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/*
* Copyright (C) 2004-2012 Geometer Plus <[email protected]>
*
* 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 "CHMReferenceCollection.h"
#include "../util/MiscUtil.h"
std::string CHMReferenceCollection::fullReference(const std::string &prefix, std::string reference) {
reference = MiscUtil::decodeHtmlURL(reference);
if ((reference.length() > 0) && (reference[0] == '/')) {
return reference;
}
const int index = reference.rfind("::");
if (index != -1) {
return reference.substr(index + 2);
}
int counter = 0;
while (reference.substr(counter * 3, 3) == "../") {
++counter;
}
int slashIndex = prefix.length() - 1;
for (int i = 0; (i < counter) && (slashIndex > 0); ++i) {
slashIndex = prefix.rfind('/', slashIndex - 1);
}
return prefix.substr(0, slashIndex + 1) + reference.substr(counter * 3);
}
CHMReferenceCollection::CHMReferenceCollection() : myPrefix("/") {
}
const std::string &CHMReferenceCollection::addReference(const std::string &reference, bool doConvert) {
if (reference.empty()) {
return reference;
}
std::string fullRef = doConvert ? fullReference(myPrefix, reference) : MiscUtil::decodeHtmlURL(reference);
const int index = fullRef.find('#');
if (index == -1) {
fullRef = ZLUnicodeUtil::toLower(fullRef);
} else {
fullRef = ZLUnicodeUtil::toLower(fullRef.substr(0, index));
}
std::set<std::string>::const_iterator it = myReferences.find(fullRef);
if (it != myReferences.end()) {
return *it;
}
myReferences.insert(fullRef);
myReferenceQueue.push(fullRef);
return myReferenceQueue.back();
}
bool CHMReferenceCollection::containsNonProcessedReferences() const {
return !myReferenceQueue.empty();
}
const std::string CHMReferenceCollection::nextReference() {
if (myReferenceQueue.empty()) {
return "";
}
const std::string front = myReferenceQueue.front();
myReferenceQueue.pop();
return front;
}
void CHMReferenceCollection::setPrefix(const std::string &fileName) {
myPrefix = MiscUtil::decodeHtmlURL(fileName.substr(0, fileName.rfind('/') + 1));
}
const std::string &CHMReferenceCollection::prefix() const {
return myPrefix;
}
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