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/*
* Copyright (C) 2004-2012 Geometer Plus <contact@geometerplus.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <ZLUnicodeUtil.h>
#include "ORDescriptionReader.h"
#include "../util/EntityFilesCollector.h"
#include "../../library/Book.h"
ORDescriptionReader::ORDescriptionReader(Book &book) : myBook(book) {
myBook.removeAllAuthors();
myBook.setTitle("");
}
// TODO: replace "dc" by real DC scheme name
static const std::string METADATA = "metadata";
static const std::string TITLE = "dc:title";
static const std::string AUTHOR_TAG = "dc:creator";
static const std::string AUTHOR_ROLE = "aut";
void ORDescriptionReader::characterDataHandler(const char *text, std::size_t len) {
switch (myReadState) {
case READ_NONE:
break;
case READ_AUTHOR:
myCurrentAuthor.append(text, len);
break;
case READ_TITLE:
myBook.setTitle(myBook.title() + std::string(text, len));
break;
}
}
void ORDescriptionReader::startElementHandler(const char *tag, const char **attributes) {
const std::string tagString = ZLUnicodeUtil::toLower(tag);
if (METADATA == tagString) {
myReadMetaData = true;
} else if (myReadMetaData) {
if (TITLE == tagString) {
myReadState = READ_TITLE;
} else if (AUTHOR_TAG == tagString) {
const char *role = attributeValue(attributes, "role");
if ((role != 0) && (AUTHOR_ROLE == role)) {
myReadState = READ_AUTHOR;
}
}
}
}
void ORDescriptionReader::endElementHandler(const char *tag) {
const std::string tagString = ZLUnicodeUtil::toLower(tag);
if (METADATA == tagString) {
interrupt();
} else {
if (!myCurrentAuthor.empty()) {
myBook.addAuthor(myCurrentAuthor);
myCurrentAuthor.erase();
}
myReadState = READ_NONE;
}
}
bool ORDescriptionReader::readMetaInfo() {
myReadMetaData = false;
myReadState = READ_NONE;
return readDocument(myBook.file());
}
const std::vector<std::string> &ORDescriptionReader::externalDTDs() const {
return EntityFilesCollector::Instance().externalDTDs("xhtml");
}
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