michael@0: 
michael@0: /*
michael@0:  * Copyright 2011 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #include "SkXMLParser.h"
michael@0: #include "SkStream.h"
michael@0: 
michael@0: static void reset(SkXMLPullParser::Curr* curr)
michael@0: {
michael@0:     curr->fEventType = SkXMLPullParser::ERROR;
michael@0:     curr->fName = "";
michael@0:     curr->fAttrInfoCount = 0;
michael@0:     curr->fIsWhitespace = false;
michael@0: }
michael@0: 
michael@0: SkXMLPullParser::SkXMLPullParser() : fStream(NULL)
michael@0: {
michael@0:     fCurr.fEventType = ERROR;
michael@0:     fDepth = -1;
michael@0: }
michael@0: 
michael@0: SkXMLPullParser::SkXMLPullParser(SkStream* stream) : fStream(NULL)
michael@0: {
michael@0:     fCurr.fEventType = ERROR;
michael@0:     fDepth = 0;
michael@0: 
michael@0:     this->setStream(stream);
michael@0: }
michael@0: 
michael@0: SkXMLPullParser::~SkXMLPullParser()
michael@0: {
michael@0:     this->setStream(NULL);
michael@0: }
michael@0: 
michael@0: SkStream* SkXMLPullParser::setStream(SkStream* stream)
michael@0: {
michael@0:     if (fStream && !stream)
michael@0:         this->onExit();
michael@0: 
michael@0:     SkRefCnt_SafeAssign(fStream, stream);
michael@0: 
michael@0:     if (fStream)
michael@0:     {
michael@0:         fCurr.fEventType = START_DOCUMENT;
michael@0:         this->onInit();
michael@0:     }
michael@0:     else
michael@0:     {
michael@0:         fCurr.fEventType = ERROR;
michael@0:     }
michael@0:     fDepth = 0;
michael@0: 
michael@0:     return fStream;
michael@0: }
michael@0: 
michael@0: SkXMLPullParser::EventType SkXMLPullParser::nextToken()
michael@0: {
michael@0:     switch (fCurr.fEventType) {
michael@0:     case ERROR:
michael@0:     case END_DOCUMENT:
michael@0:         break;
michael@0:     case END_TAG:
michael@0:         fDepth -= 1;
michael@0:         // fall through
michael@0:     default:
michael@0:         reset(&fCurr);
michael@0:         fCurr.fEventType = this->onNextToken();
michael@0:         break;
michael@0:     }
michael@0: 
michael@0:     switch (fCurr.fEventType) {
michael@0:     case START_TAG:
michael@0:         fDepth += 1;
michael@0:         break;
michael@0:     default:
michael@0:         break;
michael@0:     }
michael@0: 
michael@0:     return fCurr.fEventType;
michael@0: }
michael@0: 
michael@0: const char* SkXMLPullParser::getName()
michael@0: {
michael@0:     switch (fCurr.fEventType) {
michael@0:     case START_TAG:
michael@0:     case END_TAG:
michael@0:         return fCurr.fName;
michael@0:     default:
michael@0:         return NULL;
michael@0:     }
michael@0: }
michael@0: 
michael@0: const char* SkXMLPullParser::getText()
michael@0: {
michael@0:     switch (fCurr.fEventType) {
michael@0:     case TEXT:
michael@0:     case IGNORABLE_WHITESPACE:
michael@0:         return fCurr.fName;
michael@0:     default:
michael@0:         return NULL;
michael@0:     }
michael@0: }
michael@0: 
michael@0: bool SkXMLPullParser::isWhitespace()
michael@0: {
michael@0:     switch (fCurr.fEventType) {
michael@0:     case IGNORABLE_WHITESPACE:
michael@0:         return true;
michael@0:     case TEXT:
michael@0:     case CDSECT:
michael@0:         return fCurr.fIsWhitespace;
michael@0:     default:
michael@0:         return false;   // unknown/illegal
michael@0:     }
michael@0: }
michael@0: 
michael@0: int SkXMLPullParser::getAttributeCount()
michael@0: {
michael@0:     return fCurr.fAttrInfoCount;
michael@0: }
michael@0: 
michael@0: void SkXMLPullParser::getAttributeInfo(int index, AttrInfo* info)
michael@0: {
michael@0:     SkASSERT((unsigned)index < (unsigned)fCurr.fAttrInfoCount);
michael@0: 
michael@0:     if (info)
michael@0:         *info = fCurr.fAttrInfos[index];
michael@0: }
michael@0: 
michael@0: bool SkXMLPullParser::onEntityReplacement(const char name[],
michael@0:                                           SkString* replacement)
michael@0: {
michael@0:     // TODO: std 5 entities here
michael@0:     return false;
michael@0: }