party/expat/v2_0_1/Source/lib/expat.h" +#endif // EXPAT_RELATIVE_PATH + +namespace buzz { + +XmlBuilder::XmlBuilder() : + pelCurrent_(NULL), + pelRoot_(NULL), + pvParents_(new std::vector<XmlElement *>()) { +} + +void +XmlBuilder::Reset() { + pelRoot_.reset(); + pelCurrent_ = NULL; + pvParents_->clear(); +} + +XmlElement * +XmlBuilder::BuildElement(XmlParseContext * pctx, + const char * name, const char ** atts) { + QName tagName(pctx->ResolveQName(name, false)); + if (tagName == QN_EMPTY) + return NULL; + + XmlElement * pelNew = new XmlElement(tagName); + + if (!*atts) + return pelNew; + + std::set<QName> seenNonlocalAtts; + + while (*atts) { + QName attName(pctx->ResolveQName(*atts, true)); + if (attName == QN_EMPTY) { + delete pelNew; + return NULL; + } + + // verify that namespaced names are unique + if (!attName.Namespace().empty()) { + if (seenNonlocalAtts.count(attName)) { + delete pelNew; + return NULL; + } + seenNonlocalAtts.insert(attName); + } + + pelNew->AddAttr(attName, std::string(*(atts + 1))); + atts += 2; + } + + return pelNew; +} + +void +XmlBuilder::StartElement(XmlParseContext * pctx, + const char * name, const char ** atts) { + XmlElement * pelNew = BuildElement(pctx, name, atts); + if (pelNew == NULL) { + pctx->RaiseError(XML_ERROR_SYNTAX); + return; + } + + if (!pelCurrent_) { + pelCurrent_ = pelNew; + pelRoot_.reset(pelNew); + pvParents_->push_back(NULL); + } else { + pelCurrent_->AddElement(pelNew); + pvParents_->push_back(pelCurrent_); + pelCurrent_ = pelNew; + } +} + +void +XmlBuilder::EndElement(XmlParseContext * pctx, const char * name) { + UNUSED(pctx); + UNUSED(name); + pelCurrent_ = pvParents_->back(); + pvParents_->pop_back(); +} + +void +XmlBuilder::CharacterData(XmlParseContext * pctx, + const char * text, int len) { + UNUSED(pctx); + if (pelCurrent_) { + pelCurrent_->AddParsedText(text, len); + } +} + +void +XmlBuilder::Error(XmlParseContext * pctx, XML_Error err) { + UNUSED(pctx); + UNUSED(err); + pelRoot_.reset(NULL); + pelCurrent_ = NULL; + pvParents_->clear(); +} + +XmlElement * +XmlBuilder::CreateElement() { + return pelRoot_.release(); +} + +XmlElement * +XmlBuilder::BuiltElement() { + return pelRoot_.get(); +} + +XmlBuilder::~XmlBuilder() { +} + + + +} |