1 files changed, 91 insertions, 0 deletions
diff --git a/reader/src/formats/chm/CHMReferenceCollection.cpp b/reader/src/formats/chm/CHMReferenceCollection.cpp
new file mode 100644
index 0000000..f29dd28
--- /dev/null
+++ b/reader/src/formats/chm/CHMReferenceCollection.cpp
@@ -0,0 +1,91 @@
+/*
+ * 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 "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;
+}